Browsing by Author "Setiawan, Asep"

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    ANALISIS METODE PERAMALAN PERMINTAAN DI PT AGRONESIA DIVISI INDUSTRI ES SARIPETOJO BANDUNG
    (Program Studi Teknik Industri S1 Fakultas Teknik Universitas Widyatama, 2019) Setiawan, Asep
    PT Agronesia Divisi Industri Es Saripetojo Bandung adalah perusahaan yang bergerak di industri pembuatan es yang layak konsumsi. Produk yang diproduksi di perusahaan ini adalah es balok, tube/kristal dan serut. Perusahaan yang beralamat di jalan Kebon Sirih No 18 Bandung ini memiliki suatu pemasalahan yaitu angka sisa penjualan produk es kristal yang sangat tinggi sehingga terjadi proses pengemasan ulang yang tinggi juga. Setidaknya dalam periode 36 bulan ke belakang rata-rata pengemasan ulang produk yaitu 19% dari jumlah sisa hasil penjualan, oleh karena itu sangat dibutuhkan metode peramalan yang efektif untuk mengurangi tingginya pengemasan ulang produk es kristal. Metode peramalan permintaan yang digunakan dalam penelitian ini adalah metode Trend Linear, metode Brown, metode DMA dan metode Holt. Pemilihan metode yang paling efektif dilakukan dengan memilih nilai error tekecil, Metode DMA (3*3) memiliki nilai error terkecil, yaitu dengan nilai MSE sebesar 20.690.579, MASE sebesar 3.143, dan MAPE sebesar 9,771. Untuk nilai akurasi digunakan tracking signal metode DMA (3*3) dapat dikatakan baik karena tidak melewati BKA dan BKB. Selanjutnya, dilakukan perbandingan sebelum dan sesudah menggunakan metode peramalan. Pengemasan ulang dengan menggunakan metode DMA (3*3) memiliki nilai rata-rata 5% pengemasan ulang dari jumlah sisa penjualan produk es kristal. Nilai tersebut lebih efektif dibandingkan dengan nilai rata-rata pengemasan ulang yang terjadi di perusahaan yaitu dengan 7%.
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    ANALYSIS OF BASIC SOIL SUPPORT BASED ON FIELD CBR AND CBR LABORATORY FOR ROAD REHABILITATION LINGKAR KARAWANG, WEST JAVA
    (Solid State Technology Volume: 63 Issue: 3, 2020) Setiawan, Asep; Akbar, Sandy Radhitya; Agustian, Yanyan
    Bearing capacity and density level are factors that affect the stability of the subgrade, therefore it is necessary to test the bearing capacity and soil density to be used as subgrade whether it meets the required conditions. This needs to be done to avoid the instability of the pavement layer which can disturb comfort and even endanger road users and the surrounding community. pavement. The method used was to determine the bearing capacity of the subgrade based on the CBR of the field with the DCP tool and to know the carrying capacity of the subgrade stability based on the CBR of the submerged laboratory. From the research results, it was found that the soil in the optimum moisture content condition, the more compacted it will increase the CBR (carrying capacity). In the CBR test in the field using the DCP tool, it was found that the CBR segment was 8.16%. While the subgrade bearing capacity obtained based on the correlation graph between the subgrade bearing capacity and CBR is 5.7 cm2. So the type of soil in this test MH (clay silt / high plasticity silt) is classified in the classification of good soil / very good soil.
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    ANALYSIS OF CONTROL OF COSTS AND TIME WITH EARNED VALUE METHOD ON ROAD MAINTENANCE PROJECTS IN PALMERAH DISTRICT, WEST JAKARTA
    (Horizon Research Publishing, 2019) Radhitya Akbar, Sandy; Setiawan, Asep; Istambul, M. Rozahi; Siddiq, Raden Herdian Bayu Ash
    Control in a construction project generally involves three main aspects, namely: cost, time and human resources. This study uses Network Planning analysis as a control function with the Critical Path Method (CPM) method in calculating the difference in cost and time needed to complete the work with a planned budget and schedule. This study also tried to implement an integrated control function, namely the Earned Value Method for a construction project. Based on the analysis and calculation in the 8th week (eight) of the total duration of the project, the analysis produces CPI value = 1.06 which shows that the performance of contractor's expenditure costs is more efficient than the planned budget. The description of the final condition of the project also shows that there is a residual budget value of Rp 321,642,608.01 or 5.55% of the total value of the overall project cost budget or Budgeted At Completion (BAC) which is an advantage for the contractor. The analysis also produces SPI value = 0.94 which means that the time performance index is of good value but the execution of the work is a little slower than the overall planned schedule.
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    ANALYSIS OF FLOOD DISCHARGE IN WATERSHEDS AND THEIR HANDLING (Case Study: Cibeureum River, Bandung City, West Java)
    (International Journal of Psychosocial Rehabilitation, Vol.24, Issue 02, 2020) Setiawan, Asep; Agustian, Yanyan; Widyanto, Bambang Eko
    To overcome the overflow of water from the Cibeureum river in Bandung, a detailed plan is needed regarding the hydrological aspects, the environment and the ideal capacity of the river's cross section so that an ideal and applicative and appropriate handling of the flood problem can be planned. This research was conducted to evaluate the flood discharge of the Cibeureum river and to plan river handling that is efficient, effective and appropriate and able to deal with the problems of flooding caused by overflowing river water. From the results of the study it was concluded that the Flood Discharge Plan with the Period of Return Q25 obtained a Flood Discharge of 61.62 ݉3 / sec by using the Snyder method. From the analysis of the existing river capacity compared with the flood discharge plan Q25 it is known that there is overtopping at several Cibeureum river stations / segments with a maximum height of 2 meters above the river embankment. Normalization and Restoration of River needs to be done or returning to its original condition and function refers to PP 38/2011 concerning Rivers, especially in locations that have overtopping, among others, making new embankments, adding height of existing embankments and river normalization (sediment dredging).
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    DETERMINATION OF PRIORITY SCALE PROVINCIAL ROAD HANDLING IN PURWAKARTA DISTRICT, WEST JAVA
    (International Journal of Engineering & Technology, 2019) Setiawan, Asep; Barnadi, Yudi; Hirary, Marisa; Martoni
    The provincial roads maintenance and repair are often constrained by limited budgets, so that the road management priority is generally determined by policy factors, which often cause roads treatment disparity. The purpose of this study was to determine the criteria and sub-criteria, the weights of criteria and sub-criteria, as well as develop a mathematical equation in order to determine to roads handling priority in the area of Purwakarta, West Java. The Delphi and Cut Off Point methods were applied to determine the criteria, which result in three criteria selected i.e. road condition, traffic volume and economic factors respectively. Afterward, the Analytical Hierarchy Process was used to determine the weighting factors for the criteria and sub-criteria. The results for the criteria weights were as follows: the roads conditions had a weighting factor of 67.7%, the traffic volume of 18.3% and the economy of 13.0%. Based on the criteria and subcriteria weight, a mathematical equation was developed to define the handling priority of roads in Purwakarta.
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    EFFECT OF WORK SAFETY AND HEALTH KNOWLEDGE ON CONSTRUCTION WORKERS IN CAWANG-TOMANG CENGKARENG TOLL ROAD PROJECTS
    (Horizon Research Publishing, 2019) Setiawan, Asep; Akbar, Sandy Radhitya; Istambul, Muhammad Rozahi; Agustian, Yanyan; Saudi, Mohd Haizam Bin Mohd
    Safety at the location of road works is an important part that is often overlooked in the construction and maintenance of roads. Management of the safety of the road work location is the responsibility of the road manager. In general, knowledge about Occupational Health and Safety (OSH) is very broad, but there are several OHS components that are considered important to be used as a benchmark for understanding OSH. These components are K3 Definition and Initiation, K3 Management System (SMK3), Personal Protective Equipment (PPE), K3 Facilities and Infrastructure, OHS Risk. Research on the influence of occupational safety and health knowledge on occupational health on construction worker behavior was carried out to determine the effect of K3 knowledge variables together on the behavior of construction workers. And to know the effect of K3 knowledge variables partially on the behavior of construction workers. From the results of the study it can be concluded that there is a relationship or a low level of correlation between K3 Knowledge and Workers' Behavior while the value of the Determination Coefficient (adjusted r square) is 0.033 which means only 3.3% of K3 Knowledge aspects that affect Construction Worker Behavior and the remaining 96.7% is influenced by other variables. Based on the results of the T-test calculation using the method of calculation of Multiple Linear Regression the value of t count
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    ESTIMATION AND CONTROLLING OF EXCAVATION WALL DEFORMATION USING ELASTO-PLASTIC CALCULATION WITH NONLINEAR GROUND CONSIDERATIONS
    (International Journal of Psychosocial Rehabilitation, Vol. 24, Issue 2, 2020) Agustian, Yanyan; Setiawan, Asep; AshSiddiq, Raden Herdian Bayu
    In the excavation work, the calculation of lateral pressure is very important, because it concerns the safety and smoothness of construction work. In fact, in the field the calculation of the movement of the retaining wall is very complex. This is because the soil has mechanical properties that are not linear, so it requires calculation in other ways, which also takes into account the nonlinearity of the soil and the spring properties of the soil and retaining wall itself. In the case study of this paper outlines the calculation of the nature of the soil and the retaining wall in order to estimate and evaluate the movement of the retaining wall during excavation work. The results of calculations show there is a good correlation between the results of calculations and the results of monitoring the movement in the field. So that this method can be used for similar calculations in excavation works.
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    EVALUATION OF PERFORMANCE NON-SIGNAL INTERSECTION ON TELEKOMUNIKASI ROAD INTERSECTION - TERUSAN BUAH BATU ROAD, BANDUNG - WEST JAVA
    (Horizon Research Publishing, 2019) Setiawan, Asep
    Evaluation of performance non-signal intersection on Telekomunikasi Road Intersection – Terusan Buah Batu Road is carried out by considering the geometric conditions of the road, traffic volume, side barriers, and environmental conditions around the intersection. Primary data and secondary data were analyzed by referring to the Indonesian Road Capacity Manual Method (MKJI 1997). From the results of the study, it was found that on Wednesday at 15:20 – 16:20, the maximum capacity value of 9,326/hours exceeded the base capacity of type 324 crossing (Co = 3,200 pcu / hour). The highest degree of saturation (DS) occurs on Monday at 6:20 - 7:20, which is 0.86. This means that the service level value is in class E (0.85 - 1.00). Namely, unstable traffic flow, solid vehicles, stagnant traffic and intersection volume higher are than its capacity, so that crossing conditions require handling. From the data above, it is known that the Telekomunikasi Road intersection - Terusan Buah Batu Road is not feasible to accommodate traffic flows and it needs to be handled by making stop lines, road signs as vehicle lane separators and warning signs, danger signs or by installing traffic signal lights.
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    THE INFLUENCE OF SLACK LIME TO CLAY TOWARDS OPTIMUM MOISTURE CONTENT (OMC) AND MAXIMUM DRY DENSITY (MDD)
    (jurnal ilmiah teknologi informasi terapan, 2019) Widyanto, Bambang Eko; Agustian, Yanyan; Setiawan, Asep
    Peningkatan populasi di Indonesia khususnya pada wilayah Jawa barat telah mengakibatkan perubahan yang cukup signifikan pada bidang tata guna lahan. Area vegetasi yang hijau telah berubah menjadi area-area perumahan, gunung kapur telah ditambang dan hal-hal tersebut mengakibatkan bencana seperti banjir dan longsor pada area yang curam. Penyebab terjadinya longsoran adalah dikarenakan berat tanah lebih berat dari tahanan tanah itu sendiri. Salah satu penyebab hal tersebut adalah tinggi nya limpasan yang terjadi pada daerah hulu DAS dan kemampuan tanah untuk menyerap air. Tanah pada lahan yang digunakan untuk perumahan atau pun pada area yang curam harus lah dipersiapkan pada kondisi maximum dry density (MDD) dan Optimum Moisture Content (OMC) agar bisa menghasilkan kuat geser yang optimum dan dapat menghindarkan potensi terjadinya longsor. Kondisi tanah pada area hulu umum nya terdiri dari kondis lempung yang berasal dari pelapukan batuan dan partikel lain nya. Lempung memiliki pori-pori yang cukup kecil dan cenderung tidak lulus air hingga dapat dijadikan inti bendungan. Hal tersebut mengkibatkan perlu nya analisa untuk membuat campuran komponen yang dapat dikerjakan dan juga dapat membantu lempung untuk meningkatkan pori-pori tanah nya juga mengurangi berat tanah tersebut. Penelitian ini terdiri dari serangkaian pengujian yang terdiri dari beberapa persentasi lempung (CL) dan kapur padam (SL), persentasi nya adalah 95% CL – 5 % SL, 80% CL – 20% SL, 65% CL – 35% SL dan 55% CL – 45% SL. Pengujian ini menghasilkan kesimpulan bahwa semakin tinggi Kapur Padam maka Kepadatan semakin menurun dan semakin menurun kepadatan maka kadar air semakin tinggi.
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    LATERAL DEFORMATION ESTIMATION ON DEEP EXCAVATION BY USING ELASTO-PLASTIC CALCULATION
    (Solid State Technology Volume: 63 Issue: 3, 2020) Agustian, Yanyan; Setiawan, Asep; AshSiddiq, Raden Herdian Bayu
    For safety and smoothness of excavation work, especially deep excavation, it is necessary to calculate the horizontal displacement of the soil wall so that its movement can be controlled. This must be done continuously during the excavation process until the backfilling process is complete. However, the calculation of ground motion due to the lateral forces of the soil is very complex. This is due to the nonlinear nature of the soil, by means that the calculation must consider the nonlinearity of the soil and also consider the properties of the soil spring and the retaining wall itself. One computational approach has been undertaken in this case study which describes the calculation of soil properties and retaining walls to estimate and evaluate the movement of the retaining walls during excavation works. The results of the calculations show a good correlation between the results of the calculations and the results of monitoring the movements in the field. So that this method can be used for similar calculations in excavation work.
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    RE-ANALYSIS OF BUILDING FOUNDATIONS
    (PalArch's Journal of Archaeology of Egypt/ Egyptology, 2020) Atmoko, Rosep Dwi; Andriyanto; Sonjaya, Endang; Ramadhan, Jaya; Setiawan, Asep
    The carrying capacity of the foundation is the main thing that determines the ability of the foundation to withstand structural loads. A review of the re-analysis of the foundation in this study includes analysis of the allowable bearing capacity of the pile, planning the efficiency and bearing capacity of the group foundation by remodeling the superstructure using the Etabs V 13 program to get the reaction received by the foundation. The regulations used are SNI 03-2847-2002 regarding general regulations on structural planning and SNI 03-1726-2012 regarding earthquake resistance procedures for building buildings. From the results of the re-analysis of the structure, it is obtained that the bearing capacity of the group piles after the addition of the number of floors Q permit = 6298.45 <6549.77 kN (does not meet Q permit pile), P max = 915.75 kN > Supporting capacity of pile pressure permits = 749.816 kN (does not meet), so with these results it can be concluded that the piles used do not meet the priority factor.