Construction method of complex special-shaped curved surface reinforced concrete shear wall

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By using wooden formwork, spiral pairing poles, simple tie-up devices, cast-in-place stair support systems and cantilever frames in the construction of complex special-shaped curved reinforced concrete shear walls, the difficulty of supporting formwork and formwork reinforcement in curved shear walls is solved, the construction quality and safety are improved, and the construction difficulty is reduced.

CN119686526APending Publication Date: 2025-03-25CONSTR & INSTALLATION ENG THE THIRD ENG GROUP OF CHINA RAILWAY +1

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Patent Information

Application Number: CN202411690215.0
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2024-11-25
Publication Date: 2025-03-25

AI Technical Summary

Technical Problem

Complex and special-shaped curved reinforced concrete shear walls face difficulties in supporting formwork, difficult form reinforcement and difficult curved beam formwork reinforcement during construction, resulting in high construction difficulty, low quality and high safety risks.

Method used

Wooden formwork is used to support curved shear walls, and spirals are used to reinforce the struts on the inside; simple tie-up devices are used when the curved beams are constructed; cast-in-place stair support system and cantilever frames are used to support the shaped formwork to improve construction efficiency and quality.

Benefits of technology

Through these measures, the problem of difficult support of curved shear walls in narrow spaces has been solved, the construction progress and quality have been improved, and construction safety risks have been reduced.

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Abstract

The invention relates to a construction method of a complex special-shaped curved surface reinforced concrete shear wall, a supporting system is formed by combining Y-shaped movable supporting unit frames, connecting cross rods, movable discs and the like, the problem that a supporting system is difficult to erect in a narrow space is solved, and the construction progress is accelerated; the formwork system is formed by combining spiral telescopic opposite supporting rods, concave positioning covers, lug plate inclined supporting pieces and the like and has the advantages that positioning is accurate, and the shear wall is attractive after being poured and formed, and the construction quality is improved; the cross beam formwork system is formed by combining the Z-shaped bracket, the opposite pull rod, the wood formwork, the jacking and the like, and has the advantages of being convenient to install, high in construction speed and the like.

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Description

Technical Field

[0001] The invention belongs to the field of house construction, and in particular relates to a construction method of a complex special-shaped curved reinforced concrete shear wall. Background Art

[0002] Shear walls are also called wind-resistant walls, earthquake-resistant walls or structural walls. They are walls that bear horizontal loads and vertical loads (gravity) caused by wind loads or earthquakes. Such walls are usually located in the staircases or elevator shafts of a building and are vertical straight reinforced concrete structures. During construction, the construction and reinforcement of the vertical straight reinforced concrete shear wall structure formwork is a conventional reinforcement mode of secondary and main ribs on the outside of a wooden or steel formwork.

[0003] The following difficulties will be encountered in the construction of complex and irregular curved reinforced concrete shear walls: 1) How to support the shear wall in the narrow area near the curved shear wall stairs; 2) How to reinforce the curved shear wall formwork; 3) How to reinforce the curved beam formwork, how to reduce the construction difficulty and improve the construction quality.

[0004] In view of this, in order to address a series of problems arising during the construction of special-shaped curved reinforced concrete shear walls, it is urgent to invent a simple and effective construction system for complex special-shaped curved reinforced concrete shear walls to improve the construction quality of curved reinforced concrete shear walls, reduce construction safety risks, and speed up construction progress. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a construction method for a complex special-shaped curved reinforced concrete shear wall.

[0006] The construction method of the complex special-shaped curved reinforced concrete shear wall comprises the following steps:

[0007] S1. The curved shear wall formwork is made of wooden formwork, and the inner side of the curved shear wall is reinforced with spiral braces;

[0008] S2. Use a simple tie device to construct a curved beam on the top of the curved shear wall;

[0009] S3, staircase construction: a cast-in-place staircase support system is used outside the curved shear wall to support the staircase's shaped formwork and cast the staircase;

[0010] S4. Use cantilever frames to support standardized formwork and construct shear walls.

[0011] Preferably, in step S1: the curved shear wall formwork is supported by wooden formwork, expansion sponges are arranged between the wooden formworks, sealing plates are arranged on the outside of the formwork seams, the sealing plates and the wooden formworks are fixed by fixing clamps, the inner side of the small-spacing curved shear wall is reinforced by spiral pair of struts, the spiral pair of struts are tightened to reinforce the ribs, a concave positioning cover is arranged on the top of the curved shear wall, the outer side of the curved shear wall is fixed by diagonal braces, and ear plate diagonal braces are arranged between the diagonal braces and the formwork.

[0012] Preferably, in step S2: the curved cross beam is constructed by using a simple anchoring device, the simple anchoring device comprises a Z-shaped bracket, a tie rod and a top support, and the Z-shaped bracket is connected to the curved shear wall.

[0013] Preferably, in step S3: a building is arranged outside the curved shear wall, and a cast-in-place staircase support system is adopted during staircase construction, the cast-in-place staircase support system comprises a Y-shaped movable support unit frame and a connecting cross bar, a standardized template is arranged on the cast-in-place staircase support system, the Y-shaped movable support unit frame comprises a movable disc, rolling wheels, a Y-shaped rod, a telescopic rod and a sleeve, a reserved hole is arranged on the sleeve, the connecting cross bar passes through the sleeve to connect the Y-shaped movable support unit frame together, a plurality of rolling wheels are arranged on the movable disc, and the positioning of the standardized template is achieved by adjusting the telescopic rod.

[0014] Preferably, a cantilever frame is used to support the standardized formwork during shear wall construction. The cantilever frame includes a cross bar, fasteners, vertical bars and pull ropes. Embedded angle steels are arranged on the shear wall. One side of the cross bar is arranged on the angle steel, and the other side is stressed by the pull rope. A support rod is arranged at the bottom of the cross bar. The vertical bar is passed through the cross bar through a movable sleeve. The vertical bar and the cross bar are fastened by fasteners, and a fixator is arranged on the fastener.

[0015] Preferably, in step S4, a winch is arranged on the floor, a suspension rod is extended on the floor, and a pull rope is arranged to be connected to the winch.

[0016] A complex and irregular curved reinforced concrete shear wall is obtained by any of the above methods.

[0017] The beneficial effects of the present invention are:

[0018] 1) The present invention has developed a support system for stairs adjacent to a curved shear wall. The support system is composed of a Y-shaped movable support unit frame, a connecting cross bar, a movable disc, etc., which solves the problem of difficulty in setting up a support system in a narrow space and speeds up the construction progress.

[0019] 2) The present invention has developed a curved shear wall formwork system, which is composed of a combination of spiral telescopic braces, concave positioning covers, ear plate diagonal braces, etc. It has the characteristics of precise positioning and beautiful shear wall casting and forming, thereby improving the construction quality.

[0020] 3) The present invention has developed a curved beam formwork system, which is composed of a Z-shaped bracket, a tie rod, a wooden formwork, a top support, etc., and has the advantages of easy installation and fast construction speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the curved shear wall structure of the present invention;

[0022] Figure 2 It is a three-dimensional schematic diagram of the construction of the adjacent stair formwork;

[0023] Figure 3 It is a schematic diagram of a Y-shaped movable support unit frame;

[0024] Figure 4 This is a schematic diagram of cantilever staircase construction;

[0025] Figure 5 It is a three-dimensional schematic diagram of the fastener;

[0026] Figure 6 It is the plan view of the winch layout;

[0027] Figure 7 It is a three-dimensional schematic diagram of the curved shear wall formwork reinforcement;

[0028] Figure 8 It is a schematic diagram of the joints of the curved shear wall formwork;

[0029] Fig. 9 It is a schematic diagram of the reinforcement of small-spacing curved shear walls;

[0030] Fig.10 It is the construction drawing of the curved beam;

[0031] Among them: 1-stairs, 2-curved beams, 3-cast-in-place columns, 4-curved shear walls, 5-Y-shaped movable support unit frames, 6-cast-in-place stair support systems, 7-connecting crossbars, 8-moving discs, 9-stereotyped templates, 10-rolling wheels, 11-Y-shaped rods, 12-telescopic rods, 13-sleeves, 14-reserved holes, 15-wooden templates, 16-template seams, 17-fixed splints, 18-sealing plates, 19-expansion sponges, 20-bolts, 21-top Support, 22-tie rod, 23-simple fixing device, 24-Z-shaped bracket, 25-embedded angle steel, 26-strut, 27-shear wall, 28-vertical rod, 29-pull rope, 30-cross bar, 31-fastener, 32-consolidator, 33-movable sleeve, 34-winch, 35-suspender rod, 36-reinforcement rib, 37-spiral pair of struts, 38-concave positioning cover, 39-ear plate diagonal brace, 40-cantilever frame, 41-diagonal brace, 42-floor. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with embodiments. The description of the following embodiments is only used to help understand the present invention. It should be noted that for ordinary persons in the art, without departing from the principle of the present invention, the present invention can also be modified in some ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0033] Embodiment 1

[0034] As an embodiment, the construction method of the complex special-shaped curved reinforced concrete shear wall comprises the following steps:

[0035] Step 1, curved shear wall construction; the curved shear wall 4 is supported by wooden formwork 15, expansion sponges 19 are arranged between the wooden formworks 15, sealing plates 18 are arranged on the outside of the formwork seams 16, the sealing plates 18 and the wooden formworks 15 are fixed by fixing clamps 17, the inner side of the small-spacing curved shear wall 4 is reinforced by spiral pair struts 37, the spiral pair struts 37 tighten the reinforcing ribs 36, a concave positioning cover 38 is arranged on the top of the curved shear wall 4, the outer side of the curved shear wall 4 is fixed by diagonal braces 41, and ear plate diagonal brace pieces 39 are arranged between the diagonal braces 41 and the formwork.

[0036] Step 2, curved beam construction; the curved cross beam 2 is constructed using a simple tie device 23, which is composed of a Z-shaped bracket 24, a tie rod 22, a top support 21, etc. The Z-shaped bracket 24 is connected to the curved shear wall 4.

[0037] Step three, staircase construction; a building 1 is arranged outside the curved shear wall 4, and a cast-in-place staircase support system 6 is adopted during the construction of the staircase 1. The cast-in-place staircase support system 6 is composed of a Y-shaped movable support unit frame 5 and a connecting cross bar 7. A standardized template 9 is arranged on the cast-in-place staircase support system 6. The Y-shaped movable support unit frame 5 is composed of a movable disc 8, a rolling wheel 10, a Y-shaped rod 11, a telescopic rod 12, a sleeve 13, etc. A reserved hole 14 is arranged on the sleeve 13, and the connecting cross bar 7 passes through the sleeve 13 to connect the Y-shaped movable support unit frame 5 together. A plurality of rolling wheels 10 are arranged on the movable disc 8, and the positioning of the standardized template 9 is achieved by adjusting the telescopic rod.

[0038] Step 4: During the construction of the shear wall 27, a cantilever frame 40 is used to support the shaped formwork 9. The cantilever frame 40 is composed of a cross bar 30, a fastener 31, a vertical bar 28, a pull rope 29, etc. An embedded angle steel 25 is arranged on the shear wall 27. One side of the cross bar 30 is arranged on the angle steel 25, and the other side is stressed by the pull rope 29. A support rod 26 is arranged at the bottom of the cross bar 30, and the vertical bar 28 is passed through the cross bar 30 through a movable sleeve 33. The vertical bar 28 and the cross bar 30 are fastened by fasteners 31, and a consolidator 33 is arranged on the fastener 31. A winch 34 is arranged on the floor 42, and a suspension rod 35 is extended on the floor 42. The pull rope 29 is arranged to be connected with the winch 34.

[0039] Embodiment 2

[0040] As another embodiment, this embodiment 2 is proposed on the basis of the embodiment 1, and the complex special-shaped curved reinforced concrete shear wall construction system obtained by this method is as follows: Figures 1 to 10 As shown, it includes: a curved shear wall 4, a Y-shaped movable support unit frame 5, a simple fixing device 23, a shear wall 27, a cantilever frame 40 and a spiral brace rod 37;

[0041] The curved shear wall 4 is supported by wooden formwork 15 on both sides, and the wooden formwork 15 is reinforced by spiral braces 37; a staircase 1 is provided outside the curved shear wall 4 through a cast-in-place staircase support system 6; a cantilever frame 40 is used to support the shaped formwork 9 during the construction of the shear wall 27;

[0042] A winch 34 is provided on the floor 42 , a suspension rod 35 is extended outwardly from the floor 42 , and a pull rope 29 is connected to the winch 34 ; a curved beam 2 is constructed on the top of the curved shear wall 4 through a simple fixing device 23 .

[0043] like Figure 7 , Figure 8 , Fig. 9 As shown, the curved shear wall 4 is supported by a wooden formwork 15, an expansion sponge 19 is arranged between the wooden formworks 15, a sealing plate 18 is arranged on the outside of the formwork seam 16, the sealing plate 18 and the wooden formwork 15 are fixed by a fixing clamp 17, the inner side of the small-pitch curved shear wall 4 is reinforced by a spiral pair of struts 37, the spiral pair of struts 37 tighten the reinforcing ribs 36, a concave positioning cover 38 is arranged on the top of the curved shear wall 4, the outer side of the curved shear wall 4 is fixed by an oblique brace 41, and an ear plate oblique brace member 39 is arranged between the oblique brace 41 and the formwork.

[0044] like Figure 1 , Figure 2 , Figure 3 As shown, a staircase 1 is arranged outside the curved shear wall 4. A cast-in-place staircase support system 6 is adopted during the construction of the staircase 1. The cast-in-place staircase support system 6 is composed of a Y-shaped movable support unit frame 5 and a connecting cross bar 7. A standardized template 9 is arranged on the cast-in-place staircase support system 6. The Y-shaped movable support unit frame 5 is composed of a movable disc 8, a rolling wheel 10, a Y-shaped rod 11, a telescopic rod 12, a sleeve 13, etc. A reserved hole 14 is arranged on the sleeve 13. The connecting cross bar 7 passes through the sleeve 13 to connect the Y-shaped movable support unit frame 5 together. A plurality of rolling wheels 10 are arranged on the movable disc 8. The positioning of the standardized template 9 is achieved by adjusting the telescopic rod.

[0045] like Figure 4 , Figure 5 , Figure 6As shown, during the construction of the shear wall 27, a cantilever frame 40 is used to support the shaped formwork 9. The cantilever frame 40 is composed of a cross bar 30, a fastener 31, a vertical bar 28, a pull rope 29, etc. An embedded angle steel 25 is arranged on the shear wall 27. One side of the cross bar 30 is arranged on the angle steel 25, and the other side is stressed by the pull rope 29. A support rod 26 is arranged at the bottom of the cross bar 30. The vertical bar 28 is passed through the cross bar 30 through a movable sleeve 33. The vertical bar 28 and the cross bar 30 are fastened by fasteners 31. A consolidator 33 is arranged on the fastener 31. A winch 34 is arranged on the floor 42. A suspension rod 35 is extended on the floor 42. The pull rope 29 is arranged to be connected with the winch 34.

[0046] like Fig.10 As shown, the curved cross beam 2 is constructed by a simple tie device 23 , which is composed of a Z-shaped bracket 24 , a tie rod 22 , a top support 21 , etc. The Z-shaped bracket 24 is connected to the curved shear wall 4 .

[0047] It should be noted that the parts in this embodiment that are the same or similar to those in the first embodiment can be referenced to each other and will not be described in detail in this application.

[0048] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

Claims

1. A construction method for a complex special-shaped curved reinforced concrete shear wall, characterized in that: The following steps are involved: S1. The curved shear wall formwork is made of wooden formwork, and the inner side of the curved shear wall is reinforced with spiral braces; S2. Use a simple tie device to construct a curved beam on the top of the curved shear wall; S3, staircase construction: a cast-in-place staircase support system is used outside the curved shear wall to support the staircase's shaped formwork and cast the staircase; S4. Use cantilever frames to support standardized formwork and construct shear walls.

2. The construction method of the complex special-shaped curved reinforced concrete shear wall according to claim 1 is characterized in that: In step S1: the curved shear wall formwork is supported by wooden formwork, expansion sponges are arranged between the wooden formworks, sealing plates are arranged on the outside of the formwork seams, the sealing plates and the wooden formworks are fixed by fixing clamps, the inner side of the small-spacing curved shear wall is reinforced by spiral pair struts, the spiral pair struts are tightened to reinforce the ribs, a concave positioning cover is arranged on the top of the curved shear wall, the outer side of the curved shear wall is fixed by diagonal braces, and ear plate diagonal braces are arranged between the diagonal braces and the formwork.

3. The construction method of the complex special-shaped curved reinforced concrete shear wall according to claim 1 is characterized by: In step S2: the curved cross beam is constructed by using a simple tie device, which includes a Z-shaped bracket, a tie rod and a top support, and the Z-shaped bracket is connected to the curved shear wall.

4. The construction method of the complex special-shaped curved reinforced concrete shear wall according to claim 1 is characterized by: In step S3: a building is arranged outside the curved shear wall, and a cast-in-place staircase support system is adopted during staircase construction. The cast-in-place staircase support system includes a Y-shaped movable support unit frame and a connecting cross bar. A standardized template is arranged on the cast-in-place staircase support system. The Y-shaped movable support unit frame includes a movable disc, a rolling wheel, a Y-shaped rod, a telescopic rod and a sleeve. A reserved hole is arranged on the sleeve. The connecting cross bar passes through the sleeve to connect the Y-shaped movable support unit frame together. A plurality of rolling wheels are arranged on the movable disc. The positioning of the standardized template is achieved by adjusting the telescopic rod.

5. The construction method of the complex special-shaped curved reinforced concrete shear wall according to claim 1 is characterized by: During the construction of shear walls, cantilever frames are used to support the standardized formwork. The cantilever frames include cross bars, fasteners, vertical bars and pull ropes. Embedded angle steels are arranged on the shear walls. One side of the cross bar is arranged on the angle steel, and the other side is stressed by the pull ropes. A support rod is arranged at the bottom of the cross bar, and the vertical bar is passed through the cross bar through a movable sleeve. The vertical bar and the cross bar are fastened by fasteners, and a consolidater is arranged on the fasteners.

6. The construction method of the complex special-shaped curved reinforced concrete shear wall according to claim 1 is characterized by: In step S4, a winch is arranged on the floor, a suspension rod is extended on the floor, and a pull rope is arranged to be connected to the winch.

7. Complex special-shaped reinforced concrete shear wall, characterized by: Obtained by the method according to any one of claims 1 to 6.