Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prefabricated hollow concrete-filled steel tube supporting member, inner supporting system and construction method
The invention belongs to the technical field of underground foundation pit engineering, and particularly relates to a prefabricated hollow concrete-filled steel tube supporting member and a construction method. The prefabricated hollow concrete-filled steel tube supporting member comprises steel tubes and end head steel structures; the end head steel structures are welded to the two ends of the steel tubes; filling concrete is poured in the steel tubes, and hollow parts penetrating in the supporting direction are arranged in the filling concrete; steel reinforcement frameworks and a pluralityof corrugated tubes are arranged in the filling concrete, and the two ends of the steel reinforcement frameworks are correspondingly connected with the two end head steel structures; and prestressed longitudinal bars are tensioned in the corrugated tubes, cement paste is poured into the corrugated tubes, and the two ends of the prestressed longitudinal bars extend out of the corrugated tubes and are anchored in the two end head steel structures. The invention further provides an inner supporting system and a construction method. The adopted fabricated inner support is formed by splicing the prefabricated hollow concrete-filled steel tube support members. The bearing capacity, the deformation resistance, the integrity and the joint rigidity of the fabricated support can be improved, and thefabricated support is convenient to disassemble and convenient to recycle, transport and install.
本发明属于地下基坑工程技术领域，具体涉及一种预制空心钢管混凝土支撑构件及施工方法，包括钢管和端头钢结构；钢管的两端均焊接有端头钢结构；钢管内浇筑有填充砼，填充砼内具有沿支撑方向贯穿的中空部；填充砼内配置有钢筋骨架和多根波纹管，钢筋骨架的两端分别与两端头钢结构连接；各波纹管内均张拉有预应力纵筋且灌注有水泥浆，预应力纵筋的两端均伸出波纹管并分别锚于两端头钢结构内；本发明还提供一种内支撑系统及施工方法，其采用的装配式内支撑由上述预制空心钢管混凝土支撑构件拼接而成。本发明能够提高装配式支撑的承载能力、抗变形能力、整体性以及节点刚度，且方便拆卸，便于循环使用、运输和安装。
Prefabricated hollow concrete-filled steel tube supporting member, inner supporting system and construction method
The invention belongs to the technical field of underground foundation pit engineering, and particularly relates to a prefabricated hollow concrete-filled steel tube supporting member and a construction method. The prefabricated hollow concrete-filled steel tube supporting member comprises steel tubes and end head steel structures; the end head steel structures are welded to the two ends of the steel tubes; filling concrete is poured in the steel tubes, and hollow parts penetrating in the supporting direction are arranged in the filling concrete; steel reinforcement frameworks and a pluralityof corrugated tubes are arranged in the filling concrete, and the two ends of the steel reinforcement frameworks are correspondingly connected with the two end head steel structures; and prestressed longitudinal bars are tensioned in the corrugated tubes, cement paste is poured into the corrugated tubes, and the two ends of the prestressed longitudinal bars extend out of the corrugated tubes and are anchored in the two end head steel structures. The invention further provides an inner supporting system and a construction method. The adopted fabricated inner support is formed by splicing the prefabricated hollow concrete-filled steel tube support members. The bearing capacity, the deformation resistance, the integrity and the joint rigidity of the fabricated support can be improved, and thefabricated support is convenient to disassemble and convenient to recycle, transport and install.
本发明属于地下基坑工程技术领域，具体涉及一种预制空心钢管混凝土支撑构件及施工方法，包括钢管和端头钢结构；钢管的两端均焊接有端头钢结构；钢管内浇筑有填充砼，填充砼内具有沿支撑方向贯穿的中空部；填充砼内配置有钢筋骨架和多根波纹管，钢筋骨架的两端分别与两端头钢结构连接；各波纹管内均张拉有预应力纵筋且灌注有水泥浆，预应力纵筋的两端均伸出波纹管并分别锚于两端头钢结构内；本发明还提供一种内支撑系统及施工方法，其采用的装配式内支撑由上述预制空心钢管混凝土支撑构件拼接而成。本发明能够提高装配式支撑的承载能力、抗变形能力、整体性以及节点刚度，且方便拆卸，便于循环使用、运输和安装。
Prefabricated hollow concrete-filled steel tube supporting member, inner supporting system and construction method
预制空心钢管混凝土支撑构件、内支撑系统及施工方法
OUYANG DONG (Autor:in) / LEI CHONG (Autor:in) / LIU GUOBAO (Autor:in) / LI CHENGLIANG (Autor:in) / ZHAO CHENYANG (Autor:in) / ZHANG JIANMING (Autor:in) / TAI JIAZUI (Autor:in) / LI HAO (Autor:in)
02.02.2021
Patent
Elektronische Ressource
Chinesisch
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