摘要
某跨线曲线连续箱梁桥的桥跨正下方发生了火灾事故,梁体被大火熏黑,火灾事故对桥梁损伤不明,但由于燃烧时间比较长,桥梁的承载能力可能会降低。为全面获得桥梁的既有承载能力及结构损伤状况,采用多种手段及方法对该桥进行综合评定。检测结果表明火灾事故并未对该桥跨承载能力产生严重影响,尚不影响结构安全,但火灾事故对桥梁结构耐久性能的影响需进一步研究。
As a fire accident happened beneath the curved box girder overpass,with the girder being blackened and the damage to the bridge structure by fire accident being unknown,while due to the long combustion time,the bearing capacity of the bridge maybe reduced,and in order to fully obtain the existing bearing capacity and structure damage of the bridge,a variety of means and methods have been adopted for the comprehensive evaluation of the bridge. The test results have shown that the fire accident has not seriously affected the bearing capacity of the bridge with the structural safety not being affected,however,the impact on the durability of the bridge structure by the fire accident should be further studied.
出处
《广东公路交通》
2016年第1期37-41,共5页
Guangdong Highway Communications
关键词
曲线连续箱梁桥
火灾事故
桥梁损伤
承载能力
检测评定
curved continuous box-girder bridge
fire disaster
bridge damage
bearing capacity
inspection and evaluation
