基于凸集模型的界限pushover分析-地震工程与工程振动.PDFVIP

26 5 Vol. 26, No. 5 2006 10 EARTHQUAKE ENG INEERING AND ENG INEER ING VIBRATION Oct. 2006 : 1000-1301( 2006) 05- 0081- 07 pushover 贾立哲, 段忠东, 陆钦年 ( , 150090) : , , , , ; pushover, pushover 給出的界限 pushover方法能给出性态指标的变化区间, 是 : ; ; pushover; : P315. 957 : A Convex set m odel-based bound pushover analysis Jia L izhe, Duan Zhongdong, Lu Q innian ( School of Civil Eng ineering, H arbin Institute of Technology, H arbin 150090, China) Abs tract: M any uncertain factors are involved in seism ic perform ance evaluation and the probabilistic results drawn from inadequate information are suspectable. Considering the uncertainties of peak acceleration and frequency char- acteristics by using a bounded convex setmode,l the bounds of shear forces are derived from the Ch inese seism ic code, and then a new lateral bound loadmethod for pushover analysis is proposed. Then the convex analysism eth- od is integrated into pushover analysis to study the bounds of structural capacity. A s a resu lt, the convex model- based pushover analysism akes an estmi ation of the performance of structure w ith an interval, and it ismore objec- tive and robustw ith respect to probabilistic perspective. K ey w ord s: uncertainty; convex setmodel; Push-over analysis; seism ic performance evaluation , , , , [ 1~ 9] , pushover , , , ; pushover, pushover, : 2005- 10- 21; : 2006- 03- 10 : ( 50 78017) : ( 1978- ), , , . 82 26 1 1. 1 , ,