Positioning device for butt joint of reinforcing steel bars in modular building
By using a tapered design for the steel bar sleeve in modular buildings, the problems of cumulative error and difficulty in steel bar splicing are solved, achieving precise alignment and efficient construction, and improving the stability and safety of the building.
Patent Information
- Application Number
- CN202520120125.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-20
AI Technical Summary
In existing modular buildings, there are significant cumulative errors and difficulties in connecting steel bars, resulting in time-consuming and labor-intensive processes, and large connection errors between the grouting sleeve and the steel bars.
The steel bar sleeve design includes a first insertion area, a gradually narrowing inner diameter area, and a second insertion area connected sequentially from top to bottom, forming a tapered channel to ensure precise alignment of the steel bars and reduce positional deviations and installation errors.
It improves the accuracy and efficiency of rebar splicing, reduces construction difficulty, enhances the stability and safety of modular buildings, and reduces final placement errors.
Smart Images
Figure CN223738843U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to modularization building butt joint technical field especially relates to a kind of positioning device for steel bar butt joint in modularization building. BACKGROUND
[0002] When modularization building is under construction, it is usually necessary to butt joint two previously prepared building modules vertically aligned, and in this butt joint process, it is usually to use grouting sleeve to insert and connect two previously prepared building modules vertically opposite, and then grout two building modules with completed butt joint through grouting sleeve to fix, so as to realize the butt joint stability between two building modules.
[0003] At present, in order to facilitate butt joint, the inner diameter of grouting sleeve is enlarged to 2-3 centimeters larger than the diameter of butt joint steel bar when most building modules are butt jointed, so as to ensure that two building modules can be butt jointed stably and quickly. However, the butt joint by this method will cause large cumulative error in the process of butt joint, and since all grouting sleeves and steel bars need to be aligned at one time during butt joint, it leads to large butt joint difficulty, large butt joint error between grouting sleeve and steel bar during butt joint, time-consuming and laborious. SUMMARY
[0004] (I) Technical problem to be solved
[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a positioning device for steel bar butt joint in modularization building, which solves the technical problems of large cumulative error, large butt joint difficulty and large butt joint error between grouting sleeve and steel bar during butt joint when most building modules are butt jointed.
[0006] (II) Technical scheme
[0007] In order to achieve the above-mentioned purpose, the utility model adopts the main technical scheme including:
[0008] The utility model provides a kind of positioning device for butt joint of reinforcing bar in modular building, and the modular building includes upper module and lower module, and the one-to-one grouting sleeve and butt joint reinforcing bar respectively inserted into the bottom of upper module and the top of lower module, the positioning device includes reinforcing bar sleeve;The reinforcing bar sleeve is embedded in the bottom of the upper module and is located below the grouting sleeve, the top of the reinforcing bar sleeve is communicated with the bottom of the grouting sleeve, and the bottom of the reinforcing bar sleeve can be butt jointed with the butt joint reinforcing bar;The reinforcing bar sleeve includes first insertion area, inner diameter tapering area and second insertion area sequentially connected from top to bottom, the first insertion area, the inner diameter tapering area and the second insertion area form tapered channel in the reinforcing bar sleeve, the diameter of the first insertion area is smaller than the diameter of the second insertion area, and the diameter of the first insertion area and the second insertion area is greater than the diameter of the butt joint reinforcing bar.
[0009] Preferably, the reinforcing bar sleeve, the grouting sleeve and the butt joint reinforcing bar are provided with multiple, one-to-one correspondence between multiple reinforcing bar sleeves, multiple grouting sleeves and multiple butt joint reinforcing bars.
[0010] Preferably, the axes of the grouting sleeve, the first insertion area of the reinforcing bar sleeve, the inner diameter tapering area, the second insertion area and the butt joint reinforcing bar are consistent.
[0011] Preferably, the diameter of the first insertion area ranges from 35mm to 45mm, the diameter of the second insertion area ranges from 55mm to 65mm, and the cross-sectional diameter of the butt joint reinforcing bar ranges from 29mm to 35mm.
[0012] Preferably, the included angle between the generatrix of the inner diameter tapering area and the axis ranges from 5° to 10°.
[0013] Preferably, the depth of the inner diameter tapering area ranges from 50mm to 120mm.
[0014] Preferably, the multiple butt joint reinforcing bars are divided into multiple groups, and multiple butt joint reinforcing bars collectively form a rectangle and are located at the edge of the lower module;Each group of butt joint reinforcing bars includes four butt joint reinforcing bars, and the midpoints of the four butt joint reinforcing bars located in the same plane form a square.
[0015] Preferably, the side length of the square ranges from 235mm to 245mm.
[0016] Preferably, the four butt joint reinforcing bars include two short reinforcing bars and two long reinforcing bars, and the two short reinforcing bars and the two long reinforcing bars are diagonally arranged.
[0017] Preferably, the height between the top of the long reinforcement and the top of the lower module is greater than the height between the top of the short reinforcement and the top of the lower module.
[0018] (Three) beneficial effects
[0019] The beneficial effects of the utility model are:
[0020] The utility model discloses a reinforcing steel bar sleeve is provided with first insertion area, inner diameter tapering area and second insertion area that are connected in turn from top to bottom, which can effectively improve the positioning accuracy when the reinforcing steel bar sleeve of upper module is connected with the butt joint reinforcing steel of lower module. Wherein, by setting inner diameter tapering area, it can guide the butt joint reinforcing steel to enter the inside of reinforcing steel bar sleeve accurately, reduce the installation error caused by position deviation, ensure the accuracy of reinforcing steel butt joint, make reinforcing steel butt joint more simple and convenient at the same time, do not need complex alignment operation, speed up the construction progress, reduce the construction difficulty, improve the construction efficiency, thereby reduce the final landing error when upper module and lower module are connected. Moreover, while ensuring that the error is small when connecting, the stability after the butt joint of upper module and lower module is improved, and the safety is improved. By making the diameter of first insertion area less than the diameter of second insertion area, a gradually expanding conical structure is formed from top to bottom, which can guide the butt joint reinforcing steel to enter the reinforcing steel bar sleeve smoothly, and reduce the alignment difficulty and installation error. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is a stereogram of the positioning device for reinforcing steel butt joint in modular building of the utility model;
[0022] Figure 2 It is a sectional view schematic diagram of the grouting sleeve and reinforcing steel sleeve of the positioning device for reinforcing steel butt joint in modular building of the utility model;
[0023] Figure 3 It is a stereogram of the connection of lower module and butt joint reinforcing steel of the positioning device for reinforcing steel butt joint in modular building of the utility model;
[0024] Figure 4 It is Figure 3 It is a structure enlarged schematic diagram of A in the utility model.
[0025]
Explanation of reference signs
[0026] 1: modular building;11: upper module;12: lower module;2: grouting sleeve;3: butt joint reinforcing steel;31: short reinforcing steel;32: long reinforcing steel;4: reinforcing steel sleeve;41: first insertion area;42: inner diameter tapering area;43: second insertion area. DETAILED DESCRIPTION
[0027] In order to better explain the utility model, in order to facilitate understanding, the utility model is described in detail below by specific embodiments combined with the drawings.
[0028] As Figure 1 shown, the positioning device for the butt joint of reinforcing bars in the modular building 1 of the embodiment includes a reinforcing bar sleeve 4.
[0029] Specifically, as Figure 1 and Figure 2 shown, the reinforcing bar sleeve 4 is embedded in the bottom of the upper module 11 and below the grouting sleeve 2, the top of the reinforcing bar sleeve 4 is in communication with the bottom of the grouting sleeve 2, and the bottom of the reinforcing bar sleeve 4 can be butt jointed with the butt joint reinforcing bar 3. The reinforcing bar sleeve 4 includes a first insertion area 41, an inner diameter tapering area 42 and a second insertion area 43 connected in sequence from top to bottom, and the first insertion area 41, the inner diameter tapering area 42 and the second insertion area 43 form a tapered channel with a small top and a large bottom in the reinforcing bar sleeve 4. The diameter of the first insertion area 41 is smaller than that of the second insertion area 43, and the diameters of the first insertion area 41 and the second insertion area 43 are both larger than that of the butt joint reinforcing bar 3. By providing the reinforcing bar sleeve 4 and arranging the first insertion area 41, the inner diameter tapering area 42 and the second insertion area 43 connected in sequence from top to bottom, the positioning accuracy when the reinforcing bar sleeve 4 of the upper module 11 is butt jointed with the butt joint reinforcing bar 3 of the lower module 12 can be effectively improved. By arranging the inner diameter tapering area 42, the butt joint reinforcing bar 3 can be guided to enter the inside of the reinforcing bar sleeve 4 accurately, installation errors caused by position deviation are reduced, the accuracy of the butt joint of reinforcing bars is ensured, the butt joint of reinforcing bars is made more convenient and fast, complex alignment operations are not needed, the construction progress is accelerated, the construction difficulty is reduced, and the construction efficiency is improved, so that the final positioning error when the upper module 11 and the lower module 12 are butt jointed is reduced. Moreover, while ensuring that the error during butt jointing is small, the stability after the butt jointing of the upper module 11 and the lower module 12 is improved, and the safety is improved. By arranging the diameter of the first insertion area 41 to be smaller than that of the second insertion area 43 and forming a tapered structure gradually expanding from top to bottom, the butt joint reinforcing bar 3 can be guided to enter the reinforcing bar sleeve 4 smoothly, and alignment difficulties and installation errors are reduced.
[0030] Further, the steel sleeve 4, the grouting sleeve 2 and the butt joint steel bar 3 are provided in plurality, and the plurality of steel sleeves 4, the plurality of grouting sleeves 2 and the plurality of butt joint steel bars 3 are one-to-one corresponding. By providing the plurality of steel sleeves 4, the plurality of grouting sleeves 2 and the plurality of butt joint steel bars 3, the force transmission can be more evenly distributed, thereby enhancing the overall structural strength and stability of the modular building 1, and especially when bearing a larger load or encountering natural disasters such as earthquakes, better support and protection can be provided.
[0031] Further, the axis of the one-to-one corresponding grouting sleeve 2, the first insertion area 41, the inner diameter tapering area 42 and the second insertion area 43 of the steel sleeve 4 and the butt joint steel bar 3 are consistent, which ensures that the steel bar can accurately enter the steel sleeve 4 during butt joint, reduces the deviation of alignment, and improves the accuracy and reliability of the steel butt joint. At the same time, the axis consistency of the steel sleeve 4, the grouting sleeve 2 and the butt joint steel bar 3 can make the force transmission more uniform and direct, reduce the stress concentration phenomenon, and enhance the overall stability and shear resistance of the modular building 1.
[0032] Further, as shown in Figure 2 the diameter range of the first insertion area 41 is 35mm-45mm, the diameter range of the second insertion area 43 is 55mm-65mm, and the cross-sectional diameter range of the butt joint steel bar 3 is 29mm-35mm, which can ensure that the butt joint steel bar 3 has a proper gap when entering the steel sleeve 4, facilitate guiding and correcting the position, and improve the accuracy and reliability of the steel butt joint. It is noted that the specifications of the steel sleeve 4, the number of groups of butt joint steel bars 3, the number of steel bars in each group of butt joint steel bars 3, the interval of the arrangement of the butt joint steel bars 3 and the specifications of the butt joint steel bars 3 can be adjusted according to the actual construction situation.
[0033] Further, the included angle between the generatrix of the inner diameter tapering area 42 and the axis is in the range of 5°<α<10°. By setting the included angle between the generatrix of the inner diameter tapering area 42 and the axis in the range of 5°-10°, a gentle conical structure is formed to facilitate guiding the butt joint steel bar 3 to smoothly enter the steel sleeve 4, reduce the difficulty of alignment and installation errors, and improve the accuracy and reliability of the steel butt joint.
[0034] Further, the depth of the inner diameter tapering area 42 is in the range of 50mm<h<120mm, which can ensure that the long steel bar 32 and the short steel bar 31 are gradually guided to the coaxial position during the insertion process, reduce the deviation, improve the positioning accuracy of the steel butt joint, and thereby ensure the accuracy of the building structure.
[0035] Further, as shown in Figure 3As shown, the plurality of butt-jointed steel bars 3 are divided into multiple groups, and the multiple groups of butt-jointed steel bars 3 jointly form a rectangle and are located at the edges of the lower module 12, which can more evenly distribute the load, reduce local stress concentration, and improve the stability and carrying capacity of the entire building structure. Each group of butt-jointed steel bars 3 includes four butt-jointed steel bars 3, and the midpoints of the four butt-jointed steel bars 3 in the same plane form a square, which forms multiple stable support points, enhances the connection strength between the modules, and improves the overall rigidity and shear resistance of the structure. Preferably, the side length of the square ranges from 235 mm to 245 mm, which can provide sufficient support force and stability, effectively prevent the steel bars from deviating or deforming during butt joint, and thus strengthen the structural stability and seismic performance of the modular building 1.
[0036] Further, as shown, Figure 4 The four butt-jointed steel bars 3 include two short steel bars 31 and two long steel bars 32, which only need to be butt-jointed first when butt-jointing the upper module 11 and the lower module 12, that is, the long steel bars 32 are first sequentially passed through the second insertion area 43 and the inner diameter tapering area 42, the long steel bars 32 and the steel bar sleeves 4 corresponding to the long steel bars 32 are aligned, the steel bar sleeves 4 corresponding to the short steel bars 31 are aligned with the short steel bars 31 in turn, and the short steel bars 31 are sequentially passed through the second insertion area 43, the inner diameter tapering area 42, and the first insertion area 41 to be butt-jointed, thereby improving the working efficiency and reducing the butt-joint error when butt-jointing the upper module 11 and the lower module 12. The two short steel bars 31 and the two long steel bars 32 are diagonally arranged, which can better disperse and transfer the load and avoid local stress concentration, thereby reducing the risk of structural fatigue and damage and prolonging the service life of the building.
[0037] Further, the height between the top of the long steel bar 32 and the top of the lower module 12 is greater than the height between the top of the short steel bar 31 and the top of the lower module 12, which can realize butt-jointing of the two long steel bars 32 first when butt-jointing the upper module 11 and the lower module 12, thereby improving the butt-jointing efficiency. Preferably, the height of the long steel bar 32 beyond the top of the short steel bar 31 is preferably between 100 mm and 200 mm, which not only ensures sufficient guiding distance when butt-jointing the upper module 11 and the lower module 12, but also does not increase the burden of butt-jointing work, reduces the material usage, and lowers the production cost. If the length of the long steel bar 32 exceeds 200 mm, the steel bar sleeve 4 and the grouting sleeve 2 are sequentially butt-jointed with the long steel bar 32 when butt-jointing the upper module 11 and the lower module 12, and the length of the long steel bar 32 is too long, which is prone to cause bending of the long steel bar 32 during butt-jointing, thereby causing the steel bar sleeve 4 butt-jointed with the short steel bar 31 to fail to align with the short steel bar 31, and making the butt-jointing of the upper module 11 and the lower module 12 more complex. It is noted that the length of the grouting sleeve 2 increases with the increase of the length of the long steel bar 32, and the longer the length of the long steel bar 32, the longer the length of the grouting sleeve 2.
[0038] The first insertion area 41, the inner diameter tapering area 42, the second insertion area 43, the long reinforcing steel bars 32 and the short reinforcing steel bars 31 of the reinforcing steel sleeve 4 enable the reinforcing steel sleeve 4 corresponding to the long reinforcing steel bar 32 in the upper module 11 to be firstly docked when the upper module 11 and the lower module 12 are docked, and the short reinforcing steel bar 31 and the reinforcing steel sleeve 4 corresponding to the short reinforcing steel bar 31 are aligned in the process of continuous falling, thereby ensuring the stability during docking, improving the falling position efficiency during docking, saving more than half of the docking time of the upper module 11 and the lower module 12, reducing the docking error of the upper module 11 and the lower module 12 by more than 10mm, reducing the error rate, reducing the rework times during docking, and improving the hoisting work efficiency.
[0039] It should be noted that the grouting inlet and the grouting outlet are arranged on the outer walls of the reinforcing steel sleeve 4 and the grouting sleeve 2 respectively, the grouting inlet is arranged at the lower part of the reinforcing steel sleeve 4, so that the air is prevented from being retained in the reinforcing steel sleeve 4 to form a cavity, thereby improving the compactness and quality of grouting, the grouting outlet is arranged at the upper part of the grouting sleeve 2, so that the excess grouting material or air can be smoothly discharged during grouting, thereby further ensuring that the grouting material completely fills all the gaps in the reinforcing steel sleeve 4 and the grouting sleeve 2, and enhancing the strength and durability of the connection between the upper module 11 and the lower module 12. It should be noted that the lower part of the reinforcing steel sleeve 4 and the upper part of the grouting sleeve 2 refer to below and above the center points of the reinforcing steel sleeve 4 and the grouting sleeve 2.
[0040] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0041] In the present application, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be connected, or it can be detachable, or it can be integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0042] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature, which can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "under" and "under" the second feature, which can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.
[0043] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.
[0044] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can modify, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A positioning device for butt joining of reinforcement bars in a modular building, said modular building (1) comprising an upper module (11) and a lower module (12), and a one-to-one corresponding grout sleeve (2) and butt joining reinforcement bar (3) inserted into the bottom of the upper module (11) and the top of the lower module (12) respectively, characterized in that, The positioning device comprises a reinforcing sleeve (4); The reinforcing sleeve (4) is embedded in the bottom of the upper module (11) and below the grouting sleeve (2), the top of the reinforcing sleeve (4) communicates with the bottom of the grouting sleeve (2), and the bottom of the reinforcing sleeve (4) can be docked with the docking reinforcing bar (3); The reinforcing sleeve (4) comprises a first insertion area (41), an inner diameter tapering area (42) and a second insertion area (43) connected in sequence from top to bottom, the first insertion area (41), the inner diameter tapering area (42) and the second insertion area (43) form a tapered channel with a small top and a large bottom in the reinforcing sleeve (4), the diameter of the first insertion area (41) is smaller than that of the second insertion area (43), and the diameters of the first insertion area (41) and the second insertion area (43) are both larger than that of the docking reinforcing bar (3).
2. The positioning device for docking reinforcing bars in modular buildings according to claim 1, wherein: The reinforcing sleeve (4), the grouting sleeve (2) and the docking reinforcing bar (3) are all provided with a plurality of reinforcing sleeves (4), grouting sleeves (2) and docking reinforcing bars (3), and the plurality of reinforcing sleeves (4), grouting sleeves (2) and docking reinforcing bars (3) are one-to-one corresponding.
3. The positioning device for docking reinforcing bars in modular buildings according to claim 2, wherein: The axes of the one-to-one corresponding grouting sleeve (2), the first insertion area (41), the inner diameter tapering area (42), the second insertion area (43) of the reinforcing sleeve (4) and the docking reinforcing bar (3) are consistent.
4. The positioning device for docking reinforcing bars in modular buildings according to claim 3, wherein: The diameter of the first insertion area (41) ranges from 35mm to 45mm, the diameter of the second insertion area (43) ranges from 55mm to 65mm, and the cross-sectional diameter of the docking reinforcing bar (3) ranges from 29mm to 35mm.
5. The positioning device for docking reinforcing bars in modular buildings according to claim 3, wherein: The included angle between the generatrix of the inner diameter tapering area (42) and the axis ranges from 5° to 10°.
6. The positioning device for docking reinforcing bars in modular buildings according to claim 5, wherein: The depth of the inner diameter tapering area (42) ranges from 50mm to 120mm.
7. The positioning device for docking reinforcing bars in modular buildings according to claim 2, wherein: The plurality of docking reinforcing bars (3) are divided into multiple groups, and the multiple groups of docking reinforcing bars (3) jointly form a rectangle and are located at the edges of the lower module (12); Each group of docking reinforcing bars (3) comprises four docking reinforcing bars (3), and the midpoints of the four docking reinforcing bars (3) located in the same plane form a square.
8. The positioning device for docking reinforcing bars in modular buildings according to claim 7, wherein: The side length of the square ranges from 235mm to 245mm.
9. A positioning device for butt joining of steel bars in modular construction as claimed in claim 7 wherein: The four said butt joined steel bars (3) comprise two short steel bars (31) and two long steel bars (32), the two short steel bars (31) and the two long steel bars (32) are diagonally arranged.
10. A positioning device for butt joining of steel bars in modular construction as claimed in claim 9 wherein: The height between the top of the long steel bar (32) to the top of the lower module (12) is greater than the height between the top of the short steel bar (31) to the top of the lower module (12).