Column small space wall column formwork device and construction method thereof

Abstract

The application discloses a kind of column small space wall column formwork device and its construction method, utilize the device of original column and lattice column to carry out wall column formwork and fix, to overcome the problem of difficult and fixed difficult problem of wall column construction formwork in such small space, and avoid the security risk of small space worker construction, plane base is tied by pull rod, then adjust the distance between the two sliding blocks in the strip-shaped sliding hole of pressure piece, so that the upper and lower ends of the existing column are respectively embedded in the vertical clamping slot of the two support assemblies on the back of the formwork of the column small space wall column formwork device, finally, the sliding block is locked by locking rod, so as to complete the fixation of main shear wall formwork by using original support structure column and lattice column in small space. The application solves the problem that the wall column formwork cannot be reinforced by using conventional methods such as inclined bracing, throwing bracing and counter bracing due to the small distance between the wall column and the existing column.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a small-space column formwork device for a column and a construction method thereof. BACKGROUND

[0002] With the continuous development of urban construction towards super-high and super-deep, the utilization of underground space is continuously expanded, and the foundation pit excavation is deeper and deeper, and a large number of circular columns and lattice column inner support foundation pit designs are also more and more widely used. During the construction process of such projects, the main basement wall column, especially the civil air defense wall column, has a small distance from the supporting structure column and the lattice column, which is easily blocked by the column, and the conventional method cannot set up inclined struts / throwing struts / counter supports for formwork reinforcement, or even cannot set up counter-pulling screw rods, so that the formwork cannot be counter-pulled and reinforced, thereby causing the risk of formwork explosion, formwork expansion, deviation, and even formwork collapse. In addition, workers also have certain safety hazards during the construction process in such small spaces.

[0003] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present application and should not be regarded as an acknowledgment or any form of suggestion that this information forms prior art that is publicly known. SUMMARY

[0004] In order to overcome the defects of the prior art, a small-space column formwork device for a column and a construction method thereof are provided to solve the problem that the distance between the wall column and the existing column is too small, which causes the wall column formwork to be unable to be reinforced by the conventional method of inclined struts / throwing struts / counter supports.

[0005] To achieve the above-mentioned purpose, a small-space column formwork device for a column is provided, comprising:

[0006] Two formworks are arranged oppositely, and a gap is provided between one formwork and the existing column;

[0007] A planar base is attached to the outer side of each of the two formworks, and the planar base comprises a supporting frame and an inner support, the inner support is arranged in the supporting frame and connected to the inner side of the supporting frame, and a counter-pulling rod is connected between the supporting frames of the two planar bases;

[0008] The support assembly comprises a pressing piece and four articulated arms, the opposite sides of the two plane bases are respectively pressed against the pressing piece, one of the pressing pieces is provided with a strip-shaped sliding hole which is arranged at an angle with the existing column, two sliding blocks are slidably arranged in the strip-shaped sliding hole, the articulated arms have opposite first ends and second ends, the first ends of the two articulated arms are respectively hinged to the two sliding blocks, the first ends of the remaining two articulated arms are hinged to the second ends of the two articulated arms, the second ends of the remaining two articulated arms are hinged and connected through a hinge shaft and extend into the strip-shaped sliding hole, the hinge shaft is pressed against one side of the pressing piece facing the existing column, and the remaining two articulated arms are respectively pressed against the opposite sides of the existing column, and the two sliding blocks are respectively connected to the other pressing piece through a locking rod.

[0009] Further, the supporting frame and the formwork are respectively provided with first through holes, the pair of pull rods are detachably arranged in the first through holes, the two ends of the pair of pull rods are formed with external threads, the pair of pull rods are screwed with screwing pieces, and the screwing pieces are pressed against one side of the supporting frame away from the formwork.

[0010] Further, the inner support comprises cross-arranged transverse struts and longitudinal struts, the transverse struts are arranged along the width direction of the formwork, and the longitudinal struts are arranged along the length direction of the formwork.

[0011] Further, the pressing piece is arranged along the width direction of the formwork.

[0012] Further, the pressing piece comprises two steel pipes arranged in the same direction, and the two steel pipes are arranged in a gap to form the strip-shaped sliding hole.

[0013] Further, opposite side walls of the two steel pipes are provided with strip-shaped through holes, the two ends of the sliding blocks respectively extend into the strip-shaped through holes of the two steel pipes, the two ends of the sliding blocks are respectively formed with limiting blocks, and the limiting blocks abut against the inner walls of the steel pipes.

[0014] The application provides a construction method of a column small-space formwork device of an existing column, comprising the following steps:

[0015] Two formworks are respectively erected, and the two formworks are arranged oppositely, and one formwork is arranged in a gap with the existing column;

[0016] Plane bases are respectively attached to the outer sides of the two formworks;

[0017] A pair of pull rods are connected between the supporting frames of the two plane bases;

[0018] The two pressing pieces of the support assembly are respectively pressed against the opposite sides of the two plane bases;

[0019] The two sliding blocks are respectively pulled together by the locking rod to lock the two sliding blocks, so that the remaining two hinged arms on one pressing component close to the existing column are respectively pressed against the opposite sides of the existing column, and the support assembly is supported between the existing column and the formwork.

[0020] The column small space wall column formwork device has the advantages that the column small space wall column formwork device is used for the condition that the distance and space between the steel pipe column or the lattice column structure of the foundation pit support and the shear wall column of the basement body are too small, the device is used for wall column formwork support and fixing by using the original column and the lattice column, the problems of difficult support and fixing of the wall column construction in the small space are solved, and the safety hidden danger of the worker construction in the small space is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0021] Other characteristics, objects and advantages of the present application will become more apparent from the detailed description of non-restrictive embodiments, made with reference to the following drawings:

[0022] Figure 1 The column small space wall column formwork device is a structure schematic view of the embodiment of the present application.

[0023] Figure 2 The column small space wall column formwork device is a top view of the embodiment of the present application.

[0024] Figure 3 The column small space wall column formwork device is a structure schematic view of the upper part of the embodiment of the present application.

[0025] Figure 4 The column small space wall column formwork device is a structure schematic view of the back of the embodiment of the present application.

[0026] Figure 5 The column small space wall column formwork device is a structure schematic view of the support assembly of the embodiment of the present application.

[0027] Figure 6 The column small space wall column formwork device is a structure schematic view of the pressing component of the embodiment of the present application.

[0028] Figure 7This is a three-dimensional structural diagram of the pressing component according to an embodiment of the present invention.

[0029] Figure 8 This is a schematic diagram of the hinge shaft according to an embodiment of the present invention. Detailed Implementation

[0030] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Reference Figures 1 to 8 As shown, the present invention provides a support formwork device for small space wall columns, including: two templates 1, a flat base 2 and a support component 3.

[0033] See Figure 2 and Figure 3 As shown, the two templates 1 are arranged opposite each other. Among them, one template 1 on the back of the column support device is arranged opposite to the existing column 4, and the template 1 on the back of the column support device is spaced apart from the existing column 4.

[0034] Two templates 1 are respectively attached to the outer sides of a planar base 2. In this embodiment, the planar base is a planar steel structure.

[0035] Specifically, the planar base 2 includes a support frame 21 and an inner support. The inner support is disposed inside the support frame 21. The inner support is connected to the inner side of the support frame 21. A tie rod 23 connects the support frames 21 of the two planar bases 2.

[0036] In this embodiment, the internal support includes a transverse strut 221 and a longitudinal strut 222 arranged in a cross configuration. The transverse strut 221 is arranged along the width direction of the template 1, and the longitudinal strut 222 is arranged along the length direction of the template 1.

[0037] In a preferred embodiment, the support frame 21 and the template 1 are each provided with a first through hole. A tie rod is detachably inserted into the first through hole. External threads are formed at both ends of the tie rod. A threaded engagement piece is screwed onto the tie rod. The threaded engagement piece presses against the side of the support frame 21 away from the template 1.

[0038] The support assembly 3 includes a pressing member 31 and four hinged arms 32.

[0039] Two opposite sides of the two planar bases 2 are respectively pressed against the pressing members 31. One of the pressing members 31 close to the existing column 4 is provided with a strip-shaped sliding hole. The strip-shaped sliding hole is arranged at an angle with the existing column 4. Two sliding blocks 311 are slidably arranged in the strip-shaped sliding hole. The hinged arms 32 have opposite first ends and second ends. The first ends of the two hinged arms 32 are respectively hinged to the two sliding blocks 311. The first ends of the remaining two hinged arms 32 are hinged to the second ends of the two hinged arms 32. The second ends of the remaining two hinged arms 32 are hingedly connected through the hinge shaft 33 and extend into the strip-shaped sliding hole.

[0040] Referring to Figure 8 the hinged shaft 33 is pressed against one side of the pressing member 31 facing the existing column 4. The remaining two hinged arms 32 are respectively pressed against the opposite two sides of the existing column 4. The two sliding blocks 311 are respectively connected to the other pressing member 31 through the locking rod 34.

[0041] The four hinged arms are hingedly connected end to end. Referring to Figure 2 the two hinged arms are hingedly formed into a "V" shape structure. The two "V" shape structures are hingedly connected through the four hinged arms to form a "W" shape support structure. Between the two "V" shape structures, a vertical clamping groove is formed. The existing column is embedded in the vertical clamping groove. In this embodiment, a plurality of support assemblies are installed on the back of the formwork 1 of the column small space wall column formwork device. The upper and lower ends of the existing column are respectively embedded in the vertical clamping grooves of the two support assemblies on the back of the formwork 1 of the column small space wall column formwork device.

[0042] Referring to Figure 4 and Figure 5 the pressing member 31 is arranged along the width direction of the formwork 1.

[0043] As a preferred embodiment, the pressing member 31 includes two steel pipes arranged in the same direction. The two steel pipes are arranged in a gap to form a strip-shaped sliding hole.

[0044] In this embodiment, referring to Figure 6 and Figure 7 opposite side walls of the two steel pipes are provided with strip-shaped through holes. Two ends of the sliding block 311 respectively extend into the strip-shaped through holes of the two steel pipes. The two ends of the sliding block 311 respectively form limiting blocks 312. The limiting blocks 312 abut against the inner walls of the steel pipes.

[0045] The present application provides a construction method of a column small space wall column formwork device, comprising the following steps:

[0046] S1: two formworks 1 are respectively erected, the two formworks 1 are arranged opposite to each other, and one formwork 1 is arranged in a gap with the existing column 4.

[0047] S2: planar bases 2 are respectively attached to the outer sides of the two formworks 1.

[0048] S3: connecting the opposite pull rods between the supporting frames 21 of the two plane bases 2.

[0049] S4: pressing the two pressing members 31 of the support assembly 3 against the opposite sides of the two plane bases 2 respectively.

[0050] S5: locking the two sliding blocks 311 by the locking rods 34 to lock the two sliding blocks 311, so that the remaining two hinged arms 32 on one pressing member 31 close to the existing column 4 are pressed against the opposite sides of the existing column 4, and then the support assembly 3 is supported between the existing column 4 and the formwork 1.

[0051] The column small-space wall column formwork device of the application is used for the case that the distance and space between the steel pipe column or lattice column structure of the foundation pit support and the main shear wall column of the basement are too small, and utilizes the original column and lattice column to support and fix the wall column formwork, thereby overcoming the difficulty in supporting and fixing the wall column in a small space and avoiding the safety hazards in the construction of the small space.

[0052] In the process of supporting the shear wall column formwork, the plane base is formed by welding square tubes, the plane base is connected by the opposite pull rods, the distance between the two sliding blocks in the strip-shaped sliding hole of the pressing member is adjusted, the upper and lower ends of the existing column are respectively embedded in the vertical clamping slots of the two support assemblies on the back of the formwork of the column small-space wall column formwork device, and finally the sliding blocks are locked by the locking rods, thereby fixing the main body shear wall formwork by using the original support structure column and lattice column in a small space, overcoming the difficulty in supporting and fixing the wall column in a small space, converting the disadvantage of a small space into an advantage, and freely combining into a corresponding angle according to the site conditions of the construction, the device is convenient to install and disassemble, and the overall operation is simple and convenient.

[0053] The support assembly of the column small-space wall column formwork device can flexibly adjust the fixed angle according to the different sizes of the existing column on site.

[0054] The column small-space wall column formwork device uses all conventional materials (convenient to obtain materials) on the construction site and is simple to manufacture, can be repeatedly used (high turnover utilization rate), greatly improves the stability of the wall column formwork support, maximally utilizes the original support column / lattice column structure to reinforce the wall column formwork, effectively controls the poor stability of the wall column formwork in a small space, reduces the risk of explosion, expansion, deviation or even collapse of the formwork in the wall column formwork reinforcement in such a column small space, and avoids the safety hazards of workers in the construction process in such a small space.

[0055] The above description is only the preferred embodiment of the present application and the explanation of the technical principles. It should be understood by those skilled in the art that the scope of the protection of the present application is not limited to the technical solutions formed by the specific combinations of the above technical features. It should also cover other technical solutions formed by the combinations of the above technical features or their equivalent features without departing from the concept of the present application. For example, the technical solutions formed by the mutual replacement of the above features and the technical features with similar functions disclosed (but not limited to) in the present application.

Claims

1. A formwork support device for small-space wall columns, characterized in that, include: Two templates are set up opposite each other, with one template having a gap between it and the existing column; A planar base is attached to the outer sides of the two templates respectively. The planar base includes a support frame and an inner support. The inner support is disposed inside the support frame and connected to the inner side of the support frame. A tie rod is connected between the support frames of the two planar bases. The support assembly includes a retaining member and four hinged arms. The retaining members are respectively pressed against the opposite sides of the two planar bases. A strip-shaped sliding hole is opened on one of the retaining members near the existing column. The strip-shaped sliding hole is set at an angle to the existing column. Two sliders slide in the strip-shaped sliding hole. The hinged arms have opposite first and second ends. The first ends of the two hinged arms are respectively hinged to the two sliders. The first ends of the other two hinged arms are hinged to the second ends of the two hinged arms. The second ends of the other two hinged arms are hinged to each other through a hinge shaft and extend into the strip-shaped sliding hole. The hinge shaft presses against the side of the retaining member facing the existing column. The other two hinged arms press against opposite sides of the existing column. The two sliders are respectively connected to another retaining member through a locking rod.

2. The column support device for small spaces according to claim 1, characterized in that, The support frame and the template are respectively provided with a first through hole. The tie rod is detachably inserted into the first through hole. Both ends of the tie rod are formed with external threads. The tie rod is screwed with a threaded engagement member. The threaded engagement member presses against the side of the support frame away from the template.

3. The column support device for small space walls and columns according to claim 1, characterized in that, The internal support includes horizontal and vertical struts arranged in a cross pattern. The horizontal struts are arranged along the width direction of the template, and the vertical struts are arranged along the length direction of the template.

4. The column support device for small space walls and columns according to claim 3, characterized in that, The pressing element is arranged along the width direction of the template.

5. The column support device for small space walls and columns according to claim 1, characterized in that, The pressing component includes two steel pipes arranged in the same direction, with the gap between the two steel pipes forming the strip-shaped sliding hole.

6. The column support device for small space walls and columns according to claim 5, characterized in that, The two steel pipes have strip-shaped through holes on their opposite sidewalls. The two ends of the slider extend into the strip-shaped through holes of the two steel pipes respectively. The two ends of the slider form limit blocks, which abut against the inner wall of the steel pipes.

7. A construction method for a column-supported formwork device for small-space walls and columns as described in any one of claims 1 to 6, characterized in that, Includes the following steps: Two templates are erected, facing each other, with a gap between one template and the existing column. A planar base is attached to the outer side of each of the two templates; A tie rod is connected between the support frames of the two planar bases; The two pressing members of the support assembly are pressed against the opposite sides of the two planar bases respectively; The two sliders are locked to another pressing member by the locking rod, so that the other two hinged arms on the pressing member near the existing column press against the opposite sides of the existing column, thereby supporting the support assembly between the existing column and the template.

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