曲线梁桥支座脱空破坏与处置对策研究
he bearing takes off and repair measures
厦门市机场路环岛北路互通B匝道桥第三联为连续箱梁曲线桥,平面位于R=135m的圆曲线上,上部构造采用预应力混凝土箱梁,过渡墩处采用矩形板式橡胶双支座。次边墩墩顶支座为圆板橡胶支座,中间墩为钢管混凝土圆形截面独柱固结墩。在施工结束后出现箱梁整体外移,过渡墩支座脱空与次边墩支座剪切破坏等病害。借助MIDAS/Civil计算软件对全桥进行模拟分析,研究病害出现的机理,主要为预应力钢筋布置不当与温度荷载的影响。在此基础上提出修复加固方案,并验证方案的可行性。可对以后曲线梁桥设计提供借鉴。
Xiamen City airport road wreath island north road is continuous box girder curve bridge, the flat surface is located in the circle curve which R=135m, upper part structure is continues box girder, transition pier adopts double rectangle rubber bearing. The side pillar adapts circle rubber bearing, the center pier is steel pipe and concrete pier, After the construction, the whole beam become outside move, transition pier take off and the side pier appear sheared to break etc. disease, Ask for the help of MIDAS/Civil calculation software to carry on imitate calculation to the whole bridge, analysis the disease appeared, main causes are the press stressed steels’ direction are not direct and temperature loads’ influence. Put forward a repair project to reinforce the project on this foundation. Validate the correctness and shepherd the design.
孔德成、贾方方
公路运输工程工程设计、工程测绘
曲线梁桥支座脱空梁体偏移数值模拟修复
urve beam bridgeake offBeam body moveNumber imitateRepair
孔德成,贾方方.曲线梁桥支座脱空破坏与处置对策研究[EB/OL].(2009-01-19)[2025-08-11].http://www.paper.edu.cn/releasepaper/content/200901-858.点此复制
评论