Steel construction reinforced structure and reinforcing method thereof

A steel structure building and reinforcement structure technology, which is applied in the direction of building structure, construction, building maintenance, etc., can solve the problems of deformation of steel components, difficulty in construction, and difficulty in meeting the design requirements for the anti-slip coefficient, so as to improve the construction period, The simplification and improvement of construction technology and the effect of strong construction operability

Inactive Publication Date: 2010-02-10
天地金草田(北京)科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high temperature during welding construction causes temperature stress on the steel member, resulting in deformation of the steel member. Due to the deformation of the steel member caused by the temperature stress, it is difficult to achieve the anti-slip coefficient between the original steel member anchored by high-strength bolts and the newly added steel member. Design requirements, but there are safety hazards
Reinforcement with high-strength bolts plus steel components requires drilling under the original structural parts. Drilling is difficult and difficult to construct. During drilling, high temperatures will also be generated locally at the drilling site, causing deformation of the steel components and anchoring the high-strength bolts. The anti-slip coefficient between the original steel member and the newly added steel member is difficult to meet the design requirements, and there are potential safety hazards

Method used

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  • Steel construction reinforced structure and reinforcing method thereof
  • Steel construction reinforced structure and reinforcing method thereof
  • Steel construction reinforced structure and reinforcing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] see figure 1 , figure 2 , a reinforced structure of a steel structure building, comprising an original structural steel 1, a reinforced steel 2, and a reinforced bolt 3, the reinforced bolt 3 passes through the through hole 11 on the original structural steel 1 and the through hole 21 on the reinforced steel 2, and the original The structural steel 1 and the reinforced steel 2 are fastened and connected, which is characterized in that a structural adhesive bonding layer 4 is provided between the original structural steel plate 1 and the reinforced steel plate 2 .

[0023] Preferably, the thickness of the structural adhesive bonding layer 4 is 2-5 mm.

[0024] Preferably, the diameters of the through hole 11 on the original structural steel 1 and the through hole 21 on the reinforced steel 2 are both 1-2 mm larger than the nominal diameter of the reinforced bolt 3 .

Embodiment 2

[0026] see figure 1 , figure 2 , image 3 , the construction method of building reinforcement structure is characterized in that comprising the following steps:

[0027] a. Drilling

[0028] First, build the support 7 of the engineering drill 5 under the original structural steel plate 1, place the engineering drill 5 on the support 7, make the drill bit of the engineering drill 5 align with the drilling position under the original structural steel plate 1, start the engineering drill 5, and carry out Reverse drilling, while drilling, use water spray device 6 to spray water to the drill hole, spray water while drilling, so that the water column sprayed by water spray device 6 is directly sprayed on the drill hole until the original structural steel plate is drilled 1. Form the through hole 11; drill all the holes by analogy, and make the position of the through hole 11 on the original structural steel plate 1 correspond to the position of the pre-processed through hole 21 ...

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Abstract

The invention discloses a steel construction reinforced structure, comprising original constructional steel, reinforcing steel and a reinforcing bolt, and a structure gluing connecting layer is arranged between the raw construction steel and the reinforcing steel plate. Construction method of the steel construction reinforced structure includes the following steps: a) a hole is bored; b) structureadhesive is placed and coated between the reinforcing steel plate processed with a through hole and raw steel member, so as to form the structure gluing connecting layer; c) the reinforcing bolt is used for connecting the raw constructional steel and the reinforcing steel tightly and firmly. The invention makes the best of connectivity of high strength bolt and utilizes structural adhesive to improve anti-shearing performance of the steel member, the bonding force of the structural adhesive causes no relative movement to be existed between steel plates, and anti-slippage requirement of designing institute on high strength bolt can be achieved. As the structural adhesive is filled between the steel members, anticorrosion of steel member can be realized, and simplification in construction period and construction technology is effectively improved. Reverse boring construction method is adopted, thus having the characteristics of strong construction operability and fast speed.

Description

technical field [0001] The invention relates to a steel structure building reinforcement structure, in particular to a steel structure building reinforcement structure in which new steel components are added to the outside of the original steel structure during reinforcement and transformation of the steel structure building and a reinforcement method thereof. Background technique [0002] In the reinforcement and transformation of steel structure buildings, welding is often carried out on the outside of the original structural parts or reinforced with high-strength bolts and steel components. The high temperature during welding construction causes temperature stress on the steel member, resulting in deformation of the steel member. Due to the deformation of the steel member caused by the temperature stress, it is difficult to achieve the anti-slip coefficient between the original steel member anchored by high-strength bolts and the newly added steel member. Design requireme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/00
Inventor 夏建中杨增福周强李泽农张宏亮
Owner 天地金草田(北京)科技有限公司
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