Novel bridge assembly type seamless expansion joint structure

The invention discloses a novel bridge assembly type seamless expansion joint structure which comprises an assembly type seamless expansion joint prefabricated elastic body poured with a polyurethane modified material, a steel plate playing a role in preventing bottom layer reflection cracks is arra...

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Bibliographic Details
Main Authors QIN LINJING, YANG RUOCHONG
Format Patent
LanguageChinese
English
Published 17.05.2024
Subjects
ASSEMBLY OF BRIDGES
CONSTRUCTION OF BRIDGES
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
FIXED CONSTRUCTIONS
OR VIADUCTS
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Summary:The invention discloses a novel bridge assembly type seamless expansion joint structure which comprises an assembly type seamless expansion joint prefabricated elastic body poured with a polyurethane modified material, a steel plate playing a role in preventing bottom layer reflection cracks is arranged in a prefabricated body, and rubber layer structures for preventing the stress concentration phenomenon are arranged at the edges of the two sides of the steel plate. A silicone adhesive joint filling material is adopted to connect an original bridge deck pavement structure and a prefabricated body, and a polyethylene backing material is adopted to serve as a cushion layer below silicone adhesive. A leveling layer is arranged below an original bridge deck pavement prefabricated body to cope with the uneven pavement phenomenon existing in the actual working condition, and the leveling layer is made of resin concrete with good rebound resilience. The bridge deck structure has the effects of optimizing the bridge
Bibliography:Application Number: CN202410254191