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A platform for research: civil engineering, architecture and urbanism
High-strength concrete combined column with high-strength steel pipe constraint and built-in FRP pipes
The invention relates to a high-strength concrete combined column with high-strength steel pipe constraint and built-in FRP pipes. The high-strength concrete combined column comprises a high-strength steel pipe located on the outermost side, at least one FRP pipe located in the high-strength steel pipe and a high-strength concrete layer arranged between the outer wall of the FRP pipe and the inner wall of the high-strength steel pipe in a filling mode. A high-strength concrete core column is fixedly arranged in each FRP pipe, and the extending direction of the FRP pipes is parallel to the extending direction of the high-strength concrete layer. The high-strength steel pipe is located on the outermost side of the section, has high rigidity and plasticity energy dissipation capacity, can provide compression resistance and tensile resistance during bending, and can also enable a component to have good anti-seismic property. The core concrete column wrapped by the FRP pipes inside gives full play to the advantages of high tensile strength and anisotropy of a composite material, is not affected by axial compression, forms strong and continuous constraint on core concrete, and provides high axial bearing capacity and ductility for the component. The round FRP pipes are arranged in the concrete, and the problem that the composite material is poor in fireproof performance can be well solved.
本发明涉及一种高强钢管约束内置FRP管的高强混凝土组合柱，包括位于最外侧的高强钢管、位于高强钢管内的至少一个FRP管和填充在FRP管外壁和高强钢管内壁之间的高强混凝土层，每个FRP管内均固定设置有高强混凝土核心柱，FRP管延伸方向与高强混凝土层延伸方向平行。高强钢管位于截面最外侧，具有较大的刚度和塑性耗能能力，能够提供抗压和受弯时的抗拉，还可以使构件具有良好的抗震性能；而内部由FRP管包裹的核心混凝土柱则充分发挥了复材抗拉强度大，各向异性的优势，不受轴压的影响，对核心混凝土形成很强且持续的约束，为构件提供了较高的轴向承载力和延性。将圆FRP管配置在混凝土中，可以较好的解决复材防火性能差的问题。
High-strength concrete combined column with high-strength steel pipe constraint and built-in FRP pipes
The invention relates to a high-strength concrete combined column with high-strength steel pipe constraint and built-in FRP pipes. The high-strength concrete combined column comprises a high-strength steel pipe located on the outermost side, at least one FRP pipe located in the high-strength steel pipe and a high-strength concrete layer arranged between the outer wall of the FRP pipe and the inner wall of the high-strength steel pipe in a filling mode. A high-strength concrete core column is fixedly arranged in each FRP pipe, and the extending direction of the FRP pipes is parallel to the extending direction of the high-strength concrete layer. The high-strength steel pipe is located on the outermost side of the section, has high rigidity and plasticity energy dissipation capacity, can provide compression resistance and tensile resistance during bending, and can also enable a component to have good anti-seismic property. The core concrete column wrapped by the FRP pipes inside gives full play to the advantages of high tensile strength and anisotropy of a composite material, is not affected by axial compression, forms strong and continuous constraint on core concrete, and provides high axial bearing capacity and ductility for the component. The round FRP pipes are arranged in the concrete, and the problem that the composite material is poor in fireproof performance can be well solved.
本发明涉及一种高强钢管约束内置FRP管的高强混凝土组合柱，包括位于最外侧的高强钢管、位于高强钢管内的至少一个FRP管和填充在FRP管外壁和高强钢管内壁之间的高强混凝土层，每个FRP管内均固定设置有高强混凝土核心柱，FRP管延伸方向与高强混凝土层延伸方向平行。高强钢管位于截面最外侧，具有较大的刚度和塑性耗能能力，能够提供抗压和受弯时的抗拉，还可以使构件具有良好的抗震性能；而内部由FRP管包裹的核心混凝土柱则充分发挥了复材抗拉强度大，各向异性的优势，不受轴压的影响，对核心混凝土形成很强且持续的约束，为构件提供了较高的轴向承载力和延性。将圆FRP管配置在混凝土中，可以较好的解决复材防火性能差的问题。
High-strength concrete combined column with high-strength steel pipe constraint and built-in FRP pipes
一种高强钢管约束内置FRP管的高强混凝土组合柱
KANG LAN (author) / CHEN ZHIBANG (author)
2021-04-30
Patent
Electronic Resource
Chinese
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