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Reinforced concrete combination column containing mixed steel bars and construction method
The invention discloses a reinforced concrete combination column containing mixed steel bars and a construction method, and belongs to the field of building structures. The concrete combination column with the reinforced steel bar assembly is introduced, and stripping and crushing behaviors of ultra-high performance concrete in the corrugated steel pipe are limited; the embedded steel bar is laterally supported by the concrete in the pipe and the external corrugated steel pipe, and is difficult to bend under the action of pressure, so that the pressure bearing capacity of the steel bar is exerted, and the ductility of the steel bar is improved. On the other hand, due to the concave-convex corrugation shape inside and outside the corrugated steel pipe, a strong interlocking effect is achieved between the corrugated steel pipe and the concrete, and the pipeline is prevented from being separated from the concrete. According to the ultra-high performance concrete, under the double constraints of the corrugated steel pipes and the steel bars, transverse expansion deformation is effectively restrained, and the strength and ductility are also greatly improved. The problem that longitudinal steel bars of a common reinforced concrete column are pressed and bent, and consequently the column loses efficacy is solved.
本发明公开了一种含有混合钢筋的钢筋混凝土组合柱及施工方法，属于建筑结构领域。本发明引进了增强钢筋组件的混凝土组合柱，波纹钢管内超高性能混凝土的剥落与压碎行为受到限制；内嵌钢筋受到管内混凝土与外部波纹钢管的侧向支撑，在受压作用下难以发生屈曲现象，从而保证了钢筋受压承载力的发挥和延性的提升。另一方面，由于波纹钢管内外凹凸的波纹形状，使波纹钢管与混凝土之间有很强的互锁作用，避免了管道与混凝土分离。本发明中的超高性能混凝土在波纹钢管和钢筋的双重约束下，横向膨胀变形得到有效的抑制，强度和延性也得到大幅提升。发明解决了普通钢筋混凝土柱纵向钢筋受压屈曲，从而导致的柱子失效问题。
Reinforced concrete combination column containing mixed steel bars and construction method
The invention discloses a reinforced concrete combination column containing mixed steel bars and a construction method, and belongs to the field of building structures. The concrete combination column with the reinforced steel bar assembly is introduced, and stripping and crushing behaviors of ultra-high performance concrete in the corrugated steel pipe are limited; the embedded steel bar is laterally supported by the concrete in the pipe and the external corrugated steel pipe, and is difficult to bend under the action of pressure, so that the pressure bearing capacity of the steel bar is exerted, and the ductility of the steel bar is improved. On the other hand, due to the concave-convex corrugation shape inside and outside the corrugated steel pipe, a strong interlocking effect is achieved between the corrugated steel pipe and the concrete, and the pipeline is prevented from being separated from the concrete. According to the ultra-high performance concrete, under the double constraints of the corrugated steel pipes and the steel bars, transverse expansion deformation is effectively restrained, and the strength and ductility are also greatly improved. The problem that longitudinal steel bars of a common reinforced concrete column are pressed and bent, and consequently the column loses efficacy is solved.
本发明公开了一种含有混合钢筋的钢筋混凝土组合柱及施工方法，属于建筑结构领域。本发明引进了增强钢筋组件的混凝土组合柱，波纹钢管内超高性能混凝土的剥落与压碎行为受到限制；内嵌钢筋受到管内混凝土与外部波纹钢管的侧向支撑，在受压作用下难以发生屈曲现象，从而保证了钢筋受压承载力的发挥和延性的提升。另一方面，由于波纹钢管内外凹凸的波纹形状，使波纹钢管与混凝土之间有很强的互锁作用，避免了管道与混凝土分离。本发明中的超高性能混凝土在波纹钢管和钢筋的双重约束下，横向膨胀变形得到有效的抑制，强度和延性也得到大幅提升。发明解决了普通钢筋混凝土柱纵向钢筋受压屈曲，从而导致的柱子失效问题。
Reinforced concrete combination column containing mixed steel bars and construction method
一种含有混合钢筋的钢筋混凝土组合柱及施工方法
SHI QINGXUAN (author) / LI XUEMEI (author) / WANG PENG (author) / WANG QIUWEI (author) / TAO YI (author)
2022-09-02
Patent
Electronic Resource
Chinese
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