Cursory seismic drift assessment for buildings in moderate seismicity regions  

作　　者：朱勇 R．K．L．Su 周福霖 

机构地区：[1]Earthquake Engineering Research Test Centre and Key Lab of Earthquake Engineering and Application Technology of Guangdong Province, Guangzhou University [2]Department of Civil Engineering, The University of Hong Kong

出　　处：《Earthquake Engineering and Engineering Vibration》2007年第1期85-97,共13页地震工程与工程振动（英文刊）

基　　金：the Research Grants Council of Hong Kong Under Project No. HKU 7023/99E and HKU 7002/00E;The Ministry of Science and Technology of PRC and The Bureau of Science and Technology of Guangzhou Under Project No. 2004CCA03300 and No.2004Z1-E0051

摘　　要：This paper outlines a methodology to assess the seismic drift of reinforced concrete buildings with limited structural and geotechnical information. Based on the latest and the most advanced research on predicting potential near-field and far field earthquakes affecting Hong Kong, the engineering response spectra for both rock and soil sites are derived. A new step-by-step procedure for displacement-based seismic hazard assessment of building structures is proposed to determine the maximum inter-storey drift demand for reinforced concrete buildings. The primary information required for this assessment is only the depth of the soft soil above bedrock and the height of the building. This procedure is further extended to assess the maximum chord rotation angle demand for the coupling beam of coupled shear wall or frame wall structures, which may be very critical when subjected to earthquake forces. An example is provided to illustrate calibration of the assessment procedure by using actual engineering structural models.This paper outlines a methodology to assess the seismic drift of reinforced concrete buildings with limited structural and geotechnical information. Based on the latest and the most advanced research on predicting potential near-field and far field earthquakes affecting Hong Kong, the engineering response spectra for both rock and soil sites are derived. A new step-by-step procedure for displacement-based seismic hazard assessment of building structures is proposed to determine the maximum inter-storey drift demand for reinforced concrete buildings. The primary information required for this assessment is only the depth of the soft soil above bedrock and the height of the building. This procedure is further extended to assess the maximum chord rotation angle demand for the coupling beam of coupled shear wall or frame wall structures, which may be very critical when subjected to earthquake forces. An example is provided to illustrate calibration of the assessment procedure by using actual engineering structural models.

关 键 词：seismic hazard assessment response spectrum soil site rock site displacement-based inter-storey drift coupling beams chord rotation angle 

分 类 号：P315[天文地球—地震学]