for Journals by Title or ISSN
for Articles by Keywords
  Subjects -> ENGINEERING (Total: 1957 journals)
    - CHEMICAL ENGINEERING (150 journals)
    - CIVIL ENGINEERING (146 journals)
    - ELECTRICAL ENGINEERING (84 journals)
    - ENGINEERING (1124 journals)
    - HYDRAULIC ENGINEERING (43 journals)
    - INDUSTRIAL ENGINEERING (53 journals)
    - MECHANICAL ENGINEERING (73 journals)

CIVIL ENGINEERING (146 journals)                  1 2     

ACI Structural Journal     Full-text available via subscription   (2 followers)
Acta Polytechnica : Journal of Advanced Engineering     Open Access  
Acta Structilia : Journal for the Physical and Development Sciences     Open Access   (2 followers)
Advances in Civil Engineering     Open Access   (22 followers)
Advances in Structural Engineering     Full-text available via subscription   (18 followers)
Ambiente Construído     Open Access   (2 followers)
American Journal of Civil Engineering and Architecture     Open Access   (15 followers)
Architectural Engineering     Open Access   (3 followers)
Archives of Civil Engineering     Open Access   (7 followers)
Archives of Hydro-Engineering and Environmental Mechanics     Open Access   (2 followers)
ATBU Journal of Environmental Technology     Open Access  
Australian Journal of Structural Engineering     Full-text available via subscription   (2 followers)
Baltic Journal of Road and Bridge Engineering     Full-text available via subscription  
BER : Building and Construction : Full Survey     Full-text available via subscription   (8 followers)
BER : Building Contractors' Survey     Full-text available via subscription   (3 followers)
BER : Building Sub-Contractors' Survey     Full-text available via subscription   (2 followers)
BER : Survey of Business Conditions in Building and Construction : An Executive Summary     Full-text available via subscription   (4 followers)
Berkeley Planning Journal     Open Access   (5 followers)
Bridge Structures : Assessment, Design and Construction     Hybrid Journal   (10 followers)
Building and Environment     Hybrid Journal   (10 followers)
Building Women     Full-text available via subscription  
Built Environment Project and Asset Management     Hybrid Journal   (11 followers)
Canadian Journal of Civil Engineering     Full-text available via subscription   (10 followers)
Case Studies in Engineering Failure Analysis     Open Access   (3 followers)
Cement and Concrete Composites     Hybrid Journal   (6 followers)
Change Over Time     Full-text available via subscription   (3 followers)
Civil and Environmental Research     Open Access   (11 followers)
Civil Engineering     Hybrid Journal   (10 followers)
Civil Engineering = Siviele Ingenieurswese     Full-text available via subscription   (4 followers)
Civil Engineering and Environmental Systems     Hybrid Journal   (3 followers)
Civil Engineering and Technology     Open Access   (1 follower)
Civil Engineering Dimension     Open Access   (3 followers)
Cohesion and Structure     Full-text available via subscription   (1 follower)
Composite Structures     Hybrid Journal   (33 followers)
Computer-aided Civil and Infrastructure Engineering     Hybrid Journal   (7 followers)
Computers & Structures     Hybrid Journal   (13 followers)
Concrete Research Letters     Open Access   (1 follower)
Constructii : Journal of Civil Engineering Research     Open Access   (4 followers)
Construction Engineering     Open Access   (3 followers)
Construction Management and Economics     Hybrid Journal   (25 followers)
Construction Science     Open Access   (1 follower)
Constructive Approximation     Hybrid Journal   (1 follower)
Current Advances in Civil Engineering     Open Access  
Earthquake Engineering and Structural Dynamics     Hybrid Journal   (10 followers)
Enfoque UTE     Open Access   (1 follower)
Engineering Project Organization Journal     Hybrid Journal   (4 followers)
Engineering Structures     Hybrid Journal   (11 followers)
Engineering Structures and Technologies     Hybrid Journal   (2 followers)
Engineering, Construction and Architectural Management     Hybrid Journal   (15 followers)
European Journal of Environmental and Civil Engineering     Hybrid Journal   (2 followers)
Fatigue & Fracture of Engineering Materials and Structures     Hybrid Journal   (12 followers)
Frattura ed Integrità Strutturale : Fracture and Structural Integrity     Open Access   (1 follower)
Frontiers of Structural and Civil Engineering     Hybrid Journal   (4 followers)
Geomaterials     Open Access   (2 followers)
Geosystem Engineering     Hybrid Journal   (3 followers)
Geotechnik     Hybrid Journal  
Géotechnique Letters     Hybrid Journal   (1 follower)
HBRC Journal     Open Access   (1 follower)
HVAC&R Research     Hybrid Journal   (1 follower)
Indoor and Built Environment     Hybrid Journal   (1 follower)
Ingenio Magno     Open Access  
Insight - Non-Destructive Testing and Condition Monitoring     Full-text available via subscription   (4 followers)
International Journal for Service Learning in Engineering     Open Access  
International Journal of 3-D Information Modeling     Full-text available via subscription   (2 followers)
International Journal of Advanced Structural Engineering     Open Access   (6 followers)
International Journal of Concrete Structures and Materials     Open Access   (5 followers)
International Journal of Construction Engineering and Management     Open Access   (3 followers)
International Journal of Protective Structures     Full-text available via subscription   (5 followers)
International Journal of Steel Structures     Hybrid Journal   (3 followers)
International Journal of Structural Engineering     Hybrid Journal   (6 followers)
International Journal of Structural Integrity     Hybrid Journal  
International Journal of Structural Stability and Dynamics     Hybrid Journal   (4 followers)
International Journal of Sustainable Built Environment     Open Access   (2 followers)
International Journal of Sustainable Construction Engineering and Technology     Open Access   (7 followers)
ISRN Civil Engineering     Open Access   (4 followers)
ISRN Power Engineering     Open Access   (1 follower)
Journal of Accessibility and Design for All     Open Access   (3 followers)
Journal of Applied Fire Science     Full-text available via subscription  
Journal of Bridge Engineering     Full-text available via subscription   (10 followers)
Journal of Building Performance Simulation     Hybrid Journal   (3 followers)
Journal of Civil Engineering and Construction Technology     Open Access   (2 followers)
Journal of Civil Engineering and Management     Hybrid Journal   (4 followers)
Journal of Civil Engineering and Science     Open Access   (8 followers)
Journal of Civil Engineering Research     Open Access   (8 followers)
Journal of Civil Society     Hybrid Journal   (2 followers)
Journal of Civil Structural Health Monitoring     Hybrid Journal  
Journal of Composites     Open Access   (3 followers)
Journal of Composites for Construction     Full-text available via subscription   (7 followers)
Journal of Computing in Civil Engineering     Full-text available via subscription   (16 followers)
Journal of Construction Engineering     Open Access   (3 followers)
Journal of Construction Engineering and Management     Full-text available via subscription   (19 followers)
Journal of Construction Engineering, Technology & Management     Full-text available via subscription   (2 followers)
Journal of Constructional Steel Research     Hybrid Journal   (6 followers)
Journal of Earth Sciences and Geotechnical Engineering     Open Access   (1 follower)
Journal of Fluids and Structures     Hybrid Journal   (1 follower)
Journal of Frontiers in Construction Engineering     Open Access   (1 follower)
Journal of Green Building     Full-text available via subscription   (6 followers)
Journal of Highway and Transportation Research and Development (English Edition)     Full-text available via subscription   (3 followers)
Journal of Infrastructure Systems     Full-text available via subscription   (12 followers)
Journal of Legal Affairs and Dispute Resolution in Engineering and Construction     Full-text available via subscription   (5 followers)

        1 2     

Structural Concrete    [10 followers]  Follow    
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
     ISSN (Print) 1464-4177 - ISSN (Online) 1751-7648
     Published by John Wiley and Sons Homepage  [1594 journals]   [SJR: 0.311]   [H-I: 7]
  • Towards a reliability‐based post‐fire assessment method for
           concrete slabs incorporating information from inspection
    • Authors: Ruben Van Coile; Robby Caspeele, Luc Taerwe
      Pages: n/a - n/a
      Abstract: After a concrete structure has been exposed to fire, a combination of destructive and non‐destructive testing, expert judgment and calculations is used to decide whether the structure should be demolished, can be repaired, or may be used without repair or rehabilitation. However, many uncertainties are associated with both the fire duration and the effect of elevated temperatures on the residual mechanical properties of the materials. Consequently, the maximum service load after fire exposure should be assessed based on reliability considerations in order to provide an adequate level of safety. As this type of calculations is too complex and time‐consuming for normal use by practitioners, a reliability‐based assessment tool has been developed for concrete structures and applied to slabs, which determines the maximum service load after fire. When using the proposed method, a safety level is targeted which is comparable to the safety level associated with the Eurocode format for the design of new structures. It is concluded that the proposed assessment method is both user‐friendly and directly applicable for practitioners.
      PubDate: 2014-01-23T03:12:01.18665-05:0
      DOI: 10.1002/suco.201300084
  • Experimental Investigations on Punching Behaviour of Reinforced Concrete
           Footings with structural dimensions
    • Authors: Carsten Siburg; Josef Hegger
      Pages: n/a - n/a
      Abstract: To evaluate the punching shear behaviour of footings with practical dimensions, punching tests on 13 specimens under uniform soil pressure were conducted. The test series include square footings with and without punching shear reinforcement. The dimensions of the footings varied between 1.20 m and 2.70 m in square and the slab thickness varying between 0.45 m and 0.65 m resulting in shear span‐depth ratios aλ/d between approximately 1.25 and 2.00. In addition to the measured steel strains of the flexural reinforcement and the stirrups, the increase of the slab thickness as well as the saw cuts were examined to investigate the internal cracking and failure characteristic. In combination with previous tests conducted at RWTH University this test series allows to describe the effect of the main parameters on the punching shear strength of footings. These parameters are the size effect of the effective depth, the concrete compressive strength, the flexural reinforcement ratio, and the punching shear reinforcement.
      PubDate: 2014-01-23T03:12:00.047081-05:
      DOI: 10.1002/suco.201300083
  • Biaxial Behavior of Plain Concrete Subjected to Dynamic Compression with
           Constant Lateral Stress
    • Authors: Dongming Yan; Shilang Xu, Genda Chen, Hedong Li
      Pages: n/a - n/a
      Abstract: In this study, the dynamic biaxial behavior of concrete is investigated with testing of over 60 cubic specimens on a custom‐designed, servo‐hydraulic controlled machine. Each specimen was axially loaded in compression at a constant strain rate of 10‐5 sec‐1, 10‐4 sec‐1, 10‐3 sec‐1 or 10‐2 sec‐1 while two opposite side faces were subjected to a constant confining pressure and the other two side faces were free. The confining pressure applied on each specimen was 0, 30.5%, 61.0% or 91.5% of its uniaxial compressive strength. Test results indicated that the biaxial strength of concrete increased with strain rate at a reduced slope as the confining pressure increases. The failure mode of concrete specimens was basically unaffected by strain rate. An empirical relation for the ultimate strength of concrete in biaxial stress state was developed, taking into account the effects of both confinement and strain rate.
      PubDate: 2014-01-23T03:11:58.957677-05:
      DOI: 10.1002/suco.201300057
  • Effect of Welding Heat on Precast Steel Composite Hollow Columns
    • Authors: Deok Hee Won; Woo Sun Park, Jin‐Hak Yi, Sang‐Hun Han, Taek Hee Han
      Pages: n/a - n/a
      Abstract: Steel composite hollow columns are researched for easing construction. Welding or bolting are mostly used for connecting the steel tubes of precast steel composite hollow columns. However, welding generally results in temperatures of about 20,000°C in the welding zone and 1,300°C around the welding zone. Thus, the strength of concrete in the regions close to a welding zone is reduced. In this paper, the effects of arc welding and electro‐slag welding, two widely used welding methods for connecting the column modules of hollow, composite steel composite columns, on the temperature change in the welding zone were studied by performing heat transfer analysis. The changes in the strength of concrete are investigated for each welding method. The rate of decrease in concrete strength due to electro‐slag welding was larger than that due to arc welding. In addition, an effective method is suggested for preventing strength reduction of concrete using ceramic fiber by welding heat.
      PubDate: 2014-01-14T07:30:13.63352-05:0
      DOI: 10.1002/suco.201300060
  • Modeling, verifications and investigation on behaviour of circular CFST
    • Authors: Pramod K. Gupta; Ziyad A. Khaudhair, Ashok K. Ahuja
      Pages: n/a - n/a
      Abstract: In this paper, an effort has been made to provide a detailed procedure for Finite Element modeling and simulation of Concrete Filled Steel Tubular (CFST) columns subjected to axial compression using commercial software package ANSYS 12. Modified material model for modeling the concrete core is reported and explained. Composite action is modeled between concrete core and steel tube and the procedure is presented with the recommended properties for modeling such behaviour. The proposed model is then validated by comparing its numerical results with selected experimental results available in literature. The proposed model is used to investigate numerically the load transfer mechanism of CFST columns filled with different grades of concrete to study the effect of this parameter, i.e. compressive strength of concrete core on the load transferring mechanism in such columns. Further, the proposed model has been employed for investigating the confining pressure provided by steel tube to the concrete core along the length of CFST column.
      PubDate: 2014-01-14T07:30:12.623338-05:
      DOI: 10.1002/suco.201300045
  • Stochastic Fracture‐Mechanical Parameters for the Performance Based
           Design of Concrete Structures
    • Authors: Alfred Strauss; Thomas Zimmermann, David Lehký, Drahomír Novák, Zbynĕk Kers̆ner
      Pages: n/a - n/a
      Abstract: High variability is found in the experimental results for quasi‐brittle materials such as concrete (C) and fibre reinforced concrete (FRC) due to the heterogeneity of their aggregates, additives and general composition. An accurate assessment of the fracture‐mechanical parameters of such materials (e.g. compressive strength fc and specific fracture energy Gf) turns out to be much more difficult and problematic than for other engineering materials. The practical design of quasi‐brittle material‐based structures requires virtual statistical approaches, simulations and probabilistic assessment procedures for the characterization of the variability of these materials. A key parameter of nonlinear fracture mechanics modelling is the specific fracture energy Gf and its variability, which has been a research subject for numerous authors, we will name only at this point. The target of this contribution is the characterization of stochastic fracture‐mechanical properties of four specific frequently used classes of concrete on the basis of a comprehensive experimental testing program.
      PubDate: 2014-01-14T07:30:11.472113-05:
      DOI: 10.1002/suco.201300077
  • Review of possible mineral materials and production techniques for a
           building material on the moon
    • Authors: Sebastian Wilhelm; Manfred Curbach
      Pages: n/a - n/a
      Abstract: The article provides an overview of findings and production processes of various mineral materials which have been developed and tested worldwide in the past with regard to the establishment of a lunar base. At the beginning, the aim and procedure of constructing a lunar base will be outlined briefly. Subsequently, the lunar environment factors and their influence on a possible construction will be described. Then the advantages and disadvantages of examined materials such as sulfur concrete, cast basalt, lunar concrete or polymer concrete, on the one hand, as well as previously investigated production processes like sintering, geothermite reaction and 3D printing, on the other hand, are presented. One promising method is the Dry‐Mix/Steam‐Injection method for producing a lunar concrete as a possible material which is based on cement made from lunar resources developed by T. D. Lin.
      PubDate: 2013-12-17T09:20:16.709418-05:
      DOI: 10.1002/suco.201300088
  • Applications of Non‐contact Senor (IBIS‐S) and Finite Element
           Method in Assessment of Bridge Deck Structures
    • Authors: Amir M. Alani; Morteza Aboutalebi, Gökhan Kiliç
      Pages: n/a - n/a
      Abstract: The main objective of this investigation is to provide an alternative method for damage detection and assessment of bridge structures based on comparisons between Finite Element (FE) modelling/analysis and field data. The field data reported in this paper refers to the application of a non‐destructive structural testing method (IBIS‐S sensor system – displacement/movement detecting sensors with interferometric capabilities) and inspections by visualisation. The developed FE models presented in this study demonstrate certain degrees of reliability in terms of predicting mechanical behaviour of the bridge structure under investigation. The FE models were developed using the ANSYS software package. This investigation also provides a detailed report on application of the field survey that was carried out on a rather heavily used bridge located in Chatham, Kent, UK. The reported field data concerning the IBIS‐S sensors correspond to subjecting the bridge to different static and dynamic loading conditions. The static and dynamic structural responses of the bridge were created by driving a lorry up and down the bridge. Then the same loading conditions were simulated using the developed FE model verifying the sensitivity of the model. This FE model was then used to study the response of the bridge to other loading conditions. It is believed that the proposed method could potentially be utilised in assessing bridge structures within the context of the health monitoring of structures.
      PubDate: 2013-12-17T09:10:26.148088-05:
      DOI: 10.1002/suco.201200020
  • Effect of bond degradation due to corrosion – literature survey
    • Authors: Giuseppe Mancini; Francesco Tondolo
      Pages: n/a - n/a
      Abstract: Bond can play an important role in assessment of existing structures, particularly when corrosion of reinforcement is to be expected. Bond tests results on corroded bars embedded in concrete are not yet fully exhaustive for the definition of bond degradation by effect of corrosion of reinforcement. Structural effects of bond degradation can assume different importance following the resisting mechanism that is activated within the structure. A critical review of the available data is presented; some aspects as the embedment length, corrosion rate and type of test are analyzed.
      PubDate: 2013-12-17T09:10:24.88945-05:0
      DOI: 10.1002/suco.201300009
  • Fatigue Life of RC Beams Strengthened with FRP Systems
    • Authors: Leila Cristina Meneghetti; Mônica Regina Garcez, Luiz Carlos Pinto da Silva Filho, Francisco de Paula Simões Lopes Gastal, Túlio Nogueira Bittencourt
      Pages: n/a - n/a
      Abstract: Fiber Reinforced Polymers have been successfully used in the rehabilitation of concrete structures in the form of externally bonded reinforcement. Although many data has been produced on the performance of strengthened RC structures, the reliability of strengthened structures can be significantly reduced due to the variability in the FRP properties, especially when wet layup technique is used. In addition to this, structural engineers are concerned about the durability of the FRP strengthened structures under extreme loading conditions. Nonetheless, knowledge of the behaviour of strengthened elements under fatigue loading may be important to increase the confidence of the strengthening systems. This paper presents the results of an experimental program developed to investigate the behaviour of RC beams strengthened with high performance carbon and aramid fiber sheets submitted to static and cyclic loadings, regarding ultimate loads, deflections, cracking behaviour, failure modes and fatigue life by means of loading, cracking opening and deflections monitoring, up to failure. Experimental data of fatigue life were used to validate analytical models developed for strengthened and unstrengthened beams.
      PubDate: 2013-12-17T09:10:23.578416-05:
      DOI: 10.1002/suco.201300017
  • Residual modulus of elasticity and maximum compressive strain of HSC and
           FRHSC after high stress level cyclic loading
    • Authors: Miguel A. Vicente Cabrera; Dorys C. González Cabrera, Jesús Mínguez Algarra, José A. Martínez Martínez
      Pages: n/a - n/a
      Abstract: This paper discusses the residual modulus of elasticity and maximum compressive strain of high strength concrete and fiber reinforced high strength concrete after being subjected to axial high stress level cyclic loading. This paper presents a specific procedure to evaluate the residual values of these mechanical parameters of concrete specimens. This procedure reveals that there is not a monotonic decrease of the residual modulus of elasticity with number of cycles. In all cases, an initial decrease occurs. Then, an increase and, finally, another decrease happen. Similarly, there is not a monotonic increase of the residual maximum compressive strain. The results show substantial changes in both the residual modulus of elasticity and the residual maximum compressive strain of concrete depending on the number of cycles. These variations are due to the combined action of two phenomena of concrete: microcracking and reconsolidation of concrete microstructure.
      PubDate: 2013-12-17T09:10:22.249576-05:
      DOI: 10.1002/suco.201300032
  • Validation of post‐tensioning anchorage zones by laboratory testing
           and numerical simulation
    • Authors: Vladimir Cervenka; Hans Rudolf Ganz
      Pages: n/a - n/a
      Abstract: Anchorage zones in post‐tensioned concrete structures offered by construction industry are subject to a certification process, which checks its compliance with codes of practice and safety requirements. This certification is based on load transfer tests of specimens, which represent the real actual structural solutions. Such tests can be supplemented by numerical simulations based on computational mechanics. Such simulations offer a powerful tool for interpretation of test results and contribute to a better understanding of structural behaviour of anchorage zones.
      PubDate: 2013-12-17T09:10:21.074419-05:
      DOI: 10.1002/suco.201300038
  • Effect of old adhered mortar on creep of recycled aggregate concrete
    • Authors: Yuhui Fan; Jianzhuang Xiao, Vivian W.Y. Tam
      Pages: n/a - n/a
      Abstract: This paper first presents an experimental study on shrinkage and creep behavior of recycled aggregate concrete (RAC) with different recycled coarse aggregate (RCA) replacement percentages (i.e. 0%, 33%, 66%, 100%). From the experimental results, it is found that increasing the RCA replacement percentages can increase the shrinkage and creep of RAC. A calculated method of old adhered mortar creep behavior is also proposed by analyzing the influence mechanism of creep and the volume content of old adhered mortar on creep of RAC. It is found that the RAC creep is significantly influence by old adhered mortar properties and its volume contents. Finally, a calculated model of RAC creep is established by considering the influence of mechanical properties and creep behaviors of old adhered mortar. It is proved that this model can calculate the creep of RAC.
      PubDate: 2013-12-17T09:10:19.787848-05:
      DOI: 10.1002/suco.201300055
  • Water Permeability of Concrete under Uniaxial Tension
    • Authors: Yong Yuan; Yang Chi
      Pages: n/a - n/a
      Abstract: Concrete structure would suffer from water permeating under stresses. The paper investigates the surface water permeability of reinforced concrete element subject to uniaxial tension. A testing system is developed to combine conventional loading machine with surface permeameter. To eliminate the effect of initial absorption of water, calibration tests are conducted on plain concrete samples with different surface saturated states. The presented experiment is designed to test the surface water permeability of a structural member under uniaxial tension. Specimens are reinforced centrally with a steel bar at different sizes and are fabricated with normal strength concrete and high‐strength concrete. Uniaxial tensile load is applied from 0.10 to 0.80 of estimated ultimate cracking load in an interval of 0.10. Meanwhile, water permeability is measured correspondingly at each load step. Testing results gives the relationships of water permeability of concrete member with leveled tensile load on it.
      PubDate: 2013-12-17T09:10:18.616851-05:
      DOI: 10.1002/suco.201300059
  • Influence of time‐dependent effects on the crack spacing in
           reinforced concrete beams
    • Authors: Arnaud Castel; Raymond Ian Gilbert
      Pages: n/a - n/a
      Abstract: This paper aims to put in perspective the influence of long term effects such as concrete creep and shrinkage on concrete cracking. Long term experimental results obtained at the Centre for Infrastructure Engineering and Safety (CIES) are reported and compared to design estimates made using the fib MC2010. The influence of factors such as stirrup spacing and concrete cover are discussed. Results show that time‐dependent shrinkage‐induced cracking can modify considerably the cracking patterns from those obtained in short term tests. For crack control in real structures and for the development of models for inclusion in codes of practice, it is recommended strongly that account be taken of time‐dependent effects. Limiting observations to those made in short term tests may lead to erroneous conclusions that are simply not applicable for structures that are more than a few weeks old.
      PubDate: 2013-12-17T09:10:17.655839-05:
      DOI: 10.1002/suco.201300065
  • Splendid concrete architecture in National tourist routes of Norway
    • Authors: Ole H. Krokstrand; Reiulf Ramstad, Carl‐Viggo Hölmebakk
      Pages: n/a - n/a
      Abstract: The Norwegian Public Roads Administration started in 1994 a program named National tourist routes of Norway. It was to include 18 selected routes from South to North. The uniqueness of these attractions lies in the spectacular architecture found at viewpoints, places of interest and visitor centers located amid magnificent scenery. The aim of the tourist routes was to strengthen Norway's position in the marketing of international tourism and to help promote local business. The routes are carefully selected and give you some of the most spectacular scenery in the country. Young Norwegian sculptors, architects and a few renowned foreign ones were challenged to make unique view platforms, service buildings, pedestrian bridges, ramps, benches and stairs to be placed along the different routes. All so unique that you automatically stop as you are driving along, not just to admire the scenery, but also the special objects. Several of these objects are made in concrete. Four of them are presented here.
      PubDate: 2013-12-17T09:10:16.716403-05:
      DOI: 10.1002/suco.201300080
  • Contents: Structural Concrete 4/2013
    • Pages: n/a - n/a
      PubDate: 2013-12-02T05:55:51.727335-05:
      DOI: 10.1002/suco.201390020
  • Cover Picture: Structural Concrete 4/2013
    • Pages: n/a - n/a
      Abstract: The new Europe Bridge (inaugurated in June 2013) is 1791 m long, with 1391 m of that over the river, making it the longest bridge over the Danube. Seven 80 m long and one 52 m long concrete box girder spans make up the crossing to the Bulgarian abutment near Vidin, where the highway runs onto a long embankment. There are also five spans over the navigable part of the river: 124 m + 180 m + 180 m + 180 m + 115 m. The bridge foundations – 2000 mm diameter bored cast in situ concrete piles – extend 80 m into the subsoil. FCC erected the main bridge using glued segmental match‐cast deck girder sections, then cast more than 450 deck units – each weighing up to 250 t – near Vidin. These precast concrete segments were lifted using special equipment manufactured specifically for this project (photo: FCC)
      PubDate: 2013-12-02T05:55:50.566207-05:
      DOI: 10.1002/suco.201390016
  • Structural Concrete 1/2014
    • Pages: n/a - n/a
      Abstract: Joost Walraven: Dismantlement Ali Abbas, Sharifah Syed Mohsin, Demetrios Cotsovos: Nonlinear analysis of staticallyindeterminate SFRC columns Amir Alani, Joseph Rizzuto, Derrick Becket: Structural behavior and deformation patterns in loaded plain concrete ground supported slabs John Cairns: Staggered lap joints of tension reinforcement Johan Magnusson, Hallgren Mikael, Anders Ansell: Shear in Concrete Structures Subjected to Dynamic Loads Jerzy Onysyk, Jan Biliszczuk, Przemyslaw Prabucki, Krzysztof Sadowski, Robert Toczkiewicz: Strengthening of a 100 year old reinforced concrete dome of the Centennial Hall in Wroclaw Emil Sánchez Filho, Osvaldo Souza, Luiz Vaz, Julio Silva Filho: Reliability Analysis of RC Beams Strengthened to Torsion with CFC István Völgyi, Andor Windisch, György Farkas: Resistance of reinforced concrete members with hollow circular crosssection under combined bending and shear – Part I: experimental investigation Jianzhuang Xiao, Long Li, Vivian Tam, Hong Li: The state‐of‐the‐art on long‐term properties of recycled aggregate concrete Xian Liu, Wie Jiang Geert De Schutter, Yong Yuan, Quanke Su: Early‐age Behavior of Precast Concrete Immersed Tunnel Based on Degree of Hydration Concept
      PubDate: 2013-12-02T05:55:49.226645-05:
      DOI: 10.1002/suco.201390019
  • Shear Strengthening of RC T‐Beams with Fully or Partially Bonded FRP
    • Authors: Sevket Ozden; Hilal M. Atalay, Erkan Akpinar, Hakan Erdogan, Yilmaz Zafer Vulas
      Pages: n/a - n/a
      Abstract: A series of ten reinforced concrete T‐beams, designed deficient in shear, were tested in order to investigate the shear performance achieved through externally applied U‐shaped FRP composite strips. Key variables of the study were the type of FRP composite, the type of surface bonding, and the type of strip's end anchorage. Carbon Fiber Reinforced Polymer (CFRP), Glass Fiber Reinforced Polymer (GFRP) and High Modulus of Elasticity Carbon Fiber Reinforced Polymer (Hi‐CFRP) strips were the special composite types with different elastic modules, while full or partially bonding of the strips to the beam surface were the variables named in the type of surface bonding. All partially bonded FRP strips were free of surface bonding while epoxy bonded FRP anchors were used at their ends close to the slab‐to‐beam connection. Those strips with full surface bonding have either epoxy bonded FRP anchors at their ends or the strip ends were free of an anchorage. The test results revealed that the shear deficient beams may well be strengthened by the externally applied FRP strips. However, the level of strength enhancement and the failure pattern is closely influenced by the elastic modulus of composite, surface bonding type and the end anchorage type of the FRP strip itself. The Hi‐CFRP strips yielded an inferior enhancement in contrary to the expectations. The unbonded FRP application, for the shear strengthening, yielded promising results.
      PubDate: 2013-11-19T03:23:18.226341-05:
      DOI: 10.1002/suco.201300031
  • Experimental, analytical and numerical analysis of the pullout behavior of
           steel fibers considering different fiber types, inclinations and concrete
    • Authors: Rolf Breitenbücher; Günther Meschke, Fanbing Song, Yijian Zhan
      Pages: n/a - n/a
      Abstract: The pullout behavior of single steel fibers embedded in a concrete matrix is investigated for various configurations of fiber types and embedment lengths and angles, respectively, by means of laboratory tests and analytical models. Laboratory tests on fiber pullout are performed to investigate the fiber‐matrix bond mechanisms. Parameters influencing the fiber pullout response, such as fiber shape, fiber tensile strength, concrete strength and fiber inclination angle are systematically studied. From the experimental results, the effect of these parameters on the pullout force versus displacement relationship, fiber efficiency and fiber/matrix failure response is analyzed. For the analytical modeling of the fiber pullout behavior of straight fibers, an interface law is proposed for the frictional behavior between the fiber and matrix. In the case of inclined fibers, also the plastic deformation of the fiber and the local damage of concrete are considered. For hook‐ended fibers, the anchorage effect due to the hook is analyzed. By combining these sub‐models, the pullout response of single fibers embedded in a concrete matrix is predicted. In addition, numerical simulations of pullout tests are performed to obtain insight in the local fiber‐concrete interactions and to provide supporting information for the analytical modeling. The models are successfully validated with the experimental results.
      PubDate: 2013-11-06T05:10:16.260466-05:
      DOI: 10.1002/suco.201300058
  • Investigation of bond behaviour between recycled aggregate concrete and
           deformed steel bars
    • Authors: M. John Robert Prince; Bhupinder Singh
      Pages: n/a - n/a
      Abstract: The results of forty‐five pullout tests carried out using 8 mm, 10 mm and 12 mm diameter deformed steel bars concentrically embedded in recycled aggregate concrete designed using equivalent mix proportions with coarse recycled concrete aggregate (RCA) replacement levels of 25%, 50%, 75% and 100% are reported. Although consistent results were not obtained for the 8 mm bars, the normalized bond strengths of the 10 mm and the 12 mm bars across all the RCA replacement levels were higher for the RCA concretes compared to the natural coarse aggregate concrete and they increased with RCA replacement levels. Brittleness index, an analogous parameter from rock mechanics, has been shown to be a relevant predictor of the measured bond strengths. An empirical bond stress‐versus‐slip relationship has been proposed and it has been conservatively suggested that anchorage lengths of the 10 mm and the 12 mm diameter deformed bars in recycled aggregate concrete may be taken the same as in natural aggregate concrete.
      PubDate: 2013-11-06T05:10:15.226375-05:
      DOI: 10.1002/suco.201300042
  • Robustness based performance assessment of a pre‐stressed concrete
    • Authors: Jan Podrouzek; Alfred Strauss, Konrad Bergmeister
      Pages: n/a - n/a
      Abstract: The life‐cycle civil engineering addresses among others the growing number of deteriorating bridges and the associated economic challenges. In consequence, Government bodies, infrastructure and bridge owners as well as the industry request objective and rational performance indicators for classification and intervention planning in structural engineering. This paper focuses on a methodology for analyzing the damage‐based robustness margins of bridge systems under traffic loading. In particular, a series of emergent deterioration‐based damage scenarios are compared to the actual or virgin state in terms of load bearing capacity and serviceability. Non‐linear finite element analysis based on a detailed 3‐D model has a high potential for capturing the available bridge capacity at different degradation phenomena and levels, serving as an input for further reliability‐based performance indicators. Notwithstanding, costs associated with fully probabilistic assessment measures are still prohibitive despite the technological advancement and new methods of reducing the sample size in Monte Carlo computations. In addition, considering the large uncertainties and imprecisions involved, it is imperative that probabilistic schemes are considered over deterministic assessment. The objective of this article is to present strategies for robustness based performance assessment using nonlinear modeling and to discuss relevant reliability‐based quantities and performance indicators in relation to structural damage, at the example of specific degradation events in an existing prestressed box‐girder bridge. Furthermore some strategies are developed on the basis of the novel approach for general complex engineering structures.
      PubDate: 2013-11-06T05:10:13.641115-05:
      DOI: 10.1002/suco.201300002
  • fib Model Code 2010 – Chapter 9: Conservation of concrete structures
    • Authors: Stuart Matthews; Agnieszka Bigaj‐van Vliet, Tamon Ueda
      Pages: n/a - n/a
      Abstract: Conservation of concrete structures forms an essential part of fib Model Code 2010 (fib MC2010). In particular, Chapter 9 of the fib MC2010 addresses issues concerning conservation strategies and tactics, conservation management, condition survey, condition assessment, condition evaluation and decision‐making, making interventions and the recording of information for through‐life management. Chapter 9 incorporates the overall philosophy adopted in the development of the fib MC2010, which introduces a new integrated life cycle perspective upon the design of concrete structures. Accordingly, Chapter 9 provides a response to concepts introduced earlier within the fib MC2010 relating to the service life design process, which requires the structure and its component parts to be allocated to a condition control category at the time of design. Different condition control categories are defined depending on factors such as the importance of the structure, its function, design service life, impact on third parties, environmental conditions, ease of maintenance and cost. Linked to these requirements, the condition control levels and inspection regimes are defined. A through‐life management process outlined in Chapter 9 provides feedback to the service life design and allows updating of the associated theoretical model employed, facilitating assessment of compliance with the original design objectives. An application example of concrete structure conservation according to fib MC2010 concept is presented.
      PubDate: 2013-08-15T05:11:52.79588-05:0
      DOI: 10.1002/suco.201300046
  • Restoring force model of SRC columns with high steel ratio
    • Authors: Xilin Lu; Xiaowei Yin, Huanjun Jiang
      Pages: n/a - n/a
      Abstract: Based on the experimental results in references, key points of the load‐displacement skeleton curves of SRC cantilever columns are established. Influencing parameters such as the ratio of encased steel, the transverse reinforcement characteristic value, the size of the cross‐section, etc., are considered in the study. A degrading tri‐linear restoring force model applicable to SRC columns with encased steel ratio between 10%‐20% is suggested. The main results show that the influencing parameters have different effects on the values of key points. The proposed restoring force model considering various influencing parameters can predict the test results closer, and can be applicable to nonlinear dynamic analysis of structures with such kinds of SRC columns.
      PubDate: 2013-06-11T06:10:34.628437-05:
      DOI: 10.1002/suco.201200056
  • A physical approach for considering the anchorage head size influence in
           the punching capacity of slabs strengthened with vertical steel bolts
    • Authors: Ricardo Silva; Duarte M. Viúla Faria, A. Pinho Ramos, Micael Inácio
      Pages: n/a - n/a
      Abstract: The introduction of new vertical steel bolts is an easy, practical and common solution for retrofitting and strengthening of slabs to punching. Although being a common option when punching strengthening is concerned, few studies exist regarding the effect of the bolts anchorage dimensions and its embedment on the concrete slabs on the strengthening efficiency. This work presents an analytical approach able to predict the punching capacity of slabs strengthened with the introduction of post‐installed vertical steel bolts, taking into account the anchorage dimensions and positioning, along with material properties. This approach results from the combination of two physical models: one provided in MC2010 regarding the punching capacity estimation; and another that allows taking into account the deformation (crushing) of the concrete underneath the head of the anchorage. The predicted values are compared with experimental results, showing that the analytical approach is able to correctly simulate the anchorage behaviour and its influence regarding the slab load capacity. A parametrical analysis is carried out in order to study the importance of different factors such as: the concrete compressive strength, longitudinal reinforcement ratio, steel bolt length, always accompanied by the effect of the anchorage head size and embedment.
      PubDate: 2013-06-11T06:10:24.239414-05:
      DOI: 10.1002/suco.201200051
  • Fibre Reinforced Polymer Reinforcement Enters MC2010
    • Authors: Thanasis Triantafillou; Stijn Matthys
      Pages: n/a - n/a
      Abstract: Most applications of fibre‐reinforced polymers (FRP) deal with externally bonded reinforcement as a means to repair and strengthen reinforced concrete (RC) structures or to retrofit RC structures in seismic regions. As internal reinforcement, FRP rebars or (more rarely) prestressing elements, are used in special projects, combining material strength and durability characteristics. Over the last years several national and international design guidelines have become available, specifically for the design and application of FRP strengthened or reinforced concrete structures. These efforts demonstrate clearly the interest in FRP as a novel reinforcing material for concrete construction. Hence, the time was there to introduce FRP reinforcement also in the new Model Code 2010 (MC2010). Main contributions to MC2010 relate to chapters 5.5 “Non‐metallic reinforcement” and 6.2 “Bond of non‐metallic reinforcement”. The material presented in these two chapters is further elaborated in this contribution.
      PubDate: 2013-05-28T01:30:24.680267-05:
      DOI: 10.1002/suco.201300016
  • Sustainable structural concrete – from today's approach to future
    • Authors: Harald S. Müller
      Pages: 299 - 300
      PubDate: 2013-12-02T05:55:51.799356-05:
      DOI: 10.1002/suco.201390021
  • Sustainability in fib Model Code 2010 and its future perspective
    • Authors: Koji Sakai
      Pages: 301 - 308
      Abstract: Considering the depletion of resources and energy and the risks of climate change on a global scale, a thoughtless increase in the use of resources and energy in the construction sector is obviously unacceptable. The sector has until now constructed a system of technology focused on safety and comfort, with priority given to economic and social benefits. Such demands remain extremely important; however, in the future we ought to give additional consideration to the depletion of resources, energy consumption and other, ensuing environmental issues. This means that the sector needs to incorporate sustainability – including the environmental, economic and social aspects – into its systems of design and technology. The fib decided to incorporate a “concrete sustainability” concept in its new fib Model Code for Concrete Structures 2010. This paper explains sustainability as expressed in this code together with the background to it. In addition, the essence of sustainability with respect to future Model Codes is discussed.
      PubDate: 2013-12-02T05:55:52.457128-05:
      DOI: 10.1002/suco.201300012
  • Reliability in the performance‐based concept of fib Model Code 2010
    • Authors: Agnieszka Bigaj‐van Vliet; Ton Vrouwenvelder
      Pages: 309 - 319
      Abstract: The design philosophy of the new fib Model Code for Concrete Structures 2010 represents the state of the art with regard to performance‐based approach to the design and assessment of concrete structures. Given the random nature of quantities determining structural behaviour, the assessment of structural performance cannot be well established by deterministic methods, instead requires a probabilistic approach. The performance‐based approach is introduced in Part I of fib Model Code 2010 by applying the concept of performance requirements and reliability management during service life. Correct understanding of the reliability concept of fib Model Code 2010 is a basic prerequisite for applying its design philosophy in an appropriate manner. Therefore, the main objective of this paper is to explain some decidedly non‐trivial issues related to safety and reliability management aspects. In this context, this paper indicates how this general philosophy in fib Model Code 2010 is further developed into a set of operational rules for the design and assessment of concrete structures.
      PubDate: 2013-12-02T05:55:52.175229-05:
      DOI: 10.1002/suco.201300053
  • Concrete: treatment of types and properties in fib Model Code 2010
    • Authors: Harald S. Müller; Isabel Anders, Raphael Breiner, Michael Vogel
      Pages: 320 - 334
      Abstract: Section 5.1 “Concrete” of the fib Model Code for Concrete Structures 2010 contains basic definitions and well‐established constitutive relations for structural concrete. However, it also presents various new approaches and updated models compared with the earlier CEB‐FIP Model Code 1990. This is particularly true for the strength, stress and strain characteristics of structural concrete, for creep and shrinkage and for sophisticated durability‐related processes. The validity of the models has been extended to several types of concrete such as high strength concrete, self‐compacting concrete and lightweight aggregate concrete. The durability‐related models are either suitable for facilitating a full probabilistic service life design or for applying simpler code‐type approaches. This article provides a concise and selective overview of some of those models. Background information is summarized and there is a focus on improvements achieved by the updated models. In addition, some simple design aids are given to allow pre‐design, for example
      PubDate: 2013-12-02T05:55:49.2866-05:00
      DOI: 10.1002/suco.201200048
  • Fibre‐reinforced concrete in fib Model Code 2010: principles, models
           and test validation
    • Authors: Marco di Prisco; Matteo Colombo, Daniele Dozio
      Pages: 342 - 361
      Abstract: In the fib Model Code for Concrete Structures 2010, fibre‐reinforced concrete (FRC) is recognized as a new material for structures. This introduction will favour forthcoming structural applications because the need of adopting new design concepts and the lack of international building codes have significantly limited its use up to now. In the code, considerable effort has been devoted to introducing a material classification to standardize performance‐based production and stimulate an open market for every kind of fibre, favouring the rise of a new technological player: the composite producer. Starting from standard classification, the simple constitutive models introduced allow the designer to identify effective constitutive laws for design, trying to take into account the major contribution in terms of performance and providing good orientation for structural uses. Basic new concepts such as structural characteristic length and new factors related to fibre distribution and structural redistribution benefits are taken into account. A few examples of structural design starting from the constitutive laws identified are briefly shown. FRC can be regarded as a special concrete characterized by a certain toughness after cracking. For this reason, the most important constitutive law introduced is the stress‐crack opening response in uniaxial tension. A wide discussion of the constitutive models introduced to describe this behaviour, which controls all the main contributions of fibres for a prevailing mode I crack propagation, is proposed. The validity of the models is discussed with reference to ordinary cross‐sections as well as thin‐walled elements by adopting plane section or finite element models.
      PubDate: 2013-12-02T05:55:49.693561-05:
      DOI: 10.1002/suco.201300021
  • 3D numerical modelling of concrete structural element reinforced with
           ribbed flat steel rebars
    • Authors: Thanh Song Phan; Jean‐Louis Tailhan, Pierre Rossi
      Pages: 378 - 388
      Abstract: Construction company MATIERE has developed a new type of reinforcement based on ribbed flat steel in recent years. The objective of the present work is to obtain information about the bending behaviour of RC structural elements reinforced with these ribbed flat steel bars and also about the cracking process they induce (number of cracks and crack opening), especially at the serviceability limit state. The structural element chosen for this work is a small slab‐beam (330 × 15 × 80 cm) subjected to three‐point central bending. Concurrent with this experimental study, a 3D finite element model was developed at IFSTTAR to consolidate the experimental results. It appears that the numerical modelling strategy chosen in this work is relevant for analysing both the bending behaviour of an RC structural element and its cracking process.
      PubDate: 2013-12-02T05:55:51.554403-05:
      DOI: 10.1002/suco.201200053
  • The influence of aggregate fracture on the shear strength of reinforced
           concrete beams: an experimental and analytical research project
    • Authors: Juan Sagaseta
      Pages: 401 - 414
      Abstract: High‐performance concretes such as high‐strength concrete (HSC) or lightweight aggregate concrete (LWAC) are generally used to reduce member sizes and self‐weight, and to optimize the construction of reinforced concrete structures. The bond between the aggregate particles and the cement paste can be strong enough in HSC and LWAC to cause the aggregate to fracture at cracks, which in turn reduces the shear stress that can be transferred across cracks by means of aggregate interlock. Relatively smooth cracks can also develop in self‐compacting concrete due to the low coarse aggregate content. The contribution of aggregate interlock to the shear strength of RC beams is uncertain and depends on parameters such as the amount of shear reinforcement or the contribution of arching action for loads applied close to the support. Existing tests on slender RC beams without shear reinforcement have shown that shear strength is reduced by aggregate fracture. However, there is a lack of similar test data for members with stirrups and for members with varying shear span/effective depth ratios. This paper reviews the findings and contributions in this area from the experimental and analytical research of the author's PhD thesis, which was awarded the fib Achievement Award for Young Engineers in 2011.
      PubDate: 2013-12-02T05:55:50.904032-05:
      DOI: 10.1002/suco.201200015
  • 2013 reviewers
    • Pages: 423 - 423
      Abstract: A list of referees who have reviewed papers for Structural Concrete in 2013. Ernst & Sohn and fib are very grateful for their assistance.
      PubDate: 2013-12-02T05:55:52.115835-05:
      DOI: 10.1002/suco.201390017
  • fib‐news: Structural Concrete 4/2013
    • Pages: 424 - 433
      Abstract: Results of the 2014 fib Awards for Outstanding Concrete Structures competition Fourth International fib Congress and Exhibition, Mumbai, India Recent fib‐supported events in Asia Model Code 2010 courses in Argentina and Austria Report from the fib UK Member Group 3rd International Workshop on Concrete Spalling Marseille, a UHPFRC world capital fib Bulletins A.S.G. Bruggeling's 90th birthday Ralejs Tepfers' 80th birthday Peter Schiessl's 70th birthday Steen Rostam's 70th birthday MC2010 book Congresses and symposia
      PubDate: 2013-12-02T05:55:51.869672-05:
      DOI: 10.1002/suco.201390018
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Tel: +00 44 (0)131 4513762
Fax: +00 44 (0)131 4513327
About JournalTOCs
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-2014