齐鲁黄河大桥约束体系及抗震计算

Restraint System and Seismic Calculation of Qilu Yellow River Bridge

摘要:

济南齐鲁黄河特大桥主桥为下承式系杆拱桥，长1 170 m，其中桥跨组合为95 m+280 m+420 m+280 m+95 m，主桥跨度420 m的网状吊杆系杆拱桥，建成后将成为同类桥型跨径世界第一。桥宽60.7 m，采用一级公路标准，双向八车道，主桥范围为公轨合建的桥梁形式，中间预留城市轨道交通空间，兼顾城市主干路功能。介绍其抗震约束体系及抗震计算。

Abstract:

The main bridge of Jinan Qilu Yellow River Bridge is a through bowstring arch bridge, and is 1 170 m long, in which the bridge span combination is (95+280+420+280+95) meters. The 420 m-span web suspender bowstring arch bridge of the main bridge becomes the first one of same span bridges in the world. Its bridge width is 60.7 m. The first-class highway standard with two directions and eight lanes is adopted. The scope of the main bridge is in the form of a bridge built by the combination of highway and rail. The urban rail transit space is reserved in the middle and takes into account the function of the urban trunk road. Its seismic restraint system and seismic calculation are introduced.