Construction joint chiseling-free structure

Abstract

The utility model discloses a chiseling-free structure for a construction joint, which relates to the field of construction joint construction of a bottom plate of a house building project and comprises a template frame main keel, and a rubber grout stop belt is arranged on one side of the template frame main keel; the fixing steel bars are driven into the construction joint cushion layer; one end of the supporting frame is fixed to the formwork frame main keel, the other end of the supporting frame is fixed to the fixing steel bar, and the supporting frame is used for supporting the formwork frame main keel. According to the utility model, the main keel of the template frame is arranged to support the rubber grout stop belt, and the main keel of the template frame is fixed by adopting the support frame and the fixing steel bars, so that the rubber grout stop belt can be conveniently and quickly fixed in the construction joint. Due to the fact that the scabbling-free rubber grout stop belt is not strong in bonding with the concrete, the formwork is easy to dismantle, meanwhile, the face, making contact with the concrete, of the scabbling-free rubber grout stop belt is provided with concave-convex parts, the concrete face is also provided with concave-convex parts after dismantling, scabbling is not needed, and the labor cost is saved. The chiseling-free rubber grout stop and the template frame unit made of the profile steel can be recycled, so that the material cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of construction joint construction of the floor slab of building construction projects, and particularly relates to a structure for avoiding chiseling and roughening of construction joints. Background Technique

[0002] The traditional construction method for the floor slab construction joint is to use steel bars to make a skeleton, wind a dense wire mesh around the skeleton to form an interception net, weld it respectively above and below the waterstop steel plate, and intercept the floor slab concrete. After the concrete pouring is completed, this construction method requires chiseling the interception net, removing all the wire meshes, and chiseling and roughening the joint part of the new and old concrete of the construction joint to enhance the bonding effect and reduce the potential leakage hazard. However, this method consumes a lot of labor, and it is extremely difficult to clean the wire mesh completely, resulting in quality hazards.

[0003] With the progress of construction technology, a layer of rubber grout stop belt is set at the construction joint to seal the construction joint. The surface of the rubber grout stop belt in contact with the concrete is provided with uneven teeth. After contacting the concrete, an uneven plane will be formed after the concrete initial setting. However, since the rubber grout stop belt is a flexible material, how to better install the rubber grout stop belt at the construction joint to ensure that the rubber grout stop belt is installed firmly is a problem to be solved. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a structure for avoiding chiseling and roughening of construction joints, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A structure for avoiding chiseling and roughening of construction joints, comprising:

[0007] The main keel of the formwork support, with a rubber grout stop belt arranged on one side;

[0008] Fixed steel bars, driven into the construction joint cushion layer;

[0009] A support frame, with one end fixed on the main keel of the formwork support and the other end fixed on the fixed steel bars, for supporting the main keel of the formwork support.

[0010] Preferably, a secondary keel is fixedly installed at the middle of the main keel of the formwork support.

[0011] Preferably, the rubber grout stop belt is tied to the main keel of the formwork support.

[0012] Preferably, detachable pressing plates are arranged at the upper and lower edges of the main keel of the formwork support.

[0013] Preferably, bearing plates are fixedly installed on the upper and lower edges of one side of the main keel of the formwork support away from the rubber slurry stop belt, and a detachable pressing plate is detachably installed on the bearing plate through bolts.

[0014] Preferably, the pressing plate is located on the side of the main keel of the formwork support away from the rubber slurry stop belt. After the rubber slurry stop belt winds around the upper and lower edges of the main keel of the formwork support, it is pressed between the pressing plate and the bearing plate.

[0015] Preferably, the pressing plate is located at the upper and lower edges of the main keel of the formwork support, and the upper and lower edges of the rubber slurry stop belt are pressed between the pressing plate and the bearing plate.

[0016] Preferably, edge trimming wooden squares and mortar plugging belts are respectively arranged at the upper edge and the lower edge of the main keel of the formwork support.

[0017] Preferably, there are two main keels of the formwork support, and a water stop steel plate is installed between the two main keels of the formwork support.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model supports the rubber slurry stop belt by arranging the main keel of the formwork support, and at the same time, the support frame and the fixing steel bars are used to fix the main keel of the formwork support, so that the rubber slurry stop belt can be conveniently and quickly fixed in the construction joint. Since the non-chiseled rubber slurry stop belt has a weak adhesion to the concrete, the form removal is relatively simple. At the same time, the non-chiseled rubber slurry stop belt has unevenness on the surface in contact with the concrete, and the concrete surface also has unevenness after removal, so there is no need to chisel again, saving labor costs. At the same time, both the non-chiseled rubber slurry stop and the formwork support unit made of profiled steel can be recycled, saving material costs. Description of the Drawings

[0020] Figure 1 It is the overall structure diagram of Embodiment 1 of the utility model;

[0021] Figure 2 It is the structure diagram of the formwork support unit of Embodiment 1 of the utility model;

[0022] Figure 3 It is the overall structure diagram of Embodiment 2 of the utility model;

[0023] Figure 4 It is the first structure diagram of the formwork support unit of Embodiment 2 of the utility model;

[0024] Figure 5 It is the use state diagram of the first structure of the formwork support unit of Embodiment 2 of the utility model;

[0025] Figure 6 It is the second structure diagram of the formwork support unit of Embodiment 2 of the present utility model;

[0026] Figure 7 This is the second structural usage state diagram of the formwork support unit in Embodiment 2 of the present utility model.

[0027] In the figure: 1, main keel of the formwork support; 2, waterstop steel plate; 3, support frame; 4, mortar plugging strip; 5, edge trimming wooden square; 6, rubber slurry stopping strip; 7, secondary keel; 8, bottom plate surface reinforcement; 9, bottom plate bottom reinforcement; 10, fixed reinforcement; 11, pressing plate; 12, bearing plate. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment 1

[0030] Please refer to Figure 1 and Figure 2 As shown, this embodiment provides a construction joint non-chiseling structure, which includes: a plurality of formwork support units, a waterstop steel plate, a mortar plugging strip 4, and an edge trimming wooden square 5.

[0031] The formwork support unit is welded with galvanized square steel of a suitable specification (the specification is specifically designed according to the thickness of the poured concrete) into the main keel 1 of the formwork support. The whole is rectangular, and the length and width are adjusted according to the thickness of the bottom plate, and are adapted to the height of the poured concrete. And in the middle gap of the main keel 1 of the formwork support, the secondary keel 7 of the formwork support is made of the surplus material of the steel bar. The secondary keel 7 is welded to the main keel 1 of the formwork support. Then, the finished non-chiseling rubber slurry stopping strip 6 is penetrated by wire ties and tied to the main keel 1 of the formwork support and the secondary keel 7 of the formwork support to form the main body of the formwork support unit.

[0032] One side of the non-chiseling rubber slurry stopping strip 6 in contact with the concrete is provided with uneven teeth. After contacting the concrete, the concrete will form an uneven plane after solidification.

[0033] During construction, it is necessary to lay the bottom reinforcement 9 of the main structure before laying the construction joint. Specifically: first, lay the bottom reinforcement 9 of the floor slab. After completion, stand the main keel 1 of the formwork support unit on the bottom reinforcement 9 of the floor slab. Drive the fixed reinforcement 10 into the cushion layer, and use the support frame 3 to weld to the formwork support unit 1 and the fixed reinforcement 10 respectively to form an integral body. Then, place the waterstop steel plate 2 at the upper opening of the formwork support unit (main keel 1 of the formwork support). Place the formwork support unit (main keel 1 of the formwork support) on the waterstop steel plate 2. That is to say, the waterstop steel plate 2 is located between two main keels 1 of the formwork support, and the same method is used for diagonal bracing and fixing. Set multiple formwork support units along the direction of the construction joint to finally form an integral construction joint template without chiseling, and then tie the top reinforcement 8 of the floor slab. After tying, set the edge closing wooden square 5 on the top reinforcement 8 of the floor slab, and tie and fix it to the top reinforcement 8 of the floor slab with binding wire to prevent the upper concrete from overflowing. And use mortar to construct the mortar plugging belt 4 under the bottom reinforcement 9 of the floor slab to prevent the concrete from overflowing from the lower part of the reinforcement.

[0034] After the concrete is poured and completed, manually cut the fixing binding wire between the edge closing wooden square 5 and the top reinforcement 8 of the floor slab and the fixing binding wire between the rubber slurry stop belt 6 without chiseling and the main keel 1 and the secondary keel 7 of the formwork support, and cut the fixed reinforcement 10, then remove the edge closing wooden square 5 and the formwork support unit, and finally tear off the rubber slurry stop belt 6 without chiseling.

[0035] It should be noted that: after the concrete begins to set, the rubber slurry stop belt should be removed in time to avoid the situation that the rubber slurry stop belt is difficult to remove due to excessive concrete setting.

[0036] For the construction joint of the floor slab constructed by the present utility model, since the adhesion between the rubber slurry stop belt without chiseling and the concrete is not strong, the form removal is relatively simple. At the same time, the surface of the rubber slurry stop belt without chiseling in contact with the concrete has its own concavities and convexities, and the concrete surface also has concavities and convexities after removal, so there is no need to chisel again, saving labor costs. At the same time, the rubber slurry stop belt 6 without chiseling and the formwork support unit made of profiled steel can be recycled, saving material costs.

[0037] Embodiment 2

[0038] The difference from Embodiment 1 is that:

[0039] In Embodiment 1, the rubber slurry stop belt 6 is tied to the main keel 1 and the secondary keel 7 of the formwork support with binding wire. When tying, it is necessary to pierce the rubber slurry stop belt 6, which will cause damage to the rubber slurry stop belt 6. As the number of cycles increases, the service life of the rubber slurry stop belt 6 will be reduced. At the same time, when using binding wire, multiple tying points need to be set, which is time-consuming.

[0040] In this embodiment, a further improved design is made for the fixation of the rubber slurry stop belt 6. The specific scheme is as follows: As Figure 3 and Figure 4As shown in the figure, detachable pressing plates 11 are provided at the upper and lower edges of the main keel 1 of the formwork support. At the upper and lower edges on the side of the main keel 1 of the formwork support away from the rubber slurry stop belt 6, bearing plates 12 are fixedly installed. The detachable pressing plates 11 are detachably installed on the bearing plates 12 through bolts, as Figure 3 shown, there is a certain distance between the bearing plate 12 and the edge of the main keel 1 of the formwork support, and this distance is the same as the thickness of the pressing plate 11. When the pressing plate 11 is installed on the bearing plate 12, the top of the pressing plate 11 is flush with the edge of the main keel 1 of the formwork support.

[0041] Bolt holes are provided on both the pressing plate 11 and the bearing plate 12, and bolts are threadedly connected in the bolt holes for installing the pressing plate 11 and the bearing plate 12 together.

[0042] As Figure 5 shown, when installing the rubber slurry stop belt 6, first wind the upper side of the rubber slurry stop belt 6 around the upper edge of the main keel 1 of the formwork support, and attach the upper edge of the rubber slurry stop belt 6 to the bearing plate 12. Then cover the pressing plate 11 on the bearing plate 12 and install it with bolts, pressing the edge of the rubber slurry stop belt 6 between the pressing plate 11 and the bearing plate 12, so as to fix the upper edge of the rubber slurry stop belt 6; then tighten the rubber slurry stop belt 6 and install the lower edge of the rubber slurry stop belt 6. Wind the lower side of the rubber slurry stop belt 6 around the lower edge of the main keel 1 of the formwork support, and attach the lower edge of the rubber slurry stop belt 6 to the bearing plate 12. Then cover the pressing plate 11 on the bearing plate 12 and install it with bolts, and the rubber slurry stop belt 6 can be installed. Compared with installing the rubber slurry stop belt 6 with wire ties, it will not pierce the rubber slurry stop belt 6 and will not cause damage to the rubber slurry stop belt 6, which can increase the service life of the rubber slurry stop belt 6, and the installation is relatively simple and time-saving.

[0043] In addition to the above method, the pressing plate 11 and the bearing plate 12 can also be set in the following way: As Figure 6 shown, the edge of the bearing plate 12 is flush with the edge of the main keel 1 of the formwork support. A plurality of uniformly distributed bolt holes are provided on the bearing plate 12, and bolts are installed in the bolt holes. Bolts are threadedly connected in the bolt holes for installing the pressing plate 11 and the bearing plate 12 together; when the two are installed together, the pressing plate 11 is located at the upper and lower edges of the main keel 1 of the formwork support, and the upper and lower edges of the rubber slurry stop belt 6 are pressed between the pressing plate 11 and the bearing plate 12.

[0044] The specific installation method is as follows: As Figure 7 shown, place the upper and lower side edges of the rubber slurry stop belt 6 between the pressing plate 11 and the bearing plate 12 respectively, so that the rubber slurry stop belt 6 is in a tensioned state, and tighten the bolts to fix the rubber slurry stop belt 6.

[0045] The construction and setting methods of structures such as the edge closing wooden square 5, the mortar plugging belt 4, the bottom slab top reinforcement 8, the bottom slab bottom reinforcement 9, and the fixing reinforcement 10 are the same as those in Embodiment 1.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A construction joint free of chiseling and roughening structure, characterized in that, include: The main keel (1) of the formwork frame has a rubber stopper strip (6) disposed on one side; Fixing steel bars (10) are driven into the construction joint cushion layer; The support frame (3) has one end fixed to the main keel (1) of the formwork frame and the other end fixed to the fixed steel bar, and is used to support the main keel (1) of the formwork frame.

2. The construction joint non-chiseling structure according to claim 1, characterized in that: A secondary keel (7) is fixedly installed in the middle of the main keel (1) of the template frame.

3. The construction joint non-chiseling structure according to claim 2, characterized in that: The rubber stopper strip (6) is tied together with the main keel (1) of the formwork frame.

4. A construction joint non-chiseling structure according to claim 2, characterized in that: Removable pressing plates (11) are provided at the upper and lower edges of the main keel (1) of the formwork frame.

5. The construction joint free of chiseling hair structure according to claim 4, characterized in that: A bearing plate (12) is fixedly mounted on the upper and lower edges of the main keel (1) of the formwork frame away from the rubber grout-stopping strip (6), and a detachable pressing plate (11) is detachably mounted on the bearing plate (12) by means of bolts.

6. The construction joint free of chiseling hair structure according to claim 5, characterized in that: The pressing plate (11) is located on a side of the main keel (1) of the formwork frame away from the rubber stop grouting strip (6); the rubber stop grouting strip (6) passes around the upper and lower edges of the main keel (1) of the formwork frame and is pressed between the pressing plate (11) and the bearing plate (12).

7. A construction joint free of chiseling structure according to claim 6, characterized in that: The pressing plate (11) is located at the upper and lower edges of the main keel (1) of the formwork frame, and the upper and lower edges of the rubber stop strip (6) are pressed between the pressing plate (11) and the bearing plate (12).

8. A construction joint non-chiseling structure according to claim 7, characterized in that: The upper edge and lower edge of the main keel (1) of the formwork frame are respectively provided with edge trimming wood (5) and mortar sealing strips (4).

9. The construction joint non-chiseling structure according to claim 7, characterized in that: The formwork frame main keels (1) are provided with two, and a water-stop steel plate (2) is installed between the two formwork frame main keels (1).

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