Turnover type prefabricated formwork embedded column main reinforcement positioning device

Abstract

The utility model relates to the technical field of formwork wall structures, and discloses a turnover type prefabricated formwork embedded column main rib positioning device which comprises a positioning frame, a supporting frame and a supporting frame. One end of the Z-shaped bracket is connected with the positioning frame, and the other end of the Z-shaped bracket is connected with the cushion block on the laminated plate; the main reinforcement positioning piece is movably arranged on the positioning frame and matched with the main reinforcement; according to the main reinforcement positioning device, through the arrangement of the positioning frame, the Z-shaped support and the main reinforcement positioning piece, it can be effectively ensured that the position of the embedded column main reinforcement is accurate, meanwhile, the construction efficiency is improved, through the arrangement of the Z-shaped support, the distance between every two adjacent laminated slabs is conveniently controlled, the positioning frame can be fixed according to the requirements of construction working conditions of different laminated slab intervals, and the construction efficiency is improved. The method is suitable for construction conditions with different laminated slab distances; the device can be repeatedly used in the construction of a plurality of prefabricated formwork shear walls; the problems that according to an existing prefabricated formwork shear wall embedded column main reinforcement positioning mode, the main reinforcement positioning precision and efficiency are low, and the safety and stability of the structure are poor are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the formwork wall structure technical field, concretely relates to a kind of prefabricated formwork concealed column main reinforcement positioning device of turnover. BACKGROUND

[0002] With the continuous development and technical innovation of construction industry, prefabricated formwork system as a kind of formwork structure that can be reused in prefabricated structural member process, due to its turnover, repeatability and strong practicability, lead to the application of prefabricated formwork system in shear wall structure increasingly widespread.

[0003] However, in the construction process of prefabricated formwork shear wall concealed column, the formwork system bottom joint, shear wall vertical distribution steel is preferably lap joint, the vertical distribution steel of lower shear wall can be extended upwards and lap joint with the vertical distribution steel of upper shear wall, additional connecting steel can also be set to lap joint with the vertical distribution steel of upper and lower shear wall, the steel of shear wall can be connected in the same section, and the lap joint length l DC Should be less than 1.2l CE ; l CE Should be calculated and determined according to the current national standard "Concrete structure design specification" GB50010;The vertical and horizontal distribution steel of first and second grade aseismic shear wall bottom reinforcing part, lap joint position is preferably staggered, the number of steel connected in the same section should not exceed 50% of total number of steel, the staggered clear distance should not be less than 500mm, and the lap joint length Lx should be calculated and determined according to the current national standard "Concrete structure design specification" GB50010;When connected in the same section, the lap joint length l should not be less than 1.6E;

[0004] The accuracy and stability of main reinforcement positioning have been the key problems affecting engineering quality and construction efficiency. The commonly used main reinforcement positioning method is to fix the main reinforcement on one side of the stirrup by using tie reinforcement to position the main reinforcement. However, due to the increase of building height during construction, the stirrup of shear wall concealed column also has obvious deformation during use, so the method of positioning main reinforcement by using stirrup cannot be applied to the positioning of main reinforcement of shear wall concealed column with large span and height, which affects the engineering quality.

[0005] Therefore, the utility model provides a prefabricated formwork shear wall concealed column main reinforcement positioning device to improve the accuracy and efficiency of main reinforcement positioning of prefabricated formwork shear wall concealed column, reduce errors and rework in construction, and ensure the safety and stability of structure, so as to solve the problems of the prior art. UTILITY MODEL CONTENTS

[0006] (1) Technical problems solved

[0007] The utility model provides a kind of prefabricated formwork concealed column main reinforcement positioning device with the advantages of effectively improving the accuracy and efficiency of prefabricated formwork shear wall concealed column main reinforcement positioning, reducing errors and rework in construction, ensuring the safety and stability of structure, etc.

[0008] (II) Technical scheme

[0009] To achieve the above-mentioned purpose of improving the accuracy and efficiency of prefabricated formwork shear wall concealed column main reinforcement positioning, reducing errors and rework in construction, the utility model provides the following technical scheme:

[0010] A kind of prefabricated formwork concealed column main reinforcement positioning device, comprising:

[0011] Positioning frame;

[0012] Z-shaped support, one end is connected with positioning frame, the other end is connected with cushion block on superimposed plate;

[0013] Main reinforcement positioning member, movably arranged on positioning frame, and matched with main reinforcement.

[0014] As one of the preferred embodiments: first sliding positioning groove is formed on each frame edge of the positioning frame, and the first sliding positioning groove is matched with the main reinforcement positioning member.

[0015] As one of the preferred embodiments: the main reinforcement positioning member is slidably arranged in the first sliding positioning groove on the positioning frame, comprising a connecting sleeve, which is matched with the main reinforcement.

[0016] As one of the preferred embodiments: the main reinforcement positioning member further comprises a gasket plate integrally formed with the connecting sleeve, the gasket plate is arranged on the side close to the frame edge of the positioning frame, and a screw hole is formed on the gasket plate and connected with a third screw bolt by screwing, the third screw bolt is matched with the first sliding positioning groove.

[0017] As one of the preferred embodiments: the Z-shaped support comprises a connecting rod and an L-shaped leg connected with each other, the free end of the connecting rod is connected with the positioning frame by a first connecting bolt, and the free end of the L-shaped leg is connected with the cushion block by a threaded rod.

[0018] As one of the preferred embodiments: the end of the connecting rod away from the positioning frame is further provided with a guide adjusting groove and a second sliding positioning groove, the guide adjusting groove is matched with a guide plate at the end of the L-shaped leg, the guide plate is matched with a second connecting bolt, and the second connecting bolt is connected with the positioning plate through the second sliding positioning groove.

[0019] As one of the preferred embodiments: the thickness of the cushion block is the same as the thickness of the cast-in-place layer on the superimposed plate.

[0020] As one of the preferred embodiments: the composite board is reserved with a reserved hole matched with a threaded rod.

[0021] As one of the preferred embodiments: the positioning frame and the Z-shaped support are formed by angle iron welding.

[0022] (Three) beneficial effects

[0023] Compared with the prior art, the utility model provides a kind of recyclable prefabricated formwork hidden column main reinforcement positioning device, with following beneficial effects:

[0024] 1. The main reinforcement positioning device can effectively ensure the position accuracy of the hidden column main reinforcement, meet the design requirements by the setting of positioning frame, Z-shaped support and main reinforcement positioning piece, while enhancing construction efficiency: reduce the time of adjusting the position of main reinforcement on site, speed up construction progress.

[0025] 2. The distance between adjacent two composite boards is facilitated to be controlled by the setting of Z-shaped support, the positioning frame can be fixed according to the construction working condition requirement of different composite board spacing, suitable for different composite board spacing construction working condition.

[0026] 3. The main reinforcement positioning device is repeatedly used in multiple prefabricated formwork shear wall constructions after being made, reduce cost; at the same time, construction personnel is easy to master and operate, without complex skills and experience. The purpose of improving the precision and efficiency of prefabricated formwork shear wall hidden column main reinforcement positioning, reducing error and rework in construction is realized. DETAILED DESCRIPTION

[0027] Figure 1 It is use effect drawing of the recyclable prefabricated formwork hidden column main reinforcement positioning device of the utility model;

[0028] Figure 2 It is structure schematic view of the recyclable prefabricated formwork hidden column main reinforcement positioning device of the utility model;

[0029] Figure 3 It is structure schematic view of the Z-shaped support of the utility model;

[0030] Figure 4 It is the structure schematic view of the Z-shaped support of the utility model Figure 3 Local enlarged view of A in the utility model.

[0031] In the drawing: 1. steel bar; 2. positioning frame; 21. first sliding positioning groove; 3. connecting rod; 31. guide adjusting groove; 32. second sliding positioning groove; 33. first connecting bolt; 4. L-shaped support leg; 41. second connecting bolt; 42. positioning plate; 43. guide plate; 5. threaded rod; 6. cushion block; 7. main reinforcement positioning piece; 71. connecting sleeve; 72. cushion plate; 8. third screw bolt. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0034] A turnover type prefabricated formwork concealed column main reinforcement positioning device is installed on the prefabricated formwork and is used for providing accurate positioning and fixing for the shear wall concealed column main reinforcement 1, ensuring the accuracy of the positioning of the main reinforcement 1, and the specific structure comprises a positioning frame 2, a Z-shaped support and a main reinforcement positioning piece 7; wherein

[0035] The positioning frame 2 is a rectangular frame formed by angle iron welding, and a first sliding positioning groove 21 is formed on the angle iron of each frame edge of the positioning frame 2;

[0036] One end of the Z-shaped support is connected with the frame edge angle iron of the positioning frame 2, and the other end is connected with a cushion block 6 on the superimposed plate through a threaded rod 5, and the thickness of the cushion block 6 is the same as that of the cast-in-place layer;

[0037] The main reinforcement positioning piece 7 is movably installed on the positioning frame 2 and is used in cooperation with the first sliding positioning groove 21 to position the main reinforcement 1.

[0038] It should be noted that in the embodiment, the positioning frame 2, the Z-shaped support and the main reinforcement positioning piece 7 are connected to form a whole and are fixed on the superimposed plate during installation, the main reinforcement 1 is passed through the main reinforcement positioning piece 7, and the main reinforcement 1 is fixed by the restraint of the main reinforcement positioning piece 7. At the same time, through the setting of the first sliding positioning groove 21 and the main reinforcement positioning piece 7, multiple main reinforcement positioning pieces 7 can be installed on the positioning frame 2 according to the positioning requirements of the main reinforcement 1 to position and fix the main reinforcement 1, which can meet the use requirements under different working conditions and the positioning effect of the main reinforcement 1 required by the blasting certificate, so as to solve the problems of low positioning precision and efficiency, poor safety and stability of the structure of the existing prefabricated formwork shear wall concealed column main reinforcement positioning mode.

[0039] As a preferred embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the main reinforcement positioning member 7 comprises a connecting sleeve 71 and a pad plate 72 integrally formed with the connecting sleeve 71, the connecting sleeve 71 is used in cooperation with the main reinforcement 1, the pad plate 72 is installed on the side close to the corner iron of the positioning frame 2, and a threaded hole is formed in the pad plate 72 and is in threaded connection with the third threaded bolt 8, the third threaded bolt 8 is installed on the corner iron of the positioning frame 2 and is in threaded connection with the pad plate 72 through the positioning groove 21 and can slide along the first sliding positioning groove 21.

[0040] It should be noted that in the embodiment, different diameter specifications of the connecting sleeve 71 can be selected according to the diameter of the main reinforcement 1 to be positioned during use, and the main reinforcement 1 is fixed. At the same time, the position of the main reinforcement positioning member 7 on the positioning groove 21 is adjusted by the third threaded bolt 8, so that the main reinforcement positioning member 7 can meet the positioning requirements of the position of the main reinforcement 1, and the use is simple, the adjustment is flexible and convenient, and the on-site assembly and adjustment are facilitated.

[0041] As a preferred embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 As shown, the Z-shaped support comprises a connecting rod 3 and an L-shaped leg 4 connected to each other, wherein: the free end of the connecting rod 3 is connected to the corner iron of the positioning frame 2 through the first connecting bolt 33, the free end of the L-shaped leg 4 is connected to the pad block 6 through the threaded rod 5, forming an adjustable Z-shaped support structure to fix the positioning frame 2, so that the height of the positioning frame 2 is higher than the pouring surface, avoiding the concrete being poured on the positioning frame 2, and facilitating the later turnover and use on the basis of ensuring the positioning effect of the reinforcement 1.

[0042] As a preferred embodiment, as shown in Figure 3 The end of the connecting rod 3 away from the positioning frame 2 is also provided with a guide adjustment groove 31 and a second sliding positioning groove 32, the guide adjustment groove 31 is used in cooperation with the guide plate 43 at the end of the L-shaped leg 4, and a threaded hole is formed in the guide plate 43 and is used in cooperation with the second connecting bolt 41, the second connecting bolt 41 is connected to the positioning plate 42 through the second sliding positioning groove 32, and the connecting rod 3 and the L-shaped leg 4 are fixedly connected.

[0043] It should be noted that in the embodiment, the guide adjustment groove 31 is provided to facilitate the guidance when the connecting rod 3 and the L-shaped leg 4 are connected, so that the size of the Z-shaped support can be adjusted according to the working conditions during use, and the Z-shaped support is suitable for various working conditions during construction.

[0044] As a preferred embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3As shown, the connecting rod 3 and the L-shaped leg 4 are all angle irons, and in use, the end of the connecting rod 3 is abutted on the outside of the frame edge angle iron of the positioning frame 2 to apply a supporting force to position the positioning frame 2, and the L-shaped leg 4 supports and positions the connecting rod 3, facilitating the control of the distance between the adjacent two laminated boards, and being suitable for the construction conditions of different laminated board spacings. Meanwhile, the L-shaped leg 4 can effectively ensure the positioning of the connecting rod 3 and the positioning frame 2 in height, thereby ensuring the construction effect.

[0045] The construction process of the recyclable prefabricated formwork concealed column main reinforcement positioning device comprises:

[0046] Step 1: Positioning device design: according to the design parameters of the shear wall concealed column main reinforcement 1, the upper and lower layers of the concealed column main reinforcement 1 are overlapped at the same position, and the formwork hoisting is difficult; the recyclable prefabricated formwork concealed column main reinforcement positioning device is used to fix the position of the lower layer of main reinforcement 1 and reserve the position of the upper layer of main reinforcement 1, so as to avoid overlapping at the same position; the recyclable prefabricated formwork concealed column main reinforcement positioning device is formed as a whole by connecting the positioning frame 2, the Z-shaped support and the main reinforcement positioning piece 7 with connecting bolts, and a same cast-in-place layer thickness pad 6 and a φ20mm PVC line pipe (convenient for fixing the threaded rod 5) are additionally arranged at the lower part, and the pull bolt is fixed with the laminated board (the φ20mm PVC line pipe is pre-buried when the laminated board is prefabricated);

[0047] Step 2: Positioning device manufacturing: the rectangular positioning frame 2 and the Z-shaped support are made of 50*50*3mm angle irons, the 150*350mm and 150*550mm positioning frames 2 are welded according to the design drawing concealed column section size, the main reinforcement positioning piece 7 is made by welding a 30mm diameter pipe with a height of 50mm, the size of the Z-shaped support is 250*150*100mm, the long side of the upper connecting rod 3 is 250mm, the height is 150mm, and the short side of the lower L-shaped leg 4 is 150mm; the mortar test mold and the same design strength concrete are used to manufacture the concrete prefabricated pad 6 with a size of 70.7*70.7*70.7mm (the plate thickness is 130mm, the prefabricated laminated board thickness is 60mm, and the cast-in-place layer thickness is 70mm), and the φ20mm PVC line pipe is pre-buried;

[0048] Step 3: Prefabricated formwork installation: the prefabricated formwork is installed and fixed according to the construction scheme;

[0049] Step 4: Positioning device installation: the wall column and the roof template installation are completed, and the acceptance is passed; after the laminated board is hoisted, the upper long side one end is connected with the rectangular frame by using 14# screw rod, and the lower short side one end is fixed with the laminated board by using the φ14mm pull bolt, so as to form a whole. The prepared positioning device is installed at the corresponding position of the prefabricated formwork, so as to ensure firmness and accurate position.

[0050] Step 5: Inspection and adjustment: check the installed main reinforcement 1 to ensure that its position, spacing, etc. meet the design requirements, and adjust in time if there is deviation;

[0051] Step 6: Concrete pouring: after the main reinforcement 1 is positioned accurately, the concrete pouring construction is carried out.

[0052] Effect: (1) Improve construction efficiency: reduce the adjustment time caused by inaccurate main reinforcement position, speed up the construction progress. Reduce material waste and labor cost, improve resource utilization. (2) Good repeatability: can be reused in multiple same or similar engineering projects, with good versatility. (3) Significant economic benefits.

[0053] Scope of application: (1) Shear wall structure construction of various high-rise and super high-rise buildings, especially for projects with high requirements for precast column main reinforcement positioning accuracy. (2) Building projects using precast formwork construction technology to improve the efficiency and accuracy of column main reinforcement positioning. (3) For areas with high seismic fortification requirements, it can better guarantee the seismic performance of shear wall structure, thereby improving the safety of the building. (4) Suitable for building engineering that needs to be standardized and industrialized construction to improve the standardization and consistency of construction.

[0054] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0055] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations of these embodiments can be made without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A revolving prefabricated formwork concealed column main reinforcement positioning device, characterized by: include: Positioning frame (2); A Z-shaped bracket, one end of which is connected to the positioning frame (2) and the other end of which is connected to the pad (6) on the laminated plate; The main reinforcement positioning piece (7) is movably arranged on the positioning frame (2) and matches the main reinforcement (1).

2. A revolvable prefabricated formwork concealed column main reinforcement positioning device according to claim 1, characterized in that: Each frame side of the positioning frame (2) is provided with a first sliding positioning groove (21), and the first sliding positioning groove (21) matches the main reinforcement positioning piece (7).

3. The revolving prefabricated formwork concealed column main reinforcement positioning device according to claim 1, characterized in that: The main reinforcement positioning member (7) is slidably arranged in a first sliding positioning groove (21) on the positioning frame (2), and comprises a connecting sleeve (71), and the connecting sleeve (71) matches the main reinforcement (1).

4. A revolvable prefabricated formwork concealed column main reinforcement positioning device according to claim 3, characterized in that: The main reinforcement positioning member (7) also includes a pad (72) integrally formed with the connecting sleeve (71), the pad (72) being arranged on a side close to the edge of the positioning frame (2), and a screw hole is provided on the pad (72) for threaded connection with the third screw bolt (8), and the third screw bolt (8) matches the first sliding positioning groove (21).

5. The revolving prefabricated formwork concealed column main reinforcement positioning device according to claim 1, characterized in that: The Z-shaped bracket comprises a connecting rod (3) and an L-shaped leg (4) connected to each other, the free end of the connecting rod (3) is connected to the positioning frame (2) via a first connecting bolt (33), and the free end of the L-shaped leg (4) is connected to a pad (6) via a threaded rod (5).

6. A revolvable prefabricated formwork concealed column main reinforcement positioning device according to claim 5, characterized in that: The end of the connecting rod (3) away from the positioning frame (2) is also provided with a guide adjustment groove (31) and a second sliding positioning groove (32), the guide adjustment groove (31) matches the guide plate (43) at the end of the L-shaped leg (4), the guide plate (43) matches the second connecting bolt (41), and the second connecting bolt (41) passes through the second sliding positioning groove (32) and is connected to the positioning plate (42).

7. The revolving prefabricated formwork concealed column main reinforcement positioning device according to claim 1, characterized in that: The thickness of the pad (6) is the same as that of the cast-in-situ layer on the composite slab.

8. The revolving prefabricated formwork concealed column main reinforcement positioning device according to claim 1, characterized in that: The laminated plate is provided with a reserved hole to match the threaded rod (5).

9. The revolving prefabricated formwork concealed column main reinforcement positioning device according to claim 1, characterized in that: The positioning frame (2) and the Z-shaped bracket are both formed by welding angle irons.

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