【摘要】 新南港大桥是通往南通、南屿、永泰及福州城区必经地,是建设福州生态科学城的重要纽带。该桥位于7度地震区,主桥采用(70+4×120+70)m长联大跨混凝土连续梁结构。本文采用midas和桥梁博士分析计算各阶段结构内力,内力状态良好,均满足规范要求;并通过摩擦摆隔震支座设计有效降低下部结构地震力,节省工程投资,为同类桥设计提供参考。更多还原

【Abstract】 New nan-gang bridge is a necessary way connecting Nantong,Nanyu,Yongtai and Fuzhou.It also is an important link of the Fuzhou construction as an ecological science city.The bridge is located in 7 degrees to the quake zone.Host Bidge adopts the(70+4×120+70)m long multi-spanned concrete continuous frame.The internal force and index system of every loading phase for the bridge were very good by computing in Midas and Bridge Doctor program.And though the design of the friction pendulum bearings,the structure seismic forces are effectively reduced,and it also help cut off the project investment,provide reference for the design for the similar bridge.更多还原