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Construction and Material Journal
Published by Politeknik Negeri Jakarta
ISSN : -     EISSN : 26559625     DOI : https://doi.org/10.32722/cmj
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Jurnal Construction And Material adalah jurnal Teknik Sipil yang mencakup bidang keahlian Dasar Teknik, Struktur, Material, Manajemen Konstruksi, Tata Laksana, Transportasi, Sumber Daya Air dan Lingkungan, Geoteknik, Pengukuran dan Jalan Raya. Jurnal ini diperuntukkan bagi mahasiswa, pengajar, dan masyarakat luas yang ingin mempublikasikan karya ilmiahnya dan belum pernah dipublikasikan dimanapun. Jurnal ini terbit secara berkala, tiga kali dalam setahun (Maret, Juli, dan November). - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Construction And Material Journal is one of journals in the discipline of Civil Engineering from vocational school, covering basic of Civil Engineering; Structure, Material Technology, Construction Methods, Construction Management, Water Resources and Environmental Engineering, Geotechnical Engineering, Surveying and Highway Engineering. This journal is intended for engineering student, lecturer, professional and engineering assosiation member in civil works, and other community in Civil Engineering. The journal offers the Authors to publish their paper works in the Civil Engineering from their research result, work experience, etc and never published it in elsewhere. The journal issues would be published in three times a year (March, July and November). - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 210 Documents
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PERENCANAAN FONDASI TIANG PANCANG PADA PROYEK TOWER 2 ARANDRA RESIDENCE Zulhady Zuhri; Istiatun Istiatun
Construction and Material Journal Vol. 2 No. 2 (2020): Construction and Material Journal Vol. 2 No. 2 Juli 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i2.3090

Abstract

The pile foundation is an sub-structure to load from the upper structure. Ultimate load carrying-capacity (qu) will be transfered into a hard soil layer by using a deep foundation system. To design the pile foundation, several methods are needed to obtain different bearing capacity values. This study determines the planned pile depth, pile dimensions and pile cap. The purpose of this final project is to plan the pile foundation for the Arandra Residance 2 tower construction project located in Cempaka Putih, Central Jakarta. The method used is the method of Meyerhof, U.S Army Corp, Tomlinson, α and λ. In addition, the calculation of reinforcement, immediate settlement and settlement of primary consolidation was also carried out. The results of the calculation of bearing capacity foundation are different values. The Meyerhof Qu method is 9846,786 kN, the U.S Army Corp method Qu = 11065.11 kN, the Tomlinson Qu method = 10409.68 kN, the method α = 9558.95 kN, and the method λ Qu = 10066.37 kN. Whereas according to Broms, the lateral bearing capacity is 10845 kN. In planning used reinforcement D25-270. Immediate settlement is 50.3 mm, primary consolidation settlement is 9.89 mm, and time rate of consolidation during 1.75 months.  Keywords: Foundation, Driven Pile, Bearing Capacity, Settlement, Primary Consolidation.
PEMBANDINGAN SIMPANGAN DAN CAPACITY RATIO PADA PEMODELAN GEDUNG DENGAN DAN TANPA INITIAL SWAY IMPERFECTION Retno Ajeng Zulia Octavia; Tri Widya Swastika
Construction and Material Journal Vol. 2 No. 2 (2020): Construction and Material Journal Vol. 2 No. 2 Juli 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i2.3091

Abstract

Initial Sway Imperfection is one of the stability requirements for structural steel design structure, as explained in SNI 1729-2015 the specification of steel building. It was also mentioned that initial sway imperfection can be simulated by giving notional load on the structure of steel building model which is 0,002 of the gravity load on each floor. However, consultants and practitioners never apply initial sway imperfection in the calculation of stability, even though it is very important in buckling prediction, especially in column section. This research was compared drift and capacity ratio in column section, with and without initial sway imperfection using 3D model of 7 floors building. The method that we used is DAM (Direct Analysis Method). In the first model without notional load and the second model by applying notional load. The results shows that the biggest drift value in the X direction increase from 0,2 mm to 135,2 mm, and in the Y direction increase from 0,1 mm to 55,4 mm, the capacity ratio increase from 0,04% to 16,73%. The drift value with initial sway imperfection exceeds the limits allowed by SNI 1726-2012, therefore it needs to enlarge column section. At the same time, the capacity ratio with initial sway imperfection is within the limit which is less than 1. Keywords: Initial Sway Imperfection, Notional Load, Deviation, Capacity Ratio.
MODIFIKASI STRUKTUR GEDUNG DENGAN BETON PRACETAK PADA APARTEMEN THE CONEXIO Adita Devania; Andrias Rudi Hermawan
Construction and Material Journal Vol. 2 No. 2 (2020): Construction and Material Journal Vol. 2 No. 2 Juli 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i2.3092

Abstract

The Conexio Appartements in actual condition are designed using conventional reinforced concrete method and does not have good quality. While in the project also often afected by the weather. The use of precast concrete are having some excellence of them are not affected by the weather, well maintained quality, and earthquake resistant. The connection between the precast elements play an important role in precast buildings to make the buildings resistant to earthquake. This modification is intended to created earthquake resistant precast building  according to SNI 2847:2013 with good quality control. In this study, the building will be modified into 8 floors precast building as planned and reviewed which will be analyzed by ETABS. From the results of the modification according to SNI 1726:2012 and SNI 2847:2013 we obtained, main beam dimension 40x60cm, secondary beam 35x55 cm, column dimension 65x65 cm, overtopping 6 cm for slab and using Splice sleeve grout for column to column connection, lap splices 500mm for beam-column connection, and 30x40cm for concrete consol dimension. Keywords : Precast, Splice Sleeve, Wet Connection.
KUALITAS DAN KENYAMANAN UDARA PADA GEDUNG PERKANTORAN BERTINGKAT RENDAH DENGAN STUDI KASUS GEDUNG PERKANTORAN PT. X DI JAKARTA Putri Nur Ratnasari; Dyah Nurwidyaningrum
Construction and Material Journal Vol. 2 No. 2 (2020): Construction and Material Journal Vol. 2 No. 2 Juli 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i2.3093

Abstract

Green Building Council Indonesia (GBCI) publishes an assessment device called Greenship to be used as a benchmark in planning to maintain green buildings. PT. Medtek one of the low-rise office buildings in Jakarta that is an area with moderate air pollution level based on air Pollution Standard Index (ISPU) which has no effect on human or animal health but influential on sensitive plants and aesthetic values. This research aimed to know the criteria points obtained by PT. Medtek,  influence of air quality, and building conditions in the user of the building.  Measurements of indoor air health, comfort and questionnaire data collection is done indoors when user’s activity in an office building is underway. The method used is a comparison method by comparing the results of field measurements with Greenship Rating Tools Existing Building version 1.1. The criteria achieved by PT. Medtek are a non-smoking campaign, outside air introduction, cigarette smoke control, and visual comfort. Criterion points earned 12 out of 18 scoring points are reviewed or meet 66.67% of the total assessment aspect of quality and comfort of indoor air. Keywords: Green Building, Greenship, Air Pollution, Air Quality, Low-Rise Office.
KINERJA BANGUNAN BERTINGKAT DI KAWASAN PESISIR DALAM MENUNJANG KEMARITIMAN DAN PARIWISATA DI BANYUWANGI M. Shofi'ul Amin; Mirza Ghulam; Dadang Dwi P; Erwin E
Construction and Material Journal Vol. 2 No. 2 (2020): Construction and Material Journal Vol. 2 No. 2 Juli 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i2.3094

Abstract

Banyuwangi is an area that belongs to zone 4 (SNI 03-1726-2002) and areas that are prone to earthquakes and are classified as moderate (SNI 03-1726-2012 and 2019). Other than, Banyuwangi also has the longest coastline on the island of Java, so buildings located in coastal areas have different air pressure that can cause very large winds to blow. So that in planning a building not only dead load and live load that needs to be planned but lateral loads also need to be planned. The survey results contained a tourism support building structure and are located very close to the coastal area of the Banyuwangi Dialoog Hotel. So the focus of this research is the construction of the structure. As for what is analyzed is the value of internal forces and deviations to the lateral loads of earthquake SNI 03-1726-2019 and wind loads based on PPIUG 1983 using the help of structural computer applications. The method used in earthquake load analysis is the spectrum response method. The results of the analysis of the value of the maximum force due to earthquake loads and wind loads are most influential on the column elements that cause inter-floor deviation. The deviation value is reviewed in the building service boundary performance, namely in the x and y directions respectively 10.89 mm and 15.75 mm. When viewed from the service threshold value of 87.5 mm, the structure is classified as safe from the influence of the lateral load of the planned earthquake and wind load. So that the building is feasible as a coastal building that is quite safe for commercial buildings and is able to become a tourist destination because it is so close to the sea. Keywords: Coastal, Lateral Load, Drift, Tourism.
PERENCANAAN PERSEDIAAN MATERIAL DENGAN PEMILIHAN METODE LOT SIZING YANG OPTIMAL PADA BATCHINGPLANT PT. X Nuh Akbar; A'isyah Salimah
Construction and Material Journal Vol. 2 No. 2 (2020): Construction and Material Journal Vol. 2 No. 2 Juli 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i2.3095

Abstract

Inventory is one of the asset / investment in a company that can be either raw materials, work in process, and finished goods, the primary function is to ensure the smooth supply of goods demand mechanism according to the needs of customers/consumers. Companies often have problems of inventory, supplies of which the company a shortage of inventory which could disrupt the smooth implementation of production, so that these problems could make the company down. Therefore, inventory planning is needed to obtain minimum inventory costs. Material requirements planning is done using with the Lot sizing, using MRP method that begins with forecasting the master production schedule for the coming period of one year. Based on the pattern of data, forecasting techniques used trend line analysis model and exponential smoothing with trend adjustment model. By finding out the material requirement data, product structure and bill of materials, lead time and inventory costs for materials, we could make a comparison of the cost of inventory planning by using 2 lot sizing techniques, there are fixed order quantity (FOQ) and period order quantity (POQ). This method is applied in PT. X to supply raw materials ready mix concrete, and of the both methods were chosen methods that produce the most optimum cost. Based on the analysis, period order quantity (POQ) technique result the minimum total inventory cost is IDR. 112,705,080.96. Keywords : Inventory, Forecasting, MRP, Lot Sizing, Optimum Inventory Cost.
OPTIMASI STRUKTUR HELIDECK DENGAN VARIASI BEBAN HELIKOPTER Anwar Anwar; Reza Bachmid
Construction and Material Journal Vol. 2 No. 3 (2020): Construction and Material Journal Vol. 2 No. 3 November 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i3.3408

Abstract

Helideck is a helicopter landing field located on ships and offshore buildings. The helideck structure must have the strength to withstand the loads of the helicopter landing. The purpose of this study is to determine the maximum strength of the helideck structure. Helideck structure strength calculations used SACS structural strength software by performing a running analysis adopting the finite element method. The maximum calculation results value that the helideck structure can hold is the type of helicopter with a maximum weight of 155 kN with a working stress of 37,80 N/mm2 and an interaction value of (IR) 1. The helideck structure will encounter a yield stress or fracture with an IR value > 1. Keywords : Structure Strength, Helideck, Helicopter Load.
INITIAL GEOMETRIC IMPERFECTIONS AKIBAT TEKUK SINGLE CURVATURE MOMENT PADA BALOK BAJA SEDERHANA Erlina Yanuarini; Yanuar Setiawan; Tri Widya Swastika
Construction and Material Journal Vol. 2 No. 3 (2020): Construction and Material Journal Vol. 2 No. 3 November 2020
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v2i3.3471

Abstract

Steel beams are susceptible to initial geometric imperfections due to improper fabrication and installation processes. Consequently, long steel beams without stiffening are prone to bending due to lateral torsion. The purpose of this study is to determine the effect of variations in the initial geometric imperfections of Single Curvature-Moment (SCM) on the moment, total displacement, displacement in the X direction (U1), displacement in the Y direction (U2), and twist. This study used an RH profile with a compact flange and web. The boundary condition used is a simple beam with an initial geometric imperfection due to single moment-curvature (SCM) bending. The variations used are the initial geometric imperfections values of SCM 0 mm (without initial geometric imperfections), SR5 (with initial geometric imperfections of 5 mm), and SR10 (with initial geometric imperfections of 10 mm). Initial geometric imperfections of SCM in steel beam decreased moment capacities up to more than 2% in elastic conditions and 12% in plastic states. This SR10 beam is also a beam that has a displacement of the X-axis (U1 = -203,960 mm), a displacement of the Y-axis (U2 = -255,615 mm), and the most significant twist (28,179 °). Keywords: Buckle, Initial Geometric Imperfections, Single Curvature-Moment.
THE PREVENTIVE PRIORITY PLAN BASED ON THE CAUSALITY ANALYSIS OF THE CONSTRUCTION ACCIDENT Adwitya Bhaskara; Cahyo Dita Saputro; Abul Fida Ismaili; Nia Agustin; Syawaluddin Alim
Construction and Material Journal Vol. 3 No. 2 (2021): Construction and Material Journal Vol. 3 No. 2 Juli 2021
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v3i2.3493

Abstract

The case of construction accident that occurred mid-2019 and seized a lot of attention in the surrounding community is a construction accident on the implementation of underpass construction project located in Yogyakarta. The underpass excavation wall in this project collapsed then led two vehicles are fall. Although the types of accidents are almost identical to each project, it does not mean that the same reason causes the accidents. Various methods can carry out efforts to prevent work accidents, one of which is with assessment method and risk analysis using Analytical Hierarchy Process (AHP) which sub indicators are determined using Fault Tree Analysis (FTA). The method conducted with a review in the site by referring to Ministerial Regulation No. 21 year 2019 about the SMKK (Construction Safety Management System) guidelines. This research was conducted to identify the factors and indicators of management of thesupervisory consultant and the contractor. They had a significant influence and contribution to the implementation of the Yogyakarta Kentungan Underpass construction project. The results of this early-stage study served into two outcomes. First, the accuracy of the implementation of construction safety management system based on the assessment of the contractor is 85.938% and the percentage level of accuracy of the supervisory consultant is 97.29%. Both percentages fall into the category of Satisfactory Implementation Assessment because the valuation range is included between 85% to 100%. Second, after analyzing the risk using AHP method, the indicator that is used as a reference priority for the construction safety system of underpass construction projects and has the highest risk level that can causean underpass project construction accident from the contractor's point of view is the sub-indicator of supporting facilities and infrastructure with a risk level value of 0.042 whereas from the supervisory consultant’ perspective is the sub-indicator about to measuring the dimensions of the road building installed in the site with a risk level value of 0.052. Keywords: Assessment, FTA, Causality, Construction Accident, AHP.
PERBANDINGAN METODE KONVENSIONAL DENGAN BIM TERHADAP EFISIENSI BIAYA, MUTU, WAKTU Rizal Maulana Rizqy; Nunung Martina; Hari Purwanto
Construction and Material Journal Vol. 3 No. 1 (2021): Construction and Material Journal Vol. 3 No. 1 Maret 2021
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v3i1.3506

Abstract

The construction field in Indonesia has been developing briskly. It can be proved by the discovery of the new method in the construction field, the Building Information Modelling (BIM) method. This BIM method is claimed to help finish the work more effective and less cost compare using the previous methods. It is because each application should be made manually and separately. Unlike the conventional method, the BIM method has the applications integrated into one, so it can accelerate the work progress and minimalize human resources. This research discusses the contrast of the construction planning process, especially when making the work method, and shop drawing, which reviewed from cost, quality, and time aspect. This research also examines the advantages and disadvantages of using the BIM method because it is categorized as a new method. The questionnaire and the interview method are used to collect the data. This research subject is the drafters and engineers already experienced in the construction field by applying the BIM method. The case of this study is Toll Road Jakarta – Cikampek II Selatan (Paket 3), with comparing the cost and time efficiency between conventional and BIM methods. The results show that the work will be done 43.82% faster using the BIM method than the conventional one. However, the required cost will be more expensive by using the BIM method because it will be allocated to invest in the software license. Keywords: Cost, Quality, and Time; Building Information Modelling (BIM); Conventional Methods.  

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