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<![CDATA[SUPPLY CHAIN ANALYSIS TO REDUCE DELAYS ON GREEN BUILDING PROJECTS WITH ANALYTICAL HIERARCHY PROCESS METHOD ]]>
<![CDATA[Rossy Armyn Machfudiyanto]]>;
<![CDATA[Ammar Syahreza]]>
<![CDATA[ Jurnal Infrastruktur Vol 8 No 2 (2022): Jurnal Infrastruktur ]]>
Publisher : <![CDATA[Jurnal Infrastruktur ]]>
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DOI: 10.35814/infrastruktur.v8i2.3287
<![CDATA[In developing countries such as Indonesia with high population growth, the need for development is also increasing. However construction is responsible for adverse impacts on the environment ranging from extraction, processing and transportation of raw materials, construction, and operation of building facilities. The building sector is also the largest contributor to energy use (about 40%). Based on this, innovations emerged in the form of Green Buildings to reduce the negative impact on the environment. However, in the implementation of green buildings, obstacles are often found in the form of schedule delays, one of which is caused by activities in the supply chain. This study uses the Analytical Hierarchy Process (AHP) method to identify and analyze activities in the supply chain. It was found that the strategy in reducing delays in green building is supply chain that focuses on efficiency.]]>
<![CDATA[ASSESSMENT ANALYSIS OF THE CONDITION OF THE SEI. LALAK II BRIDGE USES FRACTURE CRITICAL MEMBER ]]>
<![CDATA[Widya Apriani]]>;
<![CDATA[Setiawan]]>;
<![CDATA[Virgo Trisep Haris]]>
<![CDATA[ Jurnal Infrastruktur Vol 8 No 2 (2022): Jurnal Infrastruktur ]]>
Publisher : <![CDATA[Jurnal Infrastruktur ]]>
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DOI: 10.35814/infrastruktur.v8i2.3609
<![CDATA[Bridge inspection plays a vital role in prevention before the occurrence of continuous damage. Sei Bridge. Lalak II is a steel truss bridge located in the Airmolek Subdistrict, Indragiri Hulu Regency, Riau Province. The purpose of this study was to analyze the condition of the damage to the elements of the Sei bridge. Lalak II in Indragiri Hulu Regency. The method used to analyze the condition of bridge damage is based on the Fracture Critical Member (FCM) method While the results of the FCM method are trusses that have the highest stress ratio in rod number 2 with a stress ratio value (0.717), rod number 7 with a stress ratio value (0.717) and rod number 33 with a stress ratio value (0.717). From this value, the condition of the truss is in the warning category, so light rehabilitation is needed, such as painting the steel frame. At the FCM screening stage, the score obtained is 25 points, then the next examination is carried out for a maximum of the next 24 months. At the FCM assessment stage, the score obtained is 104 points, then the subsequent examination will be carried out in the next 12 months. The overall condition of the Sei bridge. Lalak II required light rehabilitation to maintain the bridge in the long term.]]>
<![CDATA[ANALYSIS OF THE MOTIVATION LEVEL OF CONSTRUCTION PROJECT WORKERS DURING THE COVID-19 PANDEMIC BASED ON MASLOW'S THEORY USING THE BAYESIAN BELIEF NETWORK METHOD ]]>
<![CDATA[Mirnayani]]>;
<![CDATA[Lily Kholida]]>
<![CDATA[ Jurnal Infrastruktur Vol 8 No 2 (2022): Jurnal Infrastruktur ]]>
Publisher : <![CDATA[Jurnal Infrastruktur ]]>
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DOI: 10.35814/infrastruktur.v8i2.3752
<![CDATA[Labor productivity is a very important factor in construction because it will affect the successful implementation of a construction project. Workers (labor) are human resources who are directly involved in construction projects from beginning to end and have a major influence on management in them. Worker motivation affects the productivity of workers, while the efforts made by workers are the physical embodiment of motivation. The higher the motivation of the worker, the greater the effort he makes. Maslow's theory is the basis of the theory of human needs. The emergence of the Covid-19 pandemic has made changes to life due to the new policies in force. This research will use a quantitative approach using the Bayesian Belief Network (BBN). The results showed that the percentage of the large motivation of construction project workers at the Jakarta Internasional Stadium project during the Covid-19 pandemic was 72.90 good and 27.10 bad. These results can be used as consideration for relevant agencies to carry out alternative strategies to increase worker motivation during the Covid-19 pandemic, so that worker productivity remains high.]]>
<![CDATA[Evaluation Of Implementation Construction Safety Management Systems Of Toll Road Infrastructure Construction Project During Pandemic Covid-19 In Indonesia ]]>
<![CDATA[Rossy Armyn Machfudiyanto]]>;
<![CDATA[Ida Sahli Mubarok]]>
<![CDATA[ Jurnal Infrastruktur Vol 8 No 2 (2022): Jurnal Infrastruktur ]]>
Publisher : <![CDATA[Jurnal Infrastruktur ]]>
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DOI: 10.35814/infrastruktur.v8i2.3782
<![CDATA[The high level of development is directly proportional to the probability of accidents that may occur. In Indonesia, work accidents in the construction sector still often happened. Based on data from the Ministry of Public Works website in 2015, the construction sector gave place for 32% of the proportion of work accidents in Indonesia. This study aims to evaluate the implementation of the construction safety management system for toll road infrastructure project refers to the Minister of Public Works and Public Housing Regulation Number 10 of 2021 concerning Guidelines for Construction Safety Management Systems. This research applied a case study method-based with indepth interview and questionnaire techniques which were reviewed by descriptive analysis and statistical tests. The results of this study indicate that the implementation of the construction safety management system on the Becakayu Connection Toll Road – Wiyoto Wiyono 1 Toll Road project is in the satisfactory category. There are several indicators whose implementation is not in accordance with the PUPR Ministerial Regulation Number 10 of 2021 due to the lack of insight or knowledge regarding the SMKK implementation program. The formulation of a recommendation strategy for improving the implementation of SMKK can be done by 1) Providing education, training, and/or counseling related to SMKK 2) Compiling SMKK documents in accordance with applicable regulations 3) Strengthening SMKK inspection programs and safety patrols 4) Documenting SMKK implementation activities 5) Procurement of activities such as safety morning talk and Toolbox meeting and procurement of facilities such as K2 information boards 6) Conduct safety meeting with MP regarding construction safety policies and explain to all project stakeholders 7) Provide awards or incentives if construction safety is achieved and 8) Conduct studies more in depth related to SMKK regulations. Keywords: Construction Safety; Safety Culture; SMKK; K3.]]>
<![CDATA[PROBE VEHICLE LANE IDENTIFICATION AT SIGNALIZED INTERSECTION USING SUPPORT VECTOR MACHINE METHOD ]]>
<![CDATA[Semuel Rompis]]>
<![CDATA[ Jurnal Infrastruktur Vol 8 No 2 (2022): Jurnal Infrastruktur ]]>
Publisher : <![CDATA[Jurnal Infrastruktur ]]>
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DOI: 10.35814/infrastruktur.v8i2.3818
<![CDATA[Transportation problems in Indonesia, especially in urban areas, can be solved by applying Intelligent Transportation Systems (ITS), one of which is by using a Global Positioning System (GPS) based probe vehicle system. This system is growing because smartphones can be used as instruments for investigators' vehicles. This system provides information on the location and speed of all investigator vehicles every second, making it possible to estimate the real time traffic condition on a road segment passed by the probe vehicle. The implementation of this system in the city of Manado can help improve traffic conditions because so many motorists carry smartphones while driving. However, the problem is that the GPS on this smartphone has a low accuracy of 3 to 15 meters, so this GPS data cannot be used to solve transportation problems at the micro level such as at intersections. The purpose of this study was to obtain a method for identifying probe vehicle lanes through GPS data from smartphones. The steps in achieving the research goal are 1) building a microscopic transportation model using software to obtain data 2) building a data processing algorithm for vehicle lane identification using traffic flow theory and machine learning methods which in this case is Support Vector Machine, and 3) perform model validation. The results showed that the individual queue shock wave from each probe vehicle could be used to identify the lane of the probe vehicle. This study also confirms that the Support Vector Machine method can be used to predict the lane position of the probe vehicle.]]>
<![CDATA[EFFECT OF USING DIFFERENT TYPES OF ADDITIVES AGAINST THE COMPRESSIVE STRENGTH OF CEMENT PASTE ]]>
<![CDATA[Jonbi]]>;
<![CDATA[Wita Meutia]]>;
<![CDATA[Nuryani Tinumbia]]>;
<![CDATA[Farhan Rafliansyah]]>
<![CDATA[ Jurnal Infrastruktur Vol 8 No 2 (2022): Jurnal Infrastruktur ]]>
Publisher : <![CDATA[Jurnal Infrastruktur ]]>
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DOI: 10.35814/infrastruktur.v8i2.3857
<![CDATA[Cement as the main construction material is used for concrete, mortar and cement paste. Some problems with the use of cement are caused by shrinkage, cracking, so that these problems can reduce the compressive strength. This study analyzed the use of additives in overcome the weakness of cement paste. There are three types of additives used, namely, Intraplast Z, Cebex 100 and J-Additive. The percentages of additive use are 0.36%, 0.48%, 0.6% and 0.72% by weight of cement. The test object is a cube measuring 50 x 50 x 50 mm. The compressive strength test on cement paste was carried out at the age of 3, 7, 14 and 28 days. The results showed that for Intraplast Z and Cebex 100 the optimum percentage was 0.36% which resulted in an increase in compressive strength of 18% and 28%, respectively. As for the J-additive, there was an increase of 50% at a percentage of 0.36%. The benefits of the research resulted in the optimal percentage so that the use of additives became more efficient.]]>
<![CDATA[COMPARISON OF COST AND TIME OF FLOOR SLAB WORKS ON CONVENTIONAL AND BUBBLE DECK SLAB METHODS ]]>
<![CDATA[Rayhan Mahesa Kurnia]]>;
<![CDATA[Azaria Andreas]]>;
<![CDATA[Nuryani Tinumbia]]>
<![CDATA[ Jurnal Infrastruktur Vol 8 No 2 (2022): Jurnal Infrastruktur ]]>
Publisher : <![CDATA[Jurnal Infrastruktur ]]>
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DOI: 10.35814/infrastruktur.v8i2.4031
<![CDATA[Floor slab is one of the most important structure members in a building and one of the largest members consuming concrete. Conventional floor slab has been used for years and has disadvantages that can be improved with alternate methods. There is lot of alternative methods that have been used in the construction world such as precast slab, half precast, hollow core slab, and many more. One of the alternative methods is bubble deck slab. The spherical hollow reinforced concrete slab has been patented named Bubble Deck Slab is a method that removes concrete from the center part of a slab which doesn't do any structure functional, so it can reduce the dead load significantly. High-density polyethylene hollow sphere is used to replace the ineffective part of the slab, so it reduces the dead load and increases efficiency. With the HDPE ball substitution, there will be differences in cost and time compared to the conventional method. This research is taking the case research in Central Control Building of Power Plant Muara Tawar Project with quantitative method approach. The analysis is calculating the budget plan and scheduling with Microsoft Project. After the analysis, there is differences in cost and time between the methods. The bubble deck slab method has the advantages which have the cheaper cost of IDR. 142,128,506.44 or 14,442% and 1 day or 3,846% faster compared to the conventional. Even so, the conventional method is still the first choice because the very common methods in Indonesia and the ease of execution.]]>
<![CDATA[QUICK RESPONSE USING FORENSIC ENGINEERING ON STRUCTURAL BUILDING DAMAGE ]]>
<![CDATA[Jonbi Jonbi]]>
<![CDATA[ Jurnal Infrastruktur Vol 8 No 2 (2022): Jurnal Infrastruktur ]]>
Publisher : <![CDATA[Jurnal Infrastruktur ]]>
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DOI: 10.35814/infrastruktur.v8i2.4069
<![CDATA[Quick response and emergency when buildings are damaged by earthquakes and other situations to determine the causes and ensure that the structure of the building can still be used safely. The additional building of one the heritage buildings in Jakarta currently being used as an office was observed to have suffered damages in the form of torsion of the beams, cracks in beams and walls, as well as the subsidence in floors. Therefore, this research was conducted to investigate these sudden and quick damages using forensic engineering through visual observations, Ultrasonic Pulse Velocity testing, Profometer, Cone Penetration Test, Ground Penetrating Radar, and structural analysis. The visual observation results showed the existence of cracks in the beams, walls, and columns as well as a maximum deformation of 94 mm, especially in the dilation area or the border between the main building and the additional building around the lobby and the floors above it. Moreover, the improper structural system caused the damage as observed with one column having an ultimate axial load of 114 tons while the surrounding columns were only 25-50% of this value. The quick response provided was observed to be the addition of steel columns, beam strengthening with FRP, and zoning of usable space in buildings. The quick response also showed the main damage was caused by the dewatering work of the office construction project near the building and this can be used by the building owner as the basis to submit a claim to the responsible party.]]>
<![CDATA[EARTHQUAKE-RESISTANT HIGH RISE STEEL BUILDING STRUCTURE ANALYSIS WITH CHEVRON CONCENTRICALLY BRACE FRAME SYSTEM ]]>
<![CDATA[Andina Prima Putri]]>;
<![CDATA[Yudha Buana Putra]]>;
<![CDATA[Christianto Credidi Septino Khala]]>;
<![CDATA[Basyaruddin]]>
<![CDATA[ Jurnal Infrastruktur Vol 9 No 1 (2023): Jurnal Infrastruktur ]]>
Publisher : <![CDATA[Jurnal Infrastruktur ]]>
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DOI: 10.35814/infrastruktur.v9i1.3726
<![CDATA[In construction world, there’re several changes with times. The cause of changes is connected to building construction cases such as the structure failing to bear the load. Earthquake and tsunami load have potentials to make building structure become a failure. Indonesia experienced a lot of earthquake and tsunami, because Indonesia is located on three big plates encounters which Eurasia, Indo-Australia, and Pacific Plate. Banten province is one of province that has experienced earthquake and tsunami. In record of 10 years, Banten has experienced 3 earthquakes and 1 tsunami. Because of that, there must be a study on the design of steel structure buildings in Banten that resist earthquake and tsunami. Purpose of the research is to get structure value of building design. Design was done by numeric analysist method based on updated Indonesian National Standard about steel building planning. The result of study are, the biggest beam dimension is WF 300x200x9x12. The biggest column dimension is KC 700x300x13x24. Using adhesive plate with 14 cm thickness. Bracing dimension is WF 350x350x12x19. Beam connection with the most bolts has 3 M12 bolts and weld thickness 6 mm. Column connection between column with same dimension is planned with the most bolts has 16 M24 bolts. Column connection between two different column dimension is planned with the most bolts has 6 M24 bolts and weld thickness 8 mm. The biggest plate dimension is 90x90 cm. Brace connection is planned to have 6 M24 bolts and weld thickness 10 mm. Bottom structure stand with the biggest pile cap with seven 400 mm spun piles. Dimension of the biggest pile cap is planned to be 2700x2700x1000 mm with bar D25-300 on both x and y directions. The biggest pedestal column is planned to be 1100x1100x1000 mm with 24 D25 longitudinal bars and ϕ13-200 transverse bar. The Biggest tie beam is planned to be 400x600 mm in dimension with 4 D22 longitudinal bars and ϕ10-200.]]>
<![CDATA[ANALYSIS OF COAL MINING LAND USE CHANGES WITH THE DRIVING, PRESSURE, STATE, IMPACT, RESPONSE (DPSIR) APPROACH IN DAMAI DISTRICT, KUTAI BARAT REGENCY, INDONESIA ]]>
<![CDATA[yunianto setiawan]]>;
<![CDATA[Dwi Ermawati Rahayu]]>;
<![CDATA[Edgar Rahman]]>
<![CDATA[ Jurnal Infrastruktur Vol 9 No 1 (2023): Jurnal Infrastruktur ]]>
Publisher : <![CDATA[Jurnal Infrastruktur ]]>
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DOI: 10.35814/infrastruktur.v9i1.3845
<![CDATA[West Kutai Regency, especially in Damai District, is one of the regions in Indonesia that has great potential for coal natural resources. Coal mining certainly requires sufficient space for its mining activities, therefore it is the regulation of space that will later regulate and limit the excessive use of land. This study uses the DPSIR method where the DPSIR component requires a response from the community. The criteria for resource persons are competent and have influence in making decisions regarding something related to environmental issues in Damai District. Furthermore, the selected resource persons must also be those who are willing to be interviewed. The driving of changes in the use of coal mining land in Damai District is due to demographic factors as well as economic growth. The pressure that occurs is in the form of land clearing and expansion of mining land, thereby reducing existing land resources and increasing mining activities, which in turn increases other environmental pressures. Other pressures, such as increasing waste disposal activities, increase the volume of waste due to the increase in the number of coal mining areas. The latest conditions, namely the results of monitoring the condition of the water and air are still quite good, it's just that in the waters of the Kedang Pahu River there are findings of iron content that still exceeds the threshold. The impact of the increase in mining land in the form of reduced land resources, increased potential for erosion that can cause flooding, reduced environmental quality and interfere]]>
