Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength concrete composite column with crossed double-spiral stirrup steel and construction method
The invention provides a high-strength concrete composite column with crossed double-spiral stirrup steel. The high-strength concrete composite column is composed of a prefabricated high-strength concrete shell, an internal reinforcement cage and core cast-in-place concrete, wherein the prefabricated high-strength concrete shell is of a long and straight hollow structure formed by pouring high-strength concrete; a plurality of first longitudinal bars and outer spiral stirrups wrapping the outer sides of the first longitudinal bars are arranged in the high-strength concrete; the internal reinforcement cage comprises a plurality of second longitudinal bars arranged in the hollow part of the prefabricated high-strength concrete shell and inner spiral stirrups wrapping the outer sides of the second longitudinal bars; the first longitudinal bars and the second longitudinal bars are parallel to the length direction of the prefabricated high-strength concrete shell; and the core cast-in-place concrete is poured in the hollow part of the prefabricated high-strength concrete shell. The invention further provides a construction method of the column. Bursting damage of the column in the high-temperature environment is restrained through the restraint effect of the double layers of spiral stirrups on the inner concrete and the outer concrete. The high-strength concrete composite column is high in bearing capacity, obvious in anti-cracking performance, excellent in durability and fire resistance and convenient and fast to construct.
一种带交叉双螺旋箍筋钢的高强混凝土叠合柱，由预制高强混凝土外壳、内部钢筋笼和核心现浇混凝土三部分组成，其中预制高强混凝土外壳为由高强混凝土浇筑成的长直中空结构，在高强混凝土内布设有若干纵筋一以及包覆于纵筋一外侧的外螺旋箍筋，内部钢筋笼包括设置于预制高强混凝土外壳中空部分的若干纵筋二和包裹于纵筋二外侧的内螺旋箍筋，其中纵筋一和纵筋二均与预制高强混凝土外壳的长度方向平行，核心现浇混凝土浇筑于预制高强混凝土外壳的中空部分。本发明还提供了该柱的施工方法，本发明通过双层螺旋箍筋对内外混凝土的约束作用抑制柱在高温环境中的爆裂破坏，本发明承载力高，抗裂性能明显，耐久及耐火性能优良，且施工便捷。
High-strength concrete composite column with crossed double-spiral stirrup steel and construction method
The invention provides a high-strength concrete composite column with crossed double-spiral stirrup steel. The high-strength concrete composite column is composed of a prefabricated high-strength concrete shell, an internal reinforcement cage and core cast-in-place concrete, wherein the prefabricated high-strength concrete shell is of a long and straight hollow structure formed by pouring high-strength concrete; a plurality of first longitudinal bars and outer spiral stirrups wrapping the outer sides of the first longitudinal bars are arranged in the high-strength concrete; the internal reinforcement cage comprises a plurality of second longitudinal bars arranged in the hollow part of the prefabricated high-strength concrete shell and inner spiral stirrups wrapping the outer sides of the second longitudinal bars; the first longitudinal bars and the second longitudinal bars are parallel to the length direction of the prefabricated high-strength concrete shell; and the core cast-in-place concrete is poured in the hollow part of the prefabricated high-strength concrete shell. The invention further provides a construction method of the column. Bursting damage of the column in the high-temperature environment is restrained through the restraint effect of the double layers of spiral stirrups on the inner concrete and the outer concrete. The high-strength concrete composite column is high in bearing capacity, obvious in anti-cracking performance, excellent in durability and fire resistance and convenient and fast to construct.
一种带交叉双螺旋箍筋钢的高强混凝土叠合柱，由预制高强混凝土外壳、内部钢筋笼和核心现浇混凝土三部分组成，其中预制高强混凝土外壳为由高强混凝土浇筑成的长直中空结构，在高强混凝土内布设有若干纵筋一以及包覆于纵筋一外侧的外螺旋箍筋，内部钢筋笼包括设置于预制高强混凝土外壳中空部分的若干纵筋二和包裹于纵筋二外侧的内螺旋箍筋，其中纵筋一和纵筋二均与预制高强混凝土外壳的长度方向平行，核心现浇混凝土浇筑于预制高强混凝土外壳的中空部分。本发明还提供了该柱的施工方法，本发明通过双层螺旋箍筋对内外混凝土的约束作用抑制柱在高温环境中的爆裂破坏，本发明承载力高，抗裂性能明显，耐久及耐火性能优良，且施工便捷。
High-strength concrete composite column with crossed double-spiral stirrup steel and construction method
一种带交叉双螺旋箍筋钢的高强混凝土叠合柱及施工方法
YANG YONG (Autor:in) / SUN XINGJIE (Autor:in) / XUE YICONG (Autor:in) / FENG SHIQIANG (Autor:in) / HUANG BO (Autor:in) / YANG ZHENG (Autor:in)
28.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
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