Applied Research on Civil Engineering and Environment (ARCEE)

IMPROVING KNOWLEDGE MANAGEMENT PROCESS USING BIM IN INDONESIAN STATE-OWNED CONSTRUCTION ENTERPRISES

2023-08-06T08:31:58+00:00

In today's digital era 4.0, the synergy between the construction industry and information technology is inevitable. Knowledge management plays a critical role in the success of construction companies, enabling them to effectively capture, store, share, and utilize valuable information and expertise. In recent years, Building Information Modeling (BIM) has emerged as a powerful tool that improves knowledge management in the construction industry. This article focuses on implementing BIM in Indonesian state-owned construction companies and how it can improve knowledge management, leading to better project outcomes, efficiency, and competitiveness. BIM-based Knowledge Management (KM) systems can capture, store, and disseminate knowledge to manage facilities through their life cycle. To describe in this study first identified from a literature review how BIM can facilitate improved knowledge management in construction projects. Second, a questionnaire survey of respondents of State Owned Construction Enterprises with ISO 1960 BIM in Indonesia will be further analyzed using a quantitative SEM-PLS analysis to determine the KM types that can be leveled using BIM. The variables used in this study are BIM implementation on KM, processes, effectiveness, and barriers to knowledge management. The results of this study show that BIM performance positively affects KM process improvement, KM effectiveness, and KM obstacle alleviation.

SELECTION OF METHODS OF CARRYING OUT FLOOR PLATE BEKESTING WORK WITH COST COMPARISON

2023-06-11T05:12:34+00:00

The process of developing an area can begin with infrastructure development, where one example of such infrastructure is a building that has various functions. The Surabaya City X building construction project is one of the objects that will be studied in this study. This project has an estimated value of Rp183.000.000.000.00. With a project value of that size, this study aims to choose alternative materials for floor slab formwork work. Floor plate formwork work is one type of work that results in the waste of material used for formwork. Formwork planning requires consideration of using a method or methods to make it easier and cheaper, especially for buildings that are the same shape as the previous building and are of the same size. Conventional floor plate formwork materials are wood, multiplex, and nails; alternative choices are conventional formwork, semi-system formwork, full-system formwork, and bondek plate formwork. The results of this study indicate that when initially analyzed using conventional formwork, it costs Rp6.421.406.646; when using alternative semi-system formwork, it costs Rp6.002.969.805; using full system formwork costs Rp5.530.690.993; and if using bondek plate formwork, it costs Rp6.116.119.937.

EVALUATION OF OCCUPATIONAL HEALTH AND ENVIRONMENTAL SAFETY BASED ON TRI HITA KARANA IN THE PURA AGUNG JAGATNATHA IMPROVEMENT PROJECT

2024-01-24T12:12:34+00:00

Implementing occupational health and environmental safety aspects is very important in project implementation. In addition to accelerating work, safety for workers is essential and must be considered. In the implementation of the project in Bali, Tri Hita Karana was carried out to maintain the stability and smoothness of the project. However, limited literature still reveals the relationship between these aspects. This study aims to evaluate and analyze the application model of occupational health and environmental safety based on Tri Hita Karana in the Pura Agung Jagatnatha Improvement Project in Denpasar City. A quantitative research design with a cross-sectional approach was used to evaluate each variable in the Tri Hita Karana component, including Parahyangan (X1), Pawongan (X2), and Palemahan (X3), on occupational health and environmental safety (Y). Two hundred selected respondents were given questionnaires to evaluate each hypothesis. The sampling technique uses total sampling with a research time of 6 months, and the model is analyzed using SEM–AMOS. The results show that the application of the Tri Hita Karana to occupational health and environmental safety has positive and significant consequences (p < 0.05) in the aspects of Parahyangan, Pawongan, and Palemahan. The mathematical model built is Y = 0.548X1 + 0.423X2 + 0.211X3, which means that a change in the Parahyangan value has a direct effect on the application of OHSE by 0.548 times, a change in the value of Pawongan has a direct effect on the application of OHSE by 0.423 times and a change in the value of Palemahan will directly affect the application of OHSE by 0.211 times. Hence, it is hoped that project implementers in Bali will be guided by implementing occupational health and environmental safety based on Tri Hita Karana.

ANALYSIS OF WASTE MATERIAL COEFFICIENT FOR CONCRETE CASTING WORK USING BIM CUBICOST TAS

2024-02-12T02:58:47+00:00

One of the construction project activities that has a large volume of work on the upper structure is casting work. In concrete requirement planning, contractors usually multiply the book by 10%. However, in practice, the concrete requirement is still less than planned. Therefore, concrete requirement planning must be calculated accurately. The volume of concrete needs to be multiplied by the waste material coefficient. This research was conducted on the XYZ Project by directly observing to obtain the volume of realized concrete purchased so that the value of the material coefficient that has taken into account waste material will be obtained. BIM Cubicost TAS is used to minimize planning volume calculation errors. The results of this study show that for horizontal casting work, the largest percentage of residual material is 3.133%, and the average percentage of residual material for horizontal casting is 2.192%. Meanwhile, for vertical casting work, the largest percentage of remaining material is 7.219% and the average percentage of remaining vertical casting material is 3.015%. Finally, the waste material coefficient is obtained as 1.022 for horizontal casting and 1.03 for vertical casting. In the AHSP Ministerial Regulation No. 1 of 2022, the coefficient value of materials for casting work using ready-mix concrete is 1.02. This reveals that the coefficient value in AHSP Minister of Public Works and Public Housing Regulation No. 1 of 2022 has not fully calculated the real waste material in the field. The analyzed coefficient values in this study can be used as a reference for the project to determine coefficients in the AHSP and aid in planning concrete volume requirements because it already takes into account the real waste material in the field.

EXPERIMENTAL STUDY ON STEEL AND POLYPROPYLENE FIBERS MORTAR BOND STRENGTH UNDER UNIAXIAL TENSION

2024-02-07T11:44:18+00:00

The present study aims to investigate the bond behavior between fibers and mortar matrix in fiber-reinforced concrete, which was explored through a uniaxial tension test. The bond behavior was studied for different types of embedded fibers: steel fibers, polypropylene fibers, and hybridizations of steel and polypropylene fibers. The mixture proportion was determined based on the absolute volume method with a water-to-binder ratio (w/b) of 0.29 to achieve high-strength mortar. The high-strength mortar was cast by utilizing an industrial waste by-product of both silica fume and fly ash as a partial cement replacement. The compressive strength and uniaxial tension tests on high-strength mortar were conducted at the ages of 28 and 140 days. The long-term bond-strength behavior was investigated at the age of 140 days. The results showed that the average compressive strengths of hardened mortar on 28 and 140 days were 54.82 MPa and 69.37 MPa, respectively. Whereas, the average fiber-mortar bond strengths with steel, polypropylene, and hybridized fibers were 8.62 MPa, 8.37 MPa, and 7.30 MPa, respectively, at 28 days and 11.22 MPa, 10.21 MPa, and 11.82 MPa, respectively, at 140 days. Compared to the equivalent bond strength of the steel fiber, the polypropylene fiber had an equivalent bond strength of 2.90% and 9.00% lower at the ages of 28 and 140 days. Meanwhile, the equivalent bond strength of hybridized fiber was 15.31% lower than that of steel fiber; however, the long-term behavior of the hybridized fiber showed its performance was about 5,35% higher than that of steel fiber at 140 days.