Fiberglass-reinforced plastics (FRP) section bar buckling-resisting supporting structure

A technology of anti-buckling bracing and profiles, applied in earthquake-proofing, building components and other directions, can solve the problems of limiting the popularization and application of anti-buckling bracing, self-heavy, slow construction, etc., to facilitate large-scale industrialized rapid production, high production efficiency, and improve seismic performance effect

Active Publication Date: 2013-07-24
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-buckling brace in the form of concrete filled steel pipe has better restraint effects, but it has disadvantages such as slow construction and high self-weight. The reinforced concrete anti-buckling brace has problems such as a decrease in stiffness due to concre

Method used

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  • Fiberglass-reinforced plastics (FRP) section bar buckling-resisting supporting structure
  • Fiberglass-reinforced plastics (FRP) section bar buckling-resisting supporting structure
  • Fiberglass-reinforced plastics (FRP) section bar buckling-resisting supporting structure

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example one

[0029] Such as figure 1 , figure 2 The shown anti-buckling support for the FRP profile produced quickly by the present invention includes a flat-shaped steel plate as an inner core 1, a steel plate newly added at the end, an FRP hollow ribbed profile 3 and an FRP cloth 4 as the outer core. The in-line steel plate 1 is welded perpendicularly to the steel plate 2 at both ends to form a cross shape, which is convenient for connection with structural members. Clamp two FRP hollow ribbed profiles 3 on both sides of the in-line steel plate 1, wrap the FRP fabric 4 on the outer ring, and fill the porous foam material between the in-line steel plate 1, FRP hollow ribbed profile 3 and FRP fabric 4 . The end of the straight steel plate 1 and the steel plate 2 can be provided with a connecting structure for connecting with the structure, in this example, a through hole 5.

[0030] Such as image 3 As shown, the central part of the in-line steel plate 1 is provided with...

Example Embodiment

[0033] Example two

[0034] See Figure 8 , The difference from the first embodiment is that two structures 8 of the fundamental invention are arranged in one span. At this time, a pre-embedded plate 11 needs to be arranged in the middle of the frame beam. When necessary, a stiffening rib needs to be added to the embedded plate 11 to ensure the connection strength and rigidity.

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Abstract

The invention belongs to the technical field of civil engineering structural damping, and particularly relates to a fiberglass-reinforced plastic (FRP) section bar buckling-resisting supporting structure of rapid industrialization production. A core energy-consumption element is a line-type steel plate, and sectional faces of two end portions of the core energy-consumption element are expanded in the width direction. A steel plate is perpendicularly welded with the two end portions of the line-type steel plate to form a cross-shaped structure which can be connected with a structural member conveniently. Two FRP hollow ribbed bars are respectively clamped at two sides of the line-type steel plate, FRP cloth materials are wound on the outer rings of the FRP hollow ribbed bars, and multi-hole foam materials are filled between the line-type steel plate, the FRP hollow ribbed bars and the FRP cloth materials. Connecting structures used for being connected with structures are arranged on two ends of the line-type steel plate and the steel plate. The FRP section bar buckling-resisting supporting structure achieves energy consumption by utilizing rolled steel good in plastic deforming capability, especially mild steel, and achieves hysteretic energy consumption by utilizing axial deformation of the rolled steel. The FRP section bar buckling-resisting supporting structure is novel and reasonable in structure, easy to process, convenient and flexible to use, strong in adaptability, capable of effectively improving seismic performance of building structures, and wide in marketing popularization and application prospect.

Description

technical field [0001] The invention belongs to the technical field of shock absorption of civil engineering structures, and in particular relates to an anti-buckling support structure of FRP profiles produced in rapid industrialization. Background technique [0002] Frame structures include reinforced concrete frame structures and steel frame structures, which are the most commonly used structural forms in the world today. They have significant advantages such as strong designability, light weight, and good economy. However, when encountering lateral effects such as earthquakes, It is prone to the phenomenon that the interlayer displacement is too large, which will affect the later use or even be damaged and collapsed due to insufficient strength. In order to make the building structure have a strong ability to resist external damage such as earthquakes, it is often necessary to add energy-dissipating components to the frame structure. [0003] Common energy-dissipating co...

Claims

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Application Information

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IPC IPC(8): E04B1/98
Inventor 潘鹏叶列平陆新征胥晓光陈浩文曹海韵
Owner TSINGHUA UNIV
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