公路桥梁板式橡胶支座病害原因及处治措施

Causes and Treatment Measures for Laminated Rubber Bearing Diseases of Highway Bridges

通过对广东省高速公路桥梁板式橡胶支座的检查,发现此类支座主要存在严重剪切变形、脱空、开裂、串位等病害。分析了病害产生的原因和机理,并提出了相应的预防措施,对于不满足使用要求的支座,则借助顶升技术予以维修或更换。分析结果为桥梁板式橡胶支座的设计、施工和养护提供了技术参考和经验。

According to inspections of laminated rubber bearings of highway bridges in Guangdong Province, the diseases existed in this kind of bearings are mainly including serious shear deformation, disengaging, cracking and replacement, etc. In this article, the formation causes and mechanism of diseases in laminated rubber bearings have been analyzed and the corresponding preventive measures have been proposed. Moreover, those substandard bearings can be repaired or replaced by Jacking-up Technique. The research results can provide reference and support for the design, construction and maintenance of laminated rubber bearings of highway bridges.