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Building anti-continuous collapse reinforcement system and method combined with hpfl and steel plate

A building and steel plate technology, applied in building construction, construction, building maintenance, etc., can solve problems such as affecting structural clearance, damage to original structure construction, and difficulty in fully utilizing the strength of reinforcement materials.

Inactive Publication Date: 2016-04-06
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this reinforcement technology also has the following disadvantages: this method needs to fix the stress tendons through expansion bolts, shear pins, etc., and provide shear bond strength, the construction is more troublesome and causes some damage to the original structure; the reinforcement layer and the original structure Bonding and peeling failure occurs in the transaction between the two, and the strength of the reinforcement material is not easy to be fully utilized; it is difficult to meet the requirements of high rigidity and ductility of the structure
However, this method requires a large amount of on-site wet work and a long curing time. The thickened part increases the self-weight and dead-load bending moment of the structure. The bearing capacity is limited by the original concrete strength in the compression zone, and affects the structural headroom. The usable space of the original structure has a great influence. At the same time, if the steel bars are to be continuous, the penetration damage to the original structure cannot be avoided, making it unsuitable for continuous collapse resistance reinforcement.

Method used

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  • Building anti-continuous collapse reinforcement system and method combined with hpfl and steel plate
  • Building anti-continuous collapse reinforcement system and method combined with hpfl and steel plate
  • Building anti-continuous collapse reinforcement system and method combined with hpfl and steel plate

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Experimental program
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Effect test

Embodiment 1

[0070] Such as figure 1 with image 3 As shown, the building anti-continuous collapse reinforcement system combining HPFL and steel plates of the present invention includes a plurality of anchoring steel plates that are pasted on the surface of the column to be reinforced by adhesive steel glue 15 to form a ring and HPFL reinforcement that is arranged on the surface of the beam 1 to be reinforced Layer 9, two adjacent anchor steel plates are fixedly connected by connecting bolts 10, and the surface of each anchor steel plate is provided with an anti-rust coating 22, and the HPFL reinforcement layer 9 includes tension and is arranged on the beam to be reinforced. 1, the stressed reinforcement mesh 16 on the surface, the interface agent layer 19 arranged on the surface of the beam 1 to be reinforced and the stressed reinforcement mesh 16, and the high-performance mortar bonding layer 20 arranged on the surface of the interface agent layer 19, the stressed reinforcement mesh 16 ...

Embodiment 2

[0077] Such as figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the column to be reinforced 2 is a side column 2-2, and the number of the anchoring steel plates is four, which are symmetrically arranged on the side column 2-2 without a beam. The third anchoring steel plate 5 and the first anchoring steel plate 3 on the side surface opposite to it, and two second anchoring steel plates 4 symmetrically arranged on the other two sides of the side column 2-2; as Figure 5 with Image 6As shown, the first anchoring steel plate 3 includes a rectangular first bottom plate 3-1 and four first connecting ear plates 3-2 arranged on the sides of the four corners of the first bottom plate 3-1, four first The connecting lugs 3-2 are all arranged parallel to the first bottom plate 3-1, and the four first connecting lugs 3-2 are all provided with first threaded holes 3-5 for connecting bolts 10 to pass through; the first A first thickened region 3-3 is pro...

Embodiment 3

[0079] Such as Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the column to be reinforced 2 is a corner column 2-3, and the number of the anchoring steel plates is four, which are symmetrically arranged on the beamless side of the corner column 2-3 and The third anchoring steel plate 5 and the first anchoring steel plate 3 on the side surface opposite to it, and the fourth anchoring steel plate 6 and the second anchoring steel plate 6 and the second anchoring steel plate symmetrically arranged on the other side of the corner column 2-3 without beams and on the opposite side surface Steel plate 4; as Figure 5 with Image 6 As shown, the first anchoring steel plate 3 includes a rectangular first bottom plate 3-1 and four first connecting ear plates 3-2 arranged on the sides of the four corners of the first bottom plate 3-1, four first The connecting lugs 3-2 are all arranged parallel to the first bottom plate 3-1, and the four first connec...

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Abstract

The invention discloses a building progressive collapse resisting reinforcing system and method with HPFL and steel plates combined. The system comprises the anchoring steel plates bonded on the surface of a column to be reinforced and an HPFL reinforcing layer arranged on the surface of a beam to be reinforced, and the HPFL reinforcing layer comprises a carrying steel net, an adhesion agent layer and a high-performance mortar binding layer. The method comprises the steps that 1, loads are removed, the surface is leveled, and cracks are sealed; 2, the surface is polished, cleaned and dried; 3, the anchoring steel plates and the carrying steel net are prefabricated; 4, the carrying steel net is anchored on the anchoring steel plates, and fixes the anchoring steel plates; 5, the carrying steel net is fixed; 6, watering wetting is carried out; 7, the adhesion agent layer and the high-performance mortar binding layer are sprayed; 8, maintenance is carried out; 9, rust preventing treatment is carried out on the anchoring steel plates. The building progressive collapse resisting reinforcing system and method are convenient to construct, the bearing capacity and ductility of the original beam to be reinforced and the original column to be reinforced are improved, a building to be reinforced is not damaged, the integrality and progressive collapse resisting capacity of the building are improved, and application and popularization are facilitated.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a building anti-continuous collapse reinforcement system and method combining HPFL and steel plates. Background technique [0002] With the improvement of our country's economic level, the reinforcement technology of reinforced concrete buildings has also made great progress. At present, my country's structural reinforcement and transformation industry has become one of the main industries in the field of civil engineering. Buildings are often at risk of progressive collapse due to changes in building use, earthquake damage, impact and blast damage. Currently commonly used reinforcement technologies include: reinforced high-performance mortar reinforcement, bonded steel reinforcement, FRP reinforcement, enlarged cross-section reinforcement, etc., but the reinforcement goals are generally limited to improving the bending and shear bearing capacity of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G23/02
Inventor 黄华刘伯权高佳明吴涛潘亮
Owner CHANGAN UNIV
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