Abstract A series of shaking table model tests were performed to investigate dynamic responses and damage mechanisms of prefabricated corrugated steel utility tunnels holding various brackets and pipelines. Details of the shaking table experimental setup for this kind of new utility tunnel are presented in this paper for the first time. Multiple seismic responses are measured, including the displacement of the soil surface, acceleration and strain of the utility tunnel, pipelines and brackets, as well as the acceleration and dynamic earth pressure of the test soil. The results demonstrate that the model box designed by our lab did not impose an obvious boundary effect. Displacement of the overlying soil above two sides of the utility tunnel was larger than that of the center of the model in the field nearby. The acceleration response of the structure was perfectly consistent with the surrounding soil. Dynamic earth pressures acting against the tunnel sidewall were significantly affected by the tunnel’s mass distribution under strong excitations. Response acceleration varied with different kinds of pipelines and brackets. The peak strain obtained from the suspending bracket was larger than that of the standing bracket. Different types of brackets were suitable for different applications. Both of the utility tunnel and brackets were not yielded under strong ground motions. The results provide valuable insight into the seismic performance of the shallow-buried underground steel structure and the safe design of the prefabricated corrugated steel utility tunnel.

中文翻译：

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装配式波纹钢综合管廊抗震性能振动台研究

摘要 通过一系列振动台模型试验研究了预制波纹钢综合管廊承载各种支架和管道的动力响应和损伤机理。本文首次详细介绍了这种新型综合管廊的振动台实验装置。测量多种地震响应，包括土面位移、综合管廊、管道和支架的加速度和应变，以及试验土的加速度和动土压力。结果表明，我们实验室设计的模型框没有施加明显的边界效应。综合管廊两侧上覆土体位移大于模型中心附近场地的位移。结构的加速度响应与周围土壤完全一致。作用于隧道侧壁的动态土压力受强激励下隧道质量分布的显着影响。不同类型的管道和支架的响应加速度不同。从悬挂支架获得的峰值应变大于站立支架的峰值应变。不同类型的支架适用于不同的应用。综合管廊和支架都没有在强烈的地面运动下屈服。研究结果为浅埋地下钢结构的抗震性能和预制波纹钢综合管廊的安全设计提供了宝贵的见解。作用于隧道侧壁的动态土压力受强激励下隧道质量分布的显着影响。不同类型的管道和支架的响应加速度不同。从悬挂支架获得的峰值应变大于站立支架的峰值应变。不同类型的支架适用于不同的应用。综合管廊和支架都没有在强烈的地面运动下屈服。研究结果为浅埋地下钢结构的抗震性能和预制波纹钢综合管廊的安全设计提供了宝贵的见解。作用于隧道侧壁的动态土压力受强激励下隧道质量分布的显着影响。不同类型的管道和支架的响应加速度不同。从悬挂支架获得的峰值应变大于站立支架的峰值应变。不同类型的支架适用于不同的应用。综合管廊和支架都没有在强烈的地面运动下屈服。研究结果为浅埋地下钢结构的抗震性能和预制波纹钢综合管廊的安全设计提供了宝贵的见解。从悬挂支架获得的峰值应变大于站立支架的峰值应变。不同类型的支架适用于不同的应用。综合管廊和支架都没有在强烈的地面运动下屈服。研究结果为浅埋地下钢结构的抗震性能和预制波纹钢综合管廊的安全设计提供了宝贵的见解。从悬挂支架获得的峰值应变大于站立支架的峰值应变。不同类型的支架适用于不同的应用。综合管廊和支架都没有在强烈的地面运动下屈服。研究结果为浅埋地下钢结构的抗震性能和预制波纹钢综合管廊的安全设计提供了宝贵的见解。