Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prefabricated FRP-UHPC-steel hollow combined segmental beam and construction method thereof
The invention discloses a prefabricated FRP (Fiber Reinforced Plastic)-UHPC (Ultra High Performance Concrete)-steel hollow combined segmental beam and a construction method thereof, the segmental beam adopts a prefabricated pouring method, the segmental beam is composed of beam segments and segment connecting nodes, the beam segments are composed of steel pipes, UHPC layers, annular FRP pipes and studs, and the steel pipes are connected with the UHPC layers. The section connecting joint is composed of a steel pipe, a UHPC layer, an annular FRP pipe, a connecting steel bar, a flange ring, a flange bolt and longitudinal FRP cloth. The section beam has the advantages that the FRP, the UHPC and the steel are combined, the combination mode can give full play to the excellent mechanical properties of the FRP, the UHPC and the steel, so that the design of the beam is slender, light and thin, the interior of the section beam is hollow, and the dead weight of the beam can be greatly reduced; the FRP and the UHPC adopted by the segmental beam are materials with excellent durability, so that the steel pipe can be well protected, the durability problem caused by steel corrosion of a steel bridge is well solved, the service life of the structure is greatly prolonged, and the whole life cycle cost of the structure is saved.
本发明公开了一种预制FRP‑UHPC‑钢空心组合节段梁及其施工方法，包括节段梁采用预制的浇筑方法，节段梁由梁节段和节段连接节点组成，梁节段由钢管、UHPC层、环向FRP管和栓钉组成，节段连接节点由钢管、UHPC层、环向FRP管、连接钢筋、法兰圈、法兰螺栓和纵向FRP布组成。本发明优点在于：本发明节段梁将FRP、UHPC和钢材三种建筑材料相结合，这种组合方式能够充分发挥FRP、UHPC和钢材各自优越的力学性能，从而使梁的设计纤细和轻薄，节段梁的内部中空，可以大幅降低梁的自重；本发明节段梁所采用的FRP和UHPC均是耐久性极好的材料，可以很好的保护钢管，很好的解决了钢桥梁因钢材锈蚀所产生的耐久性问题，使结构的使用寿命大幅提高，节约结构全寿命周期成本。
Prefabricated FRP-UHPC-steel hollow combined segmental beam and construction method thereof
The invention discloses a prefabricated FRP (Fiber Reinforced Plastic)-UHPC (Ultra High Performance Concrete)-steel hollow combined segmental beam and a construction method thereof, the segmental beam adopts a prefabricated pouring method, the segmental beam is composed of beam segments and segment connecting nodes, the beam segments are composed of steel pipes, UHPC layers, annular FRP pipes and studs, and the steel pipes are connected with the UHPC layers. The section connecting joint is composed of a steel pipe, a UHPC layer, an annular FRP pipe, a connecting steel bar, a flange ring, a flange bolt and longitudinal FRP cloth. The section beam has the advantages that the FRP, the UHPC and the steel are combined, the combination mode can give full play to the excellent mechanical properties of the FRP, the UHPC and the steel, so that the design of the beam is slender, light and thin, the interior of the section beam is hollow, and the dead weight of the beam can be greatly reduced; the FRP and the UHPC adopted by the segmental beam are materials with excellent durability, so that the steel pipe can be well protected, the durability problem caused by steel corrosion of a steel bridge is well solved, the service life of the structure is greatly prolonged, and the whole life cycle cost of the structure is saved.
本发明公开了一种预制FRP‑UHPC‑钢空心组合节段梁及其施工方法，包括节段梁采用预制的浇筑方法，节段梁由梁节段和节段连接节点组成，梁节段由钢管、UHPC层、环向FRP管和栓钉组成，节段连接节点由钢管、UHPC层、环向FRP管、连接钢筋、法兰圈、法兰螺栓和纵向FRP布组成。本发明优点在于：本发明节段梁将FRP、UHPC和钢材三种建筑材料相结合，这种组合方式能够充分发挥FRP、UHPC和钢材各自优越的力学性能，从而使梁的设计纤细和轻薄，节段梁的内部中空，可以大幅降低梁的自重；本发明节段梁所采用的FRP和UHPC均是耐久性极好的材料，可以很好的保护钢管，很好的解决了钢桥梁因钢材锈蚀所产生的耐久性问题，使结构的使用寿命大幅提高，节约结构全寿命周期成本。
Prefabricated FRP-UHPC-steel hollow combined segmental beam and construction method thereof
一种预制FRP-UHPC-钢空心组合节段梁及其施工方法
ZHANG SHISHUN (Autor:in) / CHEN DONG (Autor:in)
08.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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