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All Journal Rekayasa Sipil Journal of Science and Applicative Technology JURNAL SAINTIS
Nugraha Bintang Wirawan
Civil Engineering Department, Institut Teknologi Sumatera, South Lampung, Lampung Province, Indonesia
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering

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Journal : Rekayasa Sipil

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MITIGASI BENCANA MENGGUNAKAN PETA FAKTOR KEAMANAN LIKUIFAKSI BERDASARKAN CONE PENETRATION TEST (STUDI KASUS ITERA) Ahmad Yudi; Sayed Ahmad Fauzan; Nugraha Bintang Wirawan
Rekayasa Sipil Vol 13, No 3 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.03.3

Abstract

Institute Technology of Sumatera (ITERA) located on Sumatera Island, take place on Lampung Selatan (South Lampung. As the coastal region, Lampung Selatan dominated by the sandy soil which allows the possibility of the Liquifaction. The objectives of this research is to mitigate the Liquifaction with analyze using Liquifaction of the safety factor map under the deterministic method. In order to establish the development of Institute Technology of Sumatera (ITERA, this research expected can be used as the consideration to mitigate the damage in relation with the site condition. Deterministic method is the ratio comparison of the Cyclic Resistant Ratio (CRR) and the Cyclic Stress Ratio (CSR) effected by the earthquakes. Cyclic Stress Ratio (CSR) depends on the depth of the soil layer, total vertical pressure, effective vertical pressure, earthquake’s magnitude and the peak ground acceleration. Meanwhile, the Cyclic Resistance Ratio (CRR) calculated by the correlation of the empirical result of CPT. The safety factor value analyzed by the comparison value of CSR and CRR that pointed on 12 CPT location. In result, take the test location on ITERA, it is known that the safety factor in this site is on the safe zone and have been described on the color zone on the map as the disaster mitigation.
ANALISIS PERILAKU STRUKTUR BETON DAN BAJA DENGAN METODE LEVELLING TIME HISTORY (STUDI KASUS GEDUNG E ITERA, LAMPUNG, INDONESIA) Ahmad Yudi; Bayzoni M.T.; Nugraha Bintang Wirawan; Rijuli Nadaek
Rekayasa Sipil Vol 13, No 3 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.03.4

Abstract

The selection of structural material types can be based on analyzing the behavioral of the structure by giving a nonlinear dynamic earthquake load of time history. Because in Indonesia doesn’t have any data of time history record, it is necessary to match the time history data with the design spectrum response. Gedung E ITERA is modeled on reinforced concrete structures and steel structures with open frame models for the same as built drawing. Then can be evaluated the structural behavior that is like mass participation, plastic design, displacement, rotation, and base shear with time history load that will be levelling (levelling time history). With levelling the time history load , it can be found the first structural part that collapses and the maximum load that can be retained by the structure for one of the mitigation effort. The analysis uses a nonlinear dynamic time history analysis with the most dominant combination is earthquake combination. The results of this study show the differences in structural performance, the location of structural failure, and the maximum load that can be retained by the reinforced concrete structure and steel structure of gedung E Itera.
Co-Authors Ahmad Yudi Apriwelni, Siska Bayzoni M.T. Fauzan Ahmad Sayed Rijuli Nadaek Sayed Ahmad Fauzan