斜交混凝土梁桥病害分析及加固研究

Fault Analysis and Reinforcing Study of Oblique Concrete Beam Bridge

对一座斜交混凝土梁桥进行了现场安全检测,发现该桥面板存在贯穿裂缝、冻融损伤,桥墩有竖向和环向裂缝及露筋等病害。根据现场检测结果,提出了该类钢筋混凝土梁桥存在的典型病害形式,分析了病害产生的主要原因,对该桥总体技术状况进行了技术评定,并根据评定结果针对性地提出了梁桥的加固技术方案。该桥的检测、评定技术方法及加固方法对同类梁桥病害处理具有一定借鉴意义。

According to the field safety detection of an oblique concrete beam bridge, it is found that there are the faults of the through cracks and freeze-thaw damage on this bridge deck, and the vertical and ring cracks and the exposed reinforcement on the bridge piers. Based on the field detection result, the article puts forward the typical fault form existing in this kind of steel reinforced concrete beam bridge, analyzes the main cause of the fault, carries out the technical assessment of the overall technical status of this bridge, and specially puts forward the reinforcing technical scheme of beam bridge in the light of the assessing result. The detection, assessing technical method and reinforcing method of this bridge are referred for the fault treatment of the similar beam bridges.