A double-column underpinning method for steel reinforced concrete frame columns
A technology for steel reinforced concrete and concrete filled steel tubular columns, which is applied in the direction of construction and building structure, and can solve the problems of unclear force transmission, low safety and poor stability.
Active Publication Date: 2021-01-29
SHANGHAI CONSTR NO 1 GRP
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Problems solved by technology
[0004] The present invention aims at inventing a method of double-column underpinning steel-reinforced concrete frame columns in the reverse method, which solves the problems of poor stability, low safety, and unclear force transmission of the offset butt joint between two steel-filled steel-reinforced concrete frame columns and steel-reinforced concrete frame columns
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[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. The technical content and features of the present invention will be described in detail below by referring to the illustrated embodiments in conjunction with the accompanying drawings. It should be further noted that all the drawings are in very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. For the convenience of description, the "up" and "down" described below are consistent with the directions of up and down in the drawings, but this should not be a limitation of the technical solution of the present invention.
[0030] see Figure 1 to Figure 4 , the present embodiment provides a double-column underpinning method for steel-reinforced concrete frame columns. The lower part of the steel-reinforced concrete frame column ...
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The present invention provides a double-column underpinning steel-reinforced concrete frame column method in the reverse method. The two concrete-filled steel tube columns that have been constructed are measured by positioning; spaces for post-cast belts are respectively reserved or chiseled out in the steel tubes of the two steel tube concrete columns; Process the corresponding deviation correction device for the deviation of the bone concrete frame column; install the deviation correction device on the corresponding steel tube concrete column; check the space inside the circular steel pipe of the deviation correction device and the back of the corresponding steel tube concrete column Concrete is poured in the space of the pouring belt; the steel reinforced concrete frame column is hoisted so that the two connecting steel columns of the steel reinforced concrete frame column are respectively installed on the corresponding deviation correction device, and the axis of the connecting steel column is in line with the center circle of the corresponding deviation correction device The axis of the shaped steel pipe is coaxial, and the deviation correction device is fixed with the corresponding connecting steel column, which solves the problems of poor stability, low safety and unclear force transmission of the deviation joint between the double steel pipe concrete column and the steel reinforced concrete frame column .
Description
technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a double-column underpinning method for steel-reinforced concrete frame columns. Background technique [0002] At present, when the concrete-filled steel tube columns in the reverse basement are constructed to the upper structure, they usually need to be converted into steel-reinforced concrete frame columns, that is, double-cross conversion steel columns. If the upper load is large, it may be necessary to use two steel-reinforced concrete frame columns to jointly bear the load of the upper single steel-reinforced concrete frame column. butt. [0003] Therefore, how to provide a double-column underpinning method for steel-reinforced concrete columns, which can complete the offset and stable butt joint between two steel-filled concrete columns and steel-reinforced concrete frame columns, has become a technical problem that needs to be further improved an...
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IPC IPC(8): E04B1/35
CPCE04B1/35
Inventor 刘坚业绪盼鲍仕涛刘志豪刘畅
Owner SHANGHAI CONSTR NO 1 GRP