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All Journal International Journal of Science and Applied Science: Conference Series Jurnal Riset Rekayasa Sipil
As’ad, Sholihin
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Chemistry Civil Engineering, Building, Construction & Architecture Education Engineering Environmental Science Mathematics Physics

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Allocation Priority Determination System for Provincial Bridge Maintenance Fund in Special Region of Yogyakarta By Examining Physical Conditions, Operational Cost and Volume of Traffic Abdillah, Rifqi Aulia; As’ad, Sholihin; Sangadji, Senot
International Journal of Science and Applied Science: Conference Series Vol 2, No 1 (2018): International Journal of Science and Applied Science: Conference Series
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (734.332 KB) | DOI: 10.20961/ijsascs.v2i1.16732

Abstract

The maintenance of bridges is relatively expensive. Those may lead the maintenance program into a classical problem which is limited of the fund. Therefore, the priority level of bridges maintenance is needed in order to attain an effective and efficient fund usage toward prevalent condition of every bridges in Special Region of Yogyakarta. The objective of this research was to provide the maintenance fund for provincial bridges in Special Region of Yogyakarta. The research covered 10 bridges in Special Region of Yogyakarta. The Assessments method for bridge physical condition was based on guide of Bridge Management System (BMS). As the bridge physical condition was known, the maintenance measure and its needed maintenance cost can be determined. The allocation of fund for each bridge was calculated based on Dynamic Programming Method. The result can be draw that by 5 million rupiah the maintenance fund for each of those 10 bridge of Yogyakarta Special Region is 5 million rupiah for Demak Ijo Bridge, 13 million rupiah for Bedingin Bridge, 10 million rupiah for Denggung Bridge, 5 million rupiah for Ngentak Bridge, 5 million rupiah for Karang Semut Bridge, 8 million rupiah for 2rd Kronggahan Bridge, 7 million rupiah for Besi Bridge, 8 million rupiah for Cebongan Bridge, 2 million rupiah for Kembang Songo Bridge, 2 million rupiah for 1st Kronggahan Bridge. Those allocation system provide 78,7% an average percentage on provincial bridges in Special Region of Yogyakarta. 
Integer 1/0 Knapsack Problem Dynamic Programming Approach in Building Maintenance Optimization Fawzy, Viska Dewi; Sangadji, Senot; As’ad, Sholihin
International Journal of Science and Applied Science: Conference Series Vol 2, No 1 (2018): International Journal of Science and Applied Science: Conference Series
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1196.926 KB) | DOI: 10.20961/ijsascs.v2i1.16762

Abstract

The most common problem in urban areas is the high public demand and the limited provision of housing. In meeting the needs of affordable housing for low income communities, the Government of Indonesia implements Rusunawa Project. Object of this research is Pandanarang Rusunawa. Rusunawa Pandanarang is one of the vertical housing in Cilacap that is facing deterioration issue and needs good maintenance management. This study aims at insetting priority and optimizing maintenance plan due to limited funds (limited budget) and the amount of damage that must be repaired.This study uses one of the optimization methods of Dynamic Programing on the application of Integer 1/0 Knapsack Problem, to determine an schedule the maintenance activities. The Criteria that are used such as: the level of building components damage and the level of occupants participation. In the first criterion, the benefit (p) is the percentage of damage that is fixed with the cost (w). While on the second criterion, the benefit (p) is the percentage of occupant participation rate on the maintenance activities with the cost (w). For the budget of Rp 125.000.000, 00, it was obtained from the simulation that the value of the optimum solution on the first criterion at the 7th stage of 71.88% with total cost Rp 106.000.000, 00. At the second criterion, the value of the optimum solution at the 7th stage of 89.29% with total cost Rp 124.000.000, 00.
VALIDASI DATA HUJAN SATELIT TERHADAP DATA GROUND UNTUK ESTIMASI DEBIT ANDALAN DI KOTA SURAKARTA Saputro, Maknun Seno Aji; Hadiani, Rintis; As’ad, Sholihin
Jurnal Riset Rekayasa Sipil Vol 8, No 2 (2025): Maret 2025
Publisher : Prodi Teknik Sipil Fakultas Teknik Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jrrs.v8i2.101899

Abstract

Rainfall plays a critical role in the hydrological cycle, affecting various sectors such as water resource management, agriculture, and disaster mitigation. The Global Precipitation Measurement (GPM) satellite is a significant innovation in global rainfall measurement. The availability of GPM satellite data is particularly beneficial for regions with limited ground-based rainfall station data. This study validates rainfall data from the Global Precipitation Measurement (GPM) satellite against ground observation data to calculate dependable flow in Pepe River, Surakarta, using the National Rural Electric Cooperative Association (NRECA) method. The analysis spans data from 2004 to 2024. Validation results show a strong correlation (R = 0,7315) but notable deviations with Root Mean Square Error (RMSE) = 0,415 and NSE = 0,667. Post-calibration (coefficient 0,856), the correlation improves significantly (R = 1, RMSE = 0,016, NSE = 0,758). Dependable flow analysis identifies February as the month with the highest average discharge (1,163 m3/s) and highlights 2017 as the year with a Q80% value of 4,578 m3/s using the Weibull Basic Month method. Comparison of Q80% results with field discharge data, obtained through rating curve conversion, shows that the Q80% value falls within the standard deviation range of field discharge, validating the calculated results. The results of this study are expected to provide insights into the quality of GPM satellite rainfall data for dependable flow estimation.
Co-Authors Hadiani, Rr. Rintis Rifqi Aulia Abdillah, Rifqi Aulia Saputro, Maknun Seno Aji Senot Sangadji, Senot Viska Dewi Fawzy, Viska Dewi