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All Journal Priviet Social Sciences Journal Jurnal Ilmiah Teknik Sipil Open Access DRIVERset
Ida Bagus Prastha Bhisama
Universitas Udayana
Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences

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DESIGN METHOD FOR STRONG COLUMNS-WEAK BEAMS FOR RISK CATEGORY IV BUILDINGS WITH TIME HISTORY PERFORMANCE ANALYSIS P Adi Yasa; Made Hendra Prayoga; Ida Bagus Prastha Bhisama
Jurnal Ilmiah Teknik Sipil Vol. 28 No. 1 (2024): Jurnal Ilmiah Teknik Sipil, Vol. 28 No. 1, Maret 2024
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITS.2024.v28.i01.p06

Abstract

Collapse pattern that considers the design of strong columns-weak beams in structures located in areas prone to large earthquakes such as Indonesia is an important thing that must be considered. When a large earthquake occurs in buildings with risk category IV based on SNI 1726-2019, the flexible parts of the beam elements are allowed to experience damage, while the columns must not experience soft-story mechanisms. To obtain a more realistic picture of it, in this study Nonlinear Time History Analysis (NLTHA) was chosen because it is considered able to provide a picture of the structural behavior that is closer to reality than Pushover Analysis. The results of the 2D time history performance analysis indicate that a beam-column capacity ratio of 1.2, as specified in SNI 2847-2019, renders the structure unable to achieve the expected collapse performance. By using a trial-and-error process to obtain a safe collapse hierarchy, an increase in column capacity of 2 to 3 times the SNI 2847-2019 column design is obtained. Based on this, in designing structures with risk category IV, apart from having to meet the terms and conditions of SNI the structure also needs to be analyzed for its performance using a more realistic methods such as NLTHA (portal) or 3D to ascertain whether the planned failure pattern can occur or not. This is important considering that the beam column capacity ratio in SNI is not sufficient to reach the Collapse Prevention (CP) condition of 95%.
DESIGN METHOD FOR STRONG COLUMNS-WEAK BEAMS FOR RISK CATEGORY IV BUILDINGS WITH TIME HISTORY PERFORMANCE ANALYSIS P Adi Yasa; Made Hendra Prayoga; Ida Bagus Prastha Bhisama
Jurnal Ilmiah Teknik Sipil Vol. 28 No. 1 (2024): Jurnal Ilmiah Teknik Sipil, Vol. 28 No. 1, Maret 2024
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITS.2024.v28.i01.p06

Abstract

Collapse pattern that considers the design of strong columns-weak beams in structures located in areas prone to large earthquakes such as Indonesia is an important thing that must be considered. When a large earthquake occurs in buildings with risk category IV based on SNI 1726-2019, the flexible parts of the beam elements are allowed to experience damage, while the columns must not experience soft-story mechanisms. To obtain a more realistic picture of it, in this study Nonlinear Time History Analysis (NLTHA) was chosen because it is considered able to provide a picture of the structural behavior that is closer to reality than Pushover Analysis. The results of the 2D time history performance analysis indicate that a beam-column capacity ratio of 1.2, as specified in SNI 2847-2019, renders the structure unable to achieve the expected collapse performance. By using a trial-and-error process to obtain a safe collapse hierarchy, an increase in column capacity of 2 to 3 times the SNI 2847-2019 column design is obtained. Based on this, in designing structures with risk category IV, apart from having to meet the terms and conditions of SNI the structure also needs to be analyzed for its performance using a more realistic methods such as NLTHA (portal) or 3D to ascertain whether the planned failure pattern can occur or not. This is important considering that the beam column capacity ratio in SNI is not sufficient to reach the Collapse Prevention (CP) condition of 95%.
Comparative analysis of the behavior of reinforced concrete buildings using static equivalent, response spectrum, and time history methods Made Hendra Prayoga; Ida Bagus Prastha Bhisama; P. Adi Yasa
Priviet Social Sciences Journal Vol. 6 No. 2 (2026): February 2026
Publisher : Privietlab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55942/pssj.v6i2.1616

Abstract

In structural analysis, earthquake loads are generally calculated using either equivalent static or dynamic approaches (response spectrum and time history), as specified in the SNI 1726:2019. This study aims to evaluate and compare the behavior of the Collins Boulevard Apartment building structure under earthquake loads using these three methods. The analysis was conducted using the structural modeling of a high-rise building with a dual system. For the time history method, three real earthquake records were used: Chi-Chi, Ibaraki Off, and Tohoku, which represent shallow crustal, Benioff, and megathrust earthquake sources, respectively. The results indicate that the equivalent static method produced the highest base shear of 51,761 kN, followed by the response spectrum method with ratios of 0.55 and 0.51 for the X and Y directions, respectively, relative to the static value, and the time history method with ratios of 0.48 and 0.42 for the X and Y directions, respectively. The maximum inter-story drift occurred in the equivalent static method, exceeding the allowable limit specified in SNI 1726:2019, while the two dynamic methods remained within safe limits. The internal forces in the beams and columns ranged from 0.3–0.9 times those produced by the static method, with the time history method exhibiting more fluctuating yet realistic structural responses.
Co-Authors Made Hendra Prayoga P Adi Yasa P. Adi Yasa