Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prestressed unit type multi-direction-displacement comb plate expansion device
The invention provides a prestressed unit type multi-direction-displacement comb plate expansion device. The prestressed unit type multi-direction-displacement comb plate expansion device comprises at least one group of expansion modules arranged in an axial direction, wherein each group of expansion module comprises a prestressed bolt device, a mobile comb plate, a fixed comb plate and a stainless steel sheet; bolt holes are formed in both the fixed comb plates and the mobile comb plates; fixed nuts are arranged in the bolt holes; the fixed comb plates and the mobile comb plates are connected with embedded bars at the two ends of a bridge body expansion joint through fixing nuts in a locked way, respectively; the fixed comb plates and the mobile comb plates are engaged with each other; the prestressed bolt devices are arranged at the bottoms of the mobile comb plates and connected with the mobile comb plates through pre-tightening forces in a locked way; and the stainless steel sheets are lined at the bottoms of the fixed comb plates. According to the prestressed unit type multi-direction-displacement comb plate expansion device provided by the invention, a problem of longitudinal-displacement single form is solved by means of the prestressed bolt device; prestress is furthest applied to the mobile comb plates and the mobile comb plates can rotate for 360 degrees so that mobile comb plates are not prone to loosen; and impact forces on the comb plates and a concrete rigid member are buffered.
Prestressed unit type multi-direction-displacement comb plate expansion device
The invention provides a prestressed unit type multi-direction-displacement comb plate expansion device. The prestressed unit type multi-direction-displacement comb plate expansion device comprises at least one group of expansion modules arranged in an axial direction, wherein each group of expansion module comprises a prestressed bolt device, a mobile comb plate, a fixed comb plate and a stainless steel sheet; bolt holes are formed in both the fixed comb plates and the mobile comb plates; fixed nuts are arranged in the bolt holes; the fixed comb plates and the mobile comb plates are connected with embedded bars at the two ends of a bridge body expansion joint through fixing nuts in a locked way, respectively; the fixed comb plates and the mobile comb plates are engaged with each other; the prestressed bolt devices are arranged at the bottoms of the mobile comb plates and connected with the mobile comb plates through pre-tightening forces in a locked way; and the stainless steel sheets are lined at the bottoms of the fixed comb plates. According to the prestressed unit type multi-direction-displacement comb plate expansion device provided by the invention, a problem of longitudinal-displacement single form is solved by means of the prestressed bolt device; prestress is furthest applied to the mobile comb plates and the mobile comb plates can rotate for 360 degrees so that mobile comb plates are not prone to loosen; and impact forces on the comb plates and a concrete rigid member are buffered.
Prestressed unit type multi-direction-displacement comb plate expansion device
ZHENG WENFAN (Autor:in) / ZENG ZHILING (Autor:in) / HUANG SENQIANG (Autor:in)
02.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
E01D
BRIDGES
,
Brücken
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