白山立交桥火烧跨检测评估

Inspection and Evaluation on Fired Spans of Baishan Interchange

介绍沈阳白山立交桥遭火烧后受损状况及检测结果。对于如何选择火烧事故桥梁加固方式,只评价其抗弯承载能力是否满足设计要求是不够的,在此基础上,对抗弯承载能力的下降比例做出定量分析才能更好地为桥梁加固设计提供理论依据,而荷载试验对比试验能够解决这个问题。介绍该桥荷载试验,对试验数据进行分析,并提出结论。

The article introduces the damage status and inspection result of Shenyang Baishan Interchange after fired. It is not enough only to evaluate its flexural bearing capacity whether or not to satisfy the design requirements for how to select the reinforcement method of fired bridges. On this basis, the reducing proportion of flexural bearing capacity is quantified and analyzed in order to better provide the theoretical basis for the reinforcement design of bridge. The load test and the contrast test can solve this problem. The article introduces the load test of this interchange, analyzes the test data, and puts forward the conclusion.