Formwork-free wood board and wood beam and concrete combined joint
Through the combination nodes of wooden plank beams and concrete without formwork, the problem of extended construction period in traditional construction methods is solved, and the construction time is shortened and efficiency is improved.
Patent Information
- Application Number
- CN202421965912.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-14
AI Technical Summary
In traditional concrete construction methods, casting models and painting decorations need to be removed, resulting in an extended construction period.
The form-free wooden beams and concrete combination nodes are used to form integrated concrete beams and floor slabs through pallets, steel cages, anti-detachment components and other components, avoiding the removal of formwork and painting steps.
It shortens construction time, improves construction efficiency, and reduces the time and cost of manual operation.
Smart Images
Figure CN222976387U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of engineering construction, and particularly relates to a combined node of wooden boards and wooden beams without formwork and concrete. Background Art
[0002] A concrete joint refers to the part connecting components such as beams, columns, and walls in a concrete structure, usually composed of concrete, steel bars, and connectors. Its function is to bear and transfer structural loads to ensure the stability and safety of the structure.
[0003] In traditional construction methods, workers usually need to use formwork on-site to build the pouring models for concrete beams and floors, then place steel bar cages in the pouring models, and finally embed the steel bar cages in the concrete pouring models. After the poured concrete solidifies, workers remove the formwork for assisting concrete pouring, and finally workers will paint and beautify the poured concrete beams and floors.
[0004] In the process of using the above technology, after the concrete solidifies, workers need to remove the pouring models of the concrete beams and floors, and then they also need to paint and beautify the poured concrete beams and floors. Removing the pouring models and painting the concrete beams and floors both require a lot of time, and this process will lead to an extension of the construction period of the building, which has deficiencies. Utility Model Content
[0005] In order to improve the problem of long construction period of buildings, this application provides a combined node of wooden boards and wooden beams without formwork and concrete.
[0006] The combined node of wooden boards and wooden beams without formwork provided by this application adopts the following technical solutions:
[0007] A combined node of wooden boards and wooden beams without formwork includes a plurality of top plates. A steel bar cage is arranged between two adjacent top plates. A support plate is arranged at the bottom of the steel bar cage. Two ends of the support plate are respectively connected to the top plates on both sides of the steel bar cage. A steel bar mesh is arranged on the top plates. Concrete is poured on the top plates. Both the steel bar cage and the steel bar mesh are embedded in the concrete. An anti-disengagement member is arranged between the top plates and the concrete. The anti-disengagement member is used to fix the top plates on the concrete. A tensioning assembly is arranged between two adjacent top plates. The tensioning assembly is used to tension two adjacent top plates.
[0008] By adopting the above technical solution, the worker installs the pallet between two top plates. The two top plates and the pallet form a casting model for casting a concrete beam. Then the worker places the steel reinforcement cage on the pallet. After that, the worker uses the tensioning component to pull the two top plates on both sides of the steel reinforcement cage. Then, an anti-disengagement part is installed on the top plate and a steel mesh is laid. Finally, concrete is poured to form an integral concrete beam and floor slab. When the concrete solidifies, the top plate is fixed on the concrete, and the lower surface of the top plate becomes the inner top of the building. This operation does not require disassembling the top plate and does not require plastering the concrete beam and floor slab, shortening the construction time required.
[0009] Optionally, the anti-disengagement part includes an anti-disengagement rod. An anti-disengagement notch for inserting the anti-disengagement rod is formed on the top plate. An anti-disengagement cone is coaxially arranged on the anti-disengagement rod. The diameter of the anti-disengagement cone gradually increases along the direction from the anti-disengagement rod to the anti-disengagement cone. A tensioning ring is slidably sleeved on the anti-disengagement rod. The anti-disengagement cone is used to squeeze the tensioning ring against the anti-disengagement notch. A locking block is threadedly connected to the anti-disengagement rod. The locking block is used to press against the top plate.
[0010] By adopting the above technical solution, the worker first drills an anti-disengagement notch on the top plate, then inserts the anti-disengagement rod into the anti-disengagement notch, and then turns the locking block. The locking block presses against the top plate, and the anti-disengagement rod slides in the direction away from the top plate. The anti-disengagement rod drives the anti-disengagement cone, and the anti-disengagement cone squeezes the tensioning ring against the inner side wall of the anti-disengagement notch, so that the anti-disengagement rod cannot be disengaged from the top plate, and the anti-disengagement rod outside the top plate will be embedded in the concrete, thereby fixing the top plate on the concrete.
[0011] Optionally, an anchor pipe is arranged on the anti-disengagement rod. A plurality of anchor rods are circumferentially arranged on the anchor pipe. The anchor rods are embedded in the concrete.
[0012] By adopting the above technical solution, the surface contact area between the anti-disengagement rod and the concrete is increased through the anchor pipe and the anchor rods, reducing the possibility of the top plate detaching from the concrete, further improving the fixing effect of the top plate fixed on the concrete, and at the same time, the top plate will not creak like a traditional wooden structure when stepped on.
[0013] Optionally, the tensioning component includes a pull rod arranged between the two top plates. Connecting cylinders are detachably arranged at both ends of the pull rod. A tensioning cylinder is threadedly connected to the connecting cylinder. A tensioning notch for inserting the tensioning cylinder is formed on the top plate. A disengagement prevention part is arranged between the tensioning cylinder and the tensioning notch.
[0014] By adopting the above technical solution, the worker inserts the joint cylinder into the joint groove, fixes the joint cylinder in the joint groove through the anti-detachment member, then installs the pull rod on the connecting cylinder of the joint cylinder, both ends of the pull rod are installed on the connecting cylinder, and then the worker rotates the pull rod. The pull rod drives the connecting cylinder to rotate. Since the joint cylinder is fixed, the rotation of the pull rod makes the joint cylinders at both ends approach each other, so that the two top plates approach each other, which is beneficial to reducing the degree of depression of the middle position of the top plate under the action of its own weight.
[0015] Optionally, the anti-detachment member includes an anti-detachment thorn rotatably arranged on the joint cylinder, an anti-detachment groove for the anti-detachment thorn to rotate is formed on the joint cylinder, an anti-detachment compression spring is propped between the anti-detachment thorn and the anti-detachment groove, and a joint block is threadedly connected to the joint cylinder. The joint block is used to press against the top plate.
[0016] By adopting the above technical solution, the worker inserts the joint cylinder into the anti-detachment groove, the anti-detachment compression spring is compressed by force, the worker turns the joint block, the joint block presses against the top plate, the joint cylinder slides in the direction away from the top plate, and the anti-detachment thorn props against the inner wall of the anti-detachment groove under the elastic force of the anti-detachment compression spring. As the joint cylinder slides, the anti-detachment thorn continuously pierces into the inner wall of the anti-detachment groove, thereby reducing the possibility of the joint cylinder detaching from the top plate.
[0017] Optionally, a sleeve is coaxially arranged on the pull rod, and a plurality of dial rods are circumferentially arranged on the sleeve.
[0018] By adopting the above technical solution, the worker rotates the dial rod, and the dial rod drives the pull rod to rotate through the sleeve, which is convenient for the worker to be more labor-saving. At the same time, the dial rod is embedded in the concrete, which is beneficial to improving the solidification structure strength of the concrete.
[0019] Optionally, a water-proof membrane is arranged on the top plate, and the water-proof membrane is used to separate the top plate from the concrete.
[0020] By adopting the above technical solution, it reduces the absorption of water in the concrete by the top plate during concrete pouring, which is beneficial to reducing the possibility of the top plate expanding after absorbing water and resulting in a decrease in the structural strength of the top plate.
[0021] Optionally, a protective film is arranged on the side of the top plate facing away from the anti-detachment rod.
[0022] By adopting the above technical solution, it reduces the possibility of damage to the bottom of the top plate, which is beneficial to improving the aesthetics of the surface structure of the top inside the building.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. Workers install the pallet between two top plates. The two top plates and the pallet form a casting mold for pouring a concrete beam. Then, the workers place the steel reinforcement cage on the pallet. After that, the workers use the tensioning component to pull the two top plates on both sides of the steel reinforcement cage. Then, anti - detachment parts are installed on the top plates and a steel mesh is laid. Finally, concrete is poured to form an integral concrete beam and floor slab. When the concrete solidifies, the top plates are fixed to the concrete, and the lower surface of the top plates becomes the inner top of the building. This operation does not require the removal of the top plates and does not require plastering the concrete beam and floor slab, shortening the construction time.
[0025] 2. Workers first drill anti - detachment notches on the top plates, then insert the anti - detachment rods into the anti - detachment notches. After that, the locking blocks are turned, and the locking blocks press against the top plates. The anti - detachment rods slide in the direction away from the top plates. The anti - detachment rods drive the anti - detachment cones, and the anti - detachment cones squeeze the tensioning ring pieces against the inner side walls of the anti - detachment notches, making the anti - detachment rods unable to detach from the top plates. The anti - detachment rods outside the top plates will be embedded in the concrete, thereby fixing the top plates to the concrete.
[0026] 3. Workers insert the tensioning cylinder into the tensioning groove and fix the tensioning cylinder in the tensioning groove through the anti - detachment part. Then, a pull rod is installed on the connecting cylinder of the tensioning cylinder, and both ends of the pull rod are installed on the connecting cylinder. Then, the workers rotate the pull rod, and the pull rod drives the connecting cylinder to rotate. Since the tensioning cylinder is fixed, the rotation of the pull rod makes the two tensioning cylinders at both ends of it approach each other, thereby making the two top plates approach each other, which is beneficial to reducing the degree of depression of the middle position of the top plates under their own weight. Description of the Drawings
[0027] Figure 1 is a schematic structural diagram of an embodiment of the present application.
[0028] Figure 2 is a schematic structural diagram of the positional relationship among the steel reinforcement cage, the pallet, and the steel mesh in an embodiment of the present application.
[0029] Figure 3 is a cross - sectional view of the positional relationship among the pull rod, the pallet, and the top plate in an embodiment of the present application.
[0030] Figure 4 is Figure 3 an enlarged view of part A in
[0031] Figure 5 is a schematic structural diagram of the positional relationship among the anti - detachment cone, the anti - detachment rod, and the anchor pipe in an embodiment of the present application.
[0032] Description of reference numerals: 1, top plate; 2, steel reinforcement cage; 3, supporting plate; 4, steel mesh; 5, concrete; 6, anti - detachment member; 61, anti - detachment rod; 62, anti - detachment notch; 63, anti - detachment cone; 64, tensioning ring piece; 65, locking block; 7, tensioning component; 71, tensioning rod; 72, connecting cylinder; 73, tensioning cylinder; 74, tensioning groove; 75, anti - slipping member; 751, anti - slipping thorn; 752, anti - slipping groove; 753, anti - slipping compression spring; 754, tensioning block; 8, anchor pipe; 9, anchor rod; 10, sleeve; 11, lever; 12, water - proof membrane; 13, protective film; 14, wooden board unit; 15, card slot; 16, deformation piece; 17, screw rod. Detailed implementation manners
[0033] The following further elaborates on this application in conjunction with Figures 1-5 drawings.
[0034] The embodiment of this application discloses a combined joint of wooden board and wooden beam without formwork and concrete.
[0035] Referring to Figure 1 , a combined joint of wooden board and wooden beam without formwork includes a plurality of top plates 1. The top plates 1 are formed by stacking and splicing a plurality of wooden board units 14 in sequence. A steel reinforcement cage 2 is arranged between two adjacent top plates 1. A supporting plate 3 is arranged at the bottom of the steel reinforcement cage 2. The two ends of the supporting plate 3 are respectively connected to the bottoms of the top plates 1 on both sides of the steel reinforcement cage 2. Card slots 15 for installing the supporting plate 3 are opened at the bottom of the top plate 1.
[0036] Referring to Figure 1 , Figure 2 and Figure 3 , a steel mesh 4 is arranged on the top plate 1, concrete 5 is poured on the top plate 1, water - proof membranes 12 are bonded on both the top plate 1 and the supporting plate 3. The water - proof membranes 12 are used to separate the top plate 1 and the supporting plate 3 from the concrete 5. The steel reinforcement cage 2 and the steel mesh 4 are both embedded in the concrete 5. A protective film 13 is bonded to one side of the bottom of the top plate 1.
[0037] Referring to Figure 2 , Figure 3 and Figure 4 , an anti - detachment member 6 is arranged between the top plate 1 and the concrete 5. The anti - detachment member 6 is used to fix the top plate 1 on the concrete 5. A tensioning component 7 is arranged between two adjacent top plates 1. The tensioning component 7 is used to tighten two adjacent top plates 1.
[0038] Workers first install the rear support frame, then install the supporting plate 3 and the top plate 1 on the support frame, bond the water - proof membranes 12 on the supporting plate 3 and the top plate 1, then place the steel reinforcement cage 2 on the supporting plate 3, then use the tensioning component 7 to pull the two top plates 1 on both sides of the steel reinforcement cage 2, then install the anti - detachment member 6 on the top of the top plate 1 and lay the steel mesh 4, and finally pour the concrete 5 to form an integral concrete 5 beam and floor slab.
[0039] Refer to Figure 2 、 Figure 3 and Figure 5 , the anti - detachment part 6 includes an anti - detachment rod 61. An anti - detachment groove 62 for inserting the anti - detachment rod 61 is formed on the top plate 1. An anti - detachment cone 63 is coaxially welded on the anti - detachment rod 61. The diameter of the anti - detachment cone 63 gradually increases along the direction from the anti - detachment rod 61 to the anti - detachment cone 63. A tensioning ring piece 64 is slidably sleeved on the anti - detachment rod 61.
[0040] Refer to Figure 2 、 Figure 3 and Figure 5 , a plurality of deformation pieces 16 are integrally formed on the tensioning ring piece 64. The anti - detachment cone 63 is used to squeeze the deformation pieces 16 against the inner side wall of the anti - detachment groove 62. A locking block 65 is threadedly connected to the anti - detachment rod 61. The locking block 65 is used to press against the top plate 1. An anchor pipe 8 is threadedly connected to the anti - detachment rod 61. A plurality of anchor rods 9 are circumferentially and evenly welded on the anchor pipe 8. The anchor rods 9 are embedded in the concrete 5.
[0041] The worker inserts the anti - detachment rod 61 together with the tensioning ring piece 64 into the anti - detachment groove 62, then turns the locking block 65. The locking block 65 presses against the top plate 1. The anti - detachment rod 61 slides in the direction away from the top plate 1. The anti - detachment rod 61 drives the anti - detachment cone 63. The anti - detachment cone 63 squeezes the deformation pieces 16 against the inner side wall of the anti - detachment groove 62. Then the worker bolts and fixes the anchor pipe 8 together with the anchor rods 9 on the anti - detachment rod 61.
[0042] Refer to Figure 2 、 Figure 3 and Figure 4 , the tensioning component 7 includes a pull rod 71 arranged between two top plates 1. A sleeve 10 is coaxially welded on the pull rod 71. A plurality of shift rods 11 are circumferentially and evenly welded on the sleeve 10. Connecting cylinders 72 are bolted to both ends of the pull rod 71. A screw rod 17 is coaxially welded to the end of the connecting cylinder 72 facing away from the pull rod 71. A tensioning cylinder 73 is threadedly connected to the screw rod 17. A tensioning groove 74 for inserting the tensioning cylinder 73 is formed on the top plate 1. An anti - detachment part 75 is arranged between the tensioning cylinder 73 and the tensioning groove 74.
[0043] Refer to Figure 2 、 Figure 3 and Figure 4 , the anti - detachment part 75 includes an anti - detachment thorn 751 rotatably connected to the tensioning cylinder 73. A rotation prevention groove 752 for the anti - detachment thorn 751 to rotate is formed on the tensioning cylinder 73. An anti - detachment compression spring 753 is propped between the anti - detachment thorn 751 and the rotation prevention groove 752. A tensioning block 754 is threadedly connected to the tensioning cylinder 73. The tensioning block 754 is used to press against the top plate 1.
[0044] The worker inserts the telescopic cylinder 73 into the telescopic groove 74. The anti - detachment compression spring 753 is compressed under force. The anti - detachment thorn 751 propping against the inner side wall of the anti - detachment groove 752 under the elastic force of the anti - detachment compression spring 753. The worker turns the telescopic block 754, and the telescopic block 754 presses tightly against the top plate 1. The reaction force of the telescopic block 754 causes the telescopic cylinder 73 to slide in the direction away from the top plate 1. As the telescopic cylinder 73 slides, the anti - detachment thorn 751 continuously pierces into the inner side wall of the anti - detachment groove 752.
[0045] Then, the pull rod 71 is installed on the connecting cylinder 72 of the telescopic cylinder 73. Both ends of the pull rod 71 are equipped with connecting cylinders 72. Then the worker rotates the pull rod 71, and the pull rod 71 drives the connecting cylinder 72 to rotate. The connecting cylinder 72 drives the screw rod 17 to rotate. Since the telescopic cylinder 73 is fixed, the rotation of the screw rod 17 causes the telescopic cylinders 73 at both ends to approach each other, thereby pulling and approaching the two top plates 1 on both sides of the pull rod 71.
[0046] The implementation principle of the concrete - combined joint of wooden board and wooden beam without formwork in the embodiment of this application is as follows: The worker first installs the rear support frame, then installs the support plate 3 and the top plate 1 on the support frame, and bonds the water - proof film 12 on the support plate 3 and the top plate 1. Then the steel reinforcement cage 2 is placed on the support plate 3. Then, the two top plates 1 on both sides of the steel reinforcement cage 2 are pulled by the telescopic assembly 7. Then, the anti - detachment part 6 is installed on the top of the top plate 1 and the steel reinforcement mesh 4 is laid. Finally, the concrete 5 is poured to form an integral concrete 5 beam and floor slab.
[0047] The worker inserts the anti - detachment rod 61 together with the tensioning ring piece 64 into the anti - detachment slot opening 62, then turns the locking block 65, and the locking block 65 presses tightly against the top plate 1. The anti - detachment rod 61 slides in the direction away from the top plate 1. The anti - detachment rod 61 drives the anti - detachment cone 63, and the anti - detachment cone 63 presses the deformation piece 16 against the inner side wall of the anti - detachment slot opening 62. Then the worker bolts and fixes the anchor pipe 8 together with the anchor rod 9 on the anti - detachment rod 61.
[0048] The worker inserts the telescopic cylinder 73 into the telescopic groove 74. The anti - detachment compression spring 753 is compressed under force. The anti - detachment thorn 751 propping against the inner side wall of the anti - detachment groove 752 under the elastic force of the anti - detachment compression spring 753. The worker turns the telescopic block 754, and the telescopic block 754 presses tightly against the top plate 1. The reaction force of the telescopic block 754 causes the telescopic cylinder 73 to slide in the direction away from the top plate 1. As the telescopic cylinder 73 slides, the anti - detachment thorn 751 continuously pierces into the inner side wall of the anti - detachment groove 752.
[0049] Then, the pull rod 71 is installed on the connecting cylinder 72 of the telescopic cylinder 73. Both ends of the pull rod 71 are equipped with connecting cylinders 72. Then the worker rotates the pull rod 71, and the pull rod 71 drives the connecting cylinder 72 to rotate. The connecting cylinder 72 drives the screw rod 17 to rotate. Since the telescopic cylinder 73 is fixed, the rotation of the screw rod 17 causes the telescopic cylinders 73 at both ends to approach each other, thereby pulling and approaching the two top plates 1 on both sides of the pull rod 71.
[0050] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.
Claims
1. A template-free wood board beam and concrete composite node, characterized by: The invention comprises a plurality of top plates (1), a steel cage (2) is arranged between two adjacent top plates (1), a support plate (3) is arranged at the bottom of the steel cage (2), two ends of the support plate (3) are respectively connected to the top plates (1) on both sides of the steel cage (2), a steel mesh (4) is arranged on the top plate (1), concrete (5) is poured on the top plate (1), the steel cage (2) and the steel mesh (4) are both pre-embedded in the concrete (5), an anti-slipping piece (6) is arranged between the top plate (1) and the concrete (5), the anti-slipping piece (6) is used to fix the top plate (1) on the concrete (5), and a pull joint assembly (7) is arranged between two adjacent top plates (1), the pull joint assembly (7) is used to tighten the two adjacent top plates (1).
2. A formwork-free wood board beam and concrete composite node according to claim 1, characterized in that: The anti-slip component (6) comprises an anti-slip rod (61), an anti-slip groove (62) for inserting the anti-slip rod (61) is provided on the top plate (1), an anti-slip cone (63) is coaxially arranged on the anti-slip rod (61), the diameter of the anti-slip cone (63) gradually increases along the direction from the anti-slip rod (61) to the anti-slip cone (63), a tensioning ring sheet (64) is slidably sleeved on the anti-slip rod (61), the anti-slip cone (63) is used to squeeze the tensioning ring sheet (64) onto the anti-slip groove (62), and a locking block (65) is threadedly connected to the anti-slip rod (61), and the locking block (65) is used to press the top plate (1) tightly.
3. A formwork-free wood board beam and concrete composite node according to claim 2, characterized in that: The anti-slip rod (61) is provided with an anchor pipe (8), and a plurality of anchor rods (9) are circumferentially provided on the anchor pipe (8), and the anchor rods (9) are pre-buried in the concrete (5).
4. The formwork-free wood board and beam and concrete composite node according to claim 1, characterized in that: The tie rod assembly (7) comprises a tie rod (71) arranged between the two top plates (1), both ends of the tie rod (71) are detachably provided with connecting tubes (72), a tie rod (73) is threadedly connected to the connecting tube (72), a tie rod groove (74) for inserting the tie rod (73) is provided on the top plate (1), and a stopper (75) is provided between the tie rod (73) and the tie rod groove (74).
5. The formwork-free wood board and beam and concrete composite node according to claim 4, characterized in that: The anti-slip component (75) comprises an anti-slip spike (751) rotatably arranged on the joint cylinder (73); the joint cylinder (73) is provided with an anti-slip groove (752) for the anti-slip spike (751) to rotate; an anti-slip compression spring (753) is supported between the anti-slip spike (751) and the anti-slip groove (752); a joint block (754) is threadedly connected to the joint cylinder (73); and the joint block (754) is used to press against the top plate (1).
6. The formwork-free wood board, wood beam and concrete composite node according to claim 4, characterized in that: A sleeve (10) is coaxially arranged on the pull rod (71), and a plurality of shifting rods (11) are circumferentially arranged on the sleeve (10).
7. The formwork-free wood board and beam and concrete composite node according to claim 1, characterized in that: A water-isolating membrane (12) is provided on the top plate (1), and the water-isolating membrane (12) is used to separate the top plate (1) from the concrete (5).
8. The formwork-free wood board and beam and concrete composite node according to claim 2, characterized in that: A protective film (13) is provided on the side of the top plate (1) facing away from the anti-slip rod (61).