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High-elongation combined brick column and construction method thereof

A construction method and high ductility technology, applied in the direction of columns, pier columns, pillars, etc., can solve the problems of brittleness, poor crack resistance and seismic performance, and the bearing capacity of ordinary brick columns does not meet the requirements, so as to improve the seismic performance and high Durability Damage resistance, the effect of improving integrity

Active Publication Date: 2015-02-18
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

Due to the increase of seismic fortification requirements for brick masonry structures in the current code, changes in building functions, and structural corrosion damage, etc., the bearing capacity of ordinary brick columns may not meet the requirements.
In summary, the existing common brick columns have the disadvantages of brittleness, poor crack resistance and poor seismic performance

Method used

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  • High-elongation combined brick column and construction method thereof
  • High-elongation combined brick column and construction method thereof
  • High-elongation combined brick column and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Follow the technical scheme of the present invention, such as figure 1 with figure 2 As shown, the size of the sintered ordinary brick in this embodiment is 240mm×115mm×53mm; the cross-sectional size of the brick column is 370mm×370mm, and the column height is 3m. Its structure is: several vertical mortar joints are buried in the brick column 1. Short steel bars 2; along the height direction of the brick column 1, the four corners of the brick column 1 are respectively pasted with chamfered angle steel 5; on the outside of the angle steel 5, there are several pieces installed on the brick column 1 along the height direction of the brick column 1. The steel bands 4 are closed along the circumference of the brick column 1; and the outer surface of the brick column 1 is coated with a high ductility fiber concrete surface layer 3. The specific construction process is:

[0037] Step 1: Build brick column 1, and embed short steel bars 2 in the vertical mortar joints on the surf...

Embodiment 2

[0052] Such as image 3 with Figure 4 As shown, in this embodiment, the size of the sintered ordinary brick is 240mm×115mm×53mm; the cross-sectional size of the load-bearing brick column is 620mm×620mm, and the column height is 3m. The structure is different from the brick column structure of the first embodiment: The four corners of the brick column are not pasted with angle steel, and galvanized steel strips with a strength of 270MPa or more are used, and the steel strips are tied to the outside of the high ductility fiber concrete surface layer. The construction method is different from the construction method in Example 1 in:

[0053] Step 1: Build brick columns and bury several short steel bars in the vertical mortar joints of the brick columns;

[0054] Step two, smear the high ductility fiber concrete surface layer on the surface of the brick column;

[0055] Step three, install the steel band hoops.

Embodiment 3

[0057] Such as Figure 5 with Image 6 As shown, in this embodiment, the brick column is a buttress column with a cross-sectional size of 370mm×370mm and a column height of 3m. The difference between this embodiment and the first embodiment is that the size of the angle steel 5 used in this embodiment is The size of angle 7 is The other construction procedures are the same as in Example 1.

[0058] Through the joint action of the prestressed steel band hoop and the high ductility fiber concrete surface layer, the present invention not only produces a larger lateral active restraint force on the brick column, improves the shear strength of the brick column, but also improves the overall brick column It can effectively inhibit the cracking of the brick column, greatly improve the deformability of the brick column itself, thereby significantly improving the integrity and seismic performance of the brick column, and effectively reduce the damage of the masonry structure under the ea...

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Abstract

The invention discloses a high-elongation combined brick column and a construction method thereof so as to solve the problem that the conventional common brick column has fragility, low seismic resistance and low overall performance. The high-elongation combined brick column consists of a brick column, short steel bars, a high-elongation fiber concrete surface layer, angle steel and steel strip hoops; and the construction method comprises the following steps of building a common brick column during construction, and embedding the short steel bars into mortar joints of the brick column; mounting the angle steel along the height direction of the brick column; mounting a plurality of steel strips along the height direction of the brick column, wherein each steel strip is closed to form a steel strip hoop around the circumferential direction of the brick column; and finally, daubing the high-elongation fiber concrete on the surface of the brick column. The compressive capacity, shear resistance and seismic resistance of the brick column are superior to those of the traditional brick column, and brittle failure is difficult to occur; and meanwhile, the brick column is simple in construction and low in engineering construction cost.

Description

Technical field [0001] The invention belongs to the field of building structures in the field of civil engineering, and specifically relates to a high ductility composite brick column and a construction method thereof. Background technique [0002] At present, brick masonry structures are widely used in my country's industrial and civil construction fields. However, due to the brittle nature of brick masonry materials, its tensile, shear and bending strengths are low and its own weight is large, which is extremely unfavorable to the seismic resistance of the structure. . [0003] Brick column is one of the most important load-bearing components in brick masonry structure. It bears the vertical load from the floor and beam, and also bears part or all of the horizontal load. Its seismic performance has a greater impact on the safety of the masonry structure. Due to the current requirements on the seismic fortification of brick masonry structures, changes in building functions and str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04C3/34E04B1/98E04G21/00C04B28/04
Inventor 邓明科梁兴文樊鑫淼
Owner 西安五和新材料科技集团股份有限公司
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