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Steel tube and core tube mixed structure

A hybrid structure and core tube technology, applied in building construction, construction, etc., can solve the problems of reduced lateral stiffness, ductility and energy dissipation capacity of the structure, increased construction difficulty and cost, unsuitable welding quality guarantee, etc., and achieves hysteresis. The effect of full curve, high bearing capacity and high initial stiffness

Inactive Publication Date: 2015-11-18
GUANGZHOU UNIVERSITY
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Problems solved by technology

However, under the action of natural disasters such as earthquakes and hurricanes, the structure enters an elastic-plastic state or a plastic state. At this time, the interaction force between the steel pipe steel column and the reinforced steel beam is very large. It is difficult to ensure that the steel pipe steel column Cooperative work with steel beams, and once the connection between steel pipe steel columns and reinforced steel beams is damaged, the lateral stiffness, ductility and energy dissipation capacity of the structure will be significantly reduced, and even lead to the collapse of the entire structure
In addition, the steel bars in the steel beams in the traditional connection and the steel pipes in the steel pipes and steel columns need to be welded on site, the welding quality is not suitable to be guaranteed, and the workload of on-site welding is large, which increases the difficulty and cost of construction

Method used

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  • Steel tube and core tube mixed structure
  • Steel tube and core tube mixed structure
  • Steel tube and core tube mixed structure

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with drawings and embodiments.

[0019] Such as Figure 1 to Figure 4 The steel pipe core tube hybrid structure shown includes steel columns 1, steel beams 2, two equilateral angle steels 3, two unequal angle steels 4, overhanging end plates 5, high-strength bolts 6, and concrete 7, in which:

[0020] The steel column 1 is a steel pipe, and the flange of the steel column 1 has 8 bolt holes; the steel beam 2 is an H-shaped steel, including the upper and lower flanges and the web in the middle, and the upper and lower flanges at the proximal end of the steel beam 2 are respectively opened. There are 4 bolt holes; the overhanging end plate 5 has 8 bolt holes; the two unequal angle steels 4 are the top angle steel 41 and the bottom angle steel 42 respectively, and the top angle steel 41 and the bottom angle steel 42 are connected with the overhanging end plate 5 Two holes are opened on the side, and four ...

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Abstract

The invention discloses a core tube mixed structure. The core tube mixed structure comprises a steel column, a steel beam, two pieces of equal-side angle steel, two pieces of non-equal-side angle steel, outwards-extending end plates, high-strength bolts and concrete. The core tube mixed structure has the advantages of being large in initial stiffness, high in yield strength and good in earthquake resistance and has a saturated hysteretic curve.

Description

technical field [0001] The invention belongs to the technical field of structural engineering steel structures, and in particular relates to a steel pipe core tube hybrid structure. Background technique [0002] At present, the joint method between the steel concrete column (the inner steel pipe is steel pipe) and the steel concrete beam is as follows: the steel pipe in the steel pipe concrete column is provided with a ring plate at the upper flange of the steel beam, the steel beam flange in the steel beam is welded to the ring plate, and the steel bar in the steel beam Through section steel, partly bent around the steel pipe. The construction unit of this kind of joint form must open holes for the steel pipes to pass through the steel bars in the processing plant or on site. The opening of the steel pipe caused damage to the column section, and the construction period was long. [0003] In the past engineering practice, it is common practice to weld studs on the steel pi...

Claims

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Application Information

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IPC IPC(8): E04B1/30E04B1/58
Inventor 刘坚周观根陈原童华炜毛捷李东伦潘澎陈凡
Owner GUANGZHOU UNIVERSITY
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