【摘要】 阐述大跨结构用振型分解反应谱法计算竖向地震作用的理论依据;应用有限元法计算不同形式现浇肋形楼盖的动力特性参数(自振频率、周期、振型向量、振型参与系数、地震作用等),并在数据分析的基础上做出对工程设计及应用有一定参考价值的分析结果。更多还原

【Abstract】 In this paper the theoretical of the vertical earthquake action of long span structure calculated by the multi-vibration mode reaction spectrum method is presented;the dynamic response parameters(natural frequencies,natural periods,vectors of vibration mode,participating coefficients of vibration mode etc.)of gird-beam-slabs are calculated by the finite ele-ment method,and some results analyzed can provide valuable reference for engineering designing and application on the basis of data analysis.[更多还原