Cast-in-site column with column cap and construction method

A construction method and technology for cast-in-place columns, which are applied in the field of cast-in-place reinforced concrete columns, can solve the problems of difficulty in tying stirrups, difficulty in pouring and tamping, and large safety factor of column sections, so as to reduce construction costs, improve anchoring performance, and improve The effect of the safety factor

Active Publication Date: 2013-05-08
杨众 +1
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  • Abstract
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  • Application Information

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Problems solved by technology

[0002] According to the seismic codes of building structures, the principle of seismic design is "strong joints, weak components" to avoid the failure of joints before components, and a large number of tests have shown that increasing the column section of beam-column joints is the most effective way to increase the shear strength of joints. However, the columns in traditional beam-column joints generally have the

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  • Cast-in-site column with column cap and construction method
  • Cast-in-site column with column cap and construction method
  • Cast-in-site column with column cap and construction method

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[0040] see Figure 1 to Figure 6 , in an embodiment of a cast-in-place column with a column cap provided by the present invention, it includes a concrete column body 1 and a steel bar 2 embedded in the column body 1, and the column body 1 is connected with the end of the external prefabricated superimposed beam body. A column cap 3 is provided at the joint, and the cross-sectional width of the column cap 3 is greater than that of the column body 1 , and the enlarged cross-sectional portion of the column cap 3 supports the end of the prefabricated beam. In the present invention, a column cap 3 is arranged on the top of the column body 1, and the column cap 3 is convenient for the prefabricated beam to rest thereon, which is convenient for construction, and simultaneously solves the problem of shear weakening of the end section of the prefabricated beam. After the column and precast beam are poured together, the shear capacity of the joint is greatly improved and the seismic per...

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Abstract

The invention discloses a cast-in-site column with a column cap and a construction method. The cast-in-site column comprises a concrete column body and reinforcements embedded in the column body, and is characterized in that the column cap is arranged at a joint of the end of an external precast superposed beam on the column body; the width of the section of the column cap is larger than that of the section of the column body; and the end of the precast beam is supported by the column cap. By adoption of the technology, the section of a core section area of a beam column joint can be enlarged, so that the shear-bearing capacity of the joint is greatly improved, and the joint is not damaged prior to a member during an earthquake.

Description

technical field [0001] The invention relates to a building column, in particular to a cast-in-place reinforced concrete column with a column cap in a prefabricated cast-in-place structure. Background technique [0002] According to the seismic code of building structures, the principle of seismic design is "strong joints and weak components" to avoid joint failure before components. A large number of tests have shown that increasing the column section of beam-column joints is the most effective way to improve the shear strength of joints. In traditional beam-column joints, the columns generally have the same section as the column body, and the reinforcement at the beam-column joints is dense, the stirrups are difficult to bind, and the concrete pouring and tamping is difficult, and in the cast-in-place reinforced concrete structure, the beams and columns are usually poured at the same time. , it is difficult to use high-grade concrete different from beams for columns and joi...

Claims

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Application Information

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IPC IPC(8): E04B1/58E04B1/41E04C3/34E04G21/00E04B1/98
Inventor 杨峰
Owner 杨众
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