Profile steel-concrete combined L-shaped column with internal FRP ribs

A concrete column and concrete technology, applied in the direction of columns, piers, pillars, etc., can solve the problems of structural durability and structural damage, poor corrosion resistance of steel bars, affecting the normal use of structures, etc., to improve seismic performance, increase bearing capacity and The effect of ductility and superior seismic performance

Pending Publication Date: 2019-08-27
FUZHOU UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

Engineering practice shows that due to the poor corrosion resistance of steel bars, the structural durability problems caused by steel bar corrosion will cause premature damage to the structure, resulting in a large amount of later maintenance costs, affecting the normal use of the structure

Method used

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  • Profile steel-concrete combined L-shaped column with internal FRP ribs

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Embodiment Construction

[0012] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

[0013] Such as figure 1 As shown, a steel-concrete composite L-shaped column with built-in FRP reinforcement is a corner column in a special-shaped column frame structure, including an "L"-shaped concrete column body 4, and the corner of the concrete column body is the core area. Round steel pipes 5 are arranged vertically, and T-shaped section steel 2 is arranged vertically inside the two column limbs of the concrete column body. The outer sides of the flanges of the section steel are equipped with first longitudinally stressed FRP bars 1, and the interior of the concrete column body is equipped with second longitudinally stressed FRP bars 6 at the four outer corners of the round steel pipe. The first longitudinally stressed FRP bars are connected with The se...

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Abstract

The invention relates to a profile steel-concrete combined L-shaped column with internal FRP ribs. The profile steel-concrete combined L-shaped column with the internal FRP ribs comprises an L-shapedconcrete column body, the corner portion of the concrete column body serves as a core area, and a round steel pipe is vertically arranged in the core area; T-shaped profile steel is vertically arranged in two column limbs of the concrete column body separately, and the flanges of the T-shaped profile steel are both located on the outer portions of the column limbs; and first longitudinally-stressed FRP ribs are arranged on the outer sides of the flanges of the T-shaped profile steel in the concrete column body, second longitudinally-stressed FRP ribs are arranged on the four outer side cornersof the round steel pipe in the concrete column body, and the first longitudinally-stressed FRP ribs and the second longitudinally-stressed FRP ribs are bound and connected through stirrups separately. The profile steel-concrete combined L-shaped column with the internal FRP ribs is simple in structure.

Description

technical field [0001] The invention relates to a steel-concrete composite L-shaped column with built-in FRP bars, belonging to the technical field of composite structures. Background technique [0002] Reinforced concrete structures formed with steel bars as reinforcing materials are the most important structural form of modern engineering construction, and are widely used in construction engineering, bridge and traffic engineering, water conservancy and harbor engineering, underground engineering, storage facilities, and nuclear reactors. Reinforcement restrains cracks and cracks in concrete, bears tensile stress and improves the ductility of components. In marine, chemical, deicing salt and other erosive environments, the permeation of harmful media and ions in the environment will corrode steel bars. Previous studies have shown that steel bar corrosion in concrete structures is an electrochemical corrosion in a chloride ion environment, which causes durability problems ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/36
CPCE04C3/36
Inventor 陈誉杨航冯刚
Owner FUZHOU UNIV
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