Journal of Infrastructure Planning and Engineering

EFFECTS OF ALUMINUM FIBERS ADDITIVE ON THE COMPRESSIVE STRENGTH OF A CONCRETE

Sudirman Indra — 2024-05-31

Utilizing recycled waste as an additional construction material is an innovation that can reduce the negative environmental impacts caused by waste. One of the wastes that can be utilized in this case is aluminum cans. The use of aluminum fiber in concrete mixtures is appropriate since aluminum is resistant to corrosion or rust. This research aims to determine the effect of adding aluminum fiber on the compressive strength of concrete. The aluminum cans were shaved into fibers with dimensions of 2 x 35 mm. The resulting aluminum fiber is then added into the concrete mixture with a percentage of 0%, 0.05%, 0.075%, 0.1%, and 0.125% of the total volume of the test objects. Tests for compressive strength was then carried out after test specimens were aged for 28 days. The test results showed a peak compressive strength of (20.72 ± 0.35) MPa is observed at the addition of 0.05% aluminum fiber relative to the volume of concrete used for testing. A regression analysis was performed based on the relationship between the amount of aluminum fiber additive and the resulting compressive strength. Based on this analysis, the optimum value for aluminum fiber to be added to the concrete is 0.040% of its volume.

IDENTIFICATION OF JOGGING TRACK POTENTIAL BASED ON 4A IN BAHA TOURISM VILLAGE, MENGWI SUB-DISTRICT

Suparmi Ni Ketut — 2024-05-31

Baha Village is one of eleven other villages in Badung Regency designated as a Tourism Village by the Badung regional government. Baha Village has a tracking path as one of its tourist attractions. Located in a rice field area of 273 hectares with a length of 6 km tracking lane, it allows tourists to visit rice fields, travel by bicycle, exercise, enjoy natural beauty and feel the beautiful rural atmosphere. With its potential, it allows the development of jogging track tourism in Baha Tourism Village in a sustainable manner. The purpose of this research is to identify the potential of the jogging track based on 4A (Attracktion, Accessibility, Amenity, Ancilliary), The analysis method that can be used is the SWOT matrix, this matrix can clearly describe how the external opportunities and threats faced are aligned with its strengths and weaknesses. This matrix can generate four sets of alternative strategies as follows: 1) The SO (Strenght - Opportunity) strategy concluded that the location of Baha Tourism Village is considered strategic with the existence of tracking paths, rice field views, and the Balai Subak museum as the main potential. The support of the Badung Regency government in financing development is a significant advantage. This conclusion shows that Baha Tourism Village can take advantage of its internal strengths to optimize existing external opportunities. 2) The WO (Weaknes-Opportunity) strategy concludes that despite limitations in supporting facilities and electrical infrastructure, Baha Tourism Village can maximize its potential by utilizing financial support from the Badung Regency government. Utilizing external financing can help overcome internal weaknesses and create conditions that are more conducive to the development of jogging track tourism. 3) Strategy ST (Strenght - Threats) then obtained the conclusion Although there is competition with other tourist villages that have similar concepts, Baha Tourism Village can develop by maximizing its unique potential. The addition of artificial tourism such as mushroom restaurants, fishing parks, and the tradition of metekap by farmers can create its own attraction, differentiate Baha Tourism Village from competitors and overcome potential external threats.4) WT Strategy (Weakness - Threats) It is concluded that facing challenges from similar tourist village concepts, Baha Tourism Village needs to create new icons to attract tourists. This approach involves developing uniqueness such as flower gardens as photo spots, metekap attractions from farmers, and mushroom restaurants. Thus, Baha Tourism Village can overcome internal limitations and potential external threats by presenting something new and interesting.

STUDY OF THE APPLICATION GREEN CONSTRUCTION IN TESTING THE FUNCTIONAL FEASIBILITY OF MAIN PRAJA OFFICE THE REGIONAL SECRETARIAT OF DENPASAR CITY

I Gusti Agung Gede Jaya Adhiputra — 2024-05-31

The functional feasibility and green construction application in the retrofitting of the Praja Utama office building of the Denpasar City regional secretariat was investigated based on Indonesian regulations PUPR Ministerial Regulation No.21 of 2021 concerning Green Buildings and PP No. 16 of 2021 concerning building functional feasibility testing. Visual observations and structural analysis using SAP2000 software revealed significant damage to structural elements, compromising the building's safety and functionality. A retrofitting plan was developed using Fiber Reinforced Polymer (FRP) to strengthen and repair the damaged components. The green construction assessment showed a high level of compliance, with 12 out of 13 required categories fulfilled in the retrofitting process. The findings highlight the importance of regular structural assessments, timely retrofitting interventions, and the feasibility of incorporating sustainable practices in building rehabilitation projects. The successful application of FRP and green construction principles demonstrates the potential for restoring structural integrity while minimizing environmental impact. Future research could explore the broader application of these methods and develop standardized guidelines for functional feasibility assessments and green construction in retrofitting projects.

INTEGRATING BIM WITH 3D WEB DESIGN FOR ENHANCED 3D BUILDING VISUALIZATION AND SAFETY PLANNING IN CONSTRUCTION PROJECTS

I Made Surya Kumara — 2024-05-31

The construction industry is renowned for its hazardous nature, with a significant number of accidents occurring annually. These accidents result in serious consequences, including costs for disability benefits, decreased worker productivity, and idle equipment, hindering development. To address these challenges, safety must be a priority during the construction planning stage. Occupational Health and Safety (OSH) programs play a crucial role in ensuring worker safety and health. Building Information Modeling (BIM) has emerged as a technology that can significantly improve safety in construction projects. BIM provides detailed information and visualizations that help identify potential hazards and develop effective mitigation strategies. However, its implementation in Indonesia is still limited to level 1 BIM, primarily involving 2D and 3D CAD drafting. To enhance 3D building visualization and safety planning, this paper proposes integrating BIM with three.js and ReactJS. Three.js is a JavaScript library that enables the creation of 3D visualizations in web browsers, while ReactJS is used to build user interfaces in web applications. By combining these technologies, interactive web applications can be developed to display 3D buildings in real-time. This allows users to easily view building designs, identify potential hazards, and make informed decisions regarding safety measures. Furthermore, the Industry Foundation Classes (IFC) file format is utilized for data exchange in the BIM environment. IFC contains building geometry information, material properties, and other relevant data, enabling collaboration among project teams using different software. This integration enhances collaboration and facilitates more informed decision-making in construction projects. The results demonstrate efficient 3D rendering of BIM models with an average response time of 0.8 seconds, as well as real-time visualization of worker positions within buildings based on sensor data.

ENVIRONMENTAL ANALYSIS ON SOFT CLAY SOIL STABILIZATION AS A SUBGRADE IN BINJAI – PANGKALAN BRANDAN TOLL ROAD PROJECT

I Made Kusuma Wiranata — 2024-05-31

Soft soil poses significant challenges in road construction projects, particularly in the Binjai - Pangkalan Brandan Toll Road, where non-uniform settlement of landfills has been observed. To address these issues and achieve the desired subgrade quality and compression, various soft soil stabilization methods have been employed, including mechanical approaches such as Prefabricated Vertical Drain (PVD) with preloading or vacuum and Pile Embankment. This study aims to evaluate the environmental impact of these three stabilization methods using the Strength, Weakness, Opportunities, and Threats (SWOT) method. Primary data was collected through interviews with experts from diverse stakeholders, including academics, planning consultants, and implementing contractors, using the purposive sampling technique. Focus Group Discussion (FGD) was conducted to develop SWOT strategies for each repair method based on environmental assessment indicators derived from literature studies. The SWOT analysis results indicate that the PVD Preloading method is the most environmentally friendly among the three methods. This is attributed to the absence of cement usage, lower electrical energy consumption, and the use of more environmentally friendly materials. Although PVD Preloading requires additional backfill for the preloading process, the impact on the environment is minimal, as the soil material used comes from the project site, and approximately 90% of the backfill is returned as road backfill after the consolidation process is complete. The analysis also reveals that the speed of the consolidation process is inversely proportional to its environmental friendliness.

TANJUNG PURA INTERCHANGE BRIDGE PILLAR ANALYSIS BASED ON SP COLOMN VALUE

Gede Suartana — 2024-05-31

The Tanjung Pura interchange overpass bridge, a critical connector road on the Trans Sumatra Toll Road, currently utilizes wall-type pillars that have limitations in seismic performance and construction efficiency. This study aims to redesign the bridge pillars from a wall-type to a portal-type configuration to improve structural safety and optimize the design. The redesign process involves several key steps, including data collection through literature review and documentation from project stakeholders, structural modeling using SAP2000 v.20 software incorporating the redesigned portal-type pillars with optimized dimensions and reinforcement arrangements, load analysis considering various load combinations based on Indonesian bridge design codes and standards, and capacity evaluation using SP Column v.7 software to assess the structural adequacy and safety of the redesigned pillars. The portal-type pillars, with dimensions of 1500 mm × 2500 mm and 50D32 main reinforcement, along with additional leg reinforcement in the plastic hinge regions, demonstrated improved seismic performance and constructability compared to the original wall-type design, with a maximum capacity ratio of 0.20 indicating sufficient reserve capacity and safety margin. The successful redesign of the Tanjung Pura interchange overpass bridge pillars highlights the potential for optimizing bridge structures to enhance safety, efficiency, and economy, serving as a valuable reference for future bridge rehabilitation and redesign projects.