Seismic Performance of Four-Story Steel Building using ASCE 41-17 and Metro Davao Earthquake Model Atlas

Abstract

Earthquakes are natural phenomena that occur when there is a sudden release of energy, resulting in seismic waves that can cause devastating events, causing widespread destruction and loss of life. The study evaluates the seismic performance of the 15-year-old Steel Building based on the latest Metro Davao Earthquake Model Atlas, National Structural Code of the Philippines (NSCP) 2015, and American Society of Civil Engineering (ASCE) 41-17. Analyzing the structure through Nonlinear Static Procedures and using the Demand Considered Earthquake (DCE) or 500-year-return period, the assessment reveals structural adequacy in terms of demand-capacity ratio, story drift, and various irregularities, except for a re-entrant corner irregularity. Pushover analysis was used to determine the structure's performance level, and the building's level was at the immediate occupancy to life safety performance level. The building is projected to remain functional and safe after seismic events, contributing valuable knowledge for earthquake-resistant construction in seismic-prone regions.