火烧桥梁荷载试验检测与加固维修方案研究

Research on Load Test Detection and Reinforcement Maintenance Scheme for Burning Bridges

以某高速公路桥梁出现火灾后进行检测评价为例,介绍了现场外观检查及材质状况检测并综合荷载试验评价桥梁经火灾后承载能力的方法。针对桥梁现状,给出外包混凝土加固的处理方法,制定了有效的维修改造加固方案。并再次通过荷载试验验证了加固后达到了预期效果。

Taking the detection and evaluation of a highway bridge after a fire as an example,the methods of on-site appearance inspection,material condition detection,and comprehensive load test to evaluate the load-bearing capacity of the bridge after a fire are introduced.In response to the current situation of the bridge,the treatment method for outer wrapped concrete reinforcement is given,and the effective maintenance,renovation and reinforcement scheme is formulted.And it is once again verified through load tests that the expected effect is achieved after reinforcement.