【摘要】 为探讨地下隧道对附近地面高层建筑地震反应的影响,对均匀场地下一高层框架结构进行了有限元分析,结果表明:隧道位于建筑下方时,对结构地震反应影响最大,使得结构的自振周期、位移加大而弯矩变小;隧道位于其他位置时,对结构反应的影响并非简单地随距离的增大而减小,而是表现出一定的波动性;隧道对结构地下部分地震反应的影响很小.更多还原

【Abstract】 To investigate the effect of underlying tunnel on seismic response of adjacent surface building structures, analysis via finite element method for certain high-rise frame structure on the uniform stratum has been carried out. The numerical results showed that the maximum influence on seismic response of structures occur when tunnel is just located below it, that is to say, fundamental period and displacement of structure increase significantly, but bending moments decrease. For tunnel located far away surface structures, the affecting extent on seismic response doesn’t always decrease with increase of the distance between tunnel and structures, but tends to be a certain degree of volatility. The tunnel will have little impact on seismic response of the underground part of building structures.更多还原