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首页> 外文期刊>Structural engineering earthquake engineering >VELOCITY-BASED DESIGN OF SEISMIC UNSEATING PREVENTION CABLE AND SHOCK ABSORBER FOR BRIDGES
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VELOCITY-BASED DESIGN OF SEISMIC UNSEATING PREVENTION CABLE AND SHOCK ABSORBER FOR BRIDGES

机译：基于速度的桥梁防震电缆和减震器设计

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摘要

The design of connecting devices for preventing bridge girders from becoming unseated during strong seismic motion is extended to include consideration of the velocity response of the bridge. The necessary strength and cross-sectional area of the connecting cable are derived based on conservation of energy considerations, and the shock stress arising when the device becomes active is calculated. The installation of a shock absorber with optimum stiffness based on its deformation limit and the cable stiffness is found to reduce both the impact stress on the cable and the required cross-sectional area. The effectiveness of the proposed design is then verified through numerical simulations.
机译：防止桥梁梁在强烈地震运动中脱开的连接装置的设计已扩展，包括考虑桥梁的速度响应。基于节约能源的考虑，得出了连接电缆的必要强度和横截面积，并计算了设备启动时产生的冲击应力。发现基于其变形极限和电缆刚度安装具有最佳刚度的减震器可以减少对电缆的冲击应力和所需的横截面积。然后通过数值仿真验证了所提出设计的有效性。

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