地震高烈度区高架桥减隔震措施设计

Design of Seismic Isolation Measures for Viaduct in High Seismic Intensity Area

对于地震高烈度区城市高架桥,必须通过设定合理的抗震设防目标,进行系统减隔震设计。设计和施工中,必须合理采用一系列配套减隔震措施,使高架桥在地震作用时能有效控制结构的地震损伤,从而避免落梁等桥梁整体垮塌事故发生,减少经济损失,保障生命线工程的可靠性。

For urban viaduct in high seismic intensity area,it is necessary to set reasonable seismic fortification target and carry out systematic seismic reduction and isolation design.In the design&construction,a series of supporting seismic reduction&isolation measures must be reasonably adopted so that the viaduct can effectively control the seismic damage of the structure during the earthquake action,so as to avoid the overall collapse accident of the bridge such as falling beam,reduce the economic loss and ensure the reliability of the lifeline project.