【摘要】 本文以纵向非一致地震激励试验为主,对地下综合管廊振动台模型试验结果进行了分析,包括模型场地的加速度响应、结构的应变响应、结构和场地加速度响应关系、结构应变响应的原因、结构接头位移响应、结构在纵向非一致激励和一致激励下应变响应的区别。结果分析表明,本试验模型场地及模型结构设计合理,从中得到了关于地下综合管廊非一致地震激励作用下响应规律的一些新内容。更多还原

【Abstract】 Taking the model test in longitudinal direction as an example,the experimental results of utility tunnel under non-uniform excitation are discussed and analyzed in this paper.In particular,test results are discussed in terms of structural model response,model ground response,movement of construction joint and effect of nonuniform earthquake excitation.The analyses show that the design of shear box and model structure is successful and forms a good base for numerical simulation.The comparison shows that the structural responses under non-uniform earthquake excitation is larger than that under uniform excitation.The effect of spatial distribution of earthquake excitation should be considered in seismic design of utility tunnel.更多还原