CN213806004U

CN213806004U - Rear plug opening mounting structure of autoclaved aerated concrete block wall

Info

Publication number: CN213806004U
Application number: CN202022834505.1U
Authority: CN
Inventors: 齐露; 张安念; 许景程; 徐建
Original assignee: China Metallurgical Construction Engineering Group Co Ltd
Current assignee: China Metallurgical Construction Engineering Group Co Ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-07-27
Anticipated expiration: 2030-12-01

Abstract

The utility model discloses a back bung hole mounting structure of autoclaved aerated concrete block wall, including the back bung hole that sets up between masonry wall and concrete beam or floor, its characterized in that, is equipped with a plurality of stereoplasm top firmware at masonry wall top surface, back bung hole length direction interval, the upper and lower both ends of stereoplasm top firmware respectively with concrete beam or floor and masonry wall counterbalance, and divide into the multistage space with the back bung hole, all pack in each section space and build the mortar; gaps are formed between the two sides of each hard top fixing piece and masonry mortar and the corresponding outer sides of the masonry walls, and foaming agents are filled in the gaps.

Description

Rear plug opening mounting structure of autoclaved aerated concrete block wall

Technical Field

The utility model relates to a wall body construction field, concretely relates to evaporate back stopper mouth mounting structure who presses aerated concrete block wall body.

Background

The rear plugging opening is a space between a masonry wall and a concrete beam or a floor slab, and at present, two conventional plugging methods for the rear plugging opening of the autoclaved aerated concrete wall are adopted: firstly, the step is to one side built, reserves about 250 mm's clearance at brickwork wall top surface promptly, adopts special oblique shape sand aerated block slope to build, and it is closely knit to fill with special mortar of building by laying bricks or stones. The other method is to reserve a clearance of about 15mm on the top surface of the wall body and then use special masonry mortar or concrete for filling and compacting.

In the two plugging methods, the first plugging method has high strength, but has low efficiency when the masonry is obliquely built, small construction space and larger construction difficulty; the second method has relatively less workload but is a rigid structure, mortar or concrete is easy to slump and shrink in the process of setting and hardening, so that the compactness of a rear plug is poor, the settlement is easily caused under the double extrusion of the self weight of the upper part and the lower part of a wall body, and the settlement crack is also easily generated at a construction joint.

Based on the above, the applicant considers that the construction process of the existing rear plugging port is improved, a rigid-flexible combination structure is adopted to increase the bearing of the wall body, and the rear plugging port is prevented from cracking.

Disclosure of Invention

To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide a bearing capacity is strong, and can avoid the back gag mounting structure who evaporates pressure aerated concrete block wall body of back gag fracture.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a rear plugging port installation structure of an autoclaved aerated concrete block wall body comprises a rear plugging port arranged between a masonry wall and a concrete beam or a floor slab, and is characterized in that a plurality of hard top fixing pieces are arranged on the top surface of the masonry wall and in the length direction of the rear plugging port at intervals, the upper end and the lower end of each hard top fixing piece are respectively abutted against the concrete beam and the masonry wall or the floor slab and the masonry wall, the rear plugging port is divided into a plurality of sections of gaps, and masonry mortar is filled in each section of gap; gaps are formed between the two sides of each hard top fixing piece and masonry mortar and the corresponding outer sides of the masonry walls, and foaming agents are filled in the gaps. Therefore, the hard top fixing piece can be opened and closed, and forms a hard support together with the masonry wall and the concrete beam or the floor slab, the hard top fixing piece and the masonry mortar form an effective support for the rear plug opening, the connection between the hard top fixing piece and the masonry wall top surface and the concrete beam is good, and the support strength of the rear plug opening is effectively increased. The foaming agent outside stereoplasm top firmware and masonry mortar is flexible material, can fill back gag both sides clearance, simultaneously, has certain waterproof effect, can effectively increase the waterproof performance of back gag department. In addition, after the foaming agent is filled outside, the foaming agent has good connectivity with mortar and hard top fixing pieces, has good durability, and can effectively avoid cracking at a rear plug.

Furthermore, each hard top fixing piece comprises two wedge blocks, the outer sides of the two wedge blocks are higher than the inner sides of the two wedge blocks, and a triangular gap is formed between the two wedge blocks and the concrete beam or the floor slab; the gap is filled with connecting mortar. Like this, the voussoir is in the rigid contact and fixed back, and the connection mortar in middle part can play certain buffering effect, simultaneously, can form a comparatively firm connection with the masonry mortar of its both sides together for stereoplasm top firmware forms a whole with masonry mortar.

Furthermore, the two wedges are symmetrically arranged by taking the central line of the rear plug opening in the length direction as an axis and are processed by wood. Therefore, the wedge block is convenient to process and low in cost, and a certain gap can be ensured between the outer side of the wedge block and the outer side of a masonry wall after installation, so that a foaming agent is filled.

Further, a steel wire net is hung on the front side and the rear side of the rear plug opening, the upper edge of the steel wire net is fixed to the lower end of the concrete beam or the floor slab through mortar, and the lower edge of the steel wire net is fixed to the upper end of the masonry wall through mortar. Like this, set up the wire net after, can further promote the wholeness of back gag department, simultaneously, further avoid building by laying bricks or stones back gag department mortar and drop, the fracture.

Furthermore, at least one layer of fire retardant is arranged on the outer surface of each wedge block. Therefore, the wedge block has fireproof performance and meets the requirements of building materials.

Further, the distance between two adjacent hard top fixing pieces is 200-600 mm. Therefore, the hard top fixing pieces are arranged at reasonable intervals, and sufficient strength can be provided for the rear plug opening.

Drawings

FIG. 1 is a schematic plan view of a concrete beam and a masonry wall according to an embodiment;

FIG. 2 is a side view of the rear plug mounting structure;

fig. 3 is a schematic cross-sectional view of fig. 2, which is shown at 1-1.

In the figure: the concrete beam comprises a concrete beam 1, a masonry wall 2, a rear plugging opening 3, a hard top fixing piece 4, a wedge block 41, connecting mortar 42, masonry mortar 5 and a foaming agent 6.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example (b):

as shown in fig. 1 to 3, the rear spigot installation structure of the autoclaved aerated concrete block wall provided in this embodiment includes a rear spigot 3 disposed between a masonry wall 2 and a concrete beam 1, a plurality of hard top fasteners 4 are disposed on the top surface of the masonry wall 2 and in the length direction of the rear spigot 3 at intervals, the upper and lower ends of the hard top fasteners 4 respectively abut against the concrete beam 1 and the masonry wall 2 (or a floor abuts against the masonry wall 2), the rear spigot 3 is divided into a plurality of sections of gaps, and masonry mortar 5 is filled in each section of gap; gaps are formed between the two sides of each hard top fixing piece 4 and each masonry mortar 5 and the corresponding outer side of the masonry wall, and foaming agents 6 are filled in the gaps. Each hard top fixing piece 4 comprises two wedge blocks 41, the outer sides of the two wedge blocks 41 are higher than the inner sides of the two wedge blocks, and a triangular gap is formed by the two wedge blocks 41 and the concrete beam 1 or the floor slab; the gap is filled with a connection mortar 42.

As shown in fig. 3, the two wedges 41 are symmetrically disposed with the center line of the rear plug 3 in the longitudinal direction as an axis, and are formed by wood processing. At least one layer of fire retardant is provided on the outer surface of each wedge 41.

And a steel wire mesh (not shown in the figure) is hung on the front side and the rear side of the rear plug opening 3, the upper edge of the steel wire mesh is fixed at the lower end of the concrete beam or the floor slab through mortar, and the lower edge of the steel wire mesh is fixed at the upper end of the masonry wall through mortar.

The distance between two adjacent hard top fixing pieces 4 is more than or equal to 200mm and less than or equal to 600 mm.

The rear plug in the embodiment is plugged by adopting the following method:

and S1, building the autoclaved sand aerated concrete blocks to the position 15mm below the lower opening of the reinforced concrete beam.

S2, manufacturing wedge 4: the length is 80mm, the front face is square and the width is 20mm, and the back face is rectangular, the length is 20mm and the width is 10 mm. And after the manufacturing is finished, the wedge block 4 is soaked in the preservative, taken out after the manufacturing is finished, sprayed with the fireproof agent for 3-4 times and then placed at a specified position for later use.

And S3, after the infilled wall is built to the lower opening of the reinforced concrete beam or slab, waiting for at least 14 days, and wedging the wedge blocks 4 into the rear plugging openings. The stuffing step is as follows: positioning: the wedging position of the wedge 4 is determined and is positioned in the middle of the building block. Secondly, the wedge blocks 4 are symmetrically wedged, and the back surfaces of the wedge blocks 4 are mutually tightly propped. Can adopt the rubber hammer to assist when wedging into the difficulty and wedge into and accomplish the standard and be: voussoir 4 is accurate at the building block intermediate position, and 4 backs of voussoir push up each other tightly, and 4 upper portions of voussoir push up tightly with the reinforced concrete roof beam, and the lower part pushes up tightly with the top surface of brickwork wall 2, and voussoir 4 does not warp, does not crooked.

And S4, sequentially plugging the connecting mortar 42 and the masonry mortar 5. The mortar can be made into a sticky shape and is plugged into the rear plug 3, and a margin of about 10mm is left between the mortar and the edge of the rear plug 3 (as shown in figure 1).

And S5, finishing the exposed surface of the masonry mortar 5 in the caulked hole. Before the masonry mortar 5 is finally set, the exposed surface of the masonry mortar 5 in the back plugging port is leveled by a back plugging port mortar scraper. The depth of the finishing from the outside of the rear plug port to the mortar surface is about 20 mm.

And S6, blowing a foaming agent 6 (the foaming agent is a PU foaming agent) at the gap between the outer side of the building block 4 and the outer side of the masonry mortar 5, and pressing the exposed foaming agent into the rear plug and leveling the foaming agent before the foaming agent 6 is cured.

And S7, hanging the steel wire mesh and entering the next procedure for construction.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and although the applicant has described the present invention in detail with reference to the preferred embodiments, those skilled in the art should understand that those modifications or equivalent substitutions to the technical solutions of the present invention can be made without departing from the spirit and scope of the technical solutions, and all the modifications and equivalent substitutions should be covered by the claims of the present invention.

Claims

1. A rear plugging opening installation structure of an autoclaved aerated concrete block wall body comprises a rear plugging opening (3) arranged between a masonry wall (2) and a concrete beam or a floor slab, and is characterized in that a plurality of hard jacking members (4) are arranged on the top surface of the masonry wall (2) and in the length direction of the rear plugging opening (3) at intervals, the upper end and the lower end of each hard jacking member (4) respectively abut against the concrete beam or the floor slab and the masonry wall (2), the rear plugging opening (3) is divided into a plurality of sections of gaps, and masonry mortar (5) is filled in each section of gap; gaps are formed between the two sides of each hard top fixing piece (4) and the masonry mortar (5) and the corresponding outer side of the masonry wall, and foaming agents (6) are filled in the gaps.

2. The rear plug opening mounting structure of the autoclaved aerated concrete block wall body according to claim 1, wherein each hard top fixing piece (4) comprises two wedge blocks (41), the outer sides of the two wedge blocks (41) are higher than the inner sides of the two wedge blocks, and a triangular gap is formed by the two wedge blocks and a concrete beam or a floor slab; the gap is filled with a connecting mortar (42).

3. The rear plug mounting structure of the autoclaved aerated concrete block wall body according to claim 2, wherein the two wedges (41) are symmetrically arranged with the center line of the rear plug (3) in the length direction as an axis and are processed by wood.

4. The rear plugging hole installation structure of the autoclaved aerated concrete block wall body as claimed in claim 1, 2 or 3, wherein a steel wire net is hung on both the front side and the rear side of the rear plugging hole (3), the upper edge of the steel wire net is fixed on the lower end of the concrete beam or the floor slab through mortar, and the lower edge of the steel wire net is fixed on the upper end of the masonry wall through mortar.

5. The rear plug mounting structure of an autoclaved aerated concrete block wall according to claim 2 or 3, wherein at least one layer of fire retardant is provided on the outer surface of each wedge block (41).

6. The rear plug opening installation structure of the autoclaved aerated concrete block wall body as claimed in claim 4, wherein the distance between two adjacent hard top fixing members (4) is 200-600 mm.