【摘要】 本文基于积函数极值法,对刚度分布未确知的连续拱桥的墩顶地震位移上限进行了识别。文中研究了两跨、三跨,任意奇数跨和任意偶数跨等各种情形,对简化模型作了精度分析,并将所识别的上限值与实际计算反应值进行了比较。更多还原

【Abstract】 In this paper based on the method of extremum of product function the seismic margin identification is completed for the displacement response of the pier top of continuous arch bridge with the rigidity distribution unidentified. Several cases such as i ) two-span case ; ii) three - span case; iii)number of spans to be odd and iv) number of spans to be even are studied. The accuracy of the simplified model is analyzed. The identified upper bound margin of the seismic response is compared with the result from practical calculation.更多还原