Inelastic earthquake spectra considering damage index
In this paper, firstly, a procedure of analysis of inelastic response spectra based on Park and Ang damage model, called RD spectra, is proposed. Secondly, considering ultimate limit state of structures and due to programming DBDS, a set of RD spectra are obtained. RD spectra consider both the effects of maximum inelastic displacement and the effects of cumulative hysteretic energy, fairly according with the actual inelastic behavior due to ground motions. Thirdly,corresponding to lots of time history analysis of SDOF oscillators and regress of the datum, an expression about RD spectra is presented, which can be used in seismic evaluation of structures in the future. Finally, the proposed RD spectra are compared with Rμ spectra in qualitative, and the comparison shows the importance of considering the duration of ground motions.
damage index inelastic response spectra cumulative energy ductility factor duration
Yang Wei Jinping Ou
Department of Urban & Civil Engineering,Harbin Institute of Technology Shenzhen Graduate School,Shen Department of Urban & Civil Engineering,Harbin Institute of Technology Shenzhen Graduate School,Shen
国际会议
第六届国际振动工程会议(The 6th International Conference on Vibration Engineering)(ICVE’ 2008)
大连
英文
2008-06-04（万方平台首次上网日期，不代表论文的发表时间）