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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 10 Documents
 1 
Search results for , issue "Vol 26, No 1 (2024)" : 10 Documents clear
Analysis of Public Transportation (Trans Metro Dewata Bus) as a Congestion Solution Kariyana, I Made; Sumarda, Gede; Diasa, I Wayan; Pamungkas, Tri Hayatining; Putra, I Putu Esa Mahardika
Jurnal Teknik Sipil dan Perencanaan Vol 26, No 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.50262

Abstract

In urban areas in Indonesia, traffic jams are usually not spared due to the large number of movement activities caused by the community. As happens on Gajah Mada Road, Denpasar, there are pretty frequent traffic jams, considering that this area is located in the middle of the city, where there are shophouses or shops situated side by side almost all the way. This problem is worthy and interesting to research to find out the situation. If passing vehicles are made to ride public transportation, how significant an impact will be, considering that the public transportation (Trans Metro Dewata) that often crosses this road is not operating as intended. The analysis was carried out in 3 time periods, with each period, namely morning at 06.00 - 08.00 WITA, noon at 11.00 - 13.00 WITA, and afternoon at 16.00 - 18.00 WITA. Based on the use of analysis of road performance in the form of degree of saturation with adjusted road service levels, and varied by adding assumptions regarding the use of public transportation that is likely to be effective. So, the results obtained align with the direction of this research, which found that between the original traffic flow conditions and the existing assumptions, there was a change of 7% to 24% in the level of road service. This is quite influential because it can be applied as a solution to the congestion.
Experimental Study of Cationic-Modified Biopolymer for Increasing the Shear Strength of Sand Ardiana, Andra; Lim, Aswin; Muljana, Henky
Jurnal Teknik Sipil dan Perencanaan Vol 26, No 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.49722

Abstract

The application of biopolymers as a more environmentally friendly alternative to cement has emerged as an interesting research subject.The purpose is to enhance the shear strength of sandy soils. In this article, the selected biopolymer is cationic-modified starch. It is expected that cationic starch will have less water absorption properties since modified starch has cationic groups in place of the OH- groups found in the normal starch. This cationic-modified starch namely Amylofax. Five types of samples are created for this testing, including Sample A is prepared with the composition of  (silica sand + 2% Amylofax T1100 (w/w) + 20% water (w/w))., Sample B consists of (silica sand + 2% Amylofax T2200 (w/w) + 20% water (w/w))., Sample C is comprised of (silica sand + 2% Amylofax T1100 (w/w) + 2% Glucomannan (w/w) + 20% water (w/w)), Sample D consists of (silica sand + 2% Amylofax T2200 (w/w) + 2% Glucomannan (w/w) + 20% water (w/w)), and Sample E includes (Ottawa sand + 2% cement (w/w) + 20% water (w/w)). The samples were tested using a direct shear test apparatus to determine the soil shear strength parameters (c) cohesion and (Ø) internal friction angle. After conducting the tests on the sand samples with the addition of modified starch biopolymer (cationic starch), it was found that the cohesion value was 961kPa, and the internal friction angle was 63°. These results indicate higher shear strength values compared to sand mixed with natural starch.
Evaluation of Water Availability in Batukarut to Fulfill Irrigation Water Needs in Batukarut and Clean Water PDAM Sukabumi City Mustopa, Ali; Hartono, Hartono; Robial, Siti Muawanah
Jurnal Teknik Sipil dan Perencanaan Vol 26, No 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.48876

Abstract

The condition of water availability in the Batukarut area is unstable in meeting clean water and irrigation needs, so there is a need for further analysis in fulfilling clean water and irrigation. The aim of this research is to determine the conditions of water availability, determine the amount of clean water needed and irrigation needs and the distribution of water when there is a shortage. The method used to determine water availability is the FJ Mock (1973) method with the water balance principle. The research results show that water availability in Batukarut using Q 90%, the maximum discharge occurs in February with a value of 231.5 liters/second and the minimum value occurs in September and October with a value of 87.3 liters/second. PDAM Tirta Bumi Wibawa Sukabumi's clean water requirement is 150 liters/second. Regarding water requirements for irrigation, the maximum requirement occurs in May with a discharge of 414.4 liters/second, while the minimum requirement occurs in November with a value of 0.00 liters/second. The distribution of water needs in February requires clean water of 150 liters/second and irrigation needs of 87.3 liters/second, the distribution of water needs in October of clean water needs of 50 liters/second, irrigation needs of 37.3 liters/second.
Numerical study of steady pipe flows and head loss coefficients Bangun, Emma Patricia; Mahdi, Nabil
Jurnal Teknik Sipil dan Perencanaan Vol 26, No 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.48630

Abstract

The study concerns steady pipe flows within 90o-bend and T-junctions, the head loss coefficients and the physical mechanisms responsible for the energy loss. Numerical viscous flow modelling based on SimpleFOAM solver were implemented in the study. Although secondary flow acts as the mechanism of energy loss in both the bend and in the branch flow of T-junction, the head loss coefficient in the former more critically depends on Reynolds (Re) number. This is supported by the comparison of the streamline fields and the radially varying profiles of the pressures from both cases. The location of flow separation prior to the secondary flow in the bend changes with Re number unlike the fixed location at the junction in the branch flow. The study confirms a practical implication related to the dependence of the head loss coefficients for pipe with 90o-bend and T-junction on flow velocity in an analysis of pipe network.
Assessment of Residential Satisfaction using Importance-Performance Analysis: A Case Study in Naypyitaw City, Myanmar Phyu, Pan Ei; Effendi, Nursyirwan; Purnawan, Purnawan
Jurnal Teknik Sipil dan Perencanaan Vol 26, No 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.47397

Abstract

This study evaluates the residential satisfaction of government-provided four-storey apartment buildings within civil-servant housing in Naypyitaw City, Myanmar. The research is based on a questionnaire survey conducted in nine civil-servant housing complexes situated in Naypyitaw's residential zone. Its primary objective is to identify key attributes that can enhance residents' satisfaction with these apartment buildings and provide recommendations for future housing development. Utilizing a multi-cluster sampling method and employing face-to-face interviews, respondents rated attribute importance and satisfaction using a five-point Likert Scale. The collected data were subjected to Importance-Performance Analysis (IPA), revealing ten priority attributes for improving residential satisfaction. These findings suggest that enhancing residents' contentment involves modifying and reviewing factors such as Ceiling Height, Layout Plan of Apartment, Size of Rooms and Corridor, Numbers of Rooms, Staircase Design, and addressing Neighborhood Relations. Additionally, the study underscores the importance of situating housing near essential amenities like Schools for Children, Shopping Locations, Places of Worship, and Police Stations to create a more livable city.
Analysis of Changes in The Erosion Level and Sedimentation in The Tempuran Reservoir Catchment Area of Blora Year 2017-2021 Wijaya, Arwan Putra; Rosyiidah, Rofi’ Ronaa; Bashit, Nurhadi
Jurnal Teknik Sipil dan Perencanaan Vol 26, No 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.47302

Abstract

Tempuran Reservoir is one of the existing water supply reservoirs in the Jratun Seluna River Basin located in Blora Regency. This reservoir has an important role to store water in the rainy season, provide raw water, and irrigate around 420 ha of surrounding land, so it is necessary to maintain its management so that it can continue to function optimally. However, sedimentation is often the main problem for the reservoir, which occurs as a result of the erosion process in the Tempuran Reservoir Catchment Area which then settles to the bottom of the reservoir. In addition, climatic conditions are thought to be a factor that greatly influences erosion. This is exacerbated by the fact that Blora Regency is an area that often experiences drought due to low rainfall. Therefore, this study aims to determine the development of erosion rates and the level of erosion hazard in the Tempuran Reservoir catchment area in 2017-2021, and to predict the sediment yield flowing into Tempuran Reservoir in 2017-2021. The method used to predict erosion results is the Universal Soil Loss Equation (USLE) and utilizes the Sediment Delivery Ratio (SDR) to predict sediment yield entering the reservoir. The results showed a decrease in the erosion rate of -1773,357 tons/ha/year in 2019 and continued to decrease by -66,694 tons/ha/year in 2021. The most influential factor in reducing the erosion rate in the Tempuran Reservoir catchment area is the rain erosivity factor. Meanwhile, sedimentation carried to Tempuran Reservoir in 2019 decreased by -117,344 tons/ha/year and in 2021 there was also a decrease of -4,413 tons/ha/year.
Decreasing Strength of Prestressed Concrete Beams Due to Failure of Part of the Strands Withdrawal Budiadi, Andri
Jurnal Teknik Sipil dan Perencanaan Vol 26, No 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.47294

Abstract

Abstract.This research paper is to study the decreasing strength of a 22,1 meter long span Prestressed Concrete U Girder due to two strands in a tendon out of six tendon are not being able to be stressed. This matter is a cause of an error in the implementation of the PC-U girder manufacturing resulted in a reduction in the area of the tendon sleeve (duct), two out of seven pieces of the strand cannot be inserted completely. PC-U girder performance will suffer a strength decrease, it needs to be checked and handled.  This paper is an actual project condition and researched to verify how much strength reduction due to such a case.  Analysis is performed to measure and compare the moment capacity of a cross-sectional conditions in accordance with the results of the designed section. Moment capacity analysis is carried out to determine the ability of the cross section to support the working load with a bonded tendon. Research methodology involves calculation of moment capacity Mu using trial and error processes of calculating the depth of neutral axis c using Equilibrium Equation so that with a trial c value, ultimate prestressed strain value εpu and ultimate prestresses stress value σpu are coincided in the Moment-Curvature curve line. Using the overlapped c value, Moment capacity of the girder with full strand can be calculated. A similar procedure is performed with reduced strand number. The difference between the two are the reducing prestressed concrete strength. Evaluating both analyses, it is found that a decrease in the moment capacity of the cross section as much as 530,93 kNm to the designed moment capacity of 18.108,06 kNm or approximately 2,93% of its original designed strength.
The Performance Analysis of Trans Metro Pekanbaru During the COVID-19 Pandemic Muttaqin, Muchammad Zaenal; Ramanda, Irfan; Zaini, Abdul Kudus; Kumalasari, Cyintia
Jurnal Teknik Sipil dan Perencanaan Vol 26, No 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.47132

Abstract

During the  COVID-19 pandemic, the  Trans Metro Pekanbaru bus manager limited the number of passengers, operating hours, and rit. This policy follows the implementation of the transition period towards a new normal in Pekanbaru City. This government policy’s enactment has influenced the performance of Trans Metro Pekanbaru public transportation during the  COVID-19  pandemic. This study analyzes the performance of  Trans Metro Pekanbaru public transportation during the  COVID-19 pandemic based on passenger operations and perceptions. The research methods used in this study are quantitative and qualitative. The data analysis used is an analysis of operational performance data during the COVID-19 period and an analysis of passenger perceptions of service performance during the COVID-19  period. The results of this study show that the operational performance of  Trans Metro Pekanbaru public transportation during the  COVID-19  pandemic based on load factor, headway, and frequency indicators is considered insufficient. The average load factor value on all routes is below 70%, with the highest and lowest average values being 42% on the  Ramayan – Pandau route and 2% on the   Unilak – route Palas Kingdom. The average headway value on all routes is more than 10  minutes, with the highest average being 63 minutes on the  BRPS – UIN and Ramayana – Unilak routes. The average frequency value on all routes only reaches 1-3 vehicles/hour, with the highest average being 5 vehicles/hour on the  Ramayana route - Pandau. Based on passenger perception, it shows that passenger perception of the quality of Trans Metro Pekanbaru public transportation services during the  COVID-19  pandemic is considered good. This can be seen from the average score of respondents’ assessment of 74.86%.
Identification of Potential Locations for Soil Investigation based On Geographic Information System (GIS) Apriani, Dyah Wahyu; Qusairy, Muhammad Ichsan
Jurnal Teknik Sipil dan Perencanaan Vol 26, No 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.47084

Abstract

A site study is conducted to comprehend the stratigraphy, soil type, water depth, and soil deformation qualities. Using this data, cost-effective substructure designs, supporting structure research, alternative development plans, and the site's safety are all possible. Site investigations must be planned to obtain maximum information, represent field soil conditions, and be relevant to development. Excessive investigations waste money and time, while insufficient investigations raise the risk of failure of the constructed structures and cause the data not to reflect the area's conditions accurately. Planners can determine where a site investigation should be conducted in each area by mapping possible investigation locations. The Standard Penetration Test and Cone Penetration Test site investigation location data are used in this study to map possible site investigation locations using spatial analysis in GIS, yielding recommended investigation locations. Elevation, slope, and prior site studies are the three parameters combined to create the weighting method, fuzzy overlay gamma, and per-cell statistical maximum employed in the spatial analysis. The inference matrix is used to validate the accuracy of the spatial analysis results. The inference matrix validation results indicate that the weighting approach has a higher accuracy rate of 63,55%. The findings indicated that the southeast, northeast, and west of the research site had significant potential for site studies in limited regions
Analysys of Variation of Soaking Duration of Asphalt Concrete Wearing Course (AC-WC) Mixture Using Natural Rubber Modified Asphalt Against Indirect Tensile Strength Value (ITS) Saleh, Alfian; Siregar, Iwan Ananda; Anggraini, Muthia
Jurnal Teknik Sipil dan Perencanaan Vol 26, No 1 (2024)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.46597

Abstract

Natural rubber asphalt modification is the result of the mixing of asphalt with natural rubber plus chemical additives of vulcanization (sulfur) that are mixed into one in a hot state. The addition of natural rubber makes the asphalt more elastic and able to withstand loads from heavier vehicles, more heat-resistant, and more adhesive to aggregates that make the road surface more resistant to cracks and holes. The research aims to analyze indirect tensile strength values in asphalt-modified natural rubber. The research method is a laboratory experimental study referring to SNI 6753:2015, with immersion variations of  ½ hour, 24 hours, 48 hours, and 72 hours. The results of the study were indirect tensile strength values at congestion for 12 hours, 24 hours, 48 hours, and 72 hours in a row of 459,752 KPa, 427,571 KPa, 379,771 KPa, and 379,971 KPa. The resulting tensile strength ratio for each variation is 100%, 92.98%, 82.59%, and 75.52%. The study concluded that the tensile strength ratio at submersion for ½ hours, 24 hours, and 48 hours meets the requirements of the AASTHO T-283 specification.

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