四川某高速桥梁突发落梁事件特殊检查及评估

Special Inspection and Evaluation of Sudden Falling Beam on a High-speed Bridge in Sichuan Province

本文就以四川某在建高速匝道桥吊装过程中发生侧翻落梁砸伤运营桥梁的突发事件为案例,介绍了就桥梁发生落梁突发事件后对桥梁结构的受损状况的检查内容、评估流程,通过检测结果对桥梁技术状况和承载能力进行评定分析,并提出相关的评估结论及建议,为后续营运过程中的养护处治维修提供参考。

This paper takes an emergency incident in which a high-speed on-ramp bridge under construction in Sichuan Province was damaged by a rollover beam during the lifting process as a case.It introduces the inspection content and evaluation process of the damaged condition of the bridge structure after the accident,evaluates and analyzes the technical condition and carrying capacity of the bridge through the test results,and puts forward relevant evaluation conclusions and suggestions.It provides reference for the maintenance treatment and maintenance in the subsequent operation process.