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- METHOD FOR CONNECTION STRUCTURE FOR INTERNALLY CONFINED HOLLOW RC COLUMN-FOUNDATION CONNECTION REINFORCED WITH EXTERNAL TUBE
- METHOD FOR CONNECTION STRUCTURE FOR INTERNALLY CONFINED HOLLOW RC COLUMN-FOUNDATION CONNECTION REINFORCED WITH EXTERNAL TUBE
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机译：-外部管加强的内部约束空心RC柱-基础连接的连接结构方法
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摘要
The present invention relates to a structure of an internally constrained hollow reinforced concrete column-foundation joint reinforced by an external tube or the like, and a method of constructing the same, wherein a hollow hollow section is formed in a concrete body in which axial reinforcement rods and transverse reinforcing bars are laid, And an inner constraining hollow reinforced concrete column for restraining the concrete body by joining an inner steel pipe to an inner side surface of the concrete body; The axial main shaft of the concrete body extends to the base portion and is bound to the load bearing reinforcing bars of the base portion; And an outer tube which is formed of a FRP sheet or a steel plate and is provided at a joint portion between the base portion and the internally constrained hollow reinforced concrete column and which is installed to surround the outer circumferential surface of the joint portion of the internally constrained hollow reinforced concrete column, And a hybrid cross section that can prevent the coating of the outermost concrete of the column from being detached, so that the reinforcing bars can be sufficiently covered with the concrete, so that the structural performance can be improved. Thus, in the plastic hinges of the piers, Sufficient plastic displacement can be generated to improve the seismic performance, and it is possible to selectively reinforce only the structurally weak portions, thereby enabling an economical and effective sectional design.
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