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Manufacturing method of maintenance-free steel-composite material buckling restrained brace

A technology of composite materials and buckling constraints, applied in building components, earthquake resistance, etc.

Inactive Publication Date: 2015-07-15
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a maintenance-free steel-composite material buckling-restrained brace manufacturing method, aiming to solve the problem of the application of buckling-restrained braces in high-rise steel tower structures, bridge structures and other fields

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  • Manufacturing method of maintenance-free steel-composite material buckling restrained brace
  • Manufacturing method of maintenance-free steel-composite material buckling restrained brace
  • Manufacturing method of maintenance-free steel-composite material buckling restrained brace

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Embodiment Construction

[0028] In order to make the objectives, technical solutions, and advantages of the present invention clearer and more comprehensible, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0029] figure 1 Shows the flow of the vacuum introduction molding process provided by the present invention. For ease of description, only parts related to the present invention are shown.

[0030] The method for manufacturing the maintenance-free steel-composite buckling restraint support of the present invention, and the method for manufacturing the maintenance-free steel-composite buckling restraint support device includes the following steps:

[0031] Core material processing; paving bottom reinforcement materials;

[0032] Fill the core material into the mold, then spread the reinforcing material...

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Abstract

The invention discloses a manufacturing method of a maintenance-free steel-composite material buckling restrained brace. The method comprises the following steps of: manufacturing core material, and packaging the core material by reinforcing material; filling the core material into a mould; laying a vacuum bag and extracting air; leading resin into mould; and curing the product to obtain the finished product. The whole brace component is molded into a whole for one time by vacuum infusion; the condition that the axial force is mainly born by an inner core stress unit by a telescopic joint structure during the support work is guaranteed; and a support inner core steel core is packaged by glass fiber reinforced polymer (GFRP) composite material on the whole, so that the brace has the characteristic of corrosion resistance. By adopting a GFRP rectangular tube filling-free restraint yield section structure form, the buckling restrained brace has the characteristic of being light in weight.

Description

Technical field [0001] The invention belongs to the technical field of making buckling restrained supports, and in particular relates to a method for making maintenance-free steel-composite buckling restrained supports. Background technique [0002] Japan and the United States are the countries that have carried out research on structural control systems earlier. The complete component of buckling restraint supports first appeared in Japan. At that time, it was called unbonded support according to the composition characteristics of the support. In 1981, India also conducted related research. [0003] The United States began to apply this kind of support in engineering since the Northridge Earthquake, and it is called Buckling restrained Brace (BRB) according to the stress characteristics of the support. Although the research in the United States is a little late, it has developed rapidly relying on its economic and technological advantages. Since 1998, in its high-intensity seismic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/34E04B1/98
Inventor 董军张立伟彭洋池沛彭圣昊冯飞夏志远
Owner NANJING TECH UNIV
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