Seam filling method for reserved seam between top of infilled wall and bottom of main body structure

Abstract

The invention provides a method for filling a reserved seam between the top of an infilled wall and the bottom of a main structure, which comprises the following steps of: (a) building the infilled wall on an indoor ground, and controlling the gap distance between the top surface of the infilled wall and the bottom surface of a structural beam to be a; (b) remaining for 14 days according to the national standard, so that the infilled wall is fully settled; (c) stuffing a plurality of wooden wedge groups into the gap, so that the plurality of wooden wedge groups are arranged at intervals; and (d) filling the gap with dry and hard micro-expansive cement mortar, and smearing the cement mortar until the cement mortar is flush with the wall surface, and ensuring the filling compactness. The multiple wooden wedge sets are stuffed into the gap, and the dry and hard micro-expansive cement mortar is filled in a matched mode, so that the construction difficulty is reduced, the construction efficiency is improved, more importantly, the common cracking problem between the masonry wall body and the main body structure can be reduced, the comprehensive cost is reduced, and the quality level is improved.

Description

Technical Field

[0001] This invention belongs to the field of interior decoration technology and relates to a method for sealing gaps, specifically a method for sealing gaps reserved between the top of a wall and the bottom of the main structure. Background Technology

[0002] According to the national standard "Code for Acceptance of Construction Quality of Masonry Structures" GB50203, the construction of the gaps between the infill wall and the load-bearing main structure should be carried out 14 days after the infill wall is built, but no specific requirements are made for the top construction. Currently, there are two construction techniques: sloping bricklaying and caulking. The traditional technique is to lay the top bricks slopingly, but this cannot effectively achieve a tight bond between the masonry and the main structure, and the cracking problem at the joint is relatively serious. The alternative technique is to caulking the top, filling the gaps with expansive concrete or mortar.

[0003] Chinese utility model patent application number 202121424668.0 discloses a top-fixing structure for an infill wall, comprising a connecting device. The connecting device includes a first fixing pipe, a second fixing pipe, and a screw. One end of the screw is perpendicularly fixed to the body of the first fixing pipe. The first and second fixing pipes are located on opposite sides of the gap between the infill wall and the upper load-bearing structure, respectively, and both overlap with the infill wall and the upper load-bearing structure. The screw extends through the gap and is fitted with a nut. The first and second fixing pipes are fixed to the infill wall and the load-bearing structure through the screw and nut. This utility model effectively fixes the infill wall before grouting, allowing for earlier construction of pipe trenches and openings. However, the addition of the connecting device hinders the construction of the pre-reserved gap, affecting the efficiency of the grouting process. Summary of the Invention

[0004] To address the aforementioned shortcomings, this invention provides a method for sealing the gap between the top of the infill wall and the bottom of the main structure, which can reduce construction difficulty, improve construction efficiency, and reduce the common problem of cracking between the masonry wall and the main structure.

[0005] To achieve the above technical objectives, the present invention provides a method for sealing the gap between the top of the infill wall and the bottom of the main structure, comprising the following steps: (a) Construct an infill wall on the indoor floor, and control the gap between the top surface of the infill wall and the bottom surface of the structural beam to be a; (b) Leave it for 14 days in accordance with national standards to allow the infill wall to settle fully; (c) Insert multiple sets of wooden wedges into the gap, such that the multiple sets of wooden wedges are spaced apart; (d) Use dry-hard micro-expansion cement mortar to fill the gaps, smooth it to be flush with the wall surface and ensure that the filling is dense.

[0006] Ideally, in step (a), the gap a between the top surface of the infill wall and the bottom surface of the structural beam is 30~50mm.

[0007] Ideally, in step (c), each set of wooden wedges includes a first wooden wedge and a second wooden wedge that cooperate with each other, with the first wooden wedge and the second wooden wedge being inserted alternately from both sides of the gap.

[0008] Furthermore, the spacing between two adjacent sets of wooden wedges is ≤600 mm.

[0009] Furthermore, the first and second wooden wedges are independently made of anti-corrosion wood, which is obtained by soaking in anti-corrosion asphalt and then drying.

[0010] Furthermore, when part of the structure of the first wooden wedge and / or the second wooden wedge is exposed on the surface of the infill wall, it is cut off with a hacksaw.

[0011] Ideally, in step (d), when filling the gap with dry-hard micro-expansion cement mortar, the process is carried out on both sides, so that the filling on one side is completed and fully solidified before the construction on the other side is carried out.

[0012] Further, in step (d), the proportion of cement:sand:gravel:water:gypsum powder in the dry-hard micro-expansion cement mortar is 1:2.5:2:0.3:0.15.

[0013] The present invention provides a method for sealing the gap between the top of the infill wall and the bottom of the main structure. By inserting multiple sets of wooden wedges into the gap and filling it with dry-hard micro-expansion cement mortar, the construction difficulty is reduced and the construction efficiency is improved. More importantly, it helps to reduce the common problem of cracking between the masonry wall and the main structure, reduce the overall cost, and improve the quality level. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the infill wall and the main structure of the present invention; Figure 2 for Figure 1 BB section view; Figure 3 for Figure 2 A magnified view of part A. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to specific embodiments, but the present invention is not limited to the following embodiments. The implementation conditions used in the embodiments can be further adjusted according to different requirements of specific use, and the implementation conditions not specified are conventional conditions in this industry.

[0016] The method for sealing the gap between the top of the infill wall and the bottom of the main structure in this invention is applied between the infill wall 1 and the structural beam 2, such as... Figures 1 to 3 As shown, it includes the following steps: (a) Construct infill wall 1 on the indoor floor, so that infill wall 1 is located below structural beam 2; control the gap between the top surface of infill wall 1 and the bottom surface of structural beam 2 as a; specifically, the gap between the top surface of infill wall 1 and the bottom surface of structural beam 2 is 30~50mm. (b) Leave it for 14 days in accordance with the national standard (National Standard "Code for Acceptance of Construction Quality of Masonry Structures" GB50203) to allow the infill wall 1 to reach its strength and settle sufficiently; (c) Insert multiple sets of wooden wedges 3 into the gap, so that the multiple sets of wooden wedges 3 are spaced apart; Specifically, each set of wooden wedges 3 includes a first wooden wedge 31 and a second wooden wedge 32 that fit together. The first wooden wedge 31 and the second wooden wedge 32 are inserted alternately from both sides of the gap (it is advisable to tighten them). Figure 3 As shown. The first wooden wedge 31 and the second wooden wedge 32 are independently made of anti-corrosion wood, which is obtained by soaking in anti-corrosion asphalt and then drying. When part of the structure of the first wooden wedge 31 and / or the second wooden wedge 32 is exposed on the wall surface of the infill wall 1, it is cut off with a hacksaw. The spacing between two adjacent sets of wooden wedges 3 is ≤600 mm, preferably 200~500 mm.

[0017] (d) Use dry-hard micro-expansion cement mortar to fill the gaps, smooth it to be flush with the wall surface and ensure that the filling is dense.

[0018] Specifically, when filling the gaps with dry-hardened micro-expansion cement mortar, the process is carried out on both sides, ensuring that one side is completely filled and fully solidified before proceeding to the other side. The mix ratio of this dry-hardened micro-expansion cement mortar—cement:sand:gravel:water:gypsum powder—is 1:2.5:2:0.3:0.15, which helps reduce cracking between the masonry wall and the main structure.

[0019] The above-mentioned method for sealing the gap between the top of the infill wall and the bottom of the main structure reduces construction difficulty, improves construction efficiency, reduces overall cost, and enhances quality by inserting multiple sets of wooden wedges 3 into the gap and filling it with dry-hard micro-expansion cement mortar.

[0020] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A method for sealing the gap between the top of an infill wall and the bottom of the main structure, characterized in that, Includes the following steps: (a) Construct an infill wall (1) on the indoor floor, and control the gap between the top surface of the infill wall (1) and the bottom surface of the structural beam (2) to be a; (b) Leave it for 14 days in accordance with national standards to allow the infill wall (1) to settle fully; (c) Insert multiple sets of wooden wedges (3) into the gap, so that the multiple sets of wooden wedges (3) are spaced apart; (d) Use dry-hard micro-expansion cement mortar to fill the gaps, smooth it to be flush with the wall surface and ensure that the filling is dense.

2. The method for sealing the gap between the top of the infill wall and the bottom of the main structure according to claim 1, characterized in that: In step (a), the gap a between the top surface of the infill wall (1) and the bottom surface of the structural beam (2) is 30~50mm.

3. The method for sealing the gap between the top of the infill wall and the bottom of the main structure according to claim 1, characterized in that: In step (c), each set of wooden wedges (3) includes a first wooden wedge (31) and a second wooden wedge (32) that cooperate with each other, and the first wooden wedge (31) and the second wooden wedge (32) are inserted alternately from both sides of the gap.

4. The method for sealing the gap between the top of the infill wall and the bottom of the main structure according to claim 1 or 3, characterized in that: The distance between two adjacent sets of wooden wedges (3) is ≤600 mm.

5. The method for sealing the gap between the top of the infill wall and the bottom of the main structure according to claim 3, characterized in that: The first wooden wedge (31) and the second wooden wedge (32) are made of anti-corrosion wood independently of each other. They are obtained by soaking in anti-corrosion asphalt and then drying.

6. The method for sealing the gap between the top of the infill wall and the bottom of the main structure according to claim 3, characterized in that: When part of the structure of the first wooden wedge (31) or / and the second wooden wedge (32) is exposed on the wall surface of the infill wall (1), it is cut off with a hacksaw.

7. The method for sealing the gap between the top of the infill wall and the bottom of the main structure according to claim 1, characterized in that: In step (d), when filling the gap with dry-hard micro-expansion cement mortar, it is done on both sides, so that the filling on one side is completed and fully solidified before the construction on the other side is carried out.

8. The method for sealing the gap between the top of the infill wall and the bottom of the main structure according to claim 7, characterized in that: In step (d), the proportion of cement:sand:gravel:water:gypsum powder in the dry-hard micro-expansion cement mortar is 1:2.5:2:0.3:0.15.

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