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Lusiana Lusiana
University of Tanjungpura
Civil Engineering, Building, Construction & Architecture

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OPTIMAL SITE LAYOUT SELECTION FOR PLACEMENT OF FACILITIES AND MATERIAL IN THE CONSTRUCTION PROJECT OF KUBU RAYA DISTRICT EDUCATION AND TRAINING BUILDING Roslia Putri Meidita; Lusiana Lusiana; Syahrudin Syahrudin
Jurnal Teknik Sipil Vol 23, No 4 (2023): JURNAL TEKNIK SIPIL EDISI NOVEMBER 2023
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v23i4.68267

Abstract

Construction project work has several essential components: construction workers, tools, materials, and other needed facilities. The placement of tools, materials, and facilities in construction projects affects the efficiency of movement (traveling distance) and the level of worker safety (safety index). It is the background of this research aims to analyse the placement of tools, materials, and other facilities in the construction project of the Kubu Raya Regency Education and Training building. In this study, indicators to point out the placement of tools, materials, and other facilities have been optimized by using some indicators such as movement efficiency (traveling distance) and the level of worker safety (safety index). Four alternative placements were drawn up (including the existing placement in the current project), analysed, and assessed which alternative is the most optimal. The other options are selected by analysing those four alternatives using the Analytical Hierarchy Process method and evaluated by weighting ranking. The analysis results show that alternative 3 is the optimal alternative to the traveling distance and safety index indicators. Alternative 3 represents that the placement of tools, materials, and facilities on the project is carried out by conditioning the access space between facilities, which is made capacious to reduce the barriers of workers in moving from one facility to another
FINANCIAL FEASIBILITY ANALYSIS OF THE PONTIANAK STATE CATHOLIC RELIGIOUS COLLEGE (STAKATN) SANTA MARIA LECTURE BUILDING PROJECT Nina Septia Lestari; Lusiana Lusiana; Rafie Rafie
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.78720

Abstract

In the era of globalization and rapid advancement in higher education, Indonesian institutions face challenges in providing adequate facilities to support learning. The State Catholic College of Pontianak (STAKATN) Santa Maria aims to address this by constructing a new lecture building. This study conducts a financial feasibility analysis of the project using Net Present Value (NPV), Benefit-Cost Ratio (BCR), Internal Rate of Return (IRR), Payback Period (PP), and Sensitivity Analysis. The analysis, based on a 25-year planning period, shows a positive NPV of IDR 12,949,362,911.15, an IRR of 9.36% (exceeding the discount rate of 5.1%), and a BCR of 1.231, indicating that the project's benefits exceed its costs. The Simple Payback Period is ten years, while the Discounted Payback Period is 14. Sensitivity analysis reveals that the project’s viability is at risk with significant decreases in benefits or cost increases. The project is financially viable, but careful management of risks and costs is essential for successful implementation. 
OPTIMIZATION SCHEDULING PROJECT REHABILITATION BUILDING AND HALL DEKRANASDA AND KALIMANTAN BARAT MUSEUM FENCE USING CRITICAL PATH METHOD (CPM) Layla Mutiara Halim; Lusiana Lusiana; Safarudin M. Nuh
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.75578

Abstract

This study investigates the optimization of project scheduling using the Critical Path Method (CPM) in construction projects. Focusing on the Building Rehabilitation Project, Dekranasda Hall, and Kalimantan Barat Museum Fence, the research aims to reduce project duration without altering costs. CPM is employed to map out activities in a network, identifying the critical path to enhance time management. The initial project duration was 249 days. By breaking down work items and increasing the number of workers in critical activities, the duration was reduced to 125 days. Optimization involved dividing tasks into manageable segments and determining the appropriate workforce through trial and error. The study demonstrates that effective project scheduling and resource allocation can significantly reduce completion time, highlighting CPM's value in project management for achieving efficiency and meeting deadlines. The findings emphasize the importance of detailed planning, dependency logic, and continuous monitoring to optimize construction project timelines.
THE INFLUENCE OF THE VARIATION IN ARCH HEIGHT OF THE MAIN TAYAN BRIDGE ON THE MEMBER FORCES Lusiana Lusiana; Elvira Elvira; Muhammad Yusuf; Erwin Sutandar; Asep Supriyadi
Jurnal Teknik Sipil Vol 23, No 4 (2023): JURNAL TEKNIK SIPIL EDISI NOVEMBER 2023
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v23i4.66968

Abstract

The height of the bridge arch significantly impacts the strength and structural efficiency. Research on the height of the Tayan Bridge arch was conducted to determine the values and behaviour of member forces, structural weight, and deflection and to design the optimal arch height geometry. This research involved five variations of the arch height. The bridge structure was modelled using AutoCAD software. Relevant bridge loading data based on the SNI 1725-2016 standard was inputted into AutoCAD for structural design, and then the structure was modelled and analysed using SAP2000. The analysis results provided information on the bridge weight, deflection, and member forces. The analysis results were then compared with the bridge arch height, and this comparison was presented in the form of graphs. From the analysis results, it can be concluded that the bridge arch height has a positive linear relationship with the bridge weight. Tensile and compressive forces exhibit opposite behaviour. Increasing the arch height with constant value results in weight, deflection, and member force variations. Constantly expanding the arch height also does not lead to an increase in the stiffness of the bridge. Structurally, the optimal arch height is 42.134 meters.
TIME COST TRADE OFF ANALYSIS ON PROJECT ACCELERATION WITH ADDITIONAL WORKING HOURS (OVERTIME) (CASE STUDY: BUILDING REHABILITATION PROJECT ON DEKRANASDA HALL OF WEST KALIMANTAN) Yasra Azzahra; Lusiana Lusiana; Rafie Rafie; Syahrudin Syahrudin; Safaruddin M. Nuh
Jurnal Teknik Sipil Vol 23, No 4 (2023): JURNAL TEKNIK SIPIL EDISI NOVEMBER 2023
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v23i4.71535

Abstract

Acceleration on projects is frequently used when there is a mismatch between the actual and planned schedules. In addition, acceleration is frequently implemented in response to requests from the project owner to complete the project as quickly as possible to meet specific goals so that the building can be used immediately. The owner of the Dekranasda Building and Hall in West Kalimantan requested that the project be finished immediately so that the Dekranasda Building could be used as the location for a national UMKM exhibition event. The initial plan for this project was scheduled for 152 working days. Because there would be an exhibition event, the project was accelerated to 128 working days. The purpose of this research is to accelerate the project for 24 days. The stages of this acceleration analysis start from finding what activities can be softened, then compiling a network diagram to identify activities on the critical path, followed by crashing analysis to get crash duration, crash cost, and cost slope, then Time Cost Trade-Off analysis is carried out. This research uses the PDM (Precedence Diagram Method) method applied to Microsoft Project to compile a Network Diagram. The results of the acceleration analysis show that the crashing process is carried out until the 12th crashing to meet the target acceleration duration of 128 working days from the normal duration of 152 working days, and the usual 24-day length is shortened. Twelve tasks have been added, raising the overall project cost from Rp. 6,794,007,874 to Rp. 7,091,725,614 by a total of Rp. 297,717,741.
COST ANALYSIS OF SUSPENSION BRIDGE CONSTRUCTION IN KALIMANTAN BARAT PROVINCE Usman Yasin; Elvira Elvira; Lusiana Lusiana; Herwani Herwani
Jurnal Teknik Sipil Vol 24, No 1 (2024): Vol 24, No 1 (2024): JURNAL TEKNIK SIPIL EDISI FEBRUARI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i1.72224

Abstract

The successful implementation of a job begins with the determination of a reliable estimation value. One of the models used in determining the estimated value of a job, using data from the cost budget plan (RAB) on work that has been carried out, is the Cost Significant Model.  In this study, the data used were five suspension bridge construction jobs starting from 2018 to 2022. the data obtained from the RAB is processed into independent variables and dependent variables, which are then tested using multiple linear regression methods using the SPSS application. Based on the results of the analysis, the influential variables are X2, namely Bridge Oprit Work; X4, namely Upper Building Work (Transportation and Installation of Truss Bridges); and X5, namely Lower Building Work (Angkur Block Work, Pyilon Foundations, Wind Ties) with a total weight of 85.30%.  By using the equation Y = -21,640,343,680,000 + (1,856,843,372 x X2) + (453,953,095 x X4) + (41,965,201,370 x X5), the maximum value of 62.21% and minimum value of -98.05% are obtained, so it falls into the Class 5 category. Class 5 has an accuracy value ranging from +30% to +100%, so it is estimated that it is feasible to use it to carry out the initial concept screening estimation.
Co-Authors Asep Supriyadi Elvira Elvira Erwin Sutandar Herwani . Layla Mutiara Halim Muhammad Yusuf Nina Septia Lestari Rafie Rafie Roslia Putri Meidita Safaruddin M. Nuh Safarudin M. Nuh Syahrudin Syahrudin Usman Yasin Yasra Azzahra