SEISMIC DESIGN LESSONS LEARNT FROM FRAME STRUCTURES IN 5-12 WENCHUAN EARTHQUAKE

摘要

Typical building damages of frame structures in 5·12 Wenchuan Earthquake were investigated. Based on the analysis of damage characteristics,this paper summarizes the damage rules and lessons learnt from the mega-earthquake. Seismic principles,key problems,and design suggestions to improve the earthquakeresistant performance of frame structures are also proposed. It is concluded that,the vested seismic design objectives of frame structures can be achieved provided that seismic concepts,structural details,design requirements,and construction quality are accurately performed.