高速公路桥梁下火灾后加固处理技术与实例

该文总结了火灾中板梁桥结构最常见的病害和损伤,然后归纳分析了火场温度确定方法,混凝土和钢筋强度降低量的检测方法,以及在此基础上进行构件承载力降低程度的计算原则,并总结了针对这些损伤的常用加固方法。最后以两个工程为背景,分析了目前工程中常用的加固方法的实用性和优点。

After-fire Reinforcement Treatment Technique under Expressway Bridge and Cases

The article sums up the most common faults and damages of slab-beam bridge structure in fire,analyzes the temperature defining method of fire field,the inspecting test method of concrete and steel reinforcement strength reduction,and the calculation principle of reducing level of member bearing capacity on this basis,summarizes the common reinforcement methods for these damages,and finally analyzes the practicability and advantages of reinforcement methods commonly used in the present projects according to ...