Seismic Performance Evaluation of RC Moment Frames Designed Using Multiple Lateral Force Distributions:A Case Study
Lateral force pattern plays an important role on the determination of structural height wise strength dis tribution when performing seismic design.Current code-based lateral force patterns are implicitly based on the first-mode dynamic solutions of elastic structural systems.This will lead to undesirable seismic response when structures are subjected to severe earthquakes.New lateral force distributions have been developed by other researchers based on the concept of uniform damage for the attempt to design structures to deform uni formly.In the present study, two code-based and three new lateral force patterns were used to carry out the seismic design and a case study of a 12-story reinforced concrete moment frame was investigated.The de signed moment frames had the same initial configuration and differed only in lateral force patterns.Pushover analysis was discussed for the initial structural stiffness and ultimate strength.Nonlinear time history analysis and incremental dynamic analysis were conducted for the comparison of story drift and relative story shear de mand.Results show that lateral force distributions have little influence on the seismic behavior when subjec ted to low intensity of ground motions while have influence on the seismic response when to severe ground motions.
Jiulin Bai Jinping Ou
School of Civil engineering, Harbin Institute of Technology, Harbin, China School of Civil engineering, Harbin Institute of Technology, Harbin, China; Faculty of Infrastructur
国际会议
哈尔滨
英文
187-195
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）