Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Existing hollow board beam bridge bearing separation consolidating structure and construction method
The invention discloses a structure for consolidating existing hollow board beam bridge bearing separation with a board beam formed by multiple hollow boards, and a construction method thereof. Concrete of a bridge deck cast-in-situ layer, a hinged joint and hollow board roofs on each beam end is chiseled off; the bridge deck cast-in-situ layer, the hinged joint and hollow board end part hollow parts, which are subjected to concrete chiseling, are cast by steel fiber concrete at a time to form an end cross beam; prestressed reinforcement is arranged in the end beam; each beam end is supported by two bearings. A reinforced hollow board beam bridge beam end support system is changed from a multiple indeterminate structure to a statically determinate structure, and the bearings are clear in force bearing and are involved in force bearing, so that the bearing separation problem is solved fundamentally; the integral rigidity of the hollow boards is improved, the force bearing is uniform, the local stress of each hinged joint on one beam end is reduced, each hinged joint is not easy to damage, the occurrence of the single board force-bearing phenomenon is avoided, and the service life of a bridge is effectively ensured.
Existing hollow board beam bridge bearing separation consolidating structure and construction method
The invention discloses a structure for consolidating existing hollow board beam bridge bearing separation with a board beam formed by multiple hollow boards, and a construction method thereof. Concrete of a bridge deck cast-in-situ layer, a hinged joint and hollow board roofs on each beam end is chiseled off; the bridge deck cast-in-situ layer, the hinged joint and hollow board end part hollow parts, which are subjected to concrete chiseling, are cast by steel fiber concrete at a time to form an end cross beam; prestressed reinforcement is arranged in the end beam; each beam end is supported by two bearings. A reinforced hollow board beam bridge beam end support system is changed from a multiple indeterminate structure to a statically determinate structure, and the bearings are clear in force bearing and are involved in force bearing, so that the bearing separation problem is solved fundamentally; the integral rigidity of the hollow boards is improved, the force bearing is uniform, the local stress of each hinged joint on one beam end is reduced, each hinged joint is not easy to damage, the occurrence of the single board force-bearing phenomenon is avoided, and the service life of a bridge is effectively ensured.
Existing hollow board beam bridge bearing separation consolidating structure and construction method
XUE XINGWEI (Autor:in) / BAO LONGSHENG (Autor:in) / SONG FUCHUN (Autor:in)
06.05.2015
Patent
Elektronische Ressource
Englisch
IPC:
E01D
BRIDGES
,
Brücken
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