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Method for increasing constructional column for brick masonry wall

A technology for constructing columns and body walls, which is applied to building structures, building components, and earthquake resistance. The effect of good performance, reinforcement effect and good bonding performance

Active Publication Date: 2013-01-23
西安五和新材料科技集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The construction techniques and methods of the above method are relatively complicated, and the improvement of the seismic performance after reinforcement is limited, and buttress columns are added outside the original building, which seriously affects the appearance of the original building

Method used

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  • Method for increasing constructional column for brick masonry wall
  • Method for increasing constructional column for brick masonry wall
  • Method for increasing constructional column for brick masonry wall

Examples

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Embodiment 1

[0030] Follow the technical scheme of the present invention, such as figure 1 and figure 2 As shown, the building to be reinforced in this embodiment is a four-story brick-concrete structure office building, the brick masonry wall thickness is 240 mm, and the seismic fortification intensity is 7 degrees. Add a structural column at the junction of the vertical and horizontal walls in the middle of the house. The size of the structural column is to extend one brick length vertically and horizontally at the junction of the vertical and horizontal walls (1, 2), which is 240mm, which is determined as the size range of the pre-added structural column. , first pre-treat the surface of the brick masonry wall, remove the original mortar surface layer 3 and perform surface cleaning; then arrange longitudinal steel bars with a diameter of 12mm at the corners of the wall at the intersection of vertical and horizontal walls and at the corners of pre-added structural columns 4. A total of...

Embodiment 2

[0041] This embodiment is a six-storey brick-concrete structure office building, the brick masonry wall thickness is 240mm, the seismic fortification intensity is 8 degrees, and structural columns are added at the intersection of vertical and horizontal walls at the corners of the building. The size of the structural column is still 240mm long extending one brick vertically and horizontally at the junction of the vertical and horizontal walls. This example differs from Embodiment 1 in that the additional structural column is a corner column, and the additional structural column has a different shape, and the arranged longitudinal reinforcement 4 is eight steel bars with a diameter of 14mm. The structural form of the rectangular closed stirrup 5 is as follows Figure 4 As shown, the stirrup 5 spacing is 200mm. Other construction procedures are all the same as in Example 1.

[0042] The invention not only improves the shear strength and anti-seismic ability of the brick masonry...

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Abstract

The invention discloses a method for increasing a constructional column for a brick masonry wall for solving the problems that the construction process is complex and the appearance of a building is influenced by the increased constructional column in the conventional method for increasing the constructional column. The method comprises the following steps of: arranging longitudinal reinforcements at the periphery of the brick masonry wall on which the constructional column is required to be increased; holing along vertical mortar joints every 150 to 300mm at intervals along with the height of the constructional column, and allowing a stirrup to penetrate through the hole; and finally, daubing high-elongation fiber concrete on the surface of the wall. The constructional column is increased by utilizing the mechanical property advantages of the high-elongation fiber concrete and high adhesion performance between the high-elongation fiber concrete and the brick masonry, so that the shear capacity of the wall can be greatly improved, brittle failure is avoided, and the seismic resistance of the brick masonry wall is obviously improved. The method has the characteristics of good reinforcement effect, simple construction process and low influence on the appearance of the original building.

Description

technical field [0001] The invention belongs to the technical field of anti-seismic reinforcement of building structures, and in particular relates to a method for adding structural columns to brick masonry walls. Background technique [0002] Adding structural columns to brick masonry walls is an effective seismic strengthening method for brick masonry structures. Adding structural columns to brick masonry walls is to add structural columns at the intersection of longitudinal and horizontal walls. The existing method of adding structural columns is to add concrete buttresses The concrete construction steps of this method are as follows: [0003] Step 1, according to the provisions of GB50011 of "Code for Seismic Design of Buildings", the size and position of the pre-installed structural columns are determined according to the number of layers of the brick masonry structure to be reinforced, the seismic fortification classification and the intensity; [0004] Step 2: Bind s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02E04G23/04E04B1/98C04B28/04
Inventor 邓明科梁兴文秦萌
Owner 西安五和新材料科技集团股份有限公司
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