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Moh Debby Rizani
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Jurnal Teknik Sipil Giratory Upgris
Published by Universitas PGRI Semarang
ISSN : 26217864     EISSN : 27164969     DOI : https://doi.org/10.26877/goratory
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Transportation
Jurnal ini bertujuan untuk menyediakan platform bagi para ilmuwan dan akademisi di seluruh dunia untuk mempromosikan, berbagi, dan mendiskusikan berbagai masalah dan perkembangan baru di berbagai bidang teknik sipil
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 82 Documents
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ANALISIS TINGKAT NON-REVENUE WATER (NRW) PADA JARINGAN DISTRIBUSI SPAM PUSAT PERUMDA AIR MINUM PALANGKA RAYA Nanda, Fahreza Alvian; Masduqi, Ali; Ahyar, Agus; Adhi, Bagas Wahyu
Jurnal Teknik Sipil Giratory UPGRIS Vol 5, No 1: Juni 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v1i1.19458

Abstract

NRW is still a problem for PDAMs in Indonesia in providing drinking water for the community. This can be seen from the national average NRW level in 2021, which was 33.72% (higher than the RPJMN target of 30%). The ATR reduction strategy can be carried out correctly if the indicators or components are accurately measured. The problem is that many PDAMs need help to understand the definition or calculate ATR components according to international standards with high confidence. In this research, a water balance was prepared using WB-EasyCalc to determine the value of each ATR component with a 95% confidence level, potential loss of income, and ILI value. The results of the water balance analysis show that the ATR level at Perumda Air Minum Palangka Raya in May 2023 was 51.84%. This percentage comprises 2.19% non-revenue official consumption and 49.64% water loss. If the NRW percentage is not reduced, the potential loss of income is estimated at IDR 15,395,984,969/year. The component that causes the most water loss is physical water loss, which reaches 42.67%. The physical water loss performance indicator (ILI) has a value of 23, which is included in performance category D (extraordinary waste of resources occurs, and leak reduction programs must be prioritized). Recommendations that can be given are related to the active leak detection and pressure management.
VARIASI SISTEM PEMBAYARAN TERHADAP CASH FLOW (STUDI KASUS : PEMBANGUNAN LABORATORIUM TERPADU AKN BLITAR) Safitri, Aida Ayu; Wiryasuta, I Ketut Hendra; Sandi, Enes Ariyanto
Jurnal Teknik Sipil Giratory UPGRIS Vol 5, No 1: Juni 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v1i1.19454

Abstract

Construction projects are a form of long-term investment that requires large capital. One important aspect in construction projects is the payment system. Therefore, it is necessary to vary the payment system on the cash flow of construction projects to determine the effect of the payment variation system on the safest cash flow for the contractor. In this research, the case study used for the calculation of payment system variations on cash flow is the AKN Putra Sang Fajar Blitar integrated laboratory construction project. The payment system used is the progress term payment system. The method used to obtain these results is done by varying the down payment and work progress. There are 6 variations (V) used, namely V1 down payment (0%) work progress 20%, V2 down payment (0%) work progress 25%, V3 down payment 10% work progress 10%, V4 down payment 10% work progress 25%, V5 down payment 20% work progress 20%, V6 down payment 20% work progress 25%. From the results that have been obtained, the highest peak overdraft is in V2 amounting to -Rp5,365,573,659.76 and the lowest is in V3 amounting to -Rp2,864,421,825.56. Meanwhile, the final overdraft value is the same in each variation, which is Rp824,863,740.58. Therefore, the safest variation is V3 with the lowest peak overdraft. The effect of the variation of the payment system that has been known is that the greater the down payment in each variation, the lower the peak overdraft, as well as the smaller the work progress term, the lower the peak overdraft.
STUDI OPTIMASI POMPA DISTRIBUSI SPAM KOTA PALANGKA RAYA UNTUK EFISIENSI ENERGI Alhamidiy, Abdillah Nur; Masduqi, Ali; Bustami, Bustami; Adhi, Bagas Wahyu
Jurnal Teknik Sipil Giratory UPGRIS Vol 5, No 1: Juni 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v1i1.19460

Abstract

SPAM of Palangka Raya City has a distribution unit which is powered by six pumps but only two pumps are functioning due to frequent damage to the pumps. The pumps that function is Pump III and Pump V. This research aims to evaluate pump efficiency and specific energy consumption (SEC) so that technical recommendations for optimizing existing distribution pumps are known. Pump III is installed with a VSD with a SEC value of 0.14 KWh/m3 with a pump efficiency of 70.41% so it does not require minor or major repairs but requires a new backup pump because it works 24 hours while Pump V has a SEC of 0.27 KWh/m3 with a pump efficiency of only 36.97% which requires a new pump replacement. Both pumps experienced the same problem, namely V-Unbalanced which reached 2.72-2.73%, causing a decrease in motor performance which could cause damage to the pump components and VSD, so a capacitor bank and voltage stabilizer were needed. The evaluation of energy loss in the distribution network was carried out by increasing the diameter of 57 pipe segments to reduce headloss to less than 10 m/km.
ANALISA KERUSAKAN RUAS JALAN RAYA SEMARANG BOJA (Studi Kasus Pasar Jrakah – SPBU BSB) Fikri, Fajar Ikhsanul; Rizani, Mohammad Debby; Yudaningrum, Farida
Jurnal Teknik Sipil Giratory UPGRIS Vol 5, No 1: Juni 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v1i1.19455

Abstract

The dense of traffic volume resulted in road damage on the Semarang Boja highway section to be precise at KM 8 – KM 14 Semarang Boja. Overcrowding and excessive tonnage are also factors in road damage in the area. The purpose of this study was to determine the LHR on Semarang Boja highway, the effect of vehicle volume on the level of damage to Jalan Raya Semarang Boja.. This research method is quantitative. The quantitative method is a method of collecting some data with primary data, namely direct surveys in the field and secondary data needed in this study. Based on the results of the analysis, the average daily traffic (LHR) on the northbound road was 1949.57 pcu/hour and on the southbound road was 1872.83 pcu/hour classified as heavy traffic. The degree of saturation (DS) value based on traffic volume 0.75 is 6.30 in morning conditions, 2.99 in afternoon conditions, 3.77 in afternoon conditions with a very saturated category
PERENCANAAN STRUKTUR & PONDASI GAS COMPRESSOR SHELTER STASIUN GAS BETUNG PENDOPO FIELD, PT. PERTAMINA EP ASSET 2 SUMATERA SELATAN Triwidodo, Puput; Kristiawan, Agung; Husodo, Ibnu Toto
Jurnal Teknik Sipil Giratory UPGRIS Vol 5, No 1: Juni 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v1i1.19461

Abstract

Planning for the Structure and Foundation of the Gas Compressor Shelter Betung Gas Station Pendopo Field Pertamina Asset 2 aims to upgrade facilities in order to increase production from the Pendopo Gas Station. This Gas Compressor Shelter Building is designed to be Strong and Rigid using SS400 Steel Structure. H beam structure column 400x400x13x21, WF structure rafter 400x200x9x14. In the Gas Compressor shelter building there is a Hoist Crane mechanical equipment with a capacity of 10 Tons which is based on the Beam WF-700x300x13x24. The foundation of this building uses deep foundations using square piles measuring 250x250 mm as deep as 15 meters. The quality of concrete for the foundation of the Gas Compressor Shelter uses K-350 concrete quality. From the planning above, it can be concluded that it has fulfilled the terms and conditions in Indonesian regulations and standards.
ANALISIS KOEFISIEN KEBUTUHAN MATERIAL DAN TENAGA DENGAN METODE ANALISIS BURGERLIJKE OPENBARE WERKEN (BOW) DAN METODE ANALISIS SNI 2008 TERHADAP EFISIENSI ALUR PENGADAAN MATERIAL DI PROYEK (Studi Kasus : Bangunan Tenant-150, Project Awann Costa POJ, Semarang) Octaviana, Luthfia Dea; Permata Suwandi, Putri Anggi; Rizani, Mohammad Debby
Jurnal Teknik Sipil Giratory UPGRIS Vol 5, No 2: Desember 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v5i2.21970

Abstract

The development of construction planning, especially in the construction of building structures, calculates unit prices using a tool called Construction Cost Analysis (ABK), where until now the method often used by contractors and consultants is the BOW (Burgerlijke Openbare Werken) guideline. However, as time went by, it was realized that the BOW guidelines were only segmentally suitable for projects in the form of labor-intensive work that utilized conventional equipment and less professional workforce, which resulted in very expensive planning costs if this approach was still used purely. The 2008 Indonesian National Standard (SNI) analysis method is an update of the 1921 BOW (Burgerlijke Openbare Werken) analysis during the Dutch government, in other words, the SNI analysis is an updated BOW analysis. This SNI analysis was issued by the Center for Settlement Research and Development. The cost preparation system using SNI analysis is almost the same as the calculation system using BOW analysis. The basic principle of the SNI method is that a list of coefficients for materials and labor costs has been determined to analyze the price or costs required to make a unit price for building work. From these two coefficients we will get a calculation of the materials needed and a calculation of the wages of those doing the work. The comparative composition and arrangement of materials and labor for one job has been determined, which is then multiplied by the price of materials and wages prevailing in the market.
STRATEGI MANAJEMEN RESIKO PADA PROYEK PENGENDALIAN BANJIR DAN ROB SUNGAI LOJI – BANGER PAKET 1 Perwiranegara, Alamsyah Fatih; Wibowo, Kartono; Mudiyono, Rachmat
Jurnal Teknik Sipil Giratory UPGRIS Vol 5, No 2: Desember 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v5i2.21968

Abstract

Risk management in the form of initial mitigation by considering internal and external factors and issues will be able to narrow the gap in making predictions and strategies to accelerate the completion time of work until it is completely completed. The Loji-Banger River Flood and Robo Control Project Package 1 is one of the government's strategic projects which aims to overcome tidal floods on the north coast of Pekalongan City. Risk assessment is carried out in several stages from risk identification to mitigation suggestions to reduce the scale of risk from inherent risk to residual risk which shows that of the 35 variables assessed, all risk factors have decreased on the risk scale, however there are several risk factors that are of particular concern. because the residual risk is still at a moderate level, so very tight controls or control are needed because it could potentially cause a gap in the work acceleration target time, including possible risks due to delays in material delivery (X2), possible risks due to some of the work land not being free (X11 ), possible risks due to the DIPA Budget Refocusing Issue, its influence on cash flow (X18), possible risks due to the influence of the company's financial condition on the project action plan (X19), possible risks due to errors in preparing work sequences or work zoning (X27).
ANALISIS KEBUTUHAN DAN KETERSEDIAAN AIR BERSIH DI KECAMATAN KLEGO KABUPATEN BOYOLALI Leksana, Rudi; Rizani, Mohammad Debby; Ikhwanudin, ikhwanudin; Aksin, Nur
Jurnal Teknik Sipil Giratory UPGRIS Vol 5, No 2: Desember 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v5i2.21963

Abstract

Clean water is one of important needs for human in their daily life. According to Central Statistic Department of Boyolali in 2018 TO 2021, the population of society in Klego District increased in 2022. It caused the clean water needs also increased. The services of infrastructure and clean water availability was not maximal yet causes the society must to look for the alternative sources of clean water to fulfill their clean water needs. The purposes of this research are to know the water needs and water ability and to know the reservoir capacity to be accomodate of the clean water. This research contains aboot the water needs and availability in Klego, Boyolali District. The researcher start the research by secondary data collection such as population data, the customer data, source capacity data and clean water production discharge data. In the calculation of society population, the researcher used population data in last 5 years with calculation prediction until 2032. To calculate the data, the researchers used Geometry method, Arithmetic method, and Linier Regression method. Then from the calculation, the researcher choose Arithmethic method because it have the smaller values. According to the calculation of the data by using Arithmetic method, so it is obtained the number of clean water needs, there is 66,69 liter/second in 2032 from the calculation of society population data, beside that, the clean water needs, there is 0,67 liter/second in 2032 from PDAM’s customer calculation. The clean water availability, there are 10 liter/second for source capacity and 1,9 liter/second for the production discharge in 2031. Then, the reservoir capacity is 15, 482 m3.
IDENTIFIKASI RISIKO DAN PERMASALAHAN PADA PEMBANGUNAN JEMBATAN KERETA API ELEVETED TRACK SIMPANG JOGLO Puspitasari, Nikmatul Rochmy; Wibowo, Kartono; Mudiyono, Rachmat
Jurnal Teknik Sipil Giratory UPGRIS Vol 5, No 2: Desember 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v5i2.21969

Abstract

The construction of the Simpang Joglo Elevated Track Bridge is an iconic development in the city of Surakarta with the Elevated Railway Bridge which was built over seven very busy intersections. At this intersection, traffic jams often occur when trains pass, for this reason an elevated track railway bridge was built to reduce this congestion. The implementation of development is not free from risks that occur both internally and externally. This research aims to identify the risks and problems that occur in the construction of the Simpang Joglo Elevated Track Bridge. After identification, an assessment will be carried out on the level of risk that has been identified in the construction of the elevated track bridge at Joglo intersection. Data collection was divided into two, namely primary data collection through distributing questionnaires and interviews on the Simpang Joglo Elevated Track Bridge Construction Project which was conducted with project owners, consultants and contractors and secondary data collection through previous research and data from the Simpang Joglo Elevated Track Bridge Construction Project. Risk identification is carried out using the Risk Breakdown Structure (RBS) method and probability impact grid to determine the level of risk. After obtaining the data, a feasibility test will be carried out on respondents and then a validity and reliability test will be carried out for the three stakeholders. Risk identification is carried out by calculating the probability and impact for each variable and then clarifying the ranking using the Extremely Ineffective, Ineffective, Moderately Ineffective, Very Effective and Extremely Effective rating scale. After that, the risk level is classified using a probability-impact matrix. From the results of the risk level classification, it was found that there were 31 risk variables in the high category from the owner, 31 risk variables according to the consultant and 19 risk variables according to the contractor. Determining the high category of risk is based on combining the same variables from the three stakeholders to obtain 18 risk variables. These variables are problems that occur and influence the implementation of the Simpang Joglo Elevated Track Bridge Construction Project. These problems include increased vibration, traffic flow, road damage, K3 environmental sanitation, community attitudes and perceptions, organizational structure, payments, owner finances, overtime, time and cost estimates, changes in design, heavy equipment and materials
REDESIGN JEMBATAN SUNUT KABUPATEN SEMARANG MENGGUNAKAN STRUKTUR PELENGKUNG TIPE A- HALF THROUGH ARCH BRIDGE Rahmasari, Maria Asysyifa; Praptiningrum, Retno Dwi; Budirahardjo, Slamet; Rizani, Mohammad Debby
Jurnal Teknik Sipil Giratory UPGRIS Vol 5, No 2: Desember 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v5i2.21964

Abstract

The Sunut Bridge is a bridge that crosses the Jragung River which connects Semarang Regency and Demak Regency. The initial planning for the Sunut Bridge used a prestressed concrete structure with a total length of the main bridge of 60 meters. This bridge is divided into 4 parts. From the author's assessment, the use of prestressed concrete structures with many pillars is considered to cause design waste and give the impression of stiffness to the bridge. Apart from that, seeing that the condition of the river during floods often brings flooding, thereby reducing the effective linear waterway of the river, a bridge construction was re-planned with minimal pillars using an arch structure. In this planning, the Sunut Bridge was re-planned to use a steel arch structure type A Half Through Arch Bridge. From the planning results, the vechile floor plat tickness was 23 cm. The longitudinal girder profile used is WF 800x300x16x30 and the cross girder profile WF 900x300x16x28. The next stage of calculating the primary and secondary structures is carried out by calculating the working loads which refer to SNI 1725:2016 and RSNI T-02-2005 regulations to obtain a box prifile for the main structure of the arch bridge.

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