Construction joint formwork structure and construction joint construction method

Abstract

This invention provides a construction joint template structure and a construction joint construction method. The construction joint template structure is designed to include: a timber back rib frame and several channel steel back arch frames. All channel steel back arch frames are installed vertically on one side of the timber back rib frame at uniform intervals. The timber back rib frame serves as secondary ribs, and the channel steel back arch frames serve as primary ribs, forming the construction joint template system. This system has sufficient strength, eliminating the need for additional reinforcing bars and steel mesh to intercept concrete during construction joint construction, significantly reducing construction costs. Furthermore, the construction joint template structure can be customized to different sizes and specifications according to different base plate thicknesses to meet the rapid assembly requirements of different working conditions, offering flexibility. Its assembly operation is simple, easy to install and disassemble, and improves construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of construction technology using the skip-construction method, and particularly to a construction joint template structure and a construction joint construction method. Background Technology

[0002] In traditional building construction systems, when constructing construction joints in the foundation slab, horizontal and vertical reinforcing bars need to be added above and below the joint to support the concrete in the form of a retaining mesh. The reinforcing bars are the same size as the main reinforcing bars in the foundation slab, with additional supporting bars added on the outer side for lateral support. In summary, the construction process for foundation slab construction joints is relatively complex. For large-area joints, the binding of reinforcing bars, the installation of the retaining mesh, and welding all require significant manpower and time. Furthermore, the reinforcing bars and retaining mesh are not recyclable after use, increasing construction costs.

[0003] In view of the problems of complicated construction process and high construction cost in the construction joint of the base plate in the existing technology, those skilled in the art have been looking for solutions. Summary of the Invention

[0004] The purpose of this invention is to provide a construction joint template structure and a construction joint construction method to solve the problems of complicated construction process and high construction cost in the construction joint construction of the base plate in the prior art.

[0005] To solve the above technical problems, the present invention provides a construction joint template structure, which includes: a timber back rib frame and several channel steel back arch frames, all of which are vertically installed on one side of the timber back rib frame at uniform intervals.

[0006] Each channel steel back arch frame includes: a double-segment channel steel, a steel wire rope, and a steel reinforcement corner support assembly. The steel reinforcement corner support assembly includes steel reinforcement corners of several specifications. All steel reinforcement corners are welded to the double-segment channel steel at even intervals. The steel wire rope passes through the limiting holes on all steel reinforcement corners, and both ends of the steel wire rope are connected to the double-segment channel steel to form the channel steel back arch frame together with the double-segment channel steel.

[0007] Optionally, in the construction joint template structure, each channel steel back arch frame further includes a turnbuckle, which is set on the wire rope to adjust the tension of the wire rope.

[0008] Optionally, the construction joint template structure further includes: several limiting angle steels, with each pair of limiting angle steels used in conjunction with a channel steel back arch frame to restrict and fix the installation position of the channel steel back arch frame.

[0009] Optionally, the construction joint template structure further includes: several temporary fixing screws, which are used in conjunction with the timber backing frame to temporarily fix the position of the timber backing frame.

[0010] Optionally, in the construction joint template structure, the double-channel steel includes two #8 channel steels.

[0011] Optionally, in the construction joint template structure, the diameter of the steel wire rope is 9mm.

[0012] The present invention also provides a construction joint construction method, the construction joint construction method comprising:

[0013] Based on the thickness of the base plate, determine the selection of the construction joint formwork structure as described above;

[0014] After the reinforcement bars of the base slab are tied, quick-closing mesh and wire mesh are installed on the structural surface of the base slab to close the joints.

[0015] The wooden back rib frame in the construction joint template structure is fixed to the structural surface of the base plate, and the water-stop steel plate is fixed on the wooden back rib frame.

[0016] All the channel steel back arch frames in the construction joint formwork structure are fixedly installed on the main reinforcement of the base plate;

[0017] Adjust the wire rope of each channel steel back arch frame so that the corresponding double channel steel generates a predetermined stress;

[0018] After the pouring is completed and the curing reaches the predetermined strength, the construction joint formwork structure is removed to complete the construction of the base slab construction joint.

[0019] Optionally, in the construction joint construction method, removing the construction joint formwork structure includes:

[0020] Loosen the wire ropes of each channel steel back arch frame in sequence to release the predetermined stress they generate;

[0021] Remove all channel steel back arch frames and timber back rib frames.

[0022] Optionally, in the construction joint construction method, fixing the timber back rib frame in the construction joint template structure to the structural surface of the base plate includes:

[0023] The timber back rib frame is fixed to the structural surface of the base plate using several temporary fixing screws.

[0024] Optionally, in the construction joint construction method, fixing all the channel steel back arch frames in the construction joint template structure to the main reinforcement of the base plate includes:

[0025] Each end of the channel steel back arch frame is welded to the main reinforcement of the base plate based on a limiting angle steel.

[0026] In the construction joint template structure and construction joint construction method provided by this invention, the construction joint template structure is designed to include: a timber back rib frame and several channel steel back arch frames. All channel steel back arch frames are installed vertically on one side of the timber back rib frame at uniform intervals. The timber back rib frame serves as the secondary rib, and the channel steel back arch frames serve as the main ribs to form the construction joint template system. This system has sufficient strength requirements, allowing the construction joint construction to eliminate the need for additional reinforcing bars and steel mesh to intercept concrete, greatly reducing construction costs. In addition, the construction joint template structure can be customized to different sizes and specifications according to different base plate thicknesses to meet the rapid assembly requirements of different working conditions, providing flexibility. Its assembly operation is simple, easy to install and disassemble, and improves construction efficiency. Attached Figure Description

[0027] The above and other objects, features and advantages of this disclosure will become more apparent from the accompanying drawings, in which like reference numerals generally denote like parts.

[0028] Figure 1 This is a schematic diagram of a construction joint template structure in one embodiment of the present invention;

[0029] Figure 2 This is an elevation view of the channel steel back arch frame in one embodiment of the present invention;

[0030] Figure 3 yes Figure 2 Cross-sectional view along direction 1-1;

[0031] Figure 4 This is a side view of the channel steel back arch frame in one embodiment of the present invention;

[0032] Figure 5 This is a diagram of the stress system of the construction joint in the base plate according to one embodiment of the present invention;

[0033] Figure 6 This is a flowchart of a construction joint construction method in one embodiment of the present invention.

[0034] In the picture:

[0035] 1- Timber back rib frame;

[0036] 2-Channel steel back arch frame; 21-Double-section channel steel; 22-Steel wire rope; 23-Reinforcing bar corner support; 24-Turn bolt;

[0037] 3-Linkage;

[0038] 4-Limiting angle steel;

[0039] 5- Temporary fixing screw;

[0040] 6-Base slab; 61-Main reinforcement;

[0041] 7-Easy-to-close wire mesh and steel wire mesh panels;

[0042] 8-Waterstop steel plate. Detailed Implementation

[0043] The construction joint template structure and construction joint construction method proposed in this invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this invention.

[0044] Please refer to Figures 1 to 4 .like Figures 1-4 As shown, the construction joint formwork structure includes: a timber backing frame 1 and several channel steel back arch frames 2, all of which are spaced evenly (corresponding to...). Figure 1 The middle L) is vertically installed on one side of the timber back beam frame 1; wherein, each channel steel back arch frame 2 includes: a double-splitter channel steel 21, a steel wire rope 22, and a steel reinforcement corner bracket 23 assembly. The steel reinforcement corner bracket 23 assembly includes steel reinforcement corner brackets of several specifications. All steel reinforcement corner brackets 23 are welded to the double-splitter channel steel 21 at even intervals. The steel wire rope 22 passes through the limiting holes on all steel reinforcement corner brackets 23, and both ends of the steel wire rope 22 are connected to the double-splitter channel steel 21 to form the channel steel back arch frame 2 together with the double-splitter channel steel 21. Specifically, as shown in Figure 1 As shown, all the channel steel back arch frames 2 are installed on one side of the timber back beam frame 1 based on the connecting rod 3; the largest steel bar support 23 in the steel bar support 23 assembly is set in the middle of the back arch, and the other specifications are symmetrically distributed relative to the largest steel bar support 23.

[0045] like Figure 4 As shown, each channel steel back arch frame 2 also includes a turnbuckle 24, which is set on the wire rope 22 to adjust the tension of the wire rope 22, thereby providing stress to the double channel steel 21. The timber back ribs in the timber back rib frame 1 adjacent to the double channel steel 21 are slightly arched after being stressed, which greatly increases their load-bearing capacity.

[0046] like Figure 3 As shown, the double-channel steel 21 in this embodiment includes two No. 8 channel steels, which are connected back-to-back by a steel plate.

[0047] Please refer to Figure 1 and Figure 5The construction joint template structure further includes: several limiting angle steels 4 and several temporary fixing screws 5. Every two limiting angle steels 4 are used in conjunction with a channel steel back arch frame 2 to limit and fix the installation position of the channel steel back arch frame 2 (as shown in 5, in this embodiment, the construction joint of the base plate 6 is being constructed, and at this time the installation position of the channel steel back arch frame 2 is the main reinforcement 61 of the base plate 6); several temporary fixing screws 5 are used in conjunction with the timber back rib frame 1 to temporarily fix the position of the timber back rib frame 1.

[0048] Preferably, the diameter of the wire rope 22 in this embodiment is 9mm. The specific specifications of the wire rope 22 can be selected according to actual needs. This is only an explanation of a preferred solution.

[0049] In summary, the construction joint formwork system, consisting of a timber back rib frame as secondary ribs and several channel steel back arch frames as primary ribs, possesses sufficient strength to eliminate the need for additional reinforcing bars and steel mesh to intercept concrete during construction joint construction, significantly reducing construction costs. Furthermore, the construction joint formwork structure can be customized to different sizes and specifications based on varying base plate thicknesses to meet the rapid assembly requirements of different working conditions, offering flexibility. Its assembly operation is simple, easy to install and disassemble, and improves construction efficiency.

[0050] It is understood that the above examples are merely examples listed to better understand the technical solutions of the embodiments of this application, and are not intended to be the only limitation on the embodiments.

[0051] This embodiment also provides a method for constructing construction joints. See below for reference. Figures 1 to 6 This embodiment describes the construction method for construction joints in detail.

[0052] First, proceed to step S1 to determine the selection of the construction joint formwork structure based on the thickness of the base plate 6. That is, based on different base plate 6 thicknesses, custom-made construction joint formwork structures of different sizes and specifications are manufactured to meet the rapid assembly requirements of different working conditions.

[0053] Next, step S2 is performed. After the reinforcing bars of the base plate 6 are tied, quick-closing mesh and wire mesh 7 are installed on the structural surface of the base plate 6 to close the joints.

[0054] Next, step S3 is executed, in which the timber back rib frame 1 in the construction joint template structure is fixed to the structural surface of the base plate 6, and the water-stop steel plate 8 is fixed to the timber back rib frame, with the opening of the water-stop steel plate 8 facing the water-facing side of the structure; specifically, several temporary fixing screws 5 are used to fix the timber back rib frame to the structural surface of the base plate 6.

[0055] Next, step S4 is performed to fix all the channel steel back arch frames 2 in the construction joint template structure onto the main reinforcement 61 of the base plate 6. Specifically, each end of the channel steel back arch frame is welded to the main reinforcement 61 of the base plate 6 based on a limiting angle steel 4 (in other words, the medium structure for fixing the channel steel back arch frame 2 to the base plate 6 is the limiting angle steel 4). In this embodiment, the weld length is greater than or equal to 30mm.

[0056] Next, step S5 is executed to adjust the wire rope 22 of each channel steel back arch frame 2 so that the corresponding double channel steel 21 generates a predetermined stress.

[0057] Next, step S6 is executed to carry out the pouring construction. After the pouring construction is completed and the curing reaches the predetermined strength, the construction joint template structure is removed to complete the construction of the construction joint of the base plate 6. The removal of the construction joint template structure includes: sequentially loosening the wire ropes 22 of each channel steel back arch frame 2 to release the predetermined stress generated therefrom; and removing all channel steel back arch frames 2 and timber back rib frames 1.

[0058] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A construction joint formwork structure characterised in that, The construction joint formwork structure comprises a wooden back frame and a plurality of channel steel back arch frames, and all the channel steel back arch frames are vertically installed on one side of the wooden back frame at uniform intervals. Each channel steel back arch frame comprises a double-spliced channel steel, a steel wire rope and a steel bar support corner assembly, the steel bar support corner assembly comprises a plurality of steel bar support corners which are welded on the double-spliced channel steel at uniform intervals, the steel wire rope passes through the limiting holes on all the steel bar support corners, and both ends of the steel wire rope are connected with the double-spliced channel steel to jointly form the channel steel back arch frame. Each channel steel back arch frame further comprises a flower basket bolt arranged on the steel wire rope to adjust the tightness of the steel wire rope.

2. The construction joint formwork structure of claim 1, wherein, The construction joint formwork structure further comprises a plurality of limiting angle steels, each two limiting angle steels are used in combination with a channel steel back arch frame to limit the position of the channel steel back arch frame.

3. The construction joint formwork structure of claim 1, wherein The construction joint formwork structure further comprises a plurality of temporary fixing screw rods which are used in combination with the wooden back frame to temporarily fix the position of the wooden back frame. The double-spliced channel steel comprises two 8# channel steels.

4. The construction joint formwork structure of claim 1, wherein The diameter of the steel wire rope is 9 mm. The construction joint formwork structure comprises a wooden back frame and a plurality of channel steel back arch frames, and all the channel steel back arch frames are vertically installed on one side of the wooden back frame at uniform intervals.

5. The construction joint formwork structure of any one of claims 1 to 4, wherein, After the reinforcement of the bottom plate is bound, the quick closing net and the steel mesh sheet are constructed on the structure surface of the bottom plate to close the structure surface.

6. The construction joint formwork structure of any one of claims 1 to 4, wherein, The wooden back frame of the construction joint formwork structure is fixed on the structure surface of the bottom plate, and the water stop steel plate is fixed on the wooden back frame.

7. A method of construction joint construction, characterized by All the channel steel back arch frames of the construction joint formwork structure are fixed and installed on the main reinforcement of the bottom plate. The steel wire rope of each channel steel back arch frame is adjusted to generate a predetermined stress on the corresponding double-spliced channel steel. After the pouring construction is completed and the curing reaches a predetermined strength, the construction joint formwork structure is removed to complete the construction of the construction joint of the bottom plate. The removal of the construction joint formwork structure comprises: The steel wire rope of each channel steel back arch frame is loosened in sequence to release the predetermined stress generated by the steel wire rope. All the channel steel back arch frames and the wooden back frame are removed. The wooden back frame of the construction joint formwork structure is fixed on the structure surface of the bottom plate by using a plurality of temporary fixing screw rods.

8. The construction joint construction method according to claim 7, characterized in that, Each channel steel back arch frame is welded at both ends to the main reinforcement of the bottom plate based on a limiting angle steel. ​ ​ 9. The construction joint construction method according to claim 7, wherein ​ ​ 10. The construction joint construction method according to any one of claims 7 to 9, characterized in that, ​ ​

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