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FRP composite spiral stirrup confined concrete column and compression design method thereof
The invention discloses an FRP composite spiral stirrup confined concrete column and a compression design method thereof. The method comprises the steps of setting FRP composite spiral stirrups, longitudinal bars and concrete; solving the problem of corrosion of ocean engineering structure ribs through the protruding corrosion resistance of the FRP ribs, where the FRP composite spiral stirrup comprises the inner FRP spiral stirrup and the outer FRP square stirrup, effective transverse stress transmission is established through effective binding between the stirrups, the mechanical property of the FRP ribs can be fully exerted, double constraint is provided for the core concrete, and the peak stress of the core concrete is greatly improved; analyzing constraint mechanisms of the FRP composite spiral stirrups on concrete in different areas, and proposing a constraint model and a bearing capacity calculation method of the FRP composite spiral stirrup confined concrete column; and after an accurate bearing capacity calculation method is obtained, providing the design method of the FRP composite spiral stirrup confined concrete column.
本发明公开了一种FRP复合螺旋箍筋约束混凝土柱及其受压设计方法，通过设置FRP复合螺旋箍筋、纵筋以及混凝土，利用FRP筋突出的耐腐蚀性，解决海洋工程结构筋材锈蚀的问题，FRP复合螺旋箍筋包括内部FRP螺旋箍筋和外部的FRP方形箍筋，该FRP复合螺旋箍筋形式通过箍筋间的有效绑扎，建立有效横向应力传递，能充分发挥FRP筋的力学性能，为核心混凝土提供“双重约束”，大幅度提升核心混凝土的峰值应力，并分析了FRP复合螺旋箍筋对不同区域混凝土的约束机理，提出FRP复合螺旋箍筋约束混凝土柱的约束模型及承载力计算方法，并在得到准确的承载力计算方法后提出一种FRP复合螺旋箍筋约束混凝土柱的设计方法。
FRP composite spiral stirrup confined concrete column and compression design method thereof
The invention discloses an FRP composite spiral stirrup confined concrete column and a compression design method thereof. The method comprises the steps of setting FRP composite spiral stirrups, longitudinal bars and concrete; solving the problem of corrosion of ocean engineering structure ribs through the protruding corrosion resistance of the FRP ribs, where the FRP composite spiral stirrup comprises the inner FRP spiral stirrup and the outer FRP square stirrup, effective transverse stress transmission is established through effective binding between the stirrups, the mechanical property of the FRP ribs can be fully exerted, double constraint is provided for the core concrete, and the peak stress of the core concrete is greatly improved; analyzing constraint mechanisms of the FRP composite spiral stirrups on concrete in different areas, and proposing a constraint model and a bearing capacity calculation method of the FRP composite spiral stirrup confined concrete column; and after an accurate bearing capacity calculation method is obtained, providing the design method of the FRP composite spiral stirrup confined concrete column.
本发明公开了一种FRP复合螺旋箍筋约束混凝土柱及其受压设计方法，通过设置FRP复合螺旋箍筋、纵筋以及混凝土，利用FRP筋突出的耐腐蚀性，解决海洋工程结构筋材锈蚀的问题，FRP复合螺旋箍筋包括内部FRP螺旋箍筋和外部的FRP方形箍筋，该FRP复合螺旋箍筋形式通过箍筋间的有效绑扎，建立有效横向应力传递，能充分发挥FRP筋的力学性能，为核心混凝土提供“双重约束”，大幅度提升核心混凝土的峰值应力，并分析了FRP复合螺旋箍筋对不同区域混凝土的约束机理，提出FRP复合螺旋箍筋约束混凝土柱的约束模型及承载力计算方法，并在得到准确的承载力计算方法后提出一种FRP复合螺旋箍筋约束混凝土柱的设计方法。
FRP composite spiral stirrup confined concrete column and compression design method thereof
一种FRP复合螺旋箍筋约束混凝土柱及其受压设计方法
ZHANG PU (author) / HU JUNMIN (author) / ZHAO JUN (author) / GAO DANYING (author) / LIU YE (author) / SHAMIM AHMET SHEIKH (author)
2022-02-01
Patent
Electronic Resource
Chinese
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