Formwork supporting system of secondary constructional column at wall corner and construction method

Abstract

The invention discloses a formwork system and construction method for a secondary constructional column at a wall corner, and the formwork system comprises an external corner formwork assembly installed at the wall corner, and an internal corner formwork installed at the wall corner. The split bolt assembly is connected between the internal corner formwork and the external corner formwork assembly in a penetrating mode through a combed joint area at the corner of the wall. Finished splicing can be achieved, the construction efficiency is high, the reinforcing effect is good, damage to the structure of an existing wall body due to the fact that holes are formed in the existing wall body is avoided, the structural strength of the existing wall body is not affected, flying dust caused by hole forming is avoided, the beneficial effects that time and labor are saved, the construction difficulty is lowered, and environmental pollution is avoided are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, and in particular to a formwork system and a construction method for secondary structural columns at a wall corner. Background Art

[0002] After the construction of the building frame structure is completed, it is necessary to construct a secondary structure within the building frame structure, where the secondary structure includes secondary walls and secondary structural columns, etc. For the secondary structural columns at the corners, it is not easy to fix them during formwork. The traditional formwork method is to use wooden formwork with tension screws or step-by-step tightening, on-site cutting, drilling, and fixing. The construction is very random, resulting in random holes in the brick walls on site, poor concrete pouring effect, greatly reduced construction quality, poor appearance, and the risk of cracking, which affects the construction quality of the secondary structural columns. Summary of the invention

[0003] The purpose of the present invention is to provide a formwork system and construction method for secondary structural columns at wall corners to solve the problem that the templates for secondary structural columns at corners need to be fixed with holes in the existing wall, resulting in damage to the existing wall structure.

[0004] In order to solve the above technical problems, the present invention provides a formwork system for secondary structural columns at wall corners, comprising: a positive corner formwork assembly installed at the wall corner, a negative corner formwork installed at the wall corner, and a tension bolt assembly that passes through a tooth joint area at the wall corner and is connected between the negative corner formwork and the positive corner formwork assembly.

[0005] Furthermore, the formwork system for secondary structural columns at the corners of the wall provided by the present invention, the external corner formwork assembly includes a first forward formwork and a second forward formwork and a connecting angle plate connecting the two into a whole, and the ends of the first forward formwork and the second forward formwork close to the wall both span the tooth joint area and fit on the wall on the corresponding side.

[0006] Furthermore, in the formwork system for secondary structural columns at the corners of a wall provided by the present invention, the connecting angle plates are respectively connected to the first and second front formworks by a plurality of pins or bolts distributed at longitudinal intervals.

[0007] Furthermore, the formwork system for secondary structural columns at wall corners provided by the present invention, the external angle formwork assembly also includes a plurality of back ribs longitudinally spaced apart on the outside of the first and second front formworks, the back ribs being connected at the external angles by diagonal bolts.

[0008] Furthermore, in the formwork system for secondary structural columns at the corners of the wall provided by the present invention, a reinforcing member for connection with the diagonal bolts is provided on the back ribs.

[0009] Furthermore, in the formwork system for secondary structural columns at the corners of the wall provided by the present invention, bottom support plates are provided at the lower ends of the first and second forward formworks.

[0010] Furthermore, in the formwork system for secondary structural columns at the corners of the wall provided by the present invention, a dustpan opening is provided at the upper end of the first forward formwork or the second forward formwork.

[0011] Furthermore, in the formwork system for secondary structural columns at the corners of the wall provided by the present invention, a plurality of through holes for the tension bolt assemblies to pass through are longitudinally spaced apart on each plate surface of the internal angle formwork.

[0012] Furthermore, in the formwork system for secondary structural columns at the corners of the wall provided by the present invention, the through holes are waist-shaped holes distributed vertically.

[0013] In order to solve the above technical problems, the present invention also provides a construction method of secondary structural columns at the corners of a wall, comprising:

[0014] Formwork for secondary structural columns is performed around the column reinforcements constructed at the corners of the construction wall according to the formwork system for secondary structural columns at the corners of the wall;

[0015] The secondary structural columns of the reinforced concrete structure are formed by pouring concrete through the formwork system.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The formwork system and construction method for secondary structural columns at wall corners provided by the present invention formwork system for secondary structural columns at wall corners formed by a tension bolt assembly that penetrates the tooth joint area and is connected between the inner corner formwork and the outer corner formwork assembly installed at the wall corner. The formwork system has finished product splicing, high construction efficiency, and good reinforcement effect, avoids damage to the existing wall structure caused by opening holes in the existing wall, does not affect the structural strength of the existing wall, avoids dust caused by opening holes, has the advantages of saving time and labor, reduces construction difficulty, and avoids environmental pollution. The secondary structural columns constructed by the formwork system can improve the molding quality of concrete cast for the secondary structural columns, thereby improving the overall construction quality of the secondary structural columns.

[0018] The formwork system and construction method for secondary structural columns at the corners of a wall provided by the present invention are convenient to assemble and disassemble, can be sustainably circulated and utilized, and have the advantages of being green and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a planar structural diagram of the formwork system of the secondary structural columns at the corners of the wall;

[0020] Figure 2 yes Figure 1Elevation section at AA in the middle;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the internal angle template;

[0022] As shown in the figure:

[0023] 100. Formwork system for secondary structural columns at wall corners;

[0024] 110. external angle formwork assembly, 111. formwork, 112. connecting angle plate, 113. latch, 114. back rib, 115. inclined bolt, 116. reinforcing member, 117. bottom support plate, 118. dustpan mouth;

[0025] 120, internal angle template, 121, through hole;

[0026] 130. tension bolt assembly, 131. tension bolt, 133. casing;

[0027] 200. Wall;

[0028] 300. Secondary structural column. DETAILED DESCRIPTION

[0029] The present invention is described in detail below in conjunction with the accompanying drawings: The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0030] Please refer to Figure 1 to Figure 2 An embodiment of the present invention provides a formwork system 100 for secondary structural columns at a wall corner, comprising: a male corner formwork assembly 110 installed at the wall corner, a female corner formwork 120 installed at the wall corner, and a tension bolt assembly 130 that passes through a tooth joint area at the wall corner and is connected between the female corner formwork 120 and the male corner formwork assembly 110.

[0031] Please refer to Figure 1 to Figure 2, wherein the external angle formwork assembly 110 includes a first facing formwork 111, a second facing formwork 111, and a connecting angle plate 112 that connects the two as a whole, wherein the first facing formwork 111 and the second facing formwork 111 have one end close to the wall 200 that spans the tooth joint area and fits on the wall 200 on the corresponding side. That is, the formwork 111 covers the tooth joint area, wherein in order to make the concrete surface molding appearance effect good, the formwork 111 can be an aluminum formwork, a steel formwork, etc. For the convenience of demoulding, a release agent is applied to the formwork 111. The length of the formwork 111 is greater than the tooth joint area, so that the formwork 111 fits on the wall 200 on the side, for example: the width of the formwork 111 can be greater than the cross-sectional size of the secondary structural column at the corner to be constructed by 100mm. In order to improve the reliability of the connection between the angle plate 112 and the template 111, the angle plate 112 can be connected to the first template 111 and the second template 111 respectively through a plurality of pins 113 or bolts distributed at intervals in the longitudinal direction, wherein the template 111 is provided with holes for the pins 113 or bolts to connect. The angle plate 112 is connected to the first and second templates 111 respectively through the pins 113 or bolts distributed at intervals in the longitudinal direction, and the interval between the pins 113 can be 300mm. In order to fix the corner of the external angle template assembly 110, the external angle template assembly 110 can also include a plurality of back ribs 114 arranged at intervals in the longitudinal direction on the outside of the first template 111 and the second template 111, wherein the back ribs 114 are connected at the external angle by diagonal bolts 115, wherein the length of the back ribs 114 is not less than the width of the template 111 on the side. In order to improve the fastening effect of the inclined bolts 111 and avoid damage or deformation of the back ribs 114, a reinforcing member 116 for connecting the inclined bolts 115 is provided on the back ribs 114. In order to prevent the external angle formwork assembly 110 from penetrating and leaking at the bottom, the lower ends of the first and second directional formworks 111, 111 are provided with bottom support plates 117. The bottom support plates 117 are connected to the first and second directional formworks 111 by bolts, wherein the bottom support plates 117 can be angle irons or square steels and other shaped steels. When the bottom support plates 117 are angle irons, one plate surface of the angle iron is connected to the formwork 111 by bolts, and the other plate surface serves as the bottom formwork and rests on the floor surface. In order to facilitate the concrete pouring construction of the secondary structural column 300 at the corner of the wall, the upper end of the first directional formwork 111 or the second directional formwork 111 is provided with a dustpan opening 118.

[0032] Please focus on Figure 3 In the formwork system 100 for secondary structural columns at the corners of walls provided by the embodiment of the present invention, a plurality of through holes 121 for the tension bolt assembly 130 to pass through are longitudinally arranged on each plate surface of the internal corner formwork 120. In order to facilitate the adjustment of the connection between the tension bolt assembly 130 and the internal corner formwork 120, the through holes 121 may be vertically distributed waist-shaped holes. The vertical length of the waist-shaped holes may be 100 mm.

[0033] Please focus on Figure 1 In the formwork system 100 for the secondary structural column at the corner of the wall provided by the embodiment of the present invention, the tension bolt assembly 130 includes but is not limited to a single-sided fastening screw 131 and a nut 133 threadedly connected at one end thereof and a sleeve 132 sleeved on the single-sided screw, and cannot be a double-sided fastening screw and a nut 133 threadedly connected at both ends thereof and a sleeve 132 sleeved on the double-sided fastening screw. When the formwork system 100 is dismantled, the sleeve 132 is not removed.

[0034] Please refer to Figure 1 to Figure 2 The embodiment of the present invention also provides a construction method of a secondary structural column at a wall corner, comprising:

[0035] Step 401, the secondary structural columns at the corners of the wall are supported by the formwork system 100 for the secondary structural columns at the corners of the wall. The formwork system can be assembled in blocks according to the height of the existing wall 200 at the construction site for phased construction.

[0036] Step 402, pouring concrete through the formwork system 100 to form the secondary structural column 300 of the reinforced concrete structure. Specifically, pouring concrete from top to bottom through the dustpan opening of the formwork system 100. In order to improve the construction quality of concrete, it can be poured and vibrated in layers to ensure that the concrete is densely filled and avoid the generation of air bubbles and other gaps.

[0037] The formwork system 100 and construction method for the secondary structural column 300 at the wall corner provided in the embodiment of the present invention, the formwork system 100 for the secondary structural column 300 at the wall corner is formed by the tension bolt assembly 130 that penetrates the tooth joint area and is connected between the inner corner formwork 120 and the outer corner formwork assembly 110 installed at the wall corner. It has finished splicing, high construction efficiency, and good reinforcement effect. It avoids damage to the existing wall structure caused by opening holes in the existing wall, does not affect the structural strength of the existing wall, avoids dust caused by opening holes, has the advantages of saving time and labor, reduces construction difficulty, and avoids environmental pollution. The secondary structural columns constructed by the formwork system 100 can improve the molding quality of concrete cast in the secondary structural columns.

[0038] The formwork system 100 and construction method for the secondary structural column 300 at the corner of the wall provided in the embodiment of the present invention are convenient to assemble and disassemble, can be continuously circulated and utilized, and have the advantages of being green and environmentally friendly.

[0039] The present invention is not limited to the above-mentioned specific implementation modes. Obviously, the above-mentioned embodiments are only some embodiments of the embodiments of the present invention, but not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention. Those skilled in the art can make other levels of modifications and changes to the present invention. In this way, if these modifications and changes of the present invention fall within the scope of the claims of the present invention, the present invention is also intended to include these changes and changes.

Claims

1. A formwork system for secondary structural columns at the corners of a wall, characterized in that: include: A positive corner formwork assembly installed at a wall corner, a negative corner formwork installed at a wall corner, and a tension bolt assembly passing through a tooth joint area at the wall corner and connected between the negative corner formwork and the positive corner formwork assembly.

2. The formwork system for secondary structural columns at the corners of a wall according to claim 1, characterized in that: The external angle formwork assembly includes a first directional formwork, a second directional formwork, and a connecting angle plate connecting the two into a whole. The first directional formwork and the second directional formwork have one end close to the wall that spans the tooth joint area and is attached to the wall on the corresponding side.

3. The formwork system for secondary structural columns at the corners of a wall according to claim 2, characterized in that: The connecting angle plate is respectively connected to the first and second directional templates through a plurality of pins or bolts distributed at intervals in the longitudinal direction.

4. The formwork system for secondary structural columns at the corners of a wall according to claim 3, characterized in that: The external angle formwork assembly also includes a plurality of back ribs longitudinally spaced apart and arranged outside the first and second front formworks, and the back ribs are connected at the external angles by diagonal bolts.

5. The formwork system for secondary structural columns at the corners of a wall according to claim 4, characterized in that: The back ribs are provided with reinforcement members for connection with the oblique bolts.

6. The formwork system for secondary structural columns at the corners of a wall according to claim 2, characterized in that: The lower ends of the first and second directional templates are both provided with bottom support plates.

7. The formwork system for secondary structural columns at the corners of a wall according to claim 2, characterized in that: The upper end of the first forward template or the second forward template is provided with a dustpan opening.

8. The formwork system for secondary structural columns at the corners of a wall according to claim 1, characterized in that: A plurality of through holes for the tension bolt assemblies to pass through are longitudinally spaced apart on each plate surface of the internal angle formwork.

9. The formwork system for secondary structural columns at the corners of a wall according to claim 8, characterized in that: The through holes are waist-shaped holes distributed vertically.

10. A construction method for secondary structural columns at the corners of a wall, characterized in that: include: Forming the secondary structural columns around the column reinforcements constructed at the wall corners in the construction wall according to the formwork system for secondary structural columns at the wall corners according to any one of claims 1 to 8; The secondary structural columns of the reinforced concrete structure are formed by pouring concrete through the formwork system.

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