Inner truss type CFST L-shaped column and its construction method

A steel tube concrete and truss-type technology, applied in the field of special-shaped columns, to achieve the effects of increased bearing capacity, fast and convenient construction, and reduced effective width

Inactive Publication Date: 2017-11-24
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many problems in the existing CFST column

Method used

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  • Inner truss type CFST L-shaped column and its construction method
  • Inner truss type CFST L-shaped column and its construction method
  • Inner truss type CFST L-shaped column and its construction method

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Embodiment Construction

[0019] like image 3 , Figure 4a and Figure 4b As shown, the inner truss-type concrete-filled steel tube L-shaped column of the present invention mainly includes the outer-wrapped steel pipe 1, the inner-filled concrete 4 and the inner truss. Among them, the basic components of the inner truss are T-shaped steel 2 and strip 3. In this embodiment, there is a set of T-shaped steel flange plates welded vertically to form an inner truss subunit. In addition, there are 2 T-shaped steels, the webs of these two T-shaped steels are welded with strips, and the other end of the strips is welded to the T-shaped steel webs in the inner truss subunit.

[0020] like Figure 4b As shown, an L-shaped frame is formed after welding. In other words, the T-shaped steel and the inner truss subunits 2a are located at the three corners of the quadrangle, or in other words, at the three corners of a quadrangular column. from Figure 4a and Figure 4b It can be seen that there are two ∏-shap...

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Abstract

The invention discloses an inner truss-type concrete-filled steel tube L-shaped column and a construction method thereof, wherein the inner-truss-type steel tube concrete L-shaped column comprises outsourcing steel pipes, inner filling concrete and an inner truss; the inner truss comprises T-shaped steel, The inner truss subunit welded by T-shaped steel, and the slivers of the T-shaped steel web in the T-shaped steel web and the inner truss subunit overlapped and welded along the T-shaped steel longitudinally; the T-shaped steel and the inner truss The truss sub-units are located at the corners of the quadrilateral, and the cross-section of the outsourcing steel pipe is Γ-shaped or Π-shaped, and is welded and fixed with the flange plate of the T-shaped steel. In the present invention, the inner truss is tied at the corner of the special-shaped steel pipe, thereby reducing the effective width of the steel plate, providing a fulcrum for the out-of-plane deformation of the steel plate, improving the anti-instability ability of the steel plate and improving the hoop effect of the column, so that the steel pipe The bearing capacity of concrete special-shaped columns is significantly improved.

Description

technical field [0001] The invention relates to a special-shaped column, in particular to a steel pipe concrete special-shaped column. Background technique [0002] With the development of society and the gradual improvement of residents' living standards, residents generally hope that the four corners of the house can be smooth, neat and beautiful. This forms the design idea of ​​the special-shaped column structure. However, with the gradual increase of high-rise and ultra-high-rise buildings and the increase of the upper load, the bearing capacity of traditional reinforced concrete special-shaped columns can no longer meet the engineering requirements for bearing capacity. [0003] Compared with the traditional reinforced concrete structure, due to the hoop effect of the outer steel pipe on the concrete in the core area, the compressive bearing capacity of the column has been significantly improved. However, there are still many problems in the existing steel tube concre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04C3/36E04G21/00
Inventor 伍凯曹平周张贺徐方媛南洋
Owner HOHAI UNIV
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