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A platform for research: civil engineering, architecture and urbanism
Novel external prestressed assembly for prestressed box girder
The invention provides a novel external prestressed assembly for a prestressed box girder. The assembly comprises an external cable body and an anchoring system, and is characterized in that the external cable body comprises a main sleeve, a plurality of small sleeves arranged in the main sleeve, a plurality of steel strands arranged in the small sleeves and twisted with one another, cement pastefilled between the main sleeve and the small sleeves, and grease filled between the small sleeves and the steel strands. Multiple corrosion prevention of the external steel strands can be achieved, later cable replacement is facilitated, and the external prestressed assembly has good popularization and practical value.
本发明提供了一种新型预应力箱梁体外预应力组件，包括体外索、锚固系统，其特征在于：所述体外索包括总套管，设置在总套管内的多根小套管，设置在小套管内、相互缠绞的多根钢绞线，填充于总套管与小套管之间的水泥浆，填充于小套管与钢绞线之间的油脂。本发明预应力箱梁体外预应力组件可以实现外束钢绞线多重防腐和便于后期换索，具有较好的推广和实用价值。
Novel external prestressed assembly for prestressed box girder
The invention provides a novel external prestressed assembly for a prestressed box girder. The assembly comprises an external cable body and an anchoring system, and is characterized in that the external cable body comprises a main sleeve, a plurality of small sleeves arranged in the main sleeve, a plurality of steel strands arranged in the small sleeves and twisted with one another, cement pastefilled between the main sleeve and the small sleeves, and grease filled between the small sleeves and the steel strands. Multiple corrosion prevention of the external steel strands can be achieved, later cable replacement is facilitated, and the external prestressed assembly has good popularization and practical value.
本发明提供了一种新型预应力箱梁体外预应力组件，包括体外索、锚固系统，其特征在于：所述体外索包括总套管，设置在总套管内的多根小套管，设置在小套管内、相互缠绞的多根钢绞线，填充于总套管与小套管之间的水泥浆，填充于小套管与钢绞线之间的油脂。本发明预应力箱梁体外预应力组件可以实现外束钢绞线多重防腐和便于后期换索，具有较好的推广和实用价值。
Novel external prestressed assembly for prestressed box girder
一种新型预应力箱梁体外预应力组件
TANG JIQIANG (author) / WANG ZHIQUN (author) / HU LI (author) / LIANG JUNJIE (author) / DONG XIAOBING (author)
2020-08-07
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
PRESTRESSED GIRDER AND MANUFACTURING METHOD OF PRESTRESSED GIRDER
| European Patent Office | 2017
PRESTRESSED GIRDER AND MANUFACTURING METHOD OF PRESTRESSED GIRDER
European Patent Office | 2017