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目前国内有大量的高速公路需要改扩建,薄壁台式通道是高速公路通道桥的主要桥型之一。通过对某高速公路上此类桥梁的外观检测发现了很多病害,部分桥下净高不能满足附近村民生产、生活及防火的需要,桥下通行条件较差,需要改善;并且桥梁上部及下部均存在不同程度的病害,需要进行大修才能满足继续使用的要求。因此,针对此类桥梁在高速公路改建中遇到的这些问题进行深入研究和探讨是很有必要的,其研究结果可供类似工程参考借鉴。
At present, there are a large number of expressways in the country that need to be expanded and expanded. The thin-walled bench-top accessway is one of the major bridge types of the expressway access bridge. Through the appearance inspection of such bridges on a highway, many diseases have been found. Some of the bridges can not meet the production, living and fire prevention needs of nearby villagers. The conditions of access under the bridge are poor and need to be improved; and the upper and lower parts of the bridge There are different levels of disease, need to be overhauled to meet the requirements of continued use. Therefore, it is necessary to conduct deep research and discussion on these types of bridges encountered in the reconstruction of expressways. The results of this study can be used as a reference for similar projects.