Steel-epoxy mortar composite tube concrete combination column
An epoxy mortar and composite pipe technology, which is applied to columns, piers, pillars, etc., can solve problems such as inability to effectively confine concrete, concrete brittle failure, and insufficient deformation capacity of composite columns, so as to reduce construction costs, avoid brittle failure, and prevent The effect of bearing capacity degradation
Pending Publication Date: 2017-12-26
HUAQIAO UNIVERSITY
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Problems solved by technology
In addition, the thin-walled high-strength steel pipe cannot effectively restrain the concrete inside the steel pipe, causing the concrete to show brittle failure, resulting in insufficient deformation capacity of the composite column
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[0017] The specific implementation method of the present invention will be further described below in conjunction with the accompanying drawings.
[0018] refer to Figure 1 to Figure 2 , a steel-epoxy mortar composite pipe-concrete composite column, the composite column is composed of a high-strength thin-walled steel pipe 1 , a profiled steel plate 3 , epoxy mortar 2 and concrete 4 . The high-strength thin-walled steel pipe 1, the profiled steel plate 3 and the epoxy mortar 2 together constitute the outsourcing composite pipe of the composite column, wherein the thin-walled high-strength steel pipe 1 serves as the outer wall of the composite pipe, and the profiled steel plate 3 forms the inner wall of the composite pipe, The epoxy mortar 2 is filled between the outer wall and the inner wall; the concrete 4 is filled in the inner wall surrounded by the profiled steel plate 3; the average distance between the high-strength thin-walled steel pipe 1 and the profiled steel plate ...
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Abstract
The invention discloses a steel-epoxy mortar composite tube concrete combination column and a construction method thereof. The combination column comprises a high-strength thin-wall steel pipe, a profiled steel sheet, epoxy mortar and concrete, wherein an outer coating compound pipe of the combination column is formed by the high-strength thin-wall steel pipe, the profiled steel sheet and the epoxy mortar; the high-strength thin-wall steel pipe is arranged as an outer wall of the compound pipe; an inner wall of the compound pipe is formed by encircling of the profiled steel sheet; the part between the outer wall and the inner wall is filled with the epoxy mortar; the inner wall encircled by the profiled steel sheet is filled with concrete; the average distance between the high-strength thin-wall steel pipe and the profiled steel sheet is 3-5 times of the thickness of the high-strength thin-wall steel pipe. According to the steel-epoxy mortar composite tube concrete combination column, the combination column can be effectively prevented from bearing capacity reduction caused by the local buckling of the high-strength thin-wall steel pipe, the deformability of the combination column can be promoted, and also the consumption of the rolled steel can be reduced due to the usage of low-cost epoxy mortar, so that the cost of the combination column is reduced.
Description
technical field [0001] The invention belongs to the technical field of building structures, and in particular relates to a steel-epoxy mortar composite pipe-concrete composite column. Background technique [0002] The concrete-filled steel tube column is a new type of high-efficiency composite member developed in recent years, which consists of steel tubes and concrete inside the steel tubes. Through the exertion of combination, CFST can give full play to the material properties of both steel and concrete. In addition, the steel pipe can also be used as a template for concrete pouring, which greatly shortens the construction period. For CFST columns, under other conditions being the same, the higher the yield strength of the steel, the higher the bearing capacity of the column. Therefore, in the case of the same bearing capacity, the use of high-strength steel pipes can reduce the wall thickness of the steel pipes and save steel. However, when the wall thickness of the st...
Claims
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IPC IPC(8): E04C3/34
CPCE04C3/34
Inventor 胡红松王浩祚郭子雄王海峰
Owner HUAQIAO UNIVERSITY