Abutment hidden expansion device and construction method thereof
A technology of telescopic device and abutment, which is applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of service life impact, less structural form, increased impact of heavy vehicles, etc., and achieve simple structure, reasonable design, and low construction cost low effect
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[0075] Such as figure 1 , figure 2 and image 3 The shown hidden expansion device at the abutment includes a prefabricated expansion joint arranged on the abutment expansion joint of the constructed bridge and an expansion joint filling layer 3 filled above the prefabricated expansion joint. It is the expansion joint left between the main girder 11 and the abutment 12 of the bridge being constructed; the bridge deck pavement structure is laid on the main girder 11, and the pavement pavement is laid on the outer side of the upper part of the abutment 12 and its The inner side of the upper part is the exposed section of the abutment. A reserved installation groove for the installation of the prefabricated telescopic assembly is formed between the bridge deck pavement structure and the road pavement layer. The longitudinal bridge length of the reserved installation groove is greater than The distance between the main beam 11 and the abutment 12, the section of the main beam 11...
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