【摘要】 为研究共同沟结构体系的抗震设计,以我国当前通用的共同沟结构体系为试验对象,在3m×3m振动台上设计了共同沟体系的振动台试验模型,模拟了共同沟体系及其周围土的地震反应,初步探讨了均匀场地中共同沟整个体系地震作用下的反应特点.试验结果表明:共同沟体系的地震反应有其自身的特征,地震动强度、土体性质、埋设深度、结构形式、沟内结构物的支撑形式和材料等对体系的地震反应影响显著.更多还原

【Abstract】 The paper presents a shaking table test aiming to explore seismic response characteristics and earthquake damage mechanism of utility tunnel systems. The experiment was done on a 3 m×3 m shaking-table,and three seismic acceleration records were selected as input motion. A utility tunnel model with the scale of 1: 10 was built up based on statistics of the popular utility system in China,which was a two-span structure with transect size of 6000 mm×2500 mm,and the buried depth of utility tunnel body was 2000 mm. Seismic responses of the utility tunnel system and the soil around it were simulated,and the response characteristics of the whole utility tunnel system were discussed. Results show that the strength of earthquake,the quality of soil,the buried depth,the system structure,the wall thickness,the amount and distribution of steel frame and so on have great effects on earthquake damage of utility tunnel systems.更多还原