引桥对V形墩连续刚构桥地震响应的影响分析

Influence analysis of the approach bridges on the earthquake response of V-shaped piers of continuous rigid-frame bridge

以海南省定海大桥为工程背景,采用时程分析法,对V形墩连续刚构主桥、仅使用抗震支座的主桥和联入引桥的全桥三种情况分别进行时程分析,结果表明,引桥对V形墩连续刚构桥的影响大于抗震支座,即可以在引桥上做精细化设计来提升刚构桥的抗震能力。

With the background of Hainan Province Dinghai Bridge,time history analysis method was used on the V-shaped piers of continuous rigid-frame main bridge,main bridge which anti-seismic bearing and entire bridge without anti-seismic bearing. The result indicated that approach bridges is more effective on shock absorption than anti-seismic bearing. So could make some detailed designs on approach bridges to increase the seismic capability of rigid frame bridge.