Infilled wall tie bar connector
By using a connector for sleeves and anchoring steel bars, the problems of formwork damage and difficulty in controlling construction quality during the construction of tie bars in infill walls in existing technologies have been solved, achieving efficient and stable connection results and reducing construction costs and time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-04-07
AI Technical Summary
Existing technologies for constructing tie bars in infill walls in building engineering suffer from problems such as damaged formwork, difficulty in demolding, loose tie bars, inaccurate drilling, difficulty in guaranteeing the quality of the anchoring adhesive, and lack of specific standards, making it difficult to control the construction quality.
The connection method using sleeves and anchor bars involves installing sleeves inside the concrete frame columns, and connecting the anchor bars and tie bars of the infill wall with the sleeve threads, combined with hexagonal bolts for fixing. This achieves the pre-embedding of the tie bars and subsequent mechanical connection, avoiding the drilling and rebar installation process.
It improves connection strength, reduces construction costs, simplifies the process, ensures construction quality and efficiency, and avoids damage to formwork and uncertainty in rebar adhesive.
Smart Images
Figure CN224092845U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the construction technology field of frame filler wall tieback reinforcement installation in building construction, and particularly relates to a filler wall tieback reinforcement connector. BACKGROUND
[0002] At present, in the frame and frame-shear structure of building engineering, the embedding method of filler wall body tieback reinforcement mainly includes two types, one is the first embedding method, and the other is the second embedding method. ① The first embedding method: when the formwork of the vertical wall column is set, the hole is drilled by the impact drill and the reinforcement is inserted. The disadvantage is that the hole in the formwork causes the damage of the formwork, and it is difficult to remove the formwork, and the tieback reinforcement is easy to slide down and deviate during the pouring of concrete. Or the tieback reinforcement is placed in the concrete protective layer by sticking to the inner side of the formwork, and the tieback reinforcement is immediately chiseled out from the concrete after the formwork is removed. The damage of the concrete surface is caused when the tieback reinforcement is removed after the formwork is removed. This construction technology is rarely used. ② The second embedding method: chemical method is mostly used. The chemical method is to drill a hole on the side surface of the concrete column or wall by the impact drill at the mortar joint of the masonry before the masonry is built after the construction of the concrete structure, and then the high-strength anchoring adhesive is injected after the hole is cleaned, and then the tieback reinforcement is inserted. After the anchoring adhesive is solidified, the tieback reinforcement and the base material are bonded into one body, which is a widely used construction technology.
[0003] The chemical method is widely used in practical engineering, but there are many deficiencies in the construction technology. Including: when the hole is mechanically drilled on the side surface of the concrete column or wall, the depth of the hole cannot be guaranteed; when the hole is drilled, it is more difficult to drill the hole when the hole encounters the reinforcement in the concrete, and it is very difficult to handle the dust in the hole; the anchoring adhesive is mostly a bulk product, and the quality cannot be guaranteed; the compactness of the adhesive glue cannot be guaranteed when the anchoring is performed; the level of the operator and the construction environment have a great influence; the data results of the pull-out test cannot meet the specification requirements, and the actual quality of the project cannot be reflected; there is no specific and operable standard for the chemical anchoring technology, and only the JGJ145 Concrete Structure Post Anchoring Technical Specification can be referred to for execution. There are many non-specific problems in the construction and acceptance of the tieback reinforcement. At the same time, the local standards of some provinces in China also clearly prohibit the use of chemical anchoring technology for the tieback reinforcement of filler wall body, and therefore a filler wall tieback reinforcement connector is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL
[0004] (I) Technical problem solved
[0005] In view of the deficiencies of the prior art, the utility model provides a filler wall tieback reinforcement connector, which solves the problems in the above background technology.
[0006] (II) Technical scheme
[0007] The utility model discloses in order to realize above-mentioned purpose specifically adopts following technical scheme:
[0008] A filler wall tie connector, including sleeve and concrete frame column, be equipped with sleeve in the concrete frame column, the right end of sleeve is contacted with anchoring reinforcement movably, the end of anchoring reinforcement is fixedly connected with the hook, is equipped with internal thread on anchoring reinforcement, the left end of anchoring reinforcement is equipped with and is fixed with first screw thread, and anchoring reinforcement is connected through first screw thread with the internal thread on sleeve, the left side of sleeve is equipped with composite wood form, and the hexagon bolt is contacted with sleeve movably on composite wood form, and the hexagon bolt is connected through internal thread with sleeve, the left side of sleeve is also equipped with filler wall tie, and the right end of filler wall tie is equipped with and is fixed with second screw thread, and filler wall tie is connected through second screw thread with the internal thread on sleeve.
[0009] Further, the composite wood form is provided with a through hole, and the composite wood form is movably contacted with the hexagon bolt through the through hole.
[0010] Further, the sleeve is a seamless steel pipe, and the wall thickness of the seamless steel pipe is 3.7 mm.
[0011] Further, the anchoring reinforcement 2 is made of a steel bar with a diameter of Φ6 and a length of 200 mm.
[0012] Further, the first screw thread and the second screw thread are both coarse ordinary straight thread external threads, the external thread diameter is 5.97 mm, the middle diameter is 5.345 mm, the small diameter is 4.72 mm, the pitch is 1 mm, the thread height is 0.625 mm, the thread type is triangular, and the thread type angle is 60 degrees.
[0013] Further, the sleeve has a length of 40 mm and an external diameter of 12 mm, the internal thread has a large diameter of 6 mm, a middle diameter of 5.375 mm, a small diameter of 4.75 mm, a pitch of 1 mm, a thread height of 0.625 mm, a thread type of triangular, and a thread type angle of 60 degrees.
[0014] Further, the hexagon bolt has a diameter of 6 mm, a thread length of 30 mm, is a coarse ordinary straight thread external thread, has an external thread diameter of 5.97 mm, a middle diameter of 5.345 mm, a small diameter of 4.72 mm, a pitch of 1 mm, a thread height of 0.625 mm, a thread type of triangular, and a thread type angle of 60 degrees.
[0015] (Three) beneficial effects
[0016] Compared with the prior art, the filler wall tie connector has the following beneficial effects:
[0017] The utility model discloses, before concrete frame column installation, set up through -hole on composite wood formwork, drive sleeve surface with composite wood formwork inboard vertical plane to stick together, align composite formwork through -hole, use hexagon bolt to pass through the through -hole of composite wood formwork and the sleeve of inboard and tighten compaction, be used for fixed sleeve embedded part, before composite wood formwork dismantling, first remove hexagon bolt, after composite wood formwork dismantling, again install hexagon bolt in situ, temporarily block the hole of sleeve, after concrete frame column pouring, composite wood formwork has been dismantled, after concrete reaches design strength, before filling wall masonry, first remove temporarily block the hexagon bolt of sleeve, again the one end of filling wall tieback reinforcement drive second screw thread and pre -buried sleeve mechanical connection and tighten, filling wall tieback reinforcement and the two end portions of anchoring steel bar mutual tamping in sleeve middle position, and the investment cost is less, and the connecting strength is high, saves the construction period, and the construction is convenient. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;
[0019] Figure 2 It is the three -dimensional structure schematic diagram of the utility model Figure 1 It is the three -dimensional structure schematic diagram of the utility model
[0020] Figure 3 It is the three -dimensional structure schematic diagram of the utility model concrete frame column and filling wall tieback reinforcement connection;
[0021] Figure 4 It is the three -dimensional structure schematic diagram of the utility model filling wall tieback reinforcement and sleeve.
[0022] In the drawing: 1, sleeve;2, anchoring steel bar;3, hook;4, first screw thread;5, internal thread;6, composite wood formwork;7, hexagon bolt;8, concrete frame column;9, filling wall tieback reinforcement;10, second screw thread;11, through -hole. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0024] EMBODIMENT
[0025] As Figures 1-4As shown in the figure, an embodiment of the present invention provides a connector for infill wall tie bars, including a sleeve 1 and a concrete frame column 8. The sleeve 1 is installed inside the concrete frame column 8. An anchoring rebar 2 is movably contacted at the right end of the sleeve 1. A hook 3 is fixedly connected to the end of the anchoring rebar 2, and an internal thread 5 is provided on the anchoring rebar 2. A first thread 4 is fitted and fixed at the left end of the anchoring rebar 2, and the anchoring rebar 2 is threadedly connected to the internal thread 5 on the sleeve 1 through the first thread 4. A composite wood template 6 is provided on the left side of the sleeve 1, and a hexagonal bolt 7 is movably contacted on the composite wood template 6. The hexagonal bolt 7 is threadedly connected to the sleeve 1 through the internal thread 5. An infill wall tie bar 9 is also provided on the left side of the sleeve 1, and a second thread 10 is fitted and fixed at the right end of the infill wall tie bar 9, and the infill wall tie bar 9 is threadedly connected to the internal thread 5 on the sleeve 1 through the second thread 10. Before installation of the concrete frame column 8, a through hole 11 with a diameter of 7mm is opened in the composite wood template 6. The location, elevation, and quantity of through holes 11 are constructed according to the requirements for setting tie bars. The sleeve 1 of the anchoring steel bar 2 is attached to the inner vertical surface of the composite wood formwork 6, aligned with the through hole 11 of the composite wood formwork 6. Hex bolts 7 are passed through the through hole 11 of the composite wood formwork 6 and tightened to the inner sleeve 1 to fix the embedded parts of the sleeve 1. Before removing the composite wood formwork 6, the hex bolts 7 are removed first. After the composite wood formwork 6 is removed, the hex bolts 7 are reinstalled in their original positions to temporarily seal the hole of the sleeve 1. After the concrete frame column 8 is poured, the composite wood formwork 6 has been removed, and the concrete has reached the design strength, before the infill wall is built, the hex bolts 7 temporarily sealing the sleeve 1 are removed first. Then, the tie bar 9 of the infill wall drives one end of the second thread 10 to the embedded sleeve 1 and is mechanically connected and tightened. The two ends of the tie bar 9 of the infill wall and the anchoring steel bar 2 are pressed against each other in the middle of the sleeve 1. The investment cost is low, the connection strength is high, the construction period is saved, and the construction is convenient.
[0026] In some embodiments, the composite wood template 6 has a through hole 11, through which the composite wood template 6 is in contact with the hexagonal bolt 7.
[0027] In some embodiments, the sleeve 1 is made of seamless steel pipe with a wall thickness of 3.7mm. Since there are no welds, the seamless steel pipe has a more uniform overall structure and can withstand higher pressure. The 3.7mm wall thickness of the seamless steel pipe further enhances its pressure-bearing capacity, enabling the sleeve 1 to remain stable under high pressure.
[0028] In some embodiments, the anchoring reinforcement 2 uses a steel bar with a diameter of Φ6 and a length of 200mm. The Φ6 diameter steel bar has a sufficient cross-sectional area to withstand large tensile forces, thereby enhancing the tensile strength of the concrete structure. This is crucial for preventing cracks or fractures in the structure under stress.
[0029] In some embodiments, the first thread 4 and the second thread 10 are both coarse-pitch ordinary straight external threads with an outer diameter of 5.97 mm, a pitch diameter of 5.345 mm, a minor diameter of 4.72 mm, a pitch of 1 mm, a thread height of 0.625 mm, a triangular tooth profile, and a tooth profile angle of 60 degrees. The precise design of parameters such as the outer diameter, pitch diameter, minor diameter, and pitch makes the fit between the threads tighter and reduces the risk of loosening and falling off.
[0030] In some embodiments, the sleeve 1 has a length of 40mm, an outer diameter of 12mm, an internal thread 5 with a major diameter of 6mm, a pitch diameter of 5.375mm, a minor diameter of 4.75mm, a pitch of 1mm, a thread height of 0.625mm, a triangular tooth profile, and a tooth profile angle of 60 degrees. The design of the triangular tooth profile angle of 60 degrees makes the engagement between the threads tighter, while reducing the frictional resistance during rotation and improving the smoothness and efficiency of operation.
[0031] In some embodiments, the hex bolt 7 has a diameter of 6mm, a thread length of 30mm, a coarse-pitch ordinary straight thread, an outer thread diameter of 5.97mm, a pitch diameter of 5.345mm, a minor diameter of 4.72mm, a pitch of 1mm, a thread height of 0.625mm, a triangular thread profile, and a thread angle of 60 degrees. The coarse-pitch ordinary straight thread design provides good engagement force and shear resistance, ensuring the firmness and stability of the connection. The external thread form further enhances the tightness of the connection and reduces the risk of loosening and falling off.
[0032] Working principle or structural principle: Before installing the concrete frame column 8, through holes 11 with a diameter of 7mm are made in the composite wood formwork 6. The position, elevation, and number of through holes 11 are constructed according to the requirements for setting tie bars. The sleeve 1 that drives the anchoring steel bar 2 is attached to the inner side of the composite wood formwork 6, aligned with the through hole 11 of the composite wood formwork 6. Hex bolts 7 are passed through the through hole 11 of the composite wood formwork 6 and tightened to the inner sleeve 1 to fix the embedded parts of the sleeve 1. Before removing the composite wood formwork 6, the hex bolts 7 are removed first. After the template 6 is removed, the hexagonal bolts 7 are reinstalled in their original positions. The holes of the sleeve 1 are temporarily sealed. After the concrete frame column 8 is poured and the composite wood template 6 has been removed, and the concrete reaches the design strength, before the infill wall is built, the hexagonal bolts 7 of the temporary sealing sleeve 1 are removed. Then, the tie bar 9 of the infill wall drives one end of the second thread 10 to the pre-embedded sleeve 1 and tightens it. The two ends of the tie bar 9 of the infill wall and the anchor bar 2 are pressed against each other in the middle of the sleeve 1. The investment cost is low, the connection strength is high, the construction period is saved, and the construction is convenient.
[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A connector for tie bars in infill walls, comprising a sleeve (1) and a concrete frame column (8), characterized in that: The concrete frame column (8) is provided with a sleeve (1). The right end of the sleeve (1) is in contact with an anchoring steel bar (2). The end of the anchoring steel bar (2) is fixedly connected with a hook (3). The anchoring steel bar (2) is provided with an internal thread (5). The left end of the anchoring steel bar (2) is fitted with and fixed with a first thread (4). The anchoring steel bar (2) is threadedly connected to the internal thread (5) on the sleeve (1) through the first thread (4). A composite wood template (6) is provided on the left side. A hexagonal bolt (7) is movably contacted on the composite wood template (6). The hexagonal bolt (7) is threadedly connected to the sleeve (1) through the internal thread (5). A filler wall tie bar (9) is also provided on the left side of the sleeve (1). A second thread (10) is sleeved and fixed on the right end of the filler wall tie bar (9). The filler wall tie bar (9) is threadedly connected to the internal thread (5) on the sleeve (1) through the second thread (10).
2. The infill wall tie bar connector according to claim 1, characterized in that: The composite wood template (6) has a through hole (11) and the composite wood template (6) is in contact with the hexagonal bolt (7) through the through hole (11).
3. A connector for tie bars in infill walls according to claim 2, characterized in that: The sleeve (1) is made of seamless steel pipe with a wall thickness of 3.7 mm.
4. A connector for tie bars in infill walls according to claim 3, characterized in that: The anchoring steel bar (2) has a diameter of Φ6 and a length of 200mm.
5. A connector for tie bars in infill walls according to claim 4, characterized in that: The first thread (4) and the second thread (10) are both coarse-tooth ordinary straight external threads with an outer diameter of 5.97 mm, a pitch diameter of 5.345 mm, a minor diameter of 4.72 mm, a pitch of 1 mm, a thread height of 0.625 mm, a triangular tooth profile, and a tooth angle of 60 degrees.
6. A connector for tie bars in infill walls according to claim 5, characterized in that: The sleeve (1) has a length of 40mm and an outer diameter of 12mm. The internal thread (5) has a major diameter of 6mm, a medium diameter of 5.375mm, a minor diameter of 4.75mm, a pitch of 1mm, a thread height of 0.625mm, a triangular tooth profile, and a tooth angle of 60 degrees.
7. A connector for tie bars in infill walls according to claim 6, characterized in that: The hexagonal bolt (7) has a diameter of 6mm, a thread length of 30mm, a coarse-tooth ordinary straight thread, an outer diameter of 5.97mm, a pitch diameter of 5.345mm, a minor diameter of 4.72mm, a pitch of 1mm, a thread height of 0.625mm, a triangular tooth profile, and a tooth angle of 60 degrees.