Construction method of sectional post-pouring belt side mold

Abstract

The application relates to a construction method of a segmented post-poured belt side form, which comprises the following steps: providing a plate bottom form plate, arranging the plate bottom form plate at the plate bottom position of adjacent to-be-poured building plate bodies; arranging first side forms on the two sides of a post-poured belt reserved space respectively; arranging second side forms above the first side forms according to the arrangement positions of the first side forms, and binding lower layer plate bars of the to-be-poured building plate bodies between the first side forms and the second side forms; arranging third side forms above the second side forms, and binding upper layer plate bars between the second side forms and the third side forms; arranging plate top support plates between the two third side forms to form a post-poured belt reserved space. The upper layer plate bars are passed through the assembly gap between the first side forms and the second side forms, and the lower layer plate bars are passed through the assembly gap between the second side forms and the third side forms, so that the perforation of the form plate and the complex process of perforating the plate bars are avoided, the work efficiency is improved, the form plate is convenient to disassemble and can be recycled.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and specifically to a construction method for a segmented post-cast strip side formwork. Background Technology

[0002] A post-cast strip is a concrete strip left at a corresponding position in the foundation slab during building construction to prevent harmful cracks that may occur in cast-in-place reinforced concrete structures due to uneven shrinkage or settlement, in accordance with design or construction specifications.

[0003] Traditional post-cast strip side formwork uses wooden formwork. Wooden formwork cannot be reused, is difficult to erect, and involves significant construction challenges and costs. Furthermore, after concrete pouring, the edges and corners are not straight, resulting in poor aesthetic quality. Current technology involves positioning and drilling holes in the wooden formwork according to the on-site steel mesh layout, and reinforcing steel bars are installed through these holes during the steel bar tying process to reinforce the formwork.

[0004] However, it has the following drawbacks: (1) The template has a large number of openings, and because the steel bars are connected during the template dismantling process, the template can only be forcibly removed, and the template cannot be reused later; (2) The spacing of the reinforcing bars is constrained by the actual site conditions. The spacing of the reinforcing bars cannot be zero, which leads to repeated adjustments during the process of perforating the reinforcing bar formwork, making construction difficult. (3) The size of the opening in the template may be slightly larger than the diameter of the reinforcing bar, and the gap between the reinforcing bar and the template opening may cause grout leakage. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects of the prior art and provide a construction method for a segmented post-pouring strip side formwork, which solves the problems of large actual construction errors, construction difficulties, grout leakage caused by gaps between the reinforcing bars and the formwork holes, and inability to reuse the formwork after it is forcibly removed.

[0006] The technical solution to achieve the above objective is: a construction method for segmented post-cast strip side formwork, comprising the following steps: providing a slab bottom formwork, setting the slab bottom formwork at the bottom position of an adjacent building slab to be cast, the slab bottom formwork also correspondingly supporting the bottom of the reserved space for the post-cast strip; setting first side formwork on both sides of the reserved space for the post-cast strip, and setting the two first side formworks opposite to each other on the slab bottom formwork; setting second side formwork above the two first side formworks according to the setting position of the first side formworks, and binding the lower layer of the building slab reinforcement to be cast between the first side formworks and the second side formworks; setting third side formwork above the two second side formworks, and binding the upper layer of the building slab reinforcement to be cast between the second side formworks and the third side formworks; setting a slab top support plate between the two third side formworks to form the reserved space for the post-cast strip.

[0007] In the construction method of the segmented post-pouring strip side formwork of the present invention, the side formwork is divided into three segments, and the first side formwork, the second side formwork and the third side formwork are constructed in sequence. The upper slab reinforcement can pass through the assembly gap between the first side formwork and the second side formwork, and the lower slab reinforcement can pass through the assembly gap between the second side formwork and the third side formwork. This avoids the complicated process of perforating the formwork and perforating the slab reinforcement, improves work efficiency, and the segmented side formwork makes it easy to disassemble and reuse multiple times, thus reducing costs.

[0008] A further improvement of the construction method of the segmented post-pouring strip side formwork of the present invention is that, according to the setting position of the first side formwork, the second side formwork is respectively set above the two first side formworks, and the lower layer slab reinforcement of the building slab to be poured is tied between the first side formwork and the second side formwork, which includes: setting the second side formwork between the upper layer slab reinforcement and the lower layer slab reinforcement.

[0009] A further improvement of the construction method of the segmented post-pouring strip side formwork of the present invention is that, according to the setting position of the first side formwork, the second side formwork is respectively set above the two first side formworks, and the lower layer slab reinforcement of the building slab to be poured is tied between the first side formwork and the second side formwork, which includes: setting the height of the second side formwork according to the spacing between the upper layer slab reinforcement and the lower layer slab reinforcement.

[0010] A further improvement of the construction method of the segmented post-pouring strip side formwork of the present invention is that, according to the setting position of the first side formwork, the second side formwork is respectively set above the two first side formworks, and the lower layer reinforcement of the building slab to be poured is tied between the first side formwork and the second side formwork, which includes setting a support frame between the second side formwork and the bottom formwork of the slab.

[0011] A further improvement of the construction method of the segmented post-pouring strip side formwork of the present invention is that, before setting the second side formwork above the two first side formworks according to the setting position of the first side formwork, and binding the lower layer reinforcement of the building slab to be poured between the first side formwork and the second side formwork, the method includes: setting a first partition layer at the upper end of the first side formwork.

[0012] A further improvement of the construction method of the segmented post-pouring strip side formwork of the present invention is that, according to the setting position of the first side formwork, a second side formwork is respectively set above the two first side formworks, and the lower layer slab reinforcement of the building slab to be poured is tied between the first side formwork and the second side formwork, including: when tying the lower layer slab reinforcement, the vertical slab reinforcement in the lower layer slab reinforcement is passed through the first partition.

[0013] A further improvement of the construction method of the segmented post-pouring strip side formwork of the present invention is that, before setting a third side formwork above the two second side formworks respectively, and binding the upper layer reinforcement of the building slab to be poured between the second side formwork and the third side formwork, the method includes: setting a second partition at the upper end of the second side formwork.

[0014] A further improvement of the construction method of the segmented post-pouring strip side formwork of the present invention is that the step of setting a third side formwork above the two second side formworks respectively, and binding the upper layer slab reinforcement of the building slab to be poured between the second side formwork and the third side formwork includes: when binding the upper layer slab reinforcement, passing the vertical slab reinforcement in the upper layer slab reinforcement through the second partition.

[0015] A further improvement of the construction method of the segmented post-pouring strip side formwork of the present invention is that it further includes: placing the first side formwork, the second side formwork and the third side formwork, which are arranged vertically, on the same plane.

[0016] A further improvement of the construction method of the segmented post-pouring strip side formwork of the present invention is that it further includes: erecting an outer formwork on the bottom formwork of the slab, and pouring in the pouring space formed by the outer formwork and the post-pouring strip side formwork to form two adjacent building slab structures. Attached Figure Description

[0017] Figure 1 This is a schematic flowchart of a construction method for a segmented post-pouring strip side formwork according to the present invention.

[0018] Figure 2 This is a cross-sectional view of a segmented post-cast strip side mold according to the present invention.

[0019] Figure 3 This is a flowchart illustrating step S130 of the present invention.

[0020] Figure 4 This is another flowchart illustrating step S130 of the present invention.

[0021] Figure 5 This is another flowchart illustrating step S130 of the present invention.

[0022] Figure 6 This is a flowchart illustrating the process before step S130 of the present invention.

[0023] Figure 7 This is another flowchart illustrating step S130 of the present invention.

[0024] Figure 8 This is a flowchart illustrating the process before step S140 of the present invention.

[0025] Figure 9 This is a flowchart illustrating step S140 of the present invention.

[0026] Figure 10 This is another schematic diagram of the construction method of the segmented post-pouring strip side formwork of the present invention.

[0027] Figure 11 This is another schematic diagram of the construction method of the segmented post-pouring strip side formwork of the present invention.

[0028] In the diagram: 1. Bottom formwork; 2. First side formwork; 3. Second side formwork; 4. Third side formwork; 5. Top support plate; 6. Support frame; 7. First partition layer; 8. Second partition layer; 9. Upper slab reinforcement; 10. Lower slab reinforcement; 11. Vertical slab reinforcement; 12. Parallel slab reinforcement. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] See Figure 1 and Figure 2 , Figure 1 The diagram shows a construction method for a segmented post-pouring strip side formwork according to the present invention. Figure 2 This image shows a sectional view of a segmented post-cast strip side formwork according to the present invention. The present invention provides a construction method for a segmented post-cast strip side formwork, comprising the following steps: Step S110: Provide bottom formwork 1, set bottom formwork 1 at the bottom of the adjacent building slab to be poured, and bottom formwork 1 is also supported at the bottom of the reserved space of the post-pouring strip.

[0031] In this process, lines are laid out on the bottom formwork 1 to locate the building slab to be poured and the reserved space for the post-pouring strip. Then, step S120 is executed.

[0032] Step S120: Set the first side mold 2 on both sides of the reserved space of the post-pouring strip, and set the two first side molds 2 opposite to each other on the bottom plate template 1.

[0033] The first side mold 2 is made of wood, which is low in cost and reusable. According to the layout position on the bottom template 1, the two first side molds 2 are set opposite to each other on the upper end of the bottom template 1, and the first side molds 2 are set vertically on the upper end face of the bottom template 1. The dimensions of the two first side molds 2 are the same, and the specific values ​​are set according to the actual construction requirements. No specific restrictions are made here. Then, step S130 is executed.

[0034] Step S130: According to the setting position of the first side mold 2, set the second side mold 3 above the two first side molds 2 respectively, and tie the lower layer reinforcement 10 of the building slab to be poured between the first side mold 2 and the second side mold 3.

[0035] In this process, the second side mold 3 is set along the direction of the first side mold 2. The second side mold 3 is also made of wood, and its length and width correspond to those of the first side mold 2. No specific restrictions are imposed here. Generally, multiple layers of horizontal slab reinforcement mesh are set in the building slab, which are connected by parallel slab reinforcement 12 and vertical slab reinforcement 11 to form the bottom layer of slab reinforcement mesh. Then, step S140 is executed.

[0036] Step S140: Set up a third side mold 4 above the two second side molds 3 respectively, and tie the upper layer reinforcement 9 of the building slab to be poured between the second side mold 3 and the third side mold 4.

[0037] In this case, the upper slab reinforcement 9 and the lower slab reinforcement 10 are both horizontally arranged, and the upper slab reinforcement 9 and the lower slab reinforcement 10 are vertically corresponding and parallel to each other. Then, step S150 is executed.

[0038] Step S150: Set a top support plate 5 between the two third side molds 4 to form a reserved space for the post-cast strip.

[0039] Among them, plate top support plates 5 are set on the top of the two third side molds 4, and iron nails are used to connect and reinforce the two sides of the plate top support plates 5 to the top of the third side molds 4.

[0040] In this embodiment, the reserved space for the post-pouring strip is set between two building slabs to be poured, and the horizontal height of the top of the third side formwork 4 is set greater than the horizontal height of the upper surface of the building slab to be poured. Multiple equally spaced slab top support plates are set between the two third side formwork 4. The number of slab top support plates and the spacing between adjacent slab top support plates are set according to the actual construction requirements. The size of the slab top support plates is set according to the size of the reserved space for the post-pouring strip in actual construction, and no specific restrictions are imposed here.

[0041] See Figure 3 The diagram shows a flow chart of step S130 of the present invention. The present invention provides a construction method for a segmented post-cast strip side formwork, wherein step S130 includes: Execution step S131: Place the second side formwork 3 between the upper slab reinforcement 9 and the lower slab reinforcement 10.

[0042] The segmented design of the side formwork facilitates the installation of upper slab reinforcement 9 and lower slab reinforcement 10 from the upper and lower ends of the second side formwork 3, avoiding the impact of perforation on the side formwork on construction. The side formwork is easy to assemble and disassemble, improving construction efficiency and allowing for reuse, which can effectively reduce construction costs.

[0043] See Figure 4 This diagram illustrates another flow chart of step S130 of the present invention. The present invention provides a construction method for a segmented post-cast strip side formwork, wherein step S130 further includes: Execution step S132: Set the height of the second side formwork 3 according to the spacing between the upper slab reinforcement 9 and the lower slab reinforcement 10.

[0044] Specifically, the support position of the side formwork of the post-cast strip is determined according to the reserved position of the post-cast strip, and the height of the second side formwork 3 is set according to the spacing between the upper slab reinforcement 9 and the lower slab reinforcement 10.

[0045] In this embodiment, the height of the first side formwork 2 is the thickness of the reinforcement protective layer, which is set according to actual construction needs and is not specifically limited here.

[0046] See Figure 5 This diagram illustrates another flow chart of step S130 of the present invention. The present invention provides a construction method for a segmented post-cast strip side formwork, wherein step S130 further includes: Step S133: Set up a support frame 6 between the second side mold 3 and the bottom mold 1.

[0047] The support frame 6 is configured as a triangular support frame 6, diagonally braced between the second side formwork 3 and the bottom formwork 1, ensuring the stability of the structure. The support frame 6 is set within the reserved space of the post-pouring strip, making subsequent removal convenient.

[0048] In this embodiment, a support frame 6 is provided on one side of the two second side molds 3 that are close to each other. The top of the support frame 6 is connected to the side wall of the second side mold 3, and the bottom of the support frame 6 is connected to the upper end face of the bottom plate template 1.

[0049] See Figure 6 This diagram illustrates the process before step S130 of the present invention. The present invention provides a construction method for a segmented post-cast strip side formwork, the process before step S130 including: Step S1301: Set a first partition 7 at the upper end of the first side mold 2.

[0050] The first partition 7 is made of environmentally friendly polyurethane dustproof filter cotton, which is low in cost. The first partition 7 is arranged along the upper end of the first side mold 2.

[0051] In this embodiment, the first partition 7 is disposed between the first side mold 2 and the second side mold 3, which effectively prevents grout leakage from the joint between the side molds.

[0052] See Figure 7 This diagram illustrates another flow chart of step S130 of the present invention. The present invention provides a construction method for a segmented post-cast strip side formwork, wherein step S130 includes: When performing step S134: when tying the lower layer slab reinforcement 10, the vertical slab reinforcement 11 in the lower layer slab reinforcement 10 is passed through the first partition 7.

[0053] In this process, a first layer of environmentally friendly polyurethane dustproof filter cotton is laid on the upper end of the first side mold 2. When binding the lower layer of reinforcing bars 10, the vertical reinforcing bars 11 in the lower layer of reinforcing bars 10 are placed on top of this layer of environmentally friendly polyurethane dustproof filter cotton. Then, a second layer of environmentally friendly polyurethane dustproof filter cotton is laid on top of the first layer of environmentally friendly polyurethane dustproof filter cotton. By wrapping and covering the vertical reinforcing bars 11 with two layers of environmentally friendly polyurethane dustproof filter cotton, grout leakage during pouring can be effectively prevented.

[0054] See Figure 8 This diagram illustrates the process before step S140 of the present invention. The present invention provides a construction method for a segmented post-cast strip side formwork, the steps before S140 including: Step S1401: Set a second partition 8 at the upper end of the second side mold 3.

[0055] The second partition 8 is made of the same material as the first partition 7, which is also environmentally friendly polyurethane dustproof filter cotton. The second partition 8 is arranged along the upper end of the second side mold 3.

[0056] In this embodiment, the second partition 8 is disposed between the second side mold 3 and the third side mold 4, which effectively prevents grout leakage from the joint between the side molds.

[0057] See Figure 9 The diagram shows a flow chart of step S140 of the present invention. The present invention provides a construction method for a segmented post-cast strip side formwork, step S140 including: When performing step S141: When tying the upper layer slab reinforcement 9, the vertical reinforcement 11 in the upper layer slab reinforcement 9 is passed through the second partition 8.

[0058] In this process, a first layer of environmentally friendly polyurethane dustproof filter cotton is laid on the upper end of the second side mold 3. When binding the upper layer of reinforcing bars 9, the vertical reinforcing bars 11 in the upper layer of reinforcing bars 9 are placed on top of this layer of environmentally friendly polyurethane dustproof filter cotton. Then, a second layer of environmentally friendly polyurethane dustproof filter cotton is laid on top of the first layer of environmentally friendly polyurethane dustproof filter cotton. By wrapping and covering the vertical reinforcing bars 11 with two layers of environmentally friendly polyurethane dustproof filter cotton, grout leakage during pouring can be effectively prevented.

[0059] In this embodiment, the top support rod of the plate is connected and reinforced to the third side mold 4 using connecting nails.

[0060] See Figure 10 This diagram illustrates another flow chart of a construction method for a segmented post-cast strip side formwork according to the present invention. The present invention provides a construction method for a segmented post-cast strip side formwork, further comprising: Execute step S160: Place the first side mold 2, the second side mold 3, and the third side mold 4, which are set up vertically, on the same plane.

[0061] The alignment of the side walls of the first side mold 2, the second side mold 3, and the third side mold 4 ensures the smoothness and aesthetics of the side walls of the building slab structure.

[0062] See Figure 11 This diagram illustrates another flow chart of a construction method for a segmented post-cast strip side formwork according to the present invention. The present invention provides a construction method for a segmented post-cast strip side formwork, further comprising: Step S170: Erect an outer formwork on the bottom formwork 1, and pour concrete in the pouring space formed by the outer formwork and the side formwork of the post-pouring strip to form two adjacent building slab structures.

[0063] The outer formwork is erected on both sides of the segmented post-pouring strip side formwork, forming a pouring space for two building slabs between the outer formwork and the post-pouring strip side formwork.

[0064] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A construction method for segmented post-cast strip side formwork, characterized in that, Includes the following steps: Provide a bottom formwork, and set the bottom formwork at the bottom position of the adjacent building slab to be poured. The bottom formwork is also correspondingly supported at the bottom of the reserved space of the post-pouring strip. First side molds are respectively set on both sides of the reserved space of the post-pouring strip, and the two first side molds are set opposite to each other on the bottom template of the plate; According to the setting position of the first side mold, a second side mold is set above the two first side molds respectively, and the lower layer reinforcement of the building slab to be poured is tied between the first side mold and the second side mold. A third side mold is set above each of the two second side molds, and the upper reinforcement of the building slab to be poured is tied between the second side mold and the third side mold. A top support plate is set between the two third side molds to form a space reserved for the post-cast strip.

2. The construction method of the segmented post-pouring strip side formwork according to claim 1, characterized in that, The step of setting second side molds above the two first side molds according to their respective positions, and binding the lower reinforcement of the building slab to be poured between the first side molds and the second side molds includes: The second side formwork is placed between the upper slab reinforcement and the lower slab reinforcement.

3. The construction method of the segmented post-pouring strip side formwork according to claim 2, characterized in that, The step of setting second side molds above the two first side molds according to their respective positions, and binding the lower reinforcement bars of the building slab to be poured between the first side molds and the second side molds further includes: The height of the second side formwork is set according to the spacing between the upper and lower slab reinforcements.

4. The construction method of the segmented post-pouring strip side formwork according to claim 1, characterized in that, The step of setting second side molds above the two first side molds according to their respective positions, and binding the lower reinforcement bars of the building slab to be poured between the first side molds and the second side molds further includes: A support frame is provided between the second side mold and the bottom mold plate.

5. The construction method of a segmented post-pouring strip side formwork according to claim 1, characterized in that, The step of setting second side molds above the two first side molds according to their respective positions, and binding the lower reinforcement bars of the building slab to be poured between the first side molds and the second side molds includes: A first partition layer is provided at the upper end of the first side mold.

6. A construction method for a segmented post-cast strip side formwork according to claim 5, characterized in that, The step of setting second side molds above the two first side molds according to their respective positions, and binding the lower reinforcement of the building slab to be poured between the first side molds and the second side molds includes: When tying the lower layer of slab reinforcement, the vertical slab reinforcement in the lower layer of slab reinforcement is passed through the first partition.

7. The construction method of a segmented post-cast strip side formwork according to claim 1, characterized in that, The step of setting up third side molds above the two second side molds and binding the upper reinforcement bars of the building slab to be poured between the second side molds and the third side molds includes: A second partition layer is provided at the upper end of the second side mold.

8. A construction method for a segmented post-cast strip side formwork according to claim 7, characterized in that, The step of setting up a third side formwork above each of the two second side formworks and binding the upper reinforcement of the building slab to be poured between the second side formwork and the third side formwork includes: When tying the upper layer of slab reinforcement, the vertical slab reinforcement in the upper layer of slab reinforcement is passed through the second partition.

9. A construction method for a segmented post-cast strip side formwork according to claim 1, characterized in that, Also includes: The first side mold, the second side mold, and the third side mold, which are arranged vertically, are placed on the same plane.

10. A construction method for a segmented post-cast strip side formwork according to claim 1, characterized in that, Also includes: An outer formwork is erected on the bottom formwork of the slab, and the pouring is carried out in the pouring space formed by the outer formwork and the side formwork of the post-pouring strip to form two adjacent building slab structures.

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