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在公路与城市桥梁结构中,伸缩装置对于车辆通过桥面的能力,对于维护桥梁使用年限和行车安全都有重要作用。本文在调查我国部分实桥伸缩缝装置现状的基础上,综合国内外有关的文献和资料,对现有使用的各类桥梁伸缩装置的构造、优缺点、适用范围等作了简要介绍,对伸缩装置的应用发展作了简略概述。文末还对未来桥梁伸缩缝的处理进行了探索和展望。
In highway and urban bridge structures, the ability of the telescopic device to pass the bridge deck has an important role in maintaining the useful life of the bridge and driving safety. Based on the investigation of the status quo of some real bridge expansion joints in our country and based on the relevant literature and materials at home and abroad, this paper briefly introduces the structure, advantages and disadvantages, applicable scopes and so on of various types of existing bridge expansion joints. The application of the device made a brief overview. At the end of the paper, the future bridge expansion joints are also explored and prospected.