Concrete pouring formwork system of interlayer joint part and construction method

Abstract

The invention provides a concrete pouring formwork system and construction method for an interlayer joint part, the formwork system comprises a first formwork, a second formwork, a Z-shaped piece and an embedded fastener, the first formwork and the second formwork are correspondingly arranged, and the bottom end of the first formwork is lower than the bottom end of the second formwork; the Z-shaped part is partially located below the first formwork, the bottom end of the Z-shaped part is fixed by the embedded fastener, and the side face of the top end of the Z-shaped part abuts against the side face of the first formwork. The bottom end of the first formwork is supported through the Z-shaped piece, and the side face of the first formwork abuts against the Z-shaped piece, so that concrete slurry can be prevented from overflowing from a gap between the first formwork and the side face of a lower-layer wall body when upper-layer concrete is poured, and the problems of attractiveness and structural stability such as pitted surfaces and slurry leakage are avoided; the problems of construction progress delay, increase of engineering consumables, increase of labor cost and the like caused by secondary treatment or repair are avoided; and the formwork system is convenient to mount and dismount, and the construction efficiency can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a concrete pouring template system for inter-layer joints and a construction method. Background Art

[0002] During the construction of the main structure of a building project, inadequate concrete treatment at the joints of floors can easily lead to appearance defects, such as leakage, honeycombed surfaces, root rot, misalignment, water seepage, etc., which often cause hidden dangers to project quality and complaints from owners.

[0003] At present, the reinforcement method adopted for the concrete casting formwork at the joints of floors is: by moving the formwork of the upper structure downward, using reserved tension screws or buried three-stage screws for reinforcement. This method requires reinforcing the above-mentioned downward-moved formwork on the already poured concrete wall, but the reinforcement effect is difficult to control, the operation is relatively troublesome, and it is easy to cause quality problems in the joints due to improper operation. Summary of the invention

[0004] The object of the present invention is to provide a concrete pouring formwork system and a construction method for inter-layer joints to solve the problems in the above background.

[0005] The technical solution adopted by the present invention is: a concrete pouring formwork system for inter-layer joints, which includes: a first formwork, a second formwork, a Z-shaped member and embedded fasteners, the first formwork and the second formwork are arranged correspondingly, and the bottom end of the first formwork is lower than the bottom end of the second formwork; the Z-shaped member is partially located below the first formwork, the bottom end is fixed by the embedded fasteners, and the top side is pressed against the side of the first formwork.

[0006] Furthermore, the Z-shaped member includes a first section, a second section and a third section which are connected in sequence, the first section is pressed against the side of the first template, the second section is used to support the first template, and the third section is connected to the embedded fastener.

[0007] Furthermore, the first section is perpendicular to the second section, and the third section is perpendicular to the second section.

[0008] Furthermore, the embedded fastener includes an embedded threaded sleeve, a high-strength bolt and a buffer gasket. The embedded threaded sleeve is horizontally arranged, and the high-strength bolt sequentially penetrates the buffer gasket and the third section to connect the embedded threaded sleeve.

[0009] Furthermore, a sealing gasket is provided on the first template, and the sealing gasket is located between the first template and the second template, and a top end of the sealing gasket is flush with or lower than a bottom end of the second template.

[0010] Furthermore, a wedge pin is provided between the top side surface of the Z-shaped member and the first template, and two side surfaces of the wedge pin are respectively pressed against the Z-shaped member and the first template.

[0011] Furthermore, the wedge pin includes a first wedge pin and a second wedge pin, a vertical reinforcing back rib is provided between the first wedge pin and the first template, a transverse reinforcing back rib is provided between the second wedge pin and the first template, and the vertical reinforcing back rib and the transverse reinforcing back rib are respectively fixedly connected to the first template.

[0012] Furthermore, there are several groups of Z-shaped members evenly distributed along the extension direction of the transverse reinforcing back ribs, and the several groups of Z-shaped members are respectively connected to different vertical reinforcing back ribs, and the number of the vertical reinforcing back ribs is greater than or equal to the number of the Z-shaped members.

[0013] Furthermore, the first template and the second template are connected by a plurality of groups of tension bolts, and the tension bolts are located above the Z-shaped member.

[0014] The technical solution of the present invention also includes: a method for constructing a concrete pouring formwork system at the interlayer joint position using the above-mentioned method, which includes the steps of:

[0015] Embed the embedded fasteners in the lower concrete structure;

[0016] Connect and tighten the Z-shaped piece to the embedded fasteners, and place the sealing gasket on the outer surface of the lower concrete structure;

[0017] A first template and a second template are supported, vertical reinforcing back ribs and transverse reinforcing back ribs are constructed on the side of the first template, the vertical reinforcing back ribs and the Z-shaped members are pressed tightly with a first wedge, and the transverse reinforcing back ribs are pressed tightly with a second wedge.

[0018] The beneficial effects of the present invention are as follows: by supporting the bottom end of the first template and pressing the side thereof with a Z-shaped member, the portion of the bottom end of the first template that extends beyond the second template can be pressed against the side of the lower wall, thereby reducing the gap and preventing the concrete slurry from overflowing from the gap between the first template and the side of the lower wall when pouring the upper concrete layer, thereby preventing the occurrence of aesthetic and structural stability problems such as rough surfaces and leakage of slurry, and avoiding problems such as delays in construction progress, increased engineering consumables, and increased labor costs caused by secondary treatment or repair; and the present template system is easy to install and disassemble, which can effectively improve construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a side view of an embodiment of the present invention;

[0020] Figure 2 It is a front cross-sectional view of an embodiment of the present invention.

[0021] In the figure:

[0022] 1. The first template;

[0023] 2. Second template;

[0024] 3. Tension bolts;

[0025] 4. Z-shaped member; 41. first section; 42. second section; 43. third section;

[0026] 5. Embedded fasteners; 51. Embedded screw sleeves; 52. High-strength bolts; 53. Buffer gaskets;

[0027] 6. Vertical reinforcement of back ribs;

[0028] 7. Horizontally reinforce the back rib;

[0029] 8. First wedge pin;

[0030] 9. Second wedge pin;

[0031] 10. Sealing gasket. DETAILED DESCRIPTION

[0032] The technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0033] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0034] Reference Figure 1-2The present invention provides a concrete pouring formwork system for interlayer joints, which includes: a first formwork 1, a second formwork 2, tension bolts 3, a Z-shaped member 4 and embedded fasteners 5. The first formwork 1 and the second formwork 2 are arranged correspondingly and connected and fastened by multiple groups of tension bolts 3. The bottom end of the first formwork 1 is lower than the bottom end of the second formwork 2, and the bottom end of the second formwork 2 abuts on the top surface of the lower floor slab. The side of the first formwork 1 facing the second formwork 2 abuts on the side of the lower wall. A part of the Z-shaped member 4 is located below the first formwork 1, and the bottom end is fixed to the side of the lower wall by the embedded fasteners 5, and the top side abuts against the side of the first formwork 1.

[0035] By adopting the above technical solution, the bottom end of the first formwork 1 is supported and the side is pressed by the Z-shaped member 4, so that the part of the bottom end of the first formwork 1 that exceeds the second formwork 2 can be pressed against the side of the lower wall, thereby reducing the gap and preventing the concrete slurry from overflowing from the gap between the first formwork 1 and the side of the lower wall when pouring the upper concrete, thereby avoiding the occurrence of aesthetic and structural stability problems such as rough surface and leakage, and avoiding secondary processing or repair that leads to delays in construction progress, increased engineering consumables, and increased labor costs.

[0036] Reference Figure 2 The Z-shaped member 4 includes a first section 41, a second section 42 and a third section 43 which are connected in sequence. The first section 41 is pressed against the side of the first template 1, the second section 42 is located at the bottom of the first template 1 and is used to support the first template 1. The third section 43 is connected to the embedded fastener 5.

[0037] In order to improve the fixing effect and improve the fit between the Z-shaped member 4 and the first formwork 1 and the side of the lower wall, the structure of the Z-shaped member 4 in this embodiment is configured as follows: the first section 41 is perpendicular to the second section 42, and the third section 43 is perpendicular to the second section 42. In this way, the first section 41 is parallel to the side of the first formwork 1, the second section 42 is parallel to the bottom surface of the first formwork 1, and the third section 43 is parallel to the side of the lower wall, which can further improve the fastening effect of the first formwork 1 and improve the project quality.

[0038] Reference Figure 2 The embedded fastener 5 includes an embedded screw sleeve 51, a high-strength bolt 52 and a buffer gasket 53. The embedded screw sleeve 51 is horizontally arranged and pre-embedded in the lower wall, with its opening facing the outer side of the lower wall to facilitate the installation of the high-strength bolt 52. During construction, the third section 43 in the Z-shaped member 4 is pressed against the outer side of the lower wall, and a hole is drilled in the third section 43 to facilitate the installation of the high-strength bolt 52. Then, the high-strength bolt 52 is passed through the buffer gasket 53 and the third section 43 in sequence, and then the embedded screw sleeve 51 is connected.

[0039] The above-mentioned embedded fastener 5 is easy to install and disassemble. The radial dimension of the embedded screw sleeve 51 is small, and high-strength steel material can be used, which will not affect the structural quality of the lower wall. After the Z-shaped member 4 is removed, the high-strength bolt 52 can continue to be filled in the embedded screw sleeve 51, or concrete can be filled in the embedded screw sleeve 51 to make the side of the lower wall smooth, so that the aesthetics of the lower wall will not be affected.

[0040] In order to further improve the sealing effect and prevent leakage and overflow of slurry, the present embodiment also constructs a sealing gasket 10 on the first template 1. The sealing gasket 10 is located between the first template 1 and the second template 2, and its top end is flush with or lower than the bottom end of the second template 2. It is used to fill the gap between the side of the first template 1 and the side of the lower wall to ensure the casting quality.

[0041] In order to further improve the stability of the system and ensure the casting quality, in this embodiment, vertical reinforcement back ribs 6 and transverse reinforcement back ribs 7 are arranged on the outer side of the first template 1. The vertical reinforcement back ribs 6 are distributed in a plurality of groups along the extension direction of the transverse reinforcement back ribs 7, and wedge pins are respectively arranged between the Z-shaped member 4 and the vertical reinforcement back ribs 6 and between the Z-shaped member 4 and the transverse reinforcement back ribs 7. The first wedge pin 8 is located between the Z-shaped member 4 and the vertical reinforcement back ribs 6, and the two side surfaces of the first wedge pin 8 are respectively pressed against the Z-shaped member 4. and the vertical reinforcing back rib 6. The second wedge pin 9 is located between the Z-shaped part 4 and the transverse reinforcing back rib 7. The two side surfaces of the second wedge pin 9 respectively press against the Z-shaped part 4 and the transverse reinforcing back rib 7. The first wedge pin 8 and the second wedge pin 9 are independent of each other to adapt to the different thicknesses of the vertical reinforcing back rib 6 and the transverse reinforcing back rib 7. Because when the thicknesses of the vertical reinforcing back rib 6 and the transverse reinforcing back rib 7 are inconsistent, the gap widths between them and the Z-shaped part 4 are also inconsistent, and wedge pins of different sizes are required for filling, pressing and reinforcement.

[0042] In this embodiment, the number of Z-shaped parts 4 can be adaptively adjusted according to different construction requirements. During implementation, several groups of Z-shaped parts 4 are evenly arranged along the extension direction of the transverse reinforcing back ribs 7 to improve the reinforcement effect, wherein several groups of Z-shaped parts 4 are respectively connected to different vertical reinforcing back ribs 6, and the number of vertical reinforcing back ribs 6 should not be less than the number of Z-shaped parts 4.

[0043] When the above formwork system is used for construction, the steps include:

[0044] (1) Before pouring the lower wall, the embedded screw sleeve 51 is pre-buried at the designated position below the joint. After the concrete pouring of the lower structure is completed and meets the strength requirements, the casting template of the lower structure is removed and the embedded screw sleeve 51 is inspected and cleaned.

[0045] (2) Install the Z-shaped member 4 , place the third section 43 close to the outer side of the lower wall, and fix it with high-strength bolts 52 and embedded screw sleeves 51 .

[0046] (3) A sealing pad 10 is pasted on the top side of the lower wall.

[0047] (4) After the installation of the upper structure reinforcement project is completed, the first formwork 1 and the second formwork 2 are installed, and the first formwork 1 is dropped onto the second section 42 of the Z-shaped member 4 so that the second section 42 provides support for the first formwork 1.

[0048] (5) Install the vertical reinforcing back ribs 6 and the transverse reinforcing back ribs 7 on the first template 1 in sequence, and use the first wedge and the second wedge to fill the gaps between the vertical reinforcing back ribs 6 and the first section 41, and the gaps between the transverse reinforcing back ribs 7 and the first section 41, respectively, to fix them.

[0049] (6) Install the tension screws to connect and fix the first template 1 and the second template 2.

[0050] (7) After the formwork is accepted, the concrete of the superstructure is poured. When the concrete strength reaches the required level, the formwork system is dismantled for reuse.

[0051] Compared with the prior art, the beneficial effects of the present invention are as follows: by supporting the bottom end of the first formwork 1 and pressing the side thereof with the Z-shaped member 4, the portion of the bottom end of the first formwork 1 that extends beyond the second formwork 2 can be pressed against the side of the lower wall, thereby reducing the gap and preventing the concrete slurry from overflowing from the gap between the first formwork 1 and the side of the lower wall when pouring the upper concrete, thereby preventing the occurrence of aesthetic and structural stability problems such as rough surfaces and leakage of slurry, and avoiding problems such as delays in construction progress, increased engineering consumables, and increased labor costs caused by secondary treatment or repair; and the present formwork system is easy to install and disassemble, which can effectively improve construction efficiency.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0053] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A concrete pouring formwork system for interlayer joints, characterized in that: include: A first template, a second template, a Z-shaped member and embedded fasteners, wherein the first template is arranged corresponding to the second template, and the bottom end of the first template is lower than the bottom end of the second template; the Z-shaped member is partially located below the first template, the bottom end is fixed by the embedded fasteners, and the top side is pressed against the side of the first template.

2. The concrete pouring formwork system for inter-layer joints according to claim 1 is characterized in that: The Z-shaped member includes a first section, a second section and a third section which are connected in sequence, the first section is pressed against the side of the first template, the second section is used to support the first template, and the third section is connected to the embedded fastener.

3. The concrete pouring formwork system for inter-layer joints according to claim 2 is characterized in that: The first section is perpendicular to the second section, and the third section is perpendicular to the second section.

4. The concrete pouring formwork system for interlayer joints according to claim 2 or 3, characterized in that: The embedded fastener comprises an embedded thread sleeve, a high-strength bolt and a buffer gasket. The embedded thread sleeve is arranged horizontally. The high-strength bolt sequentially penetrates the buffer gasket and the third section to connect the embedded thread sleeve.

5. The concrete pouring formwork system for inter-layer joints according to claim 4 is characterized in that: A sealing gasket is provided on the first template, and the sealing gasket is located between the first template and the second template, with a top end of the sealing gasket flush with or lower than a bottom end of the second template.

6. The concrete pouring formwork system for the interlayer joint according to any one of claims 1 to 3 and 5, characterized in that: A wedge pin is provided between the top side surface of the Z-shaped member and the first template, and the two side surfaces of the wedge pin are respectively pressed against the Z-shaped member and the first template.

7. The concrete pouring formwork system for inter-layer joints according to claim 6 is characterized in that: The wedge pin includes a first wedge pin and a second wedge pin. A vertical reinforcing back rib is provided between the first wedge pin and the first template, and a transverse reinforcing back rib is provided between the second wedge pin and the first template. The vertical reinforcing back rib and the transverse reinforcing back rib are respectively fixedly connected to the first template.

8. The concrete pouring formwork system for inter-layer joints according to claim 7, characterized in that: Several groups of Z-shaped members are evenly distributed along the extension direction of the transverse reinforcing back ribs, and several groups of Z-shaped members are respectively connected to different vertical reinforcing back ribs, and the number of the vertical reinforcing back ribs is greater than or equal to the number of the Z-shaped members.

9. The concrete pouring formwork system for the interlayer joint according to any one of claims 1-3, 5, 7-8, characterized in that: The first template and the second template are connected by a plurality of groups of tension bolts, and the tension bolts are located above the Z-shaped member.

10. A method for constructing a concrete pouring formwork system at an interlayer joint portion using the method of claim 9, characterized in that: Includes steps: Embed the embedded fasteners in the lower concrete structure; Connect and tighten the Z-shaped piece to the embedded fasteners, and place the sealing gasket on the outer surface of the lower concrete structure; A first template and a second template are supported, vertical reinforcing back ribs and transverse reinforcing back ribs are constructed on the side of the first template, the vertical reinforcing back ribs and the Z-shaped members are pressed tightly with a first wedge, and the transverse reinforcing back ribs are pressed tightly with a second wedge.

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