高速公路通道桥火灾后的检测评估

Inspection and Assessment of an Expressway Underpass Bridge After Fire Damage

高速公路上的桥梁遭受火灾影响的现象逐渐增多。桥梁遭受火灾后,对结构的承载能力、运营安全等都会带来不良影响。介绍某高速公路通道桥遭受火灾后采取的一系列检测方法,检测结果认为,该桥虽然遭受火灾影响,但对受火灾损伤区域进行加固处理后,仍然可满足行车要求。

The phenomenon of bridges on expressways subjected to fire damage is on the gradual increase and the load-carrying capacity and safety operation of the structures of the bridges will be adversely influenced once the bridges are hit by fire. This paper presents a series of inspection and testing methods adopted for an expressway underpass bridge after fire damage. The results of the inspection and testing conclude that though the bridge is influenced by the fire, the bridge can still meet traffic requirements after the fire damaged parts on the bridge are strengthened.