ABSTRACT

This article proposes a rotation-restrained energy-dissipation device (RED) for the seismic control of a three-span curved isolated bridge. The configuration and working mechanism of RED are introduced in detail, and the finite element and simplified model are therefore derived. The seismic responses, parametric analysis and ground motion sensitivity analysis of the isolated bridge with and without RED are conducted to study the effectiveness of RED. Results show that RED can significantly reduce the displacement of the deck and the deformation of the isolated bearings, and make the column shear force at middle and side piers more balanced.

中文翻译：

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旋转约束消能装置对弯形隔震桥梁抗震性能的影响

摘要

本文提出了一种旋转约束消能装置（RED），用于三跨弯形隔离桥的地震控制。详细介绍了RED的结构和工作机理，推导了有限元模型和简化模型。进行有无RED隔离桥的地震响应，参数分析和地震动敏感性分析，以研究RED的有效性。结果表明，RED可以显着减少桥面位移和孤立支座的变形，并使中墩和侧墩的柱剪力更加平衡。