某钢筋混凝土现浇连续空心板梁桥承载能力检测评定分析

Analysis of Bearing Capacity Testing and Evaluation for a Reinforced Concrete Cast-in-place Continuous Hollow Slab Beam Bridge

本文以某主梁存在大量超限裂缝的钢筋混凝土现浇连续空心板梁桥为工程背景,针对桥梁的检测结果,采用有限元分析检算与现场荷载试验相结合的方法,分析对比试验及理论数据并结合检算结果对桥梁承载能力进行综合评定,分析结果表明该桥梁承载能力不满足规范要求。该桥的检测评定方法可为同类桥梁的检测评估加固提供参考。

The reinforced concrete cast-in-place continuous hollow slab beam bridge with a large number of over limit cracks in a certain main beam was analyzed as an example.Based on the inspection results of the bridge,a combination of finite element analysis and on-site load testing was used to analyze and compare the experimental and theoretical data,and combined with the inspection results,the comprehensive evaluation of the bridge's bearing capacity was carried out.The analysis results showed that the bridge's bearing capacity did not meet the requirements of the specifications.The detection and evaluation method of this bridge can provide theoretical experience for the detection,evaluation,and reinforcement of similar bridges.