Jurnal Pensil : Pendidikan Teknik Sipil

Front Matter Jpensil Volume 13 Issue 2, May 2024

Editor Jpensil — Fri, 31 May 2024 00:00:00 +0700

Back Matter Jpensil Volume 13 Issue 2, May 2024

Editor Jpensil — Fri, 31 May 2024 00:00:00 +0700

ANALYSIS OF THE INFLUENCE OF ORDER VARIATION FACTORS ON THE COSTS AND TIME OF IMPLEMENTING CHANNEL DIVERCTION INFRASTRUCTURE CONSTRUCTION PROJECTS IN RESIDENTIAL AREAS

Ghazi Ghossan Hindami, Agus Suroso, Mawardi Amin — Wed, 29 May 2024 00:00:00 +0700

Tangerang is a big city in Indonesia. The housing sector rocketing in this region. Changes in development often occur because problems arise and have an impact on costs and time. Researchers focused on finding the cause of the work diverting residential channels being hampered. For this reason, changes were made to the sheetpile design and changes to the infrastructure mobilization method to meet the contract time. The research uses the SEM PLS method to determine the factors causing order variations. In addition, the data processing application was used to determine the effect of order variations on time and cost performance. The respondents were 60 owners and consultants. Based on the results of the cost performance analysis, additional work arising from order variations reached 10,516,305,346 IDR and reduced work due to order variations reached 6,628,461,533 IDR or around 12.96% of the initial contract price and the results of time performance analysis for time losses that occurred due to order variations on the project showed an additional time of 5 months or 125%.

THE EFFECT OF BUILDING INFORMATION MODELLING (BIM) METHOD IMPLEMENTATION ON THE EFFECTIVENES OF BUILDING CONSTRUCTION IMPLEMENTATION MANAGEMMENT IN THE CONSTRUCTION INDUSTRY

Wed, 29 May 2024 00:00:00 +0700

The aim of this study is to analyze the impact of Building Implementation Information Modeling (BIM) on the efficiency of building construction management quantitatively. It has become a significant method in the construction industry with the potential to improve collaboration, coordination and information management in the implementation of construction projects. The research method uses simple linear regression analysis with data from construction professional respondents. The study involved 52 contractor companies in the construction industry. The selection of these samples is aimed at obtaining representative and adequate data for simple linear regression analysis. With large sample sizes, the results are expected to be more accurate and reliable. In addition, the selection of 52 respondents is also carried out to cover a variety of perspectives and professional experience of construction, making the data obtained more representative, and more reliable for the analysis performed. Implementation of BIM has a significant and positive impact on building construction management, demonstrated by a count t value = 12.217 greater than the table t value of 2.00856. The determination coefficient (R-square) of 0.749 or 74.9% suggests that 74.9 percent variation in building management efficiency can be explained by the implementation of BIM. This finding emphasizes the importance of using BIM to improve management effectiveness in building construction in the construction industry. The implications of this research provide a basis for encouraging the adoption of BIM as an effective tool in the management of construction projects.

STABILITY ASSESSMENT OF ROOT-REINFORCED SLOPES USING FINITE ELEMENT LIMIT ANALYSIS

Dio Alif Hutama, Himatul Farichah — Wed, 29 May 2024 00:00:00 +0700

Slope instability poses serious threats to infrastructure and environmental sustainability. As a result, numerous reinforcement techniques have been used as disaster mitigation attempts to prevent slope failure. Among various traditional slope reinforcement methods, the use of vegetion root is more cost-effective and environmentally friendly. This paper presents stability assessment of root-reinforced slopes. Firstly, slope models were built for case of bare and root-reinforced slopes. The slope angles were varied in the range of 15º ~ 55 º. The root cohesion and depth of root zone were adjusted within the ranges of 0 ~ 20 kPa and 0 ~1.5 m, respectively. The strength reduction finite element limit analysis method was applied to evaluate the stability of the slopes in this study. The results indicate that factor of safety increases with the increasing of root cohesion and depth of root zone. The best factor of safety was obtained for the case with root cohesion and depth of root zone of 20 kPa and 1.5 m, respectively. Shear dissipation contours of the slope models also show that root reinforcement reduces shear dissipation energy along the failure surface, consequently lowering the possibility of slope failure.

ANALYSIS THE INFLUENCE OF VARIATION SHEAR REINFORCEMENT SPACING IN REINFORCED CONCRETE BEAM TESTING

Sudarno P Tampubolon, Dikky Antonius — Wed, 29 May 2024 00:00:00 +0700

Beams are crucial components of a building structure that require attention during the design phase. Several failures in beams occur due to inadequate installation of reinforcement according to the planned procedures or designs, which can lead to structural failures. Based on the analysis and testing of three reinforced concrete beams B1, B2, and B3 conducted in the laboratory, the maximum axial compressive strength obtained is 125 kN and the flexural tensile strength is 5.56 MPa. The deflection values observed for beam B1 7.05 mm, beam B2 8.4 mm, and beam B3 18.75 mm. The crack widths observed for beam B1 range from 0.1 to 0.4 cm, beam B2 range from 0.1 to 5 cm, and beam B3 range from 0.1 to 12 cm. Deflection values and crack patterns/failure modes observed in reinforced concrete beams B1, B2, and B3, it is evident that the most significant failure patterns occur in Beam B3 with a stirrup spacing @200mm compared to stirrup spacings @100mm and @150 mm. The use of 45° hooks on stirrups results in diagonal failure in beams. This is attributed to the strong bond between the concrete and the installed reinforcement, thereby interlocking with each other.

ANALYSIS OF THE EFFECT OF CONTRACT CHANGE ORDER FACTORS ON THE PERFORMANCE OF ROAD FACILITY PROJECTS

Dhona Lailatul Qomariah, Budi Susetyo — Wed, 29 May 2024 00:00:00 +0700

Road facilities are part of the national transportation system according to Article 25 in Law of the Republic of Indonesia Number 22 of 2009 concerning Road Traffic and Transportation. Road facilities in the form of sidewalks and crossings are crossings for pedestrians. The arrangement of sidewalks by the DKI Jakarta Provincial Government is to improve urban infrastructure, where the percentage of sidewalk arrangements by 2022 will reach 5.58% of the length of roads in Jakarta. This research aims to determine the influence of factors Contract Change Order (CCO) on cost performance and implementation time for sidewalk arrangement activities, using structural equation modeling techniques-partial least squares (SEM-PLS). This research focuses on identifying the main CCO factors that directly influence cost performance, and indirectly influence implementation time performance through cost performance on road facility projects. There are 3 (three) types of research variables used; The independent variables consist of scope of work, planning, policy changes, specification changes, and coordination of related parties, the dependent variable is cost performance and the intervening variable is cost performance as a mediating variable of the influence of the CCO factor on time performance. The results showed that the coordination of related parties had a direct and significant positive impact on cost performance by 59%, and an indirect and significant impact on time performance through cost performance as a mediating variable by 37.7%.

EVALUATION OF PUBLIC TRANSPORT FACILITIES AT PORTS, AIRPORTS, STATIONS, AND TERMINALS

Wed, 29 May 2024 00:00:00 +0700

Abstract

Indonesia is known as the "Land of Islands" because it has thousands of islands scattered from Sabang to Merauke. To connect various regions or islands, Indonesia has a diverse range of public transportation modes. Facilities in public transportation must be adequate to accommodate prospective passengers traveling to a particular area. Evaluation of public facilities is essential to enhance the comfort of passengers. This research was conducted using direct observation methods and literature reviews from sources available on the internet. In this study, several public transportation modes are discussed, namely Ketapang Port, I Gusti Ngurah Rai Airport, Bandung Station, and Guntur Melati Terminal. Ketapang Port has some shortcomings, including the need for improvement in weather information systems, operational traffic system enhancement, service improvement, and expansion of the dock. Meanwhile, I Gusti Ngurah Rai Airport has a deficiency in the VVIP parking area, requiring improvement. According to Minister of Transportation Regulation No. 63 of 2019, Bandung Station lacks aspects related to safety, security, comfort, and convenience. Terminal Guntur Melati, as per Minister of Transportation Regulation No. 40 of 2015, faces deficiencies in safety and convenience aspects.

Keywords: Facilities, Public Transportation, Evaluation

APPLICATION OF VALUE ENGINEERING IN ARCHISTECTURAL WORK ON THE LAHAIROI LATERI CHURCH PROJECT, AMBON CITY

Ryobi Irfanto, Eva Mardianty Patty, Rut Lidyawati — Fri, 31 May 2024 00:00:00 +0700

Effective construction cost control such as saving construction costs will increase the chances of project success and user satisfaction. The biggest component in construction costs is material. High material costs necessitate a review of building functions. Construction savings are made by reviewing the largest cost components in architectural work. Review of material components is carried out using the value engineering method. Value engineering is a method for getting an alternative picture so that the costs incurred are more efficient than the initial planning costs. The application of value engineering to construction projects has a major impact on planning by generating reviews to obtain cost effectiveness. Research was conducted at the Lahairoi Lateri Church Building project located in Ambon City. The aim of this research is to find alternative material substitutes for architectural work and obtain total cost savings by using the concept of value engineering. The use of the value engineering concept is carried out by information phase, analyzing the function of using index function analysis techniques, identifying alternative materials, and evaluating the results of the alternative materials. Research using the value engineering concept on the Lahairoi Lateri Church Building Construction project, Ambon City achieved cost savings of 861,116,841.05 IDR. This amount saves 5.32% of the initial architectural work costs of 16,170,539,500 IDR. These results show that value engineering can eliminate unnecessary costs in church-type building without changing the building function.

ARE VOCATIONAL SCHOOL STUDENTS READY TO FACE WORKFORCE DISRUPTION IN THE CONSTRUCTION FIELD?

Anas Arfandi, Akshari Tahir Lopa, Hasbi — Fri, 31 May 2024 00:00:00 +0700

The purpose of this research is to 1) Describe the digital literacy understanding of vocational high school students in the Construction and Property Engineering program. 2) Analyze students' understanding of technological disruption in the field of construction. 3) Analyze students' readiness to face technological disruptions in the construction field. The research was conducted at a vocational high school that offers the Construction and Property Engineering program in South Sulawesi province. The study took place from March to June 2023. The population of the research consisted of all students in grade X, totaling 1125 students. The sample size was determined using the Slovin formula with a 0.05 level of error, resulting in a sample of 318 respondents. All items are valid and reliable based on the validity and reliability test with a value greater than 0.361. The research findings indicate that the digital literacy understanding of vocational high school students in the Construction and Property Engineering program regarding their readiness to face the labor workforce disruption in the construction field is mostly categorized as very good with a percentage of 80%. Furthermore, students' understanding of technological disruption in the construction field and their readiness to face the labor workforce disruption in the construction field is dominantly categorized as very good with a percentage of 63%. Student readiness is dominantly in the Able category, but there are still 18% who are in the Need to optimize category in facing technological disruption in the construction sector.

ANALYSIS OF THE INFLUENCE OF INTERNAL FACTORS ON PROJECT PERFORMANCE IN LOW-RISE COMMERCIAL BUILDING CONSTRUCTION PROJECTS IN TANGERANG

Ardianto Vernandes Laia, Budi Susetyo — Fri, 31 May 2024 00:00:00 +0700

From the construction statistics data of the city of Tangerang, in 2022 the construction business field contributes 8.16 percent to the total economy of the city of Tangerang, each construction project certainly has a certain work plan and work schedule, which is so that the project can be completed as planned. The impact that causes delays in project implementation time can be accompanied by increased costs of implementing the project. This study aims to know and identify and analyze factors - factors Labor factors, material factors, equipment factors, place characteristics factors, managerial factors, planning and scheduling factors and other factors. that affects time and cost performance. Research uses SEM-PLS to determine potentially influencing factors through literature review. The results of the study found that managerial factors had a significant influence on time performance with a coefficient value of 3.962, while planning and scheduling had a significant influence with a coefficient value of 2.773. While the effect of time performance on cost increase has a significant effect of 5.465.