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Jurnal Teknik Sipil dan Perencanaan
Published by Universitas Negeri Semarang
ISSN : -     EISSN : 25031899     DOI : https://doi.org/10.15294/jtsp
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Jurnal Teknik Sipil dan Perencanaan (JTSP) is a scientific journal which biannualy published in April and October. We firstly published in 1999 as national journal of Department of Civil Engineering, Faculty of Engineering, Universitas Negeri Semarang. In 2016, JTSP was indexed in DOAJ with Green Tick critera. And in 2018, JTSP expands its range of article quality and publication through publishing English-language articles.
Arjuna Subject : -
Articles 774 Documents
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Rawapening Lake Buffer Zone Management Kalmah, Kalmah; Larasati, Endang; Purnaweni, Hartuti; Kismartini, Kismartini
Jurnal Teknik Sipil dan Perencanaan Vol 24, No 2 (2022)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v24i2.36213

Abstract

Abstract. Rawapening Lake is located in Semarang District, Central Java. The decreasing of Rawapening lake function due to its many problems caused by environmental degradation which has happened for almost three decades.  Buffer zone determination is a very important basic action to safe Rawapening Lake. This research is to determine Rawapening lake buffer zone and its management. Hydraulic, topographic analysis was conducted within the research along with identification of buffer zone condition. A clear buffer zone area act as boundary for Rawapening lake utilization to support the sustainability of its function in the future.  
Assessment of Frequency on Railway Sleeper by Field Measurements and Static Analysis Kusumawardani, Rini; Kusbiantoro, Arief; Ermansyah, Naufal Maulana; Andiyarto, Hanggoro Tri Cahyo
Jurnal Teknik Sipil dan Perencanaan Vol 24, No 2 (2022)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v24i2.43253

Abstract

The train is a mode of mass transportation that is fast, efficient, and relatively affordable. To support the high demand for this mode of transportation, adequate infrastructure is also needed. The condition of this infrastructure must always be monitored so that the level of security and safety of rail transportation modes can always be in optimal conditions. One important component that requires regular attention and maintenance is the railway sleepers. In this paper, a finite element (FE) model was made of railway sleepers using ANSYS software. From the analysis on the FE model, it can be explored that the deformation and stress that occurs in the railway due to loading. In this study, vibration tests were also carried out on railway based on several types of passing trains. It aims to determine the frequency value based on the type of passing train. This research is the initial stage of a series of studies on structural health monitoring procedures on railroads.
Effects of EPS Beads on the Unconfined Compressive Strength and Stiffness of Bentonite Soil-Cement Mixture Lim, Aswin; Pratama, Ignatius Tommy; Verguson, Yoghi Jo
Jurnal Teknik Sipil dan Perencanaan Vol 25, No 1 (2023)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v25i1.38056

Abstract

Expanded Polystyrene Beads (EPS Beads) have characteristics that are lightweight and low density. However, EPS is waste that does not pollute the soil, but has hundreds of years to decompose, thereby reducing the landfill area. Therefore, alternative disposal is to use EPS for soil improvement. The effects of different EPS beads size on the mechanical behavior of bentonite soil-cement mixture were studied using the unconfined compression test. The curing time of the mixture also varied from 7 to 28 days. The results indicate that adding EPS beads to the soil-EPS beads-cement mixture changed the behavior of the material to be more ductile. The samples could also support larger stresses at a lower strain level, less than 1 %. Furthermore, the unconfined compressive strength of the mixture of bentonite, EPS, and cement increased with increasing curing time and decreased with increasing EPS beads size. Then, adding EPS beads to the soil-cement mixture regardless of its size also promoted a larger stiffness of the samples compared to the sample with no EPS beads in the mixture.
Model of Base Saturation Flow to Improve Indonesia Highway Capacity Manual at Signalized Intersection Irawati, Iin; Munawar, Achmad; Setiadji, Bagus Hario
Jurnal Teknik Sipil dan Perencanaan Vol 25, No 1 (2023)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v25i1.42975

Abstract

The intersection is a significant part of the urban traffic network. One of the problems of signalized intersections is the results of an analysis that do not match the field. For the analysis of signalized border crossings in 1997 Indonesia, the Indonesia Highway Capacity Manual, a product of the 1994 data processing, was used. Traffic conditions in 1994 were, of course, different from traffic conditions today. Given the significant changes related to traffic, such as increases in the number of vehicles, land use, behavior, road geometry, and technical complexity, the 1997 IHCM  needed to be improved according to the current situation. One quantity in IHCM is base saturation flow or So, which is an essential parameter in signalized intersection analysis. Base saturation flow (So) in 1997 IHCM   is 600 x We. After modeling and chi-variance test of ρ value ˂0.05 in the range 675 x We to 1000 x We^85, the result is So, which is the result of the queue length approximation field is 1000 x We.
Evaluation of Cable Tension Using Static and Dynamic Test on R.H. Fisabilillah Cable-Stayed Bridge, Batam-Indonesia Santoso, Hinawan Teguh; Hidayat, Irfan
Jurnal Teknik Sipil dan Perencanaan Vol 25, No 1 (2023)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v25i1.42513

Abstract

R.H. Bridge Fisabilillah (Bridge I) is a cable-stayed bridge, included in the series of Barelang Bridges (Batam-Rempang-Galang) which were built from 1992 to 1998. With the service life of the bridge reaching 25 years, it is necessary to check the health condition of the bridge structure. Bridge cables are one of the most important elements of a cable-stayed bridge. These cable elements dominantly experience tensile forces when transmitting loads from the decks to the bridge pylons. Cable force inspection methods can be carried out through the direct measurement method (e.g. static test using a lift-off method) and indirect measurement (e.g. dynamic test using accelerometer sensors, electromagnetic/EM sensors, and so on). This study aims to compare the cable tensile force based on the static test (lift-off method) in 2017 against the dynamic test (accelerometer sensors) in 2022. Evaluation of the cable tensile force based on the dynamic test was carried out using the taut string theory and beam string theory approaches. From the study, the two empirical approaches yielded insignificantly different results where a difference in the mean difference of -1,71% was found with a maximum difference of 28,15%. The study also shows an increase in cable force capacity to a maximum of 47,20% UTS (ultimate tensile strength) based on the taut string theory and a maximum of 53.37% UTS based on the beam string theory. This value is greater when compared to the results of the cable force based on the static test (lift-off) in 2017, which was a maximum of 41.64% UTS. It is recommended to carry out further and more comprehensive studies to determine the effect of changes in cable force distribution on the behavior of the structure on the R.H. Fisabilillah Bridge.
The Analysis of Identification and Risk Mitigation in Irrigation Work Contractors Armandoko, Achmad Zulfikar; Ruzardi, Ruzardi; Musyafa, Albani
Jurnal Teknik Sipil dan Perencanaan Vol 25, No 1 (2023)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v25i1.43248

Abstract

Irrigation construction project work is a type of project that has a relatively high risk potential compared to other project work. The development of construction projects in Indonesia can be seen from the use of new methods and technologies as well as the increasing number of parties involved. Rehabilitation of the Progomanggis irrigation network is more complicated than other rehabilitation works because it covers a large area and is located in a place with difficult access. Therefore, this work is vulnerable to the risks that will arise. Based on the results of the analysis carried out, it can be concluded that the schedule for opening and closing river water in the Progomanggis Irrigation Network Rehabilitation Project has a very high risk of project performance. The impact of risk on the project is the delay in work time. Other risks are: weather conditions; changes in work methods; shunt materials; and cropping patterns of water-using communities. Risk control on the project is carried out by conducting regular coordination meetings with stakeholders and making adjustments to work methods.   
Analysis Of The Addition Of Steel Plates Reviewed to The Compresivve Strength Capacity Of The T-Beam Pangestuti, Endah Kanti; Fitriyandi, Wage Dwi; Ramadhan, Fajar Arya; Azman, Mohamed Nor Azhari
Jurnal Teknik Sipil dan Perencanaan Vol 25, No 1 (2023)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v25i1.42863

Abstract

Reinforced concrete is used in various constructions, such as buildings, bridges, dams, road pavement, tunnels, etc. Structural strengthening of reinforced concrete beam can be done in various ways, which one is the addition of steel plates bonded to the compression area. Steel plates with a width of 150 mm and 300 mm with a thickness of 2 mm are expected to increase the compressive strength of reinforced concrete beams. Plate installation uses Sikadur 31 CF-Normal adhesive to attach steel plates and beams, and it is hoped that composite properties will occur on both of them. The test object samples were 5 beams consisting of 1 control beam and 4 reinforcement beams with a quality of 10 MPa. The beam sample has dimensions of 75 mm flange width and 80 mm flange height, 150 mm bottom width, 250 mm h height, 300 mm top width. The flexural strength test was carried out with a loading frame in two-point loading. The results of the study of adding plates showed an increase in beam capacity compared to the control beam. The percentage increase in beam capacity of test objects BP 1(1) and BP 1(2) with 150 mm wide plate reinforcement was 17.19% and 18.85%. The increase in beam capacity of BP 2(1) and BP 2(2) specimens with 300 mm wide plate reinforcement was 26.82% and 28.02% respectively
Cost and Time Control Analysis with Earned Value Method in the MRT-Hub Building Construction Arifin, Muhammad Faizal Ardhiansyah; Sarifatuzzuhriyah, Maulidiya; Liu, Shu Sun
Jurnal Teknik Sipil dan Perencanaan Vol 25, No 1 (2023)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v25i1.43043

Abstract

Along with Indonesia's economy and population growth, the community's need for building construction and infrastructure will also increase. Project implementation is undoubtedly expected to meet the predetermined quality, time, and cost targets, so a good project management system is needed. However, there is often a mismatch between planning time and realization due to obstacles during project performance, causing delays and over-budget on the project completion. Therefore, it is necessary to monitor the cost and time carried out in an integrated manner to estimate the total cost and time needed until the project is completed. This monitoring is used to avoid delays and cost overruns, which can be done using the Earned Value Analysis Method. This research is expected to monitor and control the time and cost required to implement the MRT-Hub Building Construction Project of Dukuh Atas Intersection to avoid losses or delays when the project is completed. The results of the analysis, based on the Earned Value Analysis Method at week 57th after the addendum, the result of the Schedule Variance (SV) is negative. In contrast, the Cost Variance (CV) is positive (+). The result of the Schedule Performance Index (SPI) is smaller than 1, while the Cost Performance Index (CPI) is greater than 1 ( 1). Thus, it is known that the project performance is running slower than the planned schedule, and the actual cost is smaller than the budget performed. Based on these results, the estimated temporary schedule (ETS) at week 57th is 188.3538 days with a remaining cost (ETC) of IDR 97,526,302,702.70. Meanwhile, the estimated project completion time (EAS) is 584.3538 days with an estimated all-cost (EAC) of IDR 171,868,372,084.14. Thus, it can be concluded that the project is expected to be -0.0606% later than the addendum schedule, with an estimated project profit of 10.0123% of the addendum budget.
The Effect of Polypropylene Fiber and Steel Fiber on Geopolymer Concrete Widiana, Niza; Satyarno, Iman; Siswosukarto, Suprapto
Jurnal Teknik Sipil dan Perencanaan Vol 25, No 1 (2023)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v25i1.40999

Abstract

One of the environmentally friendly concrete as an alternative to cement concrete in the future is geopolymer concrete which used a cement substitute in the form of fly ash. To prevent premature cracking of the concrete, this study added fiber types such as polypropylene fiber, and steel fiber (dramix), this experiment with 3 variables namely the addition of polypropylene fiber by 0%, 0.40%, 0.80%, 1.2%, steel fiber of 0.25%, 0.50%, 0.75%, 1.00%, as well as a combination of polypropylene fiber and steel fiber (0.4%P;0.50%D), (0.8%P;0.75%D), (1.2%P;1.00%D) of the weight of the concrete. In this study, using a beam specimen measuring 10x10x50 cm, for each percentage of fiber usage there are 2 beam trials. Geopolymer concrete in this study uses a ratio of NaOH and Na2SiO3 is 2:1 and a constant concentration of 10 Molar, to test the Flexural Strength Test of Concrete at the age of 28 days of concrete. The results of the highest average flexural strength of geopolymer concrete without fiber σl = 78.77 kg/cm2, using polypropylene 0.80% σl =50.50 kg/cm2, and 0.25% steel fiber σl =68.87 kg/cm2, the combination of both fibers (P0.4%; D0.25%) σl =65.34 kg/cm2. These results do not produce good workability, thus affecting the decrease in flexural strength. By increasing the ratio A = 0.35 to 0.45, the geopolymer concrete mix produces better workability with the highest average flexural strength of geopolymer concrete with polypropylene fiber 0.8% σl = 80.107 kg/cm2.
Behaviour of Axial Bearing Pile under Liquefaction Condition Based on Empirical and 3D Numerical Simulation Zakariya, Ali; Rifa’i, Ahmad; Ismanti, Sito
Jurnal Teknik Sipil dan Perencanaan Vol 25, No 1 (2023)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v25i1.42954

Abstract

The liquefaction phenomenon affects to bearing capacity losses of building foundations. When liquefaction occurs in loose sandy soils, the pore water pressure increases, and the effective soil stress decreases significantly. This study deals with the bored pile foundation of Kretek 2 bridge, which is located in an area with high vulnerability to liquefaction. The study aimed to estimate the axial load-bearing capacity of the foundation of Kretek 2 bridge under liquefaction conditions. This study compares the results of calculations using empirical approaches with 3D numerical simulation modeling using MIDAS GTS NX. The results of the empirical calculations show a reduction in the axial bearing capacity of the foundation under liquefaction conditions of 2.88-8.16% and 2.63-7.23% for the approach of Reese and Wright 1977 and O’Neill and Reese 1989, respectively. While using 3D numerical modeling, although there was a decrease in skin resistance, there was no significant decrease in the total bearing capacity, and it was still above the design load (3632.563456.02 kN). Based on these results, the bearing capacity of the installed Kretek 2 Bridge foundation is still capable of receiving loads during static and liquefaction states.

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