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  Subjects -> ARCHITECTURE (Total: 219 journals)
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Jurnal Teknik Sipil dan Perencanaan
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 1411-1772 - ISSN (Online) 2503-1899
Published by Universitas Negeri Semarang Homepage  [79 journals]
  • The Economic Impact of the Road Infrastructure Utilization and the
           Consumption of Electrical Energy in the Kedungsepur Urban Area

    • Authors: Widjonarko Widjonarko, Auliya Ul Fikri
      Pages: 107 - 116
      Abstract: Kedungsepur is a national urban area located in the northern region of Java Island, comprising of six autonomous regions: Semarang City as the principal urban center, along with Kendal Regency, Semarang Regency, Salatiga City, Grobogan Regency, and Demak Regency as supporting areas. Kedungsepur holds significant economic importance in Central Java, contributing approximately 24% to the total Gross Regional Domestic Product (GRDP) over the past two decades. To strengthen Kedungsepur 's role in the regional economy, the government has invested in infrastructure, aiming to bolster the overall economy in Central Java, particularly in the northern region. Therefore, it is important to assess the economic impact of providing infrastructure in the Kedungsepur area to determine the extent to which infrastructure contributes to the regional economy. To measure the economic impact of infrastructure in Kedungsepur, this research uses a regression model with panel data and uses GRDP data as the dependent variable, and infrastructure utilization, especially road utilization and electricity consumption as independent variables. To ensure that regional economic growth in Kedungsepur is influenced by the existence of infrastructure, this research also uses household consumption data as a control variable. The research results show that regional economic growth in Kedungsepur is not only influenced by infrastructure utilization, but also household consumption. Among these, road usage emerges as the primary contributor to the economic growth of the Kedungsepur region, surpassing the impact of electricity consumption and household spending
      PubDate: 2023-10-31
      DOI: 10.15294/jtsp.v25i2.42617
      Issue No: Vol. 25, No. 2 (2023)
       
  • The Study of The Impact of Onshore Harbor Layout on Coastal Sedimentation
           and Erosion at Pekalongan Beach

    • Authors: Zihad Al Fattah, Sri Sangkawati, Suharyanto Suharyanto
      Pages: 117 - 127
      Abstract: Pekalongan City is an area that frequently experiences floods. In response, the government has launched a flood management program for the Pekalongan area, which includes the relocation of the National Fishery Harbor Pekalongan. The construction of the Pekalongan Onshore Harbor will change marine hydrodynamics, current, waves and sediments. To address these issues, it is necessary to conduct a study of these changes. According to the modeling results, the maximum current speed in the harbor pool ranges from 0 to 0.28 m/s, while the maximum wave height in the harbor pool falls within the range of 0 to 0.40 meters. The bed level change at the end of modeling in the harbor pool is 0.108 mm. Notably,  the construction of the Pekalongan Onshore Harbor, as per the planned layout, induces hydrodynamic changes. An indicator of a hydrodynamics change is the alteration in currents at T4 and T5 in each model. In the proposed harbor layout, T4 and T5 exhibit a decrease in current speed, while the wave height remains relatively consistent. This change reduces erosion at T5 and even leads to sedimentation at T4 within the planned harbor layout. 
      PubDate: 2023-10-31
      DOI: 10.15294/jtsp.v25i2.43050
      Issue No: Vol. 25, No. 2 (2023)
       
  • Project Cost Estimation Using a Stepwise Approach: a Case Study of an
           Infrastructure Project in Gresik Regency, East Java

    • Authors: Siswoyo Siswoyo, Soepriyono Soepriyono, Akbar Bayu Kresno Suharso, Nia Saurina, Lestari Retnawati
      Pages: 128 - 137
      Abstract: There are many studies related to cost estimation applied in a project, but only a few employ using “stepwise” method. This approach is expected to assist in solving complex problems by establishing a criteria hierarchy, subjectively assessed by interested parties, and incorporating various considerations to develop weights or priorities. The foundation of the stepwise approach relies on well-documented findings, which assert that 80% of the total project cost corresponds to the 20% most expensive components of the work. The research systematically collected data for project development estimates based on the bill of quantities from each year, as well as the HSPK (activity main unit price) in Gresik Regency from 2016 to 2018.  This research aims to develop a conceptualized estimation model that provides clear, rapid, and relatively accurate initial project cost information. The results of this research include analysis of stepwise approach on cost realization, analysis of accuracy of the cost estimation model for buildings using the stepwise method, and an analysis of the cost of road and bridge infrastructure projects to facilitate completion in Gresik Regency. The research concludes that the analysis of the Cost Significant Model's impact on cost realization in the Public Works and Spatial Office's Highways Division in Gresik Regency has resulted in a cost estimation model for road development with an accuracy range from -12.7% to 16.0%, with an average accuracy rate of 0.59%. Additionally, there is a very strong correlation (R) of the independent variable (work in Division 2) and the total development cost, indicating that fluctuations in the cost of significant components are closely linked to changes in the overall development cost. The analysis of infrastructure project costs related to roads and bridges for project completion revealed that the highest value among independent variables is associated with Division 7, at Rp. 4,403,054 per m2. This suggests that the cost of Division 7 work is the most influential, while Division 1 (X1) has the lowest cost, at Rp. 35,589 per m2. Furthermore, there is a work component with zero cost, namely, Division 4 works.  
      PubDate: 2023-10-31
      DOI: 10.15294/jtsp.v25i2.43080
      Issue No: Vol. 25, No. 2 (2023)
       
  • Evaluation of Green Material Selection at PGSD Laboratory Building
           Universitas Samudra

    • Authors: Hilda Lestari, Eka Mutia, Nova Purnama Lisa
      Pages: 138 - 152
      Abstract: In today's modern era, infrastructure development should take into account environmental considerations, such as the use of green materials and eco-labeling. This approach is vital for ensuring the long-term well-being of humanity and preventing further increases in global warming caused by construction practices that disregard safe and environmentally friendly materials. This study is focused on evaluating the selection of green materials in the PGSD Laboratory at Universitas Samudra. The assessment is based on the standards set by the Green Building Council Indonesia (GBCI) for Material Sources and Cycles. Data collection involved interviews with the technical team responsible for construction, on-site observations to assess material usage, and a review of various building documentation files. The interviews revealed that the PGSD Laboratory at Universitas Samudra was designed with a 'green campus' or 'green building' concept, emphasizing the use of environmentally friendly materials. Analysis of the materials used in both the structural and architectural aspects of the PGSD Laboratory found that it met 8 out of 10 green building requirements, achieving an overall percentage of 80% in accordance with the Material Sources and Cycle assessment for Greenship GBCI. The use of such materials has had a positive impact, contributing to energy conservation, the preservation of natural resources, environmental health, user comfort, and waste reduction.
      PubDate: 2023-10-31
      DOI: 10.15294/jtsp.v25i2.43948
      Issue No: Vol. 25, No. 2 (2023)
       
  • Repetitive Construction Scheduling for Solo-Yogyakarta-NYIA Kulon Progo
           Toll Road Overpass using Line of Balance

    • Authors: Agung Budiwirawan, Edwin Firgyan Raharja, Muhammad Faizal Ardhiansyah Arifin
      Pages: 153 - 160
      Abstract: Repetitive construction requires continuous and uninterrupted supply of resources; hence, a suitable scheduling method that matches the work characteristics is required. Line of Balance is a scheduling method in the form of a line chart that represents recurring work. Considering the existing work items, Ngasem Overpass Bridge Solo-Yogyakarta-NYIA Kulon Progo Toll Road Project can be categorized as a repetitive construction project. Therefore, this research tries to apply LoB to this overpass project to determine whether LoB can efficiently manage a repetitive construction project. Two scheduling scenarios are applied in this study. The first scenario is implemented with the aim of producing a schedule that uses resources continuously and uninterruptedly. While the second scenario is applied to produce a schedule with the shortest duration. LoB based on the first scenario succeeded in compiling a schedule that uses resources continuously and uninterruptedly. Schedule based on the second scenario results in the shortest duration by severing the use of resources for short-duration jobs that are preceded and followed by longer-duration jobs. In addition to generating schedules according to the desired scenario, LoB has proved its ease in managing scheduling in terms of the continuity of resource use and the speed of completion of work.
      PubDate: 2023-10-31
      DOI: 10.15294/jtsp.v25i2.44489
      Issue No: Vol. 25, No. 2 (2023)
       
  • Understanding Airport Leakage at Multi Airport in West Java through
           Accessibility Characteristics to the Airport

    • Authors: Heru Purboyo Hidayat Putro, Rizka Fitria Trinanda, Achmad Fauzan Iscahyono
      Pages: 161 - 169
      Abstract: Airport development must pay attention to the catchment area of the surrounding airport so that there is no overlap, which leads to airport leakage problems. Airport leakage is a phenomenon where passengers avoid local airports in their area of residence and choose airports outside their territory. The scope of study in this research is West Java Multi-airport, which consists of Kertajati Airport and Husein Sastranegara Airport, as well as Soekarno-Hatta Airport and Halim Perdanakusuma Airport as airports around West Java. The purpose of this study was to determine whether the phenomenon of airport leakage occurred at the Multi-airport of West Java Province. The study findings concluded that the addition of Kertajati Airport in West Java Province improved air connectivity in terms of flight routes but was not accompanied by an increase in the number of passengers. This phenomenon can be attributed to airport leakage, whereby passengers in West Java tend to favor Soekarno-Hatta Airport and Halim Perdana Kusuma Airport. These airports provide more flight options, offering greater time flexibility and enhanced accessibility.
      PubDate: 2023-10-31
      DOI: 10.15294/jtsp.v25i2.44661
      Issue No: Vol. 25, No. 2 (2023)
       
  • The Analysis of the Anticoagulant's Influence and Its Concentration on
           Clay Shale Dispersion in Hydrometer Testing

    • Authors: Bambang Pardoyo, Sri Prabandiyani Retno Wardani, Undayani Cita Sari, Tanur Widodo, Rafiando Rafiando
      Pages: 170 - 179
      Abstract: Clay shale is a material that has the characteristic of being easily weathered if it is continuously exposed to the air. Based on this reason, further testing is needed for clay shale material to analyze the material characteristics, one of which is using a hydrometer test. In the hydrometer test, an anticoagulant breaks down the particles. Still, when the test was carried out by various laboratories with different types of samples, it would produce varying test results. This study aims to determine the effect of anticoagulant substances and their concentration on clay shale dispersion in the hydrometer test. The material used was clay shale from the Meteseh, Tembalang District, Semarang. This research method used was a hydrometer test based on British Standard 1377 Part 2 1990 and ASTM D7928-17 using seven anticoagulant agents. The results of the study using the British Standard 1377 Part 2 method showed that sodium polyphosphate, sodium pyrophosphate, and sodium hexametaphosphate were most influential in dispersing clay shale particles, which were characterized by a higher passing percentage of 0.042 mm and 0.002 mm when compared to other anticoagulants. Meanwhile, Calgon, sodium carbonate, sodium tripolyphosphate, and sodium silicate did not significantly affect the clay shale dispersion, indicated by the percentage that passed the sieve, which was not very high. Based on the British Standard 1377 Part 2 1990 and ASTM D7928-17 methods, the most optimum concentration in dispersing clay shale for sodium polyphosphate and sodium pyrophosphate is 5%, while for sodium hexametaphosphate is 6%.
      PubDate: 2023-10-31
      DOI: 10.15294/jtsp.v25i2.44673
      Issue No: Vol. 25, No. 2 (2023)
       
  • Slope Reinforcement Design for Balikpapan-Samarinda Toll Road Landslide
           Section 28+000 To 28+100.

    • Authors: Siti Nurlita Fitri, Marbono Widya Diputra
      Pages: 180 - 189
      Abstract: The Balikpapan - Samarinda Toll Road is a new infrastructure project that connects two capital cities in East Borneo. Landslides occur in sections 28+000 to 28+100, necessitating the terrace design to prevent unstable conditions. As a result, a new proposed design is required to ensure safety in this area. This study aims to offer further slope reinforcement in this location to prevent landslides. This research utilizes secondary data from Standard Penetration Test (SPT) results to determine the soil properties. First, the lateral earth pressure was conducted to calculate the sheet pile and retaining wall structure. The other reinforcement is geogrid with geotextile combine. The Finite element model carried out all the overall stability with Plaxis calculation. The results show that all new proposed to generate the safety factor value >1.3. Sheet pile variations present the CCSP type W-600 with a total length reaching 17m, which offers a safety factor 1.31. The second variation is a retaining wall with a full height of 5m and combined in sheet pile design, which reaches the safety factor in the overall stability of 1.498. the internal strength of the retaining wall is divided into three categories: overturning, sliding, and bearing capacity with 1.55, 2.44, and 2.88, respectively. Meanwhile, the geogrid type described the SF 1.32 with three step slope design and spacing of 0.3m, 0,5m, and 1,0m, respectively. 
      PubDate: 2023-10-31
      DOI: 10.15294/jtsp.v25i2.46383
      Issue No: Vol. 25, No. 2 (2023)
       
  • Experimental Study on The Capacity Of Z-Brace and X-Brace Cold-Formed
           Steel Wall Panel

    • Authors: Khristia Ningsih Cantikawati, Nindyawati Nindyawati, Roro Sulaksitaningrum
      Pages: 190 - 198
      Abstract: Awaludin et al. created an anti-earthquake temporary shelter called RISBARI (Rumah Instan Baja Ringan/Light Steel Instant House), featuring an X-shaped strap-braced wall system using cold-formed steel as its primary structure. A similar temporary shelter (hunian sementara/huntara) was developed by Biru Bumi Hijau using Z-shaped wall bracing. While experimental research on the lateral strength of cold-formed steel wall panels with X-brace bracing, such as in RISBARI, has been conducted extensively, there has been limited in-depth study on Biru Bumi Hijau's huntara. Hence, this research aimed to identify the load capacity, stiffness, and ductility of both bracing configurations on lateral strength using cold-formed steel wall panels. This study used an experimental method through the monotonic static load in the laboratory. The test results were analyzed with One-way ANOVA. The load capacity, stiffness, and ductility of the X-brace panel increased by 201%, 4452%, and 105%, respectively. In contrast, the load capacity, stiffness, and ductility of the Z-brace panel increased by 201%, 4253%, and 156%. The bracing capacity on both was not directly proportional since both test objects had different configuration structures, although they had equalized length and width.
      PubDate: 2023-10-31
      DOI: 10.15294/jtsp.v25i2.46357
      Issue No: Vol. 25, No. 2 (2023)
       
  • Identification of Potential Land Locations for Green Open Space in Cirebon
           City Center (Case study: Pekalipan, Kesambi, and Kejaksan Districts)

    • Authors: Muhammad Satar, Mohamad Rizalby Yosliansyah, Nurrhisma Yuniar
      Pages: 209 - 210
      Abstract: Society cannot ignore the rapid growth of Cirebon city, as evidenced by the population growth rate, which has increased by 2.91% per year compared to the surrounding area. This growth is expected to lead to an increase in built-up land and a reduction in green open spaces in Cirebon City, amounting to approximately 10.5%. This decline green space can increase urban temperatures, especially in Cirebon City. This study focuses on identifying potential locations for green open space from the macro scale of Cirebon City to the microscale in the city center. The analysis reveals a rise in temperature in the city center, with temperatures generally decreasing from the center to the periphery. Surface temperatures have shown an increase from 2015 to 2021, rising from 30.64°C in 2015 to 32.65°C in 2021. The main objective of this study is to identify potential green open space locations in Cirebon City Center. This research employs a quantitative, descriptive, and spatial approach, involving data collection through field observations and literature studies. The research methodology includes the utilization of remote sensing technology to process Landsat 8 images, which aids in the identification of potential green open space locations. The study results indicate that there is an area of 8.02 hectares, or 1.16%, that aligns with the Regional Detail Spatial Plan (RDTR) but necessitates efforts to enhance the quality of green open spaces through methods such as design, management, and community participation. Additionally, there is an area covering 681.42 hectares, not covered by the RDTR, which is a priority for greening through the implementation of green infrastructure. 
      PubDate: 2023-10-31
      DOI: 10.15294/jtsp.v25i2.47047
      Issue No: Vol. 25, No. 2 (2023)
       
  • Comparison of Field Ultimate Capacity (Static and Dynamic Load Test) with
           the Analytic Design of Bored Pile in Granular Soil, Batam, Indonesia

    • Authors: Rizki Kurniadhi, Hary Christady Hardiyatmo, Fikri Faris
      Pages: 211 - 217
      Abstract: A bored pile provides a large capacity obtained to toe and friction pile to support some loads such as axial, lateral, and tensile due to hydrostatic pressure or overturning moment. Static and dynamic load tests are often carried out to validate pile design before pile production in a project. This study aims to compare the ultimate capacity of the pile based on the result of static load test, dynamic load test, and pile design in granular soil of Batam, Indonesia, in which Chin-Kondner, Mazurkiewicz, Davisson, and Hansen 80% methods are utilized to obtain ultimate capacity (Qu) of static load test and dynamic test analysis apply Case Pile Wave Analysis Program (CAPWAP) method to gain ultimate capacity. The result analysis of the static load test of ultimate capacity using Chin-Kondner, Mazurkiewicz, Davisson, and Hansen 80% methods obtained results of 1379, 1300, 1375, and 1182 tons, respectively, with a Qu average of 1309 tons. A bearing capacity (RMX) of 1204 tons was obtained through a dynamic load test. Using the CAPWAP method based on the dynamic test, the ultimate bearing capacity (Ru) of 1248 tons was obtained. Analysis of pile design shows that the ultimate capacity of the bored pile in the granular soil of Batam, Indonesia, was 1157 tons. The Qu examination between field loading testing (1278.5 tons) and design pile foundation (1158 tons) was 9.4%.
      PubDate: 2023-10-31
      DOI: 10.15294/jtsp.v25i2.45485
      Issue No: Vol. 25, No. 2 (2023)
       
 
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