基于静荷载试验的预应力混凝土连续梁桥承载力分析

Bearing capacity analysis of prestressed concrete continuous girder bridge based on static load test

桥梁在使用过程中,不可避免受雨雪、地震、冰冻等自然因素的影响、人为因素的冲击破坏以及在有害物质的侵蚀下产生的混凝土碳化、钢筋锈蚀等病害,随着时间的增长,这类病害将进一步发展,甚至危及桥梁的结构使用安全。为探究桥梁服役一定年限后的承载能力,以两联六孔预应力混凝土连续梁为工程实例,通过桥梁荷载试验,对其承载力展开分析和研究,掌握桥梁结构实际工作状态了解,评定桥梁结构的工作性能和状态,确保后续加固和维修方案切实可行、有据可依。

Bridge in use,inevitably affected by various diseases such as rain and snow, earthquake, freezing and other natural factors,human factors and the generation of harmful substances carbonization of concrete,steel corrosion.As time goes on,these diseases will develop further and even endanger the structural safety of the bridge.In order to explore the bearing capacity of bridge service after a certain number of years,two-joint six-hole prestressed concrete continuous beam is taken as an engineering example in this paper. Through the bridge load test,the bearing capacity of the bridge was analyzed and studied.What＇ s more,master the actual working state of the bridge structure to understand and assess the work performance and state of the bridge structure to ensure that the follow-up reinforcement and maintenance program feasible and evidence-based.