House building shear wall formwork supporting structure and construction method

Abstract

The invention discloses a house building shear wall formwork supporting structure which comprises a bottom plate fixedly arranged at the bottom of a formwork, a plurality of oscillation assemblies are installed on the side face of the formwork and connected with one end of a supporting rod, the other end of the supporting rod is located in a supporting pipe, and the supporting rod is in sliding fit with the supporting pipe. The supporting rod is sleeved with a first buffer spring, the lower end of the first buffer spring is fixedly connected with the upper end of the supporting pipe, the upper end of the first buffer spring is fixedly connected with the supporting rod, and the lower end of the supporting pipe is connected with the fixing assembly. According to the house building shear wall formwork supporting structure, when concrete is poured into the formwork, the formwork moves outwards continuously, the impact of the concrete on the formwork during concrete pouring is effectively absorbed, the formwork vibrates continuously in the outward moving process, the concrete in the formwork vibrates continuously and synchronously, and therefore holes in the concrete are eliminated. The problems that in the pouring process, formwork explosion is prone to occurring, and holes are prone to occurring in concrete in the formwork are effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of building shear walls, and in particular to a building shear wall formwork support structure and a construction method. Background Art

[0002] Shear walls, also known as wind-resistant walls, earthquake-resistant walls or structural walls, are walls that can withstand both vertical loads on buildings and horizontal wind loads or earthquake loads. Its core functions include: Resisting lateral forces: Preventing buildings from shifting or overturning due to horizontal loads (such as earthquakes and strong winds), and it is a key structure for earthquake resistance in high-rise buildings. Enhancing overall stiffness: Improving the stability of the building structure and reducing deformation after being subjected to force. Also serving as a load-bearing function: Some shear walls and columns jointly support the upper weight of the building. Additional performance: Reinforced concrete shear walls also have good sound insulation and fireproofing effects, and are often used as partition walls. When designing shear walls, loads and failure risks: Shear walls have high in-plane stiffness and need to resist axial forces, shear forces, torques and bending moments at the same time. They may cause in-plane or out-of-plane buckling due to axial compression, or torsional buckling due to bending moments. These failure modes need to be avoided during design. Slenderness Ratio: A wall's slenderness ratio (the ratio of effective height to thickness or radius of gyration) determines its buckling resistance. Slender walls are susceptible to buckling, requiring safety calculations. Coupling: Adjacent shear walls can transfer shear forces across their interfaces, forming a "coupled system." This significantly increases overall bending stiffness and reduces shear deformation, making it more efficient than isolated arrangements.

[0003] According to the material composition, shear walls can be divided into:

[0004] Reinforced concrete shear wall: The most common type, constructed from steel bars and concrete, with excellent strength, rigidity, and seismic resistance. Steel-concrete shear wall: Constructed from concrete, steel sections are added to improve bearing capacity and ductility, making it suitable for high-rise or high-demand buildings. Steel plate shear wall: Made primarily of steel plates, it offers outstanding shear resistance and strong seismic resistance. Steel plate-concrete composite shear wall: Combines the shear resistance of steel plates with the compression and fire resistance of concrete. Masonry shear wall: Constructed from bricks and blocks, it has limited shear resistance and is mostly used in multi-story buildings, with weaker seismic performance.

[0005] According to the stress characteristics, shear walls can be divided into: Integral section shear wall: small or no opening, the stress is similar to that of an integral cantilever member. Small opening integral shear wall: the opening area does not exceed 15% of the wall, and the stress distribution deviates from the linear law. Joint shear wall: the opening is large, the wall limbs work independently, and are divided into double limbs (single row of openings) and multi-limbs (multiple rows of openings). Wall frame: large opening, narrow wall limbs, the stiffness of the connecting beam is close to the wall limbs, and the stress is similar to that of a frame structure. Frame-supported shear wall: a special shear wall with a frame on the bottom floor, used for structural force conversion (such as large space design on the bottom floor).

[0006] Shear walls play an important role in building structures. Therefore, the quality of shear walls must be guaranteed in the early stages of construction. Shear walls are usually constructed using a formwork casting method. For example, patent application number 202111110481.8 discloses a shear wall formwork system and a method for using the same. The shear wall formwork system includes: a shear wall tension formwork; a planar support member, at least parallel and spaced apart on one side of the shear wall tension formwork; and a plurality of verticality adjustment mechanisms, spaced apart between the shear wall tension formwork and the planar support member, for adjusting the verticality and displacement of the shear wall tension formwork. The present invention can adjust and correct the verticality and displacement of the shear wall tension formwork, and constrain and fix the shear wall tension formwork, thereby improving the construction quality of the shear wall and avoiding quality defects such as tilting and uneven thickness of the shear wall after construction.

[0007] Patent application number 202310049068.8 discloses a shear wall corner formwork reinforcement device, comprising a transverse shear wall and a longitudinal shear wall, a side formwork disposed outside the transverse shear wall and the longitudinal shear wall, and secondary keels and main keels disposed in sequence outside the side formwork; the side formwork is attached to the outer surface of the transverse shear wall and the longitudinal shear wall, the secondary keels are evenly distributed outside the side formwork, and the main keels and secondary keels form a staggered and stacked connection and are distributed outside the side formwork, and the side formwork has equidistant adjustment holes corresponding to the main keels and secondary keels; an L-shaped keel is disposed on the outside of the side formwork and corresponding to the inner corner of the transverse and longitudinal shear walls. The L-shaped keel is fixedly connected to the main keel, and a locking rod is provided between the main keel and the end of the longitudinal shear wall away from the transverse shear wall. During use, the present invention improves the structural strength of the shear wall, the installation and construction efficiency, and the verticality of the shear wall, thereby improving construction efficiency and facilitating construction quality assurance.

[0008] The above-mentioned shear wall formwork and similar formwork have the following problems when used: first, when pouring concrete, the formwork is subject to impact and is prone to bursting; second, when pouring, holes are easily formed in the concrete in the formwork, requiring secondary vibration. Summary of the Invention

[0009] The purpose of the present invention is to provide a building shear wall formwork support structure and a construction method to solve the above technical problems.

[0010] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0011] A building shear wall formwork support structure includes a base plate fixed at the bottom of the formwork, multiple oscillation components are installed on the side of the formwork, the oscillation component is connected to one end of the support rod, the other end of the support rod is located in a support tube, the support rod and the support tube are slidably matched, a first buffer spring is sleeved on the support rod, the lower end of the first buffer spring is fixedly connected to the upper end of the support tube, the upper end of the first buffer spring is fixedly connected to the support rod, and the lower end of the support tube is connected to the fixed component.

[0012] Preferably, the oscillation component includes two slide rails, the slide rails are fixed to the template, and a slider is slidably connected to the slide rails, a connecting block is provided between the two slide blocks, and a guide rod is provided on the left and right sides of the connecting block, the guide rod is fixed to the slider on the same side, a second buffer spring is sleeved on the guide rod, one end of the second buffer spring is fixed to the connecting block, and the other end of the second buffer spring is fixed to the limiting ring, the limiting ring is sleeved on the guide rod, and the limiting ring is fixed to the guide rod, an active impact cylinder is provided on the side of the connecting block close to the template, the active impact cylinder is fixed to the connecting block, a plurality of passive impact cylinders are longitudinally arranged between the two slide rails, the passive impact cylinder is fixed to the template, a connecting ball is movably embedded in the connecting block, and the connecting ball is fixed to the upper end of the support rod.

[0013] Preferably, an upper limit block is provided at the upper end of the slide rail, and the upper limit block is fixedly connected to the slide rail.

[0014] Preferably, a lower limit block is provided at the lower end of the slide rail, and the lower limit block is fixedly connected to the lower end of the slide rail.

[0015] Preferably, the left and right sides of the base plate are provided with sliding grooves, and an I-shaped positioning block is embedded in the sliding groove. The I-shaped positioning block slides with the base plate, and the end of the I-shaped positioning block close to the template is threadedly connected to the limiting screw, and the end of the I-shaped positioning block away from the template is penetrated by a plurality of first fixed rods, and the first fixed rods are threadedly connected to the I-shaped positioning block, and the first fixed rods are inserted into the ground.

[0016] Preferably, a scale is fixed on the bottom plate, and the scale is located on one side of the slide groove.

[0017] Preferably, the fixing assembly includes a connecting seat, which is fixedly connected to the bottom end of the support tube, and the support tube is connected to the support base through a hinge. A plurality of second fixing rods are provided through the support base, and the second fixing rods are threadedly connected to the support base, and the second fixing rods are inserted into the ground.

[0018] Preferably, the base plate is perpendicular to the template.

[0019] Preferably, the support rod and the support tube are of the same length.

[0020] The beneficial effects of the present invention are:

[0021] This invention designs a shear wall formwork support structure for building construction. As concrete is poured into the formwork, the formwork continuously moves outward, effectively absorbing the impact of concrete on the formwork during pouring. Furthermore, the formwork continuously vibrates during this movement, causing the concrete inside the formwork to vibrate synchronously, eliminating holes in the concrete. This effectively solves the problem of formwork explosion and holes in the concrete within the formwork during pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a building shear wall formwork support structure and construction method of the present invention;

[0023] Figure 2 The present invention is a building shear wall formwork support structure and construction method Figure 1 A magnified schematic diagram of part A;

[0024] Figure 3 The present invention is a building shear wall formwork support structure and construction method Figure 1 An enlarged schematic diagram of part B;

[0025] Figure 4 The present invention is a building shear wall formwork support structure and construction method Figure 1 An enlarged schematic diagram of part C;

[0026] Figure numerals: 1. upper limit block; 2. slide rail; 3. template; 4. base plate; 5. support tube; 6. first buffer spring; 7. support rod; 8. connecting block; 9. connecting ball; 10. second buffer spring; 11. guide rod; 12. limiting ring; 13. lower limit block; 14. slider; 15. active impact cylinder; 16. passive impact cylinder; 17. scale; 18. slide groove; 19. limiting screw; 20. I-shaped positioning block; 21. first fixed plug rod; 22. geotextile; 23. connecting seat; 24. support base; 25. second fixed plug rod; 26. hinge. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0030] Example 1

[0031] like Figure 1-4 As shown, a shear wall formwork support structure for building construction includes a base plate 4 fixed at the bottom of the formwork 3, the base plate 4 is perpendicular to the formwork 3, and multiple oscillation components are installed on the side of the formwork 3. The oscillation component is connected to one end of the support rod 7, and the other end of the support rod 7 is located in the support tube 5. The support rod 7 and the support tube 5 have the same length, and the support rod 7 and the support tube 5 are slidably matched. A first buffer spring 6 is sleeved on the support rod 7, and the lower end of the first buffer spring 6 is fixedly connected to the upper end of the support tube 5, the upper end of the first buffer spring 6 is fixedly connected to the support rod 7, and the lower end of the support tube 5 is connected to the fixed component.

[0032] Taking the casting of a 200 mm thick shear wall as an example, according to the shape of the shear wall, multiple templates 3 are placed in front and behind the shear wall, and the front and rear distance of the templates 3 is maintained at 150 mm. The adjacent templates 3 are connected, and the templates 3 at the edge are connected through geotextiles, so that the templates 3 and geotextiles 22 are enclosed into a closed space. When pouring concrete into the space enclosed by the templates 3, the concrete presses the template 3, causing the template 3 to continuously move outward and compress the first buffer spring 6 through the support rod 7, which has a buffering effect to avoid the mold from bursting due to excessive pressure. In addition, the template 3 continues to vibrate during the movement, causing the concrete in the template 3 to vibrate synchronously to eliminate the holes inside the concrete.

[0033] Example 2

[0034] like Figure 1-4As shown, in the case where other parts are the same as those in Example 1, the difference between this embodiment and Example 1 is that the oscillation component includes two slide rails 2, the slide rails 2 are fixedly connected to the template 3, a slider 14 is slidably connected to the slide rails 2, a connecting block 8 is provided between the two sliders 14, and a guide rod 11 is provided on both sides of the connecting block 8. The guide rod 11 is fixedly connected to the slider 14 on the same side, and a second buffer spring 10 is sleeved on the guide rod 11. One end of the second buffer spring 10 is fixedly connected to the connecting block 8, and the other end of the second buffer spring 10 is fixedly connected to the limiting ring 12. The limiting ring 12 sleeve It is arranged on the guide rod 11, the limit ring 12 is fixedly connected to the guide rod 11, and an active impact cylinder 15 is provided on the side of the connecting block 8 close to the template 3, and the active impact cylinder 15 is fixedly connected to the connecting block 8. A plurality of passive impact cylinders 16 are longitudinally arranged between the two slide rails 2, and the passive impact cylinder 16 is fixedly connected to the template 3. A connecting ball 9 is movably embedded on the connecting block 8, and the connecting ball 9 is fixedly connected to the upper end of the support rod 7. An upper limit block 1 is provided at the upper end of the slide rail 2, and the upper limit block 1 is fixedly connected to the slide rail 2. A lower limit block 13 is provided at the lower end of the slide rail 2, and the lower limit block 13 is fixedly connected to the lower end of the slide rail 2.

[0035] There are sliding grooves 18 on both sides of the bottom plate 4, and an I-shaped positioning block 20 is embedded in the sliding groove 18. The I-shaped positioning block 20 slides with the bottom plate 4. The end of the I-shaped positioning block 20 close to the template 3 is threadedly connected to the limiting screw 19. The end of the I-shaped positioning block 20 away from the template 3 is penetrated by a plurality of first fixed plug rods 21. The first fixed plug rods 21 are threadedly connected to the I-shaped positioning block 20 and inserted into the ground.

[0036] The fixing assembly includes a connecting seat 23, which is fixedly connected to the bottom end of the support tube 5. The support tube 5 is connected to the support base 24 through a hinge 26. A plurality of second fixing rods 25 are provided through the support base 24. The second fixing rods 25 are threadedly connected to the support base 24 and inserted into the ground.

[0037] Connect the first fixed rod 21 to the ground to fix the base plate 4 and the template 3 so that the base plate 4 and the template 3 can only slide forward and backward. Then connect the second fixed rod 25 to the ground to fix the support tube 5 and the support rod 7. Figure 3 As shown, the limiting screw 19 is rotated so that the distance between the left end of the limiting screw 19 and the left end of the slide groove 18 is 25 mm.

[0038] Taking the casting of a 200 mm thick shear wall as an example, the front and rear distance of the template 3 is first maintained at 150 mm, and then concrete is poured into the space enclosed by the template 3. As the volume of concrete in the template 3 increases, the template 3 presses the template 3 to move the template 3 outward. The template 3 continuously presses down the support rod 7 through the passive impact cylinder 16, the active impact cylinder 15, the connecting block 8, and the connecting ball 9 in sequence, so that the support rod 7 compresses the first buffer spring 6 to accumulate force.

[0039] As the first buffer spring 6 continues to be compressed, the interaction force between the active impact cylinder 15 and the passive impact cylinder 16 becomes larger and larger, causing the active impact cylinder 15 to start driving the connecting block 8 to move right along the guide rod 11 to compress the second buffer spring 10, and finally causing the active impact cylinder 15 to disengage from the passive impact cylinder 16. After disengagement, under the elastic force of the first buffer spring 6, the active impact cylinder 15 contacts and collides with the passive impact cylinder 16 above the passive impact cylinder 16, causing the formwork 3 to vibrate, and the concrete in the formwork 3 to vibrate synchronously to eliminate the holes inside the concrete.

[0040] In this way, as the template 3 and the base plate 4 continue to move outward, the active impact cylinder 15 continuously impacts the passive impact cylinder 16, causing the concrete in the template 3 to continuously vibrate, thereby eliminating the holes in the concrete. It can also effectively absorb the impact of the concrete on the template 3 during pouring.

[0041] When the bottom plate 4 contacts the limiting screw 19, the bottom plate 4 and the template 3 stop moving. At this time, the templates 3 on the front and rear sides each move 25 mm. At this time, the distance between the front and rear templates 3 is 200 mm, and the pouring of the 200 mm concrete shear wall is completed.

[0042] Example 3

[0043] like Figure 1-4 As shown, while other parts are the same as those of Example 2, the difference between this embodiment and Example 2 is that a scale 17 is fixed on the bottom plate 4 and is located on one side of the chute 18. By setting the scale 17, the distance between the left end of the limit screw 19 and the left end of the chute 18 can be quickly read.

[0044] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A building shear wall formwork support structure, characterized by: The invention comprises a base plate (4) fixed on the bottom of the template (3), a plurality of oscillation components are installed on the side of the template (3), the oscillation component is connected to one end of the support rod (7), the other end of the support rod (7) is located in the support tube (5), the support rod (7) and the support tube (5) are slidably matched, a first buffer spring (6) is sleeved on the support rod (7), the lower end of the first buffer spring (6) is fixed to the upper end of the support tube (5), the upper end of the first buffer spring (6) is fixed to the support rod (7), and the lower end of the support tube (5) is connected to the fixed component.

2. A building shear wall formwork support structure according to claim 1, characterized in that: The oscillation component comprises two slide rails (2), the slide rails (2) are fixedly connected to the template (3), a slider (14) is slidably connected to the slide rails (2), a connecting block (8) is provided between the two sliders (14), a guide rod (11) is provided on both the left and right sides of the connecting block (8), the guide rod (11) is fixedly connected to the slider (14) on the same side, a second buffer spring (10) is sleeved on the guide rod (11), one end of the second buffer spring (10) is fixedly connected to the connecting block (8), and the other end of the second buffer spring (10) is fixedly connected to the limit ring (1 2) fixed connection, the limiting ring (12) is sleeved on the guide rod (11), the limiting ring (12) is fixed to the guide rod (11), an active impact cylinder (15) is provided on the side of the connecting block (8) close to the template (3), the active impact cylinder (15) is fixed to the connecting block (8), a plurality of passive impact cylinders (16) are longitudinally provided between the two slide rails (2), the passive impact cylinder (16) is fixed to the template (3), a connecting ball (9) is movably embedded on the connecting block (8), and the connecting ball (9) is fixed to the upper end of the support rod (7).

3. A building shear wall formwork support structure according to claim 2, characterized in that: An upper limit block (1) is provided at the upper end of the slide rail (2), and the upper limit block (1) is fixedly connected to the slide rail (2).

4. A building shear wall formwork support structure according to claim 3, characterized in that: A lower limit block (13) is provided at the lower end of the slide rail (2), and the lower limit block (13) is fixedly connected to the lower end of the slide rail (2).

5. The building shear wall formwork support structure according to claim 4, characterized in that: The bottom plate (4) is provided with a slide groove (18) on both the left and right sides, and an I-shaped positioning block (20) is embedded in the slide groove (18). The I-shaped positioning block (20) is slidably matched with the bottom plate (4). The end of the I-shaped positioning block (20) close to the template (3) is threadedly connected to the limiting screw (19), and the end of the I-shaped positioning block (20) away from the template (3) is penetrated by a plurality of first fixed insertion rods (21), the first fixed insertion rods (21) are threadedly connected to the I-shaped positioning block (20), and the first fixed insertion rods (21) are inserted into the ground.

6. A building shear wall formwork support structure according to claim 5, characterized in that: A scale (17) is fixedly provided on the bottom plate (4), and the scale (17) is located on one side of the slide groove (18).

7. The building shear wall formwork support structure according to claim 6, characterized in that: The fixing assembly includes a connecting seat (23), the connecting seat (23) is fixedly connected to the bottom end of the support tube (5), the support tube (5) is connected to the support base (24) through a hinge (26), a plurality of second fixing rods (25) are provided through the support base (24), the second fixing rods (25) are threadedly connected to the support base (24), and the second fixing rods (25) are inserted into the ground.

8. The building shear wall formwork support structure according to claim 7, characterized in that: The bottom plate (4) is perpendicular to the template (3).

9. The building shear wall formwork support structure according to claim 8, characterized in that: The support rod (7) and the support tube (5) have the same length.

10. The construction method of the building shear wall formwork support structure according to claim 9, characterized in that: The method comprises placing a plurality of templates (3) before and after the shear wall according to the shape of the shear wall, wherein the distance between the templates (3) is less than the thickness of the shear wall, connecting adjacent templates (3), and connecting the templates (3) at the edge through a geotextile, so that the templates (3) and the geotextile (22) enclose a closed space. When pouring concrete into the space enclosed by the templates (3), the concrete presses the template (3) so that the template (3) continuously moves outwards, thereby compressing the first buffer spring (6) through the support rod (7), achieving a buffering effect, avoiding the template from exploding due to excessive pressure, and the template (3) continuously vibrates during the movement, so that the concrete in the template (3) vibrates synchronously, thereby eliminating holes in the concrete.

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