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Journal of Civil Engineering
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : 20861206     EISSN : 25799029     DOI : -
Core Subject :
Journal of Civil Engineering merupakan jurnal bidang teknik sipil yang mengacu pada sistem standar internasional dalam pengelolaannya dengan tujuan utama memajukan bidang teknik sipil melalui publikasi ilmiah demi terwujudnya kemudahan mendapatkan ilmu dan informasi serta mendukung kemajuan teknologi.
Arjuna Subject : -
Articles 8 Documents
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Search results for , issue "Vol 38, No 1 (2023)" : 8 Documents clear
MICROBUS STOP OPTIMIZATION BASED ON GIS FOR BUS FEEDER ON THE GUNUNG ANYAR – KENJERAN ROUTE Firmansyah Maulana Azhali; Hera Widyastuti
Journal of Civil Engineering Vol 38, No 1 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v38i1.16127

Abstract

The Surabaya City Government seeks to provide adequate public transportation such as the Bus. The current condition on the Gunung Anyar - Kenjeran route is that there is no intermodal connectivity, so it is hoped that adequate intermodal connectivity will increase the demand for buses operating on the Gunung Anyar - Kenjeran route. For this reason, this research was conducted to plan the Microbus Stop as a stop location if the Microbus is to be used as a feeder for the Bus and determine the range of Microbus Stop services to meet the needs of the community. One of the locations chosen for this research is the Gunung Anyar - Kenjeran route, this is because this route is the route with the lowest number. Activities carried out to complete this research include conducting surveys of people who are active on and through the gunung anyar - kenjeran route, planning the alternative Microbus Stop location based on demand and infrastructure data and analyzing service coverage using the service area method. From the results obtained, it was found thatd majority of community made the move from Rungkut Sub-District to Gubeng Sub-District and Genteng Sub-District to Wonorejo Sub-District. Alternative Microbus Stop locations is divided into 2 schemes, namely demand-based and infrastructure-based. The demand-based Microbus Stop Scheme has 97 stop points while the infrastructure-based Microbus Stop scheme has 1270 stop points. Based on the results of the analysis of the service coverage of Microbus Stop, it shows that the infrastructure-based scheme has a better service area that meets community expectations, namely 5299.99 ha compared to the demand-based scheme which is only 1873.73 ha. The thing that causes the demand-based scheme to have a small service coverage area is due to the lack of demand data in Bulak District.
Customer Satisfaction Analysis on the Integration of Bus Transit System in Semarang Ma`ruf Tsaghani Purnomo; Hera Widyastuti
Journal of Civil Engineering Vol 38, No 1 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v38i1.15997

Abstract

Trans Semarang and Trans Jateng are the service providers of Semarang bus transit system. Both services still operate independently and are not fully integrated. In addition, previous research has shown that multi-services integration in Semarang bus transit system is a necessity and considered important by customers. Therefore, an improvement of multi-services integration in Semarang bus transit system based on customer satisfaction is needed. The survey method used is questionnaire containing integration attributes that describe the satisfaction and expectations of customers. This research uses Importance-Performance Analysis, Kano model, and Quality Function Deployment method to obtain improvement priorities based on 150 respondents which have traveled with Trans Semarang and Trans Jateng in one trip. The result of this research indicates that 10 improvement that can be implemented in Semarang bus transit system multi-services integration which are prioritized from integration of multi-services information technology, provision of single ticket, and re-adjustment of time tables.
LEARNING ABOUT CONCRETE-FILLED TUBE USING CHATGPT Jen Hua Ling; Yong Tat Lim; Wen Kam Leong; How Teck Sia
Journal of Civil Engineering Vol 38, No 1 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v38i1.16470

Abstract

ChatGPT is an artificial intelligence that can understand context and respond appropriately. It could be used for research on a topic. However, ChatGPT does not always provide accurate information. Its performance has not been tested in engineering fields. In this study, ChatGPT was consulted about concrete-filled tubes (CFT), which is a structural element primarily subjected to axial load. Fifty-eight questions were posted to ChatGPT. ChatGPT’s responses (370 sentences) were evaluated. ChatGPT generated plagiarism-free statements, with only a 12% Turnitin similarity index. 78.6% of ChatGPT’s sentences were long and complex. Thus, Hemingway Editor gave them a Grade 14 for poor readability. The information given by ChatGPT can be classified as correct, erroneous, contradictory, and unverified. ChatGPT could be used as a research tool, but with limitations. It can explain the basic concepts of CFT but also provide inaccurate and contradictory information. A researcher needs to be cautious while using ChatGPT in research. ChatGPT could be used to test some hypotheses or theories. However, the quality of the output is dependent on the user’s critical inputs and an in-depth conversation with ChatGPT.
The Effect of Individual Characteristics and Ability, Work Environment and Motivation, and Leadership Style on Employee Performance Construction Projects Salsabilla Aliza Putri Pambudi; Christiono Utomo
Journal of Civil Engineering Vol 38, No 1 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v38i1.16004

Abstract

Companies often encounter several problems, one of which is the uncertainty in market conditions that can lead to company failure. All actions taken in each activity are initiated and determined by humans who are members of the company. Employee performance is one of the most dominant factors in improving company performance which many factors can influence. The effect produced by each factor will certainly be different for each individual. Therefore, this study was conducted to determine how much influence several variables have on employee performance. The population in this study were employees who had or are currently working on a BUMN construction project with a sample of 122 respondents. To test the established hypothesis, this study will use the Structural Equation Modeling (SEM) method with a software program to input data from the questionnaire results, and then it will be calculated to see how fit the proposed model is. There is one relationship path that has no significant effect, namely the relationship between work environment variables and work motivation variables.
NON-LINEAR SECTIONAL ANALYSIS OF CONCRETE ENCASED STEEL STUB COLUMN SUBJECTED TO AXIAL LOAD Tugas Hutomo Putra; Bambang Piscesa; Hidajat Sugihardjo
Journal of Civil Engineering Vol 38, No 1 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v38i1.16055

Abstract

This paper presents a numerical parametric study of Concrete Encased Steel Column (CESC) due to centrically and eccentrically axial load. To model the confining pressure of rebar and steel profile, modified Mander’s equations was used. The non-linear sectional analysis was performed using an in-house NL-Column program using the fiber-based method. The CESC section was discretized using Netgen 2D meshing algorithm. The developed CESC model was validated using the available test results in the literature. After model was validated, parametric studies were carried out to investigate the behaviors of CESC with different concrete compression strength, confinement bar diameter, and confining space. The parametric studies found that the column with higher concrete compression strength tend to have higher axial and flexural capacity but reduce the overall ductility. Increasing the confinement bar diameter slightly increases the axial and flexural capacity and ductility on the other hand, utilizing tighter confinement space resulted in higher ductility but with small increase in axial and flexural capacity.
CONCRETE-FILLED TUBULAR COLUMN MADE OF VARIOUS TYPES OF MATERIAL Jen Hua Ling; Yong Tat Lim; Wen Kam Leong; How Teck Sia
Journal of Civil Engineering Vol 38, No 1 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v38i1.15455

Abstract

Concrete-filled tubes (CFT) are gaining popularity due to their excellent performance under compression. Various materials have been used to produce CFTs. Their behaviour varied significantly due to the properties of the materials. In this study, numerous articles related to CFT were reviewed. The effects of carbon steel, stainless steel, fibre-reinforced polymers (FRP), plastic materials, and various kinds of concrete on CFT were observed. The fundamental principles governing the behaviour of CFT were then determined. The confinement effect of the tube was the key to the outstanding performance of CFT. CFT performed well when the tube had high compressive strength, elastic modulus, tensile strength, ultimate strain, and corrosion resistance. The concrete with high compressive strength and ultimate strain, as well as low elastic modulus and shrinkage, experienced greater strength enhancement under confinement. Nevertheless, confinement effectiveness was greatly affected by the slenderness ratio. Short CFT subjected primarily to axial loads was preferred.
TRIP ATTRACTION MODEL OF HOSPITALS IN PROBOLINGGO Yecky Nuranditasari; Hera Widyastuti
Journal of Civil Engineering Vol 38, No 1 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v38i1.16086

Abstract

The hospital is one type of land use utilization which could cause vehicle attraction. It is estimated that the existence of the new Ar-Rozy Hospital would become a trip attraction. For this reason, it is necessary to conduct research to anticipate the magnitude of the movement attraction which would occur in the future due to the existence of the new Ar-Rozy Hospital. This study uses trip generation analysis at 3 existing hospitals located around downtown Probolinggo. The primary data used is a survey of vehicles entering and leaving the hospital, and the secondary one is data consisting of the number of polys, the number of practicing doctors, the number of medical staff, land area, number of rooms, number of beds. The result shows that all independent variables affect the occurrence of vehicle attraction. The best model suitable for representing the conditions of the hospital vehicle attraction is chosen based on the results of a significant regression model and consideration of the highest R2,  multicollinearity, and normality test, the best model is : Y = 91.754 + 0.623 medical staff R2 = 0.991.  
ANALYSIS OF DETERMINING PRIORITY OF ROAD HANDLING PROGRAM IN THE REGION OF KEDIRI ROAD AND BRIDGE MANAGEMENT DEPARTMENT OF HIGHWAYS EAST JAVA PROVINCE USING MULTI CRITERIA ANALYSIS (MCA) METHOD Haniffan Daruquthni Baihaqi; Catur Arif Prastyanto
Journal of Civil Engineering Vol 38, No 1 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v38i1.15972

Abstract

Steady road conditions determine the smooth running of land transportation to support economic activity. To achieve steady road conditions requires a good road management program. The government, through the agencies appointed as road administrators, needs funds to maintain the stability of the road itself. The process of budgeting funds for the implementation of the road through a process of proposals, discussions and determination of the budget. Determining the priority of the proposal requires a long discussion. The Provincial Government of East Java through the Department of Public Works of Highways has an important role in the process of handling provincial roads. Budget limitations, both Regular APBD funds and special allocation funds and other funds, create a distinct challenge for road administrators in determining an effective and optimal road management program. Based on previous research studies, priority determination of road handling can be carried out using Multi Criteria Analysis (MCA). Priority determination criteria used in this study are technical criteria which include: existing traffic conditions, road stability conditions, degree of saturation, travel speed, and travel time; financial and economic criteria which include: BOK, Time Value, BCR, and NPV. In this study it will be seen based on the results of prioritized maintenance handling found at Link 176 Kediri - Blitar City Boundary for LHR technical criteria has a difference in value of 3,190 cur/hour, with an average road condition of 27.12%, difference in degree of saturation of 0.346, the difference in travel speed is 3.409 km/hour, the difference in travel time is 3.661 minutes and for economic criteria BOK has a difference in value of Rp. 8,662,656,168, the difference in the BCR value is 0.60 and the difference in the NPV value is -Rp. 8,382,143,904.

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