Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
권호 표지
DOI QR코드

DOI QR Code

Damage Investigation of Pilotis Structures and Analysis of Damage Causes by Pohang Earthquake

포항지진에 의한 필로티 건축물 피해조사 및 피해원인 분석

  • Received : 2018.07.09
  • Accepted : 2019.03.04
  • Published : 2019.03.30
⟨ Previous Next ⟩

Abstract

On November 15, 2017, an earthquake($M_L5.4$) occurred in Pohang. Pohang earthquake was the second largest earthquake since earthquake was observed in Korea, but structural damage caused by earthquake was biggest. Structural damage caused by Pohang earthquake was mainly caused by schools and pilotis, above all damage to pilotis was outstanding. This is because area where pilotis structures are concentrated is located near epicenter, and seismic performance of pilotis structures is not excellent compared with general structures. In this study, described results of damage investigation and analysis of damage causes through analysis of pilotis Structures on 131 buildings that were investigated immediately after Pohang earthquake. In addition, cause of damage was analyzed through analysis of seismic wave. Investigation site was selected to Jangseong-dong, where damage occurred in large numbers. Damage level was classified into A, B, and C level by measuring residual crack width and story drift of structural members.

Keywords

Acknowledgement

Supported by : 국토교통부

References

  1. Ministry of Land, Infrastructure and Transport (2016). Korean Building Code 2016.
  2. Architectural Institute of Japan(2004). Guidelines for Performance Evaluation of Earthquake Resistant Reinforced Concrete Buildings(Draft)
  3. Japan Building Disaster Prevention Association(2005). Standard for Damage Level Evaluation and Guidelines for Recovery Technologies of Buildings Damaged by Earthquake
  4. National Emergency Management Agency(2012). Guidelines for Seismic Performance Evaluation of buildings, 11-1660000-000726-14
  5. Ministry of Land, Infrastructure, and Transport(2013). Guidlines for Seismic Performance Evaluation of Existing Structures, RD-13-R3-058
  6. National Disaster Management Institute(2012). Verifying Experiment of Postearthquake Damage Evaluation for Buildings, 11-1311526-000059-01
  7. Japan Building Disaster Prevention Association(2001). Standard for Seismic Evaluation of Existing Reinforced Concrete Buildings