Structural damage potentials and design implications of 2016 Gyeongju and 2017 Pohang earthquakes in Korea

Cheol-Ho Lee, Ji-Hun Park, Sung-Yong Kim, Dong-Kwan Kim and Su-Chan Jun

Abstract

This paper presents a comparative study of the damage potentials for the 2016 Gyeongju and 2017 Pohang earthquakes in Korea. Plausible technical explanations are provided for the more severe damage observed in the 2017 Pohang earthquake in spite of its relatively weaker magnitude and intensity measures based on the response analysis of elastic and inelastic single-degree-of-freedom systems for the recorded ground motions. In addition, a detailed case study was conducted for a fatally damaged piloti building with an eccentric shear wall core based on nonlinear dynamic analysis using the input ground motions modified for the building site.

Key Words

earthquake damage potential; irregularity; nonlinear dynamic analysis; piloti building; seismic design

Address

Cheol-Ho Lee:Department of Architecture and Architectural Engineering, Seoul National University, Seoul 08826, Korea Ji-Hun Park:Division of Architecture and Urban Design, Incheon National University, Incheon 22012, Korea Sung-Yong Kim:School of Architecture, Changwon National University, Changwon 51140, Korea Dong-Kwan Kim:Department of Architecture Engineering, Cheongju University, Cheongju 28503, Korea Su-Chan Jun:Department of Architecture and Architectural Engineering, Seoul National University, Seoul 08826, Korea

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