摘要
通过某高速公路两座桥梁的“疑似铰缝损坏”案例,分析了这种因设计方案先天不足和维修施工质量控制不到位而导致的病害发生机理,并对采取这种维修形式后的板梁荷载横向分布进行了简单的受力分析,得出了需要完善设计方案和关注铰缝维修重点质量控制环节,以及对于这种病害应该避免和一般铰缝损坏发生混淆的结论。
Based on the case of‘suspected hinge joint damage’of two bridges in an expressway,this paper analyzed the mechanism of the distress caused by‘congenital deficiency’of design scheme and poor quality control of maintenance,and made a simple stress analysis on the transverse load distribution of plate girder after adopting this maintenance form.It could be concluded that it was necessary to improve the design scheme and pay attention to the key quality of hinge joint maintenance.The distress should be distinguished with the general hinge joint damage.
出处
《上海公路》
2020年第4期56-59,I0006,共5页
Shanghai Highways
关键词
空心板梁
铰缝
刚度差异
应力集中
hollow slab beam
hinge joint
stiffness difference
stress concentration
