宁波招宝山大桥加固重建工程新旧混凝土共同受力模型试验研究  

Model Test Study of New Concrete Participate in Taking Load Together with Old Concrete on Ningbo Zhaobaoshan Bridge Strengthening Plan

作　　者：周凌远[1] 强士中[1] 张强[1] 

机构地区：[1]西南交通大学桥梁及结构工程系,四川成都610031

出　　处：《桥梁建设》2001年第3期35-39,共5页Bridge Construction

摘　　要：宁波招宝山大桥加固方案中 ,原箱梁底板与腹板内侧新增 2个劲性钢筋混凝土小梁 ,为研究新旧混凝土共同受力情况 ,进行了模型试验。介绍了这一试验的分析结果。实验结果表明 ,新旧混凝土能很好地共同承受轴向压力 。In Ningbo Zhaobaoshan bridge strengthening plan, two stiffened girder were add to the place where the formerly designed base plate and inner wall of web plate of box beam are conjuncted, A model test was done to study whether the new concrete participate in taking loads with the old. The result of the test was introduced, the result of the test demonstrated that the new concrete can participate in taking not only the axial compressive stress but the bending stress together with the old concrete.

关 键 词：宁波市 招宝山大桥 预应力混凝土结构 模型试验 加固 受力情况 

分 类 号：U445.72[建筑科学—桥梁与隧道工程] U446.1[交通运输工程—道路与铁道工程]