在役预应力混凝土连续箱梁长期性能监测技术研究  

Prestressed Concrete Continuous Box Girder in Service Performance Monitoring Technology Research for a Long Time

作　　者：邓昌宁[1] 

机构地区：[1]辽宁省交通科学研究院,沈阳110015

出　　处：《北方交通》2013年第11期38-41,共4页Northern Communications

摘　　要：通过对辽宁省一座具有代表性的存在典型病害的在役预应力混凝土连续箱梁桥的腹板裂缝、控制截面应变、纵向线型及固有频率的长期监测,分析监测参数的发展变化情况及病害对结构的影响,为该类桥梁的维修加固提供理论依据。By LiaoNing presence of a representative typical diseases in our province of the prestressed concrete continuous box girder bridge in service web cracks, control section strain, and the natural frequency of the long - term monitoring, analysis of the development of monitoring parameters and the changes of disease~ influence on the structure, which provides the theoretical basis of this kind of bridge maintenance. Through the effects on the highway of the existence of typical of cracks in the redesign of prestressed beamtocolumn coagulation box girder structure performance test research and structure analysis of anatomy, the box girder along the direction of prestressed pipe redesign of the cracks of reason, analysis to the structure safety and durability influence, put forward disposal idea and for the future of the construction of the proposal.

关 键 词：连续箱梁 长期性能 监测 

分 类 号：U446[建筑科学—桥梁与隧道工程]