Modeling’s Effect of Irregular Building Structure with Vegetated Roof on Seismic Evaluation per ASCE 41-17

Authors

  • Muhammad Puja Fathurrachman Department of Civil Engineering, Universitas Gadjah Mada, Yogyakarta
  • Iman Satyarno Department of Civil Engineering, Universitas Gadjah Mada, Yogyakarta
  • Djoko Sulistyo Department of Civil Engineering, Universitas Gadjah Mada, Yogyakarta

DOI:

https://doi.org/10.18196/st.v27i2.22775

Keywords:

Modelling Assumptions, Irregular Building, Vegetated Roofs, Linear Evaluation, Structural Performance

Abstract

This study examines the seismic vulnerability of an irregular educational building with a vegetated roof in Yogyakarta using linear procedures based on ASCE 41-17. Modelling approaches differ Model 1 treats skylights and planter boxes as loads with straight roof slabs, while Models 2 and 3 use shells with sloping roof slabs. Vegetated roofs are featured in Models 1 and 2. The analysis, conducted at seismic hazard levels BSE-1N and BSE-2N using the ETABS program, evaluates structural components and compares Response Spectrum (RS) and Linear Time History (LTH) methods. Results show seismic weight variations of 1.20% to 15.04% between models. Model 1 fails to meet the criteria for modal analysis, while Models 2 and 3 do. The structural performance evaluation based on average demands at BSE-1N and BSE-2N levels varied from Immediate Occupancy to Life Safety performance. The LTH method in all models had higher acceptance ratios than the RS method.

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Published

2024-11-26

How to Cite

Fathurrachman, M. P., Satyarno, I., & Sulistyo, D. (2024). Modeling’s Effect of Irregular Building Structure with Vegetated Roof on Seismic Evaluation per ASCE 41-17. Semesta Teknika, 27(2), 168–181. https://doi.org/10.18196/st.v27i2.22775

Issue

Vol. 27 No. 2 (2024): NOVEMBER

Section

Articles

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