A unilateral formwork structure and a construction method thereof

Abstract

The application discloses a single-side formwork structure and a construction method thereof, and relates to the technical field of wallboard formwork, which comprises a formwork component, a connecting component and a first formwork, vertical beams and horizontal beams and a second vertical beam; the connecting component comprises embedded parts and fasteners. The formwork component is fixedly connected to the inner side of the outer wall through the connecting component to form a single-side formwork structure of the basement outer wall, the first formwork is sequentially supported by the first vertical beam, the horizontal beam and the second vertical beam, and then the first formwork is fastened through the connecting component, so that the original inclined support is removed, the space required for construction is saved, the pouring construction is suitable for narrow spaces, the structure wallboard and the top plate can be simultaneously poured, the construction joint is reduced, the construction quality is improved, the second vertical beam can be removed after 24 hours of pouring to facilitate the use of the upper structure, the material is easy to remove and has a high turnover, the construction efficiency is improved, and the construction progress is accelerated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wallboard formwork, in particular to a single-side formwork structure and a construction method thereof. BACKGROUND

[0002] The underground continuous wall enclosure structure is closely attached to the basement outer wall, and the outer wall formwork construction does not have the condition of double-side formwork, and can only set the formwork in a single direction on the inner side of the outer wall. The traditional single-side formwork method mainly sets up a diagonal bracing bent strutting system by steel pipes, fasteners and formworks, the wallboard is fixed first, and then multiple diagonal braces are used for reinforcement. In some construction sites with narrow space, the erection of the lower support and the diagonal brace cannot be satisfied, and a large amount of materials and labor are consumed during construction, the erection and removal amount is very large, the construction efficiency is low, and the construction quality is difficult to guarantee, and many other problems.

[0003] Therefore, it is necessary to design a wallboard single-side formwork structure with low space requirement and suitable for narrow space to solve the technical problems currently faced, but only single-side formwork is performed on the inner side, how to ensure the construction quality while reducing the structural construction joint, and easy operation has become the key to be solved. SUMMARY

[0004] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, the abstract and the title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0005] In view of the problems in the prior art that the traditional single-side formwork cannot satisfy the erection of the lower support and the diagonal brace in some construction sites with narrow space, a large amount of materials and labor are consumed during construction, the erection and removal amount is very large, the construction efficiency is low, and the construction quality is difficult to guarantee, the present application is proposed.

[0006] Therefore, the purpose of the present application is to provide a single-side formwork structure and a construction method thereof.

[0007] To solve the above technical problems, the present application provides the following technical scheme: a single-side formwork structure, comprising a formwork assembly, the formwork assembly comprising a first formwork, a first vertical beam, a horizontal beam and a second vertical beam, the first formwork being arranged on the inner side of the outer wall, the first vertical beam being arranged on one side of the first formwork, the horizontal beam being arranged on one side of the first vertical beam, and the second vertical beam being arranged on one side of the horizontal beam.

[0008] A connecting assembly is connected to the formwork assembly and comprises a pre-embedded part and a fastener, the pre-embedded part being arranged inside the outer wall, and the fastener being connected to the second vertical beam and the pre-embedded part.

[0009] As a preferred scheme of the unilateral formwork structure, the embedded part comprises a section iron and a hook-shaped screw rod, the section iron is embedded in the bearing platform, and the section iron is connected with the second vertical beam; the hook-shaped screw rod is embedded in the outer wall, and the hook-shaped screw rod is connected with the fastener.

[0010] As a preferred scheme of the unilateral formwork structure, the fastener comprises a fastening beam and a tension screw rod, the fastening beam is arranged on one side of the second vertical beam, and the fastening beam is connected with the hook-shaped screw rod and the tension screw rod.

[0011] As a preferred scheme of the unilateral formwork structure, the lateral wall of the transverse beam is provided with an anti-floating wood block, and the anti-floating wood block is in abutment with the lateral wall of the transverse beam.

[0012] As a preferred scheme of the unilateral formwork structure, the connecting assembly further comprises a limiting part, the limiting part comprises a limiting angle iron and an anti-floating angle iron, the limiting angle iron and the anti-floating angle iron are arranged on the lateral wall of the second vertical beam, and the limiting angle iron and the anti-floating angle iron are connected with the structural slab.

[0013] As a preferred scheme of the unilateral formwork structure, the limiting angle iron and the anti-floating angle iron are respectively arranged on two sides of the structural slab, and the lateral wall of the limiting angle iron is further provided with an inclined wood block, and the inclined wood block is connected with the structural slab.

[0014] As a preferred scheme of the unilateral formwork structure, the formwork assembly further comprises a leveling formwork, the leveling formwork is arranged on one side of the outer wall, and the leveling formwork is between the first formwork and the outer wall.

[0015] To solve the above technical problems, the present application further provides the following technical scheme: a unilateral formwork construction method, comprising the steps of arranging an embedded part at the bottom of an outer wall;

[0016] Laying a formwork assembly;

[0017] The bottom of the second vertical beam is anchored by using a fastening beam and a hook-shaped screw rod with a gasket;

[0018] The top of the second vertical beam is anchored by using a tension screw rod and a fastening beam;

[0019] The second vertical beam is welded with the section iron;

[0020] After the second vertical beam is removed, the upper opening is reserved from the upper layer structure;

[0021] The second vertical beam above the structural slab is connected and fixed with the structural slab by using a limiting part.

[0022] As a preferred scheme of the unilateral formwork construction method, the first layer of the basement unilateral formwork construction method comprises the following steps: laying the leveling formwork, laying the first formwork, laying the first vertical beam, laying the horizontal beam, and laying the second vertical beam.

[0023] As a preferred scheme of the unilateral formwork construction method, the first layer of the basement unilateral formwork construction method comprises the following steps: laying the leveling formwork, laying the first formwork, laying the first vertical beam, laying the horizontal beam, and laying the second vertical beam.

[0024] The second vertical beam can be removed after the concrete of the outer wall plate is poured.

[0025] The basement unilateral formwork construction method has the following beneficial effects: the formwork assembly is fixedly connected to the inner side of the outer wall through the connecting assembly to form the unilateral formwork structure of the basement outer wall, the first formwork is sequentially provided with support force through the first vertical beam, the horizontal beam and the second vertical beam, and the first formwork is fastened through the connecting assembly, so that the original inclined support is removed, the space required for construction is saved, the pouring construction in a narrow space is applicable, the structure wall plate and the top plate can be simultaneously poured, the construction joint is reduced, the construction quality is improved, the second vertical beam can be removed after 24 hours of pouring to facilitate the use of the upper structure, the material is easy to remove and has a fast turnover, the construction efficiency is improved, and the construction progress is accelerated. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort. Among them:

[0027] Figure 1 The first layer of the basement unilateral formwork construction method provided by the present application is shown in the schematic diagram.

[0028] Figure 2 The second layer of the basement unilateral formwork construction method provided by the present application is shown in the schematic diagram.

[0029] Figure 3 The first layer of the basement unilateral formwork construction method provided by the present application is shown in the schematic diagram.

[0030] Figure 4 The second layer of the basement unilateral formwork construction method provided by the present application is shown in the schematic diagram.

[0031] Figure 5 The second layer of the basement unilateral formwork construction method provided by the present application is shown in the schematic diagram. DETAILED DESCRIPTION

[0032] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0033] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application, however, can be practiced in a variety of ways from different perspectives, and the present application is not limited to the embodiments described herein. It can be appreciated by those skilled in the art that the present application can be implemented in other different manners, and can be implemented in other different ways from the embodiments described herein without departing from the spirit and scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0034] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0035] Embodiment one

[0036] Reference Figures 1-2 For the first embodiment of the present application, the embodiment provides a single-sided formwork structure, comprising a formwork assembly 100 and a connecting assembly 200. The formwork assembly is fixedly connected to the inner side of the outer wall through the connecting assembly to form a single-sided formwork structure of the basement outer wall, and the original inclined bracing is removed to save the space required for construction, suitable for pouring construction in a narrow space, and can realize simultaneous pouring of the structural wall plate and the top plate, reduce the construction joint, improve the construction quality, and the second vertical beam can be removed after 24 hours of simultaneous pouring to facilitate the use of the upper structure, and the material is easy to remove and has fast turnover.

[0037] Specifically, the formwork assembly 100 comprises a first formwork 101, a first vertical beam 102, a horizontal beam 103 and a second vertical beam 104, the first formwork 101 is arranged on the inner side of the outer wall, the first vertical beam 102 is arranged on the side away from the first formwork 101, the horizontal beam 103 is arranged on the side away from the first vertical beam 102, and the second vertical beam 104 is arranged on the side away from the horizontal beam 103, and the second vertical beam 104 and the horizontal beam 103 are fastened and connected through self-tapping screws.

[0038] The formwork assembly 100 further comprises a leveling formwork 105, the leveling formwork 105 is arranged on one side of the outer wall, and the leveling formwork 105 is between the first formwork 101 and the outer wall. Before laying the first formwork 101, the leveling formwork 105 is laid first, and preferably, the leveling formwork 105 can be a wood mold layer or a sprayed fine stone concrete layer.

[0039] Further, the connecting assembly 200 connects the template assembly 100, which comprises a pre-embedded part 201 and a fastener 202, the pre-embedded part 201 is arranged inside the outer wall, the fastener 202 is connected with the second vertical beam 104, and the fastener 202 is connected with the pre-embedded part 201, the template assembly 100 is fixedly connected with the outer wall through the connection of the pre-embedded part 201 and the fastener 202, a single-side formwork structure is formed, and the inclined support structure is cancelled to cope with the construction environment with small construction space.

[0040] During construction, the pre-embedded part 201 is embedded to the specified position first, and then the construction personnel completes the laying of the leveling formwork 105, and then the connecting assembly 200 is used to lay other structures of the template assembly 100, after the laying is completed and other preparation work is completed, the basement outer wall concrete pouring work can be carried out, because the inclined support is cancelled and replaced by the connecting assembly 200, the basement with small space or limited construction space can also be used, and after the space saved by the inclined support, the top plate and the side wall plate can be started to be supported and poured at the same time, which greatly saves the construction period.

[0041] Preferably, compared with the construction scheme of adopting the traditional single-side formwork, i.e. full-frame combined formwork formwork, the traditional scheme has large installation and disassembly workload, slow construction progress, and construction quality is not easy to guarantee, while the new single-side formwork construction method can greatly improve the fixing effect, greatly improve the construction efficiency, reduce the construction cost, and the construction site is more clean and orderly, and the construction efficiency comparison of the new single-side formwork construction method and the traditional single-side formwork method is shown in the following table.

[0042] Construction efficiency comparison of formwork trolley and full-frame combined formwork

[0043]

[0044]

[0045] Embodiment two

[0046] Reference Figures 1-5 For the second embodiment of the application, the embodiment one is explained.

[0047] Specifically, the pre-embedded part 201 comprises a U-shaped iron part 201a and a hook-shaped screw 201b, the U-shaped iron part 201a is pre-embedded in the pile cap, and the U-shaped iron part 201a is welded and connected with the bottom of the second vertical beam 104, the hook-shaped screw 201b is pre-embedded in the outer wall, and the hook-shaped screw 201b is anchoringly connected with the fastener 202, it should be noted that when pouring the first layer of basement outer wall, the pre-embedded position of the hook-shaped screw 201b is in the pile cap, and the pre-embedded end of the hook-shaped screw 201b is L-shaped, so that it has better anti-pulling performance, that is, the template assembly 100 can be erected more stably.

[0048] Further, the fastener 202 comprises a fastening bar 202a and a tensioning screw 202b, the fastening bar 202a is arranged on one side of the second vertical bar 104 and connected with the hook-shaped screw 201b and the tensioning screw 202b, preferably, the fastening bar 202a is selected as a square steel pipe bar, the hook-shaped screw 201b and the tensioning screw 202b are double-stacked up and down, and then the two are connected by anchor fastening with a gasket, so as to realize the fastening connection of the second vertical bar 104.

[0049] Further, the lateral wall of the lateral bar 103 is provided with a floating resisting block 103a, the floating resisting block 103a abuts against the lateral wall of the lateral bar 103, through the limiting action of the floating resisting blocks 103a on both sides of the lateral bar 103, the position of the lateral bar 103 can be fixed, so as to avoid the movement of the lateral bar 103 in the construction process and affect the stability of the formwork, and the floating resisting block 103a can be fastened by self-tapping screws.

[0050] Further, the connecting assembly 200 further comprises a limiting piece 203, the limiting piece 203 comprises a limiting angle iron 203a and a floating resisting angle iron 203b, the limiting angle iron 203a and the floating resisting angle iron 203b are arranged on the lateral wall of the second vertical bar 104 and connected with the structural middle plate, it should be noted that the limiting angle iron 203a and the floating resisting angle iron 203b are used when pouring the second layer of basement outer wall, through the limiting piece 203, the fastening connection between the second vertical bar 104 and the reserved hole of the structural middle plate is realized, so as to guarantee the stability of the single-side formwork of the second layer.

[0051] Preferably, the limiting angle iron 203a and the floating resisting angle iron 203b are arranged on both sides of the structural middle plate respectively, and the lateral wall of the limiting angle iron 203a is further provided with an inclined wood block 203a-1, the inclined wood block 203a-1 is connected with the structural middle plate, the inclined wood block 203a-1 is inserted into the gap between the limiting angle iron 203a and the reserved hole, so as to further guarantee the stability.

[0052] In summary, the stability of each lateral bar 103 is guaranteed by the floating resisting block 103a, and the stability of the second vertical bar 104 during the pouring of the second layer is guaranteed by the limiting piece 203, so that the single-side formwork system during the pouring of the second layer can also guarantee stability.

[0053] Embodiment three

[0054] Reference Figures 1-5 For the third embodiment of the application, which is based on the previous embodiment, the difference is that a single-side formwork structure and a construction method thereof are provided, comprising:

[0055] The embedded part 201 is arranged at the bottom of the outer wall;

[0056] The formwork assembly 100 is laid;

[0057] The bottom of the second vertical beam 104 is anchored by the fastening beam 202a and the hook-shaped screw 201b with a gasket;

[0058] The top of the second vertical beam 104 is anchored by the tensioning screw 202b and the fastening beam 202a;

[0059] The second vertical beam 104 is welded with the U-shaped iron piece 201a;

[0060] After the second vertical beam 104 is removed, the upper reserved hole is used to transport the structure to the upper layer;

[0061] When the second vertical beam 104 above the structure plate is connected and fixed with the structure plate using the limiting piece 203 to lay the formwork assembly 100, the leveling formwork 105 is laid first, and then the first formwork 101, the first vertical beam 102, the horizontal beam 103, and the second vertical beam 104 are laid in sequence

[0062] The second vertical beam 104 passes through the structure plate, and the length exceeding the construction joint can be anchored, and the tensioning screw 202b is connected with the outer wall by the embedded steel bar method;

[0063] The second vertical beam 104 can be removed after the outer wall plate concrete is poured for 24 hours.

[0064] Preferably, the embodiment provides a specific implementation step:

[0065] First, a 250*250*10mm U-shaped iron piece 201a is embedded at the bottom about 200mm away from the outer wall surface and used for welding with the second vertical beam 104 later, and a hook-shaped screw 201b is embedded at the root of the wall plate for anchoring with the fastening beam 202a later.

[0066] After the bottom plate structure construction reaches the outer wall plate construction joint, the single-sided formwork structure construction of the outer wall plate is carried out, first, 18mm thick plywood is laid as the first formwork 101, 40*90mm vertical wooden beams are fixed outside as the first vertical beam 102 with a spacing of 250mm, then 50*100*3mm horizontal square tube steel beams are used as the horizontal beam 103 with a reinforcement spacing of 600mm, and finally, 18# single groove steel beams are used as the second vertical beam 104 with a spacing of 1200mm.

[0067] Secondly, after adjusting the verticality of the wall plate, the bottom uses double-spliced 50*100*3mm horizontal square steel tube beams as the fastening beam 202a and the embedded part 201 with a gasket for anchoring.

[0068] Further, the second vertical beam 104 passing through the structure plate is fixed at a position 200mm above the construction joint, and the embedded tensioning screw 202b and the double-spliced 50*100*3mm horizontal square steel beams are used as the fastening beam 202a for anchoring.

[0069] After the top end and the lower end of the second vertical ridge 104 are adjusted and fixed, the second vertical ridge 104 is welded with the bottom embedded U-shaped iron piece 201a.

[0070] It should be noted that the outer channel steel can be removed after 24 hours of concrete pouring of the outer wall panel, that is, the second vertical ridge 104 is transported to the upper layer structure from the upper reserved hole.

[0071] Preferably, the upper structure of the middle plate is similar in the form of one-side formwork support, but the fixing forms of the upper and lower ends of the second vertical ridge 104 are different. The lower end is fixed by using 5# angle iron as limiting angle iron 203a, which is welded with the second vertical ridge 104. The upper end is fixed by using embedded crown beam steel and tensioning screw rod 202b for welding.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A single-sided formwork structure, characterized in that: include, A template assembly (100) includes a first template (101), a first vertical rib (102), a horizontal rib (103), and a second vertical rib (104). The first template (101) is disposed on the inner side of the exterior wall, the first vertical rib (102) is disposed on one side of the first template (101), the horizontal rib (103) is disposed on one side of the first vertical rib (102), and the second vertical rib (104) is disposed on one side of the horizontal rib (103). A connecting component (200) is connected to a template component (100), including an embedded part (201) and a fastener (202). The embedded part (201) is located inside the exterior wall or inside the foundation, and the fastener (202) is connected to the second vertical rib (104). The embedded part (201) includes a U-shaped iron piece (201a) and a hook-shaped screw (201b). The U-shaped iron piece (201a) is embedded inside the foundation and is connected to the second vertical rib (104). The hook-shaped screw (201b) is embedded inside the outer wall. The fastener (202) includes a fastening rib (202a) and a pull rod (202b). The fastening rib (202a) is disposed on one side of the second vertical rib (104) and is connected to the hook-shaped screw (201b) and the pull rod (202b). The transverse rib (103) sidewall is provided with an anti-floating wooden block (103a), which abuts against the sidewall of the transverse rib (103); The connecting assembly (200) further includes a limiting member (203), which includes a limiting angle iron (203a) and an anti-buoyancy angle iron (203b). The limiting angle iron (203a) and the anti-buoyancy angle iron (203b) are disposed on the side wall of the second vertical rib (104), and the limiting angle iron (203a) and the anti-buoyancy angle iron (203b) are connected to the middle plate of the structure. The limiting angle iron (203a) and the anti-buoyancy angle iron (203b) are respectively set on both sides of the middle plate of the structure to realize the fastening connection between the second vertical rib (104) and the reserved hole in the middle plate of the structure. The side wall of the limiting angle iron (203a) is also provided with a sloping wooden block (203a-1), which is connected to the middle plate of the structure. The inclined wooden block (203a-1) is inserted into the gap between the limiting angle iron (203a) and the second vertical rib (104) in the reserved hole.

2. The single-sided formwork structure as described in claim 1, characterized in that: The template assembly (100) also includes a leveling template (105), which is set on one side of the exterior wall and is located between the first template (101) and the exterior wall.

3. A single-sided formwork construction method, characterized in that: Includes the single-sided formwork structure as described in any one of claims 1-2; And the following steps, Embedded parts (201) are installed at the bottom of the exterior wall; Laying template components (100); The bottom of the second vertical rib (104) is anchored with a fastening rib (202a) and a hook-shaped screw (201b) and a washer; The top of the second vertical rib (104) is anchored to the fastening rib (202a) using tie rods (202b); The second vertical rib (104) is welded to the U-shaped iron piece (201a); After removing the second vertical rib (104), it is transported to the upper layer structure through the reserved hole at the top. The second vertical rib (104) above the middle plate of the structure is connected and fixed to the middle plate of the structure using a limiting member (203).

4. The single-sided formwork construction method as described in claim 3, characterized in that: When laying the template assembly (100), first lay the leveling template (105), and then lay the template in the order of first template (101), first vertical rib (102), horizontal rib (103), and second vertical rib (104).

5. The single-sided formwork construction method as described in claim 4, characterized in that: The top of the second vertical rib (104) passes through the middle plate of the structure, and can be anchored after the length of the protrusion exceeds the construction joint. The tie rod (202b) is connected to the outer wall by the rebar anchoring method. The second vertical rib (104) can be removed 24 hours after the concrete of the exterior wall panel is poured.

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