Behaviors of RC Structures with Soft-story under Seismic Load - An Example on Southern California Buildings

• Main Authors: Chun-Chiao Chang, 張竣喬
• Other Authors: 黃昭勳
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/526x34

碩士 === 國立臺北科技大學 === 土木與防災研究所 === 95 === The Research is to study the seismic behaviors of low-to-midrise concrete buildings with a soft first story by analyzing five concrete frames with various configurations of infills. Typical Buildings located in the Los Angeles area were assumed, and the designs were conducted based on 2003 IBC、ASCE 7-02、and ACI 318-02. Then the Structures were analyzed according to the simplified nonlinear analysis specified in ATC-40. Finally, the seismic performance of each building was compared to the “Life Safety” criterion proposed in FEMA-356. Results of the analysis showed that for structures with soft-story, Life safety criterion cannot be reached under the design based earthquake. In addition, the Pure Frame modal also failed to meet the Life safety criterion due to the significant reduction in design earthquake load as permitted by the building code.