钢筋混凝土桥梁火损检测与加固

摘要

Combining with the engineering examples,the paper introduces the damage features,the test methods,the contents and procedures of the reinforced concrete structures in fire accidents,undertakes the comprehensive test on the fire-damage bridges by adopting ISO 834 fire time,the curves of the temperature standards,the investigation of components＇ appearance,the comparison and analysis of the concrete rebound test,and the internal temperature field of components,provides the consolidation measures,and proves by the normal operation after the consolidation that the method has better effect.%结合工程实例,介绍了火灾钢筋混凝土结构的损伤特点,检测的方法、内容及程序,利用ISO 834火灾时间—温度标准曲线、构件外观调查、混凝土回弹检测对比分析及构件内部温度场对火损桥梁进行了综合检测,并给出加固措施,加固后桥梁正常运营情况表明此方法效果良好。