【摘要】 根据现有地下结构抗震计算方法和脉冲响应函数原理,提出了用于地下结构时程地震反应分析的广义脉冲响应函数法.以某一隧道为例,计算了其在地震荷载作用下的动力反应,并与逐步积分方法进行了比较.计算结果表明,脉冲函数法用于地下结构动力分析,具有较高的计算精度,且计算效率会大大提高.更多还原

【Abstract】 Based on the method of anti-seismic computation of underground structure and the theory of impulse response function, a generalized impulse function method applied to the time ?history seismic response of underground structure was proposed. For example, tunnel’s seismic response were calculated by using the generalized impulse function method and the step-by-step integration method. It’ s shown that the dynamic analysis of method underground structure by using the impulse function has higher computational accuracy and higher computational efficiency.更多还原