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Three-dimensional frame reinforcing structure in large-size masonry column and construction method

A technology for strengthening structures and masonry columns, which is used in building maintenance, building components, building structures, etc., can solve the problems that the strengthening method cannot meet the requirements, change the structural components, etc., so as to reduce the appearance damage and improve the vertical bearing capacity. , the effect of improving the overall seismic performance

Active Publication Date: 2021-06-04
SOUTHEAST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods have been applied in engineering practice to a certain extent, and have shown their respective advantages, but these methods all have a common disadvantage, that is, changing the appearance of structural components. For cultural relics, the first principle of repair and reinforcement is not to change The original state of cultural relics, at this time, none of the above reinforcement methods can meet the requirements

Method used

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  • Three-dimensional frame reinforcing structure in large-size masonry column and construction method
  • Three-dimensional frame reinforcing structure in large-size masonry column and construction method
  • Three-dimensional frame reinforcing structure in large-size masonry column and construction method

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Experimental program
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Effect test

Embodiment 1

[0035] Embodiment 1: A three-dimensional frame reinforcement structure in a large-volume masonry column, such as figure 1 and figure 2 , including a number of parallel first fixing holes 11 set in the existing masonry member 1, square steel pipes 12 pierced in each first fixing hole 11, filling the outer wall of the square steel pipe 12 and the first fixing hole 11 The filling layer 121 between the walls and a number of bushing grouting anchors 13 that pass through the existing masonry member 1 and are perpendicular to the length direction of the square steel pipe 12. One end of each bushing grouting anchor 13 passes through the same plane. Each square steel pipe 12 in.

[0036] Such as figure 1 and figure 2, each square steel pipe 12 and each bushing grouting anchor 13 form a three-dimensional space frame, and the bushing grouting anchor 13 passes through the square steel pipe 12, and the volume of the bushing grouting anchor 13 expands after grouting, so that the bushin...

Embodiment 2

[0044] Embodiment 2: a kind of construction method based on above-mentioned embodiment 1, as Figure 6 , including the following steps, step 1, according to the vertical force and horizontal force borne by the existing masonry member 1 after reinforcement, determine the cross-sectional area and number of steel pipes required for reinforcement, and the spacing of grouting anchor rods 13 with bushings;

[0045] Step 2, determining the drilling distance and drilling position of the first fixing holes 11 on the top surface of the existing masonry member 1;

[0046] Step 3: Determine the drilling position of the side wall of the steel pipe according to the required spacing of the grouting anchor rods 13 with bushings, and drill the second fixing holes 131 alternately on adjacent surfaces;

[0047] Step 4. After the first fixing hole 11 is drilled, place the square steel pipe 12. The center of the square steel pipe 12 coincides with the drilling center of the first fixing hole 11, s...

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Abstract

The invention discloses a three-dimensional frame reinforcing structure in a large-size masonry column and a construction method, and relates to the technical field of structural engineering in the civil engineering industry. The purposes of improving the vertical bearing capacity and the overall anti-seismic property of an existing masonry component and reducing the appearance damage to the masonry component are achieved. According to the technical scheme, the three-dimensional frame reinforcing structure is characterized by comprising a plurality of parallel first fixing holes formed in the existing masonry component, square steel pipes arranged in the first fixing holes in a penetrating mode, filling layers arranged between the outer walls of the square steel pipes and the hole walls of the first fixing holes in a filling mode and a plurality of grouting anchor rods with linings, wherein the grouting anchor rods are arranged in the existing masonry component in a penetrating mode and are perpendicular to the length direction of the square steel pipes, and one end of each grouting anchor rod with the corresponding lining penetrates through the corresponding square steel pipe located in the same plane.

Description

technical field [0001] The invention relates to the technical field of structural engineering in the civil engineering industry, more specifically, it relates to a three-dimensional frame reinforcement structure inside a large-volume masonry masonry column and a construction method. Background technique [0002] Masonry is one of the traditional building materials in my country. In ancient times, masonry structures were widely used in city walls and pagodas. Since the founding of the People's Republic of China, large-volume masonry columns are still used as the main force-bearing components in industrial buildings and traffic bridges. Large-volume masonry columns generally need to be reinforced due to the following reasons: ①Deterioration of material properties, that is, reduced resistance; ②Increased vertical load, such as changes in use functions; ③Increased seismic fortification category or seismic fortification intensity. [0003] The commonly used reinforcement methods...

Claims

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Application Information

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IPC IPC(8): E04G23/02E04B1/98E04H9/02
CPCE04G23/0218E04B1/98E04H9/02
Inventor 敬登虎程浩然汪方勇吴真
Owner SOUTHEAST UNIV
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