A kind of steel bar positioning construction structure and method for prefabricated structure transfer layer

Abstract

The present invention discloses a steel bar positioning construction structure and method for a prefabricated structure transition layer, including positioning steel bars, telescopic diagonal supports and positioning angle steels; the positioning angle steels are connected as a whole by bolts on flat steels and transverse telescopic channel steels; the positioning angle steels are sleeved on the positioning steel bars through strip holes, the ends of the positioning steel bars are sleeved with metal wire tubes, the positioning angle steels and L-shaped steels are fixed by bolts, the upper ends of the telescopic diagonal supports are connected to the positioning angle steels by bolts passing through the channel steels, and the lower ends of the telescopic diagonal supports are placed on the upper part of the prefabricated composite plate. The present invention uses positioning angle steels + metal wire tubes + plastic protective caps to position the steel bars and protect the finished products, and the facilities are taken out after the final setting of the concrete, effectively ensuring the positioning accuracy of the steel bars of the shear wall of the prefabricated structure, and also effectively reducing the problems of later roughening and handling economic losses caused by inaccurate positioning of the steel bars, and is simple to operate, convenient to construct, and highly practical.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar construction in building engineering, and in particular to a steel bar positioning construction structure and method for a prefabricated structure transfer layer. Background Art

[0002] The steel bars of the transfer layer of the prefabricated residential building are arranged in a "plum blossom" shape, and the spacing between adjacent steel bars is about 300mm. Through a detailed analysis of the entire construction process of the prefabricated wall, it is found that the installation and adjustment of the prefabricated wall is very difficult. The main reason is that the positioning accuracy of the extended bars connected to the grouting sleeve is not enough, and the displacement deviation after the cast-in-place layer is poured is large, which fails to meet the longitude requirements. Before the installation of the prefabricated wall, the positioning and adjustment of the reserved extended bars of the cast-in-place transfer layer is very difficult.

[0003] The traditional reinforcement positioning system is mainly a plane reinforcement positioning system, but the positioning accuracy of the reinforcement is not enough. It can only locate the bottom of the reserved reinforcement, but not the free end of the extended reinforcement, resulting in a large deviation in the positioning of the extended reinforcement. The later adjustment of the reinforcement seriously affects the construction efficiency of the prefabricated wall installation and the overall construction period. Summary of the invention

[0004] The purpose of the present invention is to provide a construction structure and method for positioning steel bars in a transition layer of an assembled structure, which can effectively position the steel bars, ensure the accuracy of the plane position and the vertical position of the transition layer positioning steel bars, and can be applicable to the positioning of steel bars at different spacings, effectively ensure the construction quality, improve the construction efficiency and reduce economic losses, so as to solve the problem of inaccurate positioning of the positioning steel bars in the shear wall of the assembled integral transition layer, resulting in economic losses and even quality.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A steel bar positioning construction structure for a prefabricated structure transition layer, comprising positioning steel bars, a telescopic oblique support and two positioning angle steels arranged opposite to each other; a flat steel is welded to the horizontal direction of one of the positioning angle steels, a transverse expansion channel steel is welded to the horizontal direction of the other positioning angle steel, and the two positioning angle steels arranged opposite to each other are connected as a whole by bolts on the flat steel and the transverse expansion channel steel; a strip hole is also provided on the positioning angle steel, and the positioning angle steel is sleeved on the positioning steel bars through the strip hole in the horizontal direction, and a metal wire tube is sleeved on the end of the positioning steel bar, and the other end of the metal wire tube passes through an L-shaped steel and is sleeved with a plastic cap; the L-shaped steel and the positioning angle steel are fixed by bolts, and the bolts are connected in the strip holes in the vertical direction of the positioning angle steel; the upper end of the telescopic oblique support is connected to the positioning angle steel by bolts passing through the channel steel, and the lower end of the telescopic oblique support is placed on the upper part of the prefabricated composite plate.

[0007] Furthermore, holes for bolts to pass through are reserved on the flat steel and the transverse expansion channel steel, and the transverse width between two positioning angle steels arranged opposite to each other is adjusted through the reserved holes.

[0008] Furthermore, the height of the positioning angle steel = the thickness H of the prefabricated composite slab + the thickness h of the cast-in-place concrete, and a pad with the same thickness as the cast-in-place concrete slab is added to the bottom of the telescopic inclined support.

[0009] Furthermore, the spacing between the positioning steel bars can be adjusted by sliding in the strip holes reserved on the positioning angle steels.

[0010] Furthermore, the position of the L-shaped steel on the positioning angle steel can be adjusted by sliding the bolts in the strip holes.

[0011] Furthermore, the diameter of the metal wire tube is mm larger than the diameter of the positioning steel bar, and the elevation of the bottom of the metal wire tube is the same as the elevation of the finished surface of concrete pouring.

[0012] The present invention provides another technical solution: a method for positioning and constructing steel bars of a prefabricated structure transition layer, which is implemented based on a prefabricated structure transition layer steel bar positioning and construction structure, and comprises the following steps:

[0013] S1: According to the requirements of the drawings, the steel bars of the vertical wall panels are tied, the prefabricated composite panels are hoisted, and the positioning steel bars are arranged according to the requirements of the drawings;

[0014] S2: Adjust the relative position of the transverse expansion channel steel and the flat steel according to the wall thickness, and fix the transverse expansion channel steel and the flat steel with bolts;

[0015] S3: Use the strip holes reserved on the on-site positioning angle steel to preliminarily determine the position of the positioning steel bars, and adjust the spacing between the positioning steel bars and the wall edge through the strip holes;

[0016] S4: Install L-shaped steel on the side of the positioning angle steel to locate the specific position of the positioning steel bar. The L-shaped steel moves through the reserved strip holes and is fixed by bolts;

[0017] S5: Pass the metal wire tube through the L-shaped steel and install it on the positioning steel bar. The bottom of the metal wire tube is elevated above the cast-in-place concrete surface. Install a plastic cap on the top of the metal wire tube before pouring the concrete.

[0018] S6: Connect the telescopic diagonal support to the positioning angle steel through bolts, and fix the bottom support of the telescopic diagonal support at the composite plate position;

[0019] S7: When pouring concrete, the vibrating rod is used to vibrate the middle part of the two positioning angle steels set opposite to each other. After the concrete pouring is completed, double-sided double control lines are placed on the plate surface to check the positioning steel bars.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The steel bar positioning construction structure and method for the prefabricated structure transition layer of the present invention are completed with common materials in the construction process, are simple to operate, convenient to construct, highly practical, and can be reused multiple times. The steel bars are accurately positioned, reducing economic and construction period losses caused by the subsequent steel bar deviation, effectively solving the problem of large positioning deviation in the transition layer construction, reducing subsequent maintenance and rectification costs and saving construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of the construction structure of the present invention;

[0023] Figure 2 It is a top view of the construction structure of the present invention;

[0024] Figure 3 It is a side view of the construction structure of the present invention.

[0025] In the figure: 1. Flat steel; 2. Metal wire tube; 3. Positioning steel bar; 4. Plastic cap; 5. Strip hole; 6. Retractable diagonal support; 7. Bolt; 8. Positioning angle steel; 9. L-shaped steel; 10. Horizontal expansion channel steel. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-3In an embodiment of the present invention, a steel bar positioning construction structure for a prefabricated structure transition layer is provided, comprising a flat steel 1, a metal wire tube 2, a positioning steel bar 3, a plastic cap 4, a strip hole 5, a retractable diagonal support 6, a bolt 7, an L-shaped steel 9, a transverse expansion channel steel 10 and two positioning angle steels 8 arranged opposite to each other; a flat steel 1 is welded to the horizontal direction of one of the positioning angle steels 8, and a transverse expansion channel steel 10 is welded to the horizontal direction of the other positioning angle steel 8, and the two positioning angle steels 8 arranged opposite to each other are welded by the flat steel 1 and the transverse expansion channel steel 10 and connected as a whole by bolts 7, wherein holes for the bolts 7 to pass through are reserved on the flat steel 1 and the transverse expansion channel steel 10, and the transverse width of the two positioning angle steels 8 arranged opposite to each other is adjusted by the reserved holes so that it is consistent with the position of the wall steel bar; a strip hole 5 is opened on the positioning angle steel 8, and the strip hole 5 reserved in the horizontal direction on the upper part of the positioning angle steel 8 is inserted into the position of the positioning steel bar 3 for preliminary positioning , and the L-shaped steel 9 is fixed with the vertical strip hole 5 of the positioning angle steel 8 by bolts 7 (the L-shaped steel 9 can move within a certain distance at the position of the strip hole 5), which is used to accurately locate the position of the wall positioning steel bar 3; the upper end of the telescopic inclined support 6 is connected to the positioning angle steel 8 by the bolt 7 passing through the channel steel, and the height of the positioning angle steel 8 is ensured to be higher than the concrete finish surface by telescoping (generally the thickness of the composite board H = 60mm, the thickness of the cast-in-place concrete h = 70-90mm, and the height of the positioning angle steel 8 = H + h), and the bottom is placed on the upper part of the prefabricated composite board (a pad with the same thickness of the cast-in-place concrete board is added to the bottom of the telescopic inclined support 6 to achieve a recycling effect); a metal wire tube 2 is sleeved at the end of the positioning steel bar 3 to further ensure the accurate position of the positioning steel bar 3. The diameter of the metal wire tube 2 is 2mm larger than the diameter of the positioning steel bar 3. The other end of the metal wire tube 2 passes through the L-shaped steel 9 and is sleeved with a plastic cap 4 to reduce the pollution of the positioning bar during concrete pouring.

[0028] In the above embodiment, the telescopic inclined supports 6 on both sides of the positioning angle steel 8 can control the height of the positioning angle steel 8 above the finished surface of the cast-in-place concrete by telescoping the length, which is beneficial to the overall recycling of the structure and saves engineering costs.

[0029] The width of the positioning angle steel 8 in this embodiment is adjusted in the width direction by using the reserved holes in the transverse expansion channel steel 10, which is suitable for vertical components with different wall thicknesses. The positioning angle steel 8 has reserved strip holes 5 on the positioning side and side, which are used to facilitate adjustment when the spacing of the positioning steel bars 3 of the prefabricated components is different. The overall rigidity and strength are high, and the pouring of concrete is not prone to overall deformation and position movement, and the applicable conditions and scope are wider.

[0030] In the above embodiment, the L-shaped steel 9 can move within a certain range through the reserved strip hole 5 of the positioning angle steel 8, and the positioning steel bar 3 is positioned by the reserved circular hole + metal wire tube 2 at the upper end, and the side is fixed with the positioning angle steel 8 by double bolts 7 to form a whole, ensuring accurate positioning of the steel bar.

[0031] In this embodiment, the metal wire tube 2 is installed on the positioning steel bars 3, the bottom elevation of the metal wire tube 2 is the same as the elevation of the finished surface of the concrete pouring, and the top position of the metal wire tube 2 is sealed with a plastic cap 4. The positioning steel bars 3 are protected during the concrete pouring, reducing the later steel bar grinding and saving construction time.

[0032] In order to further better explain the embodiment of the present invention, a method for positioning the steel bars of the transition layer of an assembled structure is also provided. After the shear wall steel bars of the next layer of the transition layer and the reserved positioning steel bars are tied and initially positioned, the specific steps are as follows:

[0033] Step 1: According to the requirements of the drawings, complete the steel bar binding of the vertical wall panels, complete the hoisting of the prefabricated composite panels, and lay out the positioning steel bars 3 according to the requirements of the drawings;

[0034] Step 2: Adjust the relative position of the transverse expansion channel steel 10 and the flat steel 1 according to the wall thickness, fix the transverse expansion channel steel 10 and the flat steel 1 with bolts 7, and adjust the transverse width between the transverse expansion channel steel 10 and the flat steel 1 according to the reserved openings between the two;

[0035] Step 3: Use the reserved strip holes 5 on the on-site positioning angle steel 8 to preliminarily determine the position of the positioning steel bar 3, and use the reserved strip holes 5 to solve the problem of different spacing between the positioning steel bar 3 and the wall edge;

[0036] Step 4: Install L-shaped steel 9 on the side of the positioning angle steel 8 to locate the specific position of the positioning steel bar 3. The L-shaped steel 9 moves through the reserved strip hole 5 and is fixed by bolts 7;

[0037] Step 5: Pass the metal wire tube 2 through the L-shaped steel 9 and install it on the positioning steel bar 3. The bottom end of the metal wire tube 2 is elevated above the cast-in-place concrete surface (composite slab surface + post-cast concrete height h). Before pouring concrete, install a plastic cap 4 on the top of the metal wire tube 2.

[0038] Step 6: Connect the telescopic oblique support 6 to the positioning angle steel 8 through bolts 7, and fix the bottom support of the telescopic oblique support 6 at the composite plate position;

[0039] Step 7: When pouring concrete, the vibrating rod vibrates the middle part of the two positioning angle steels 8 set opposite to each other to reduce the overall disturbance and ensure the accuracy of the positioning steel bars 3. After the concrete pouring is completed, double-sided double control lines are placed on the plate surface to check the positioning steel bars 3.

[0040] To sum up: the present invention provides an assembled structure transition layer steel bar positioning construction structure and method, which is completed using common materials in the construction process. It is not only simple to operate, low cost, and high turnover efficiency, but also effectively solves the large deviation in the construction positioning of the transition layer, reduces the cost of subsequent maintenance and rectification, and saves construction period.

[0041] It should be noted that, in this article, numerical terms such as 2-3 mm are only used to describe this preferred example, and do not require or imply specific parameters of these specific construction methods. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although the preferred 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 the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated structure transfer layer steel bar positioning construction structure, characterized in that: The invention comprises a positioning steel bar (3), a telescopic inclined support (6) and two positioning angle steels (8) arranged opposite to each other; a flat steel (1) is welded to one of the positioning angle steels (8) in the horizontal direction, and a transverse telescopic channel steel (10) is welded to the other positioning angle steel (8) in the horizontal direction; the two positioning angle steels (8) arranged opposite to each other are connected as a whole by bolts (7) on the flat steel (1) and the transverse telescopic channel steel (10); the positioning angle steel (8) is also provided with a strip hole (5), and the positioning angle steel (8) is sleeved on the strip hole (5) in the horizontal direction. On the positioning steel bar (3), the end of the positioning steel bar (3) is sleeved with a metal wire tube (2), and the other end of the metal wire tube (2) passes through the L-shaped steel (9) and is sleeved with a plastic cap (4); the L-shaped steel (9) and the positioning angle steel (8) are fixed by bolts (7), and the bolts (7) are connected to the strip holes (5) in the vertical direction of the positioning angle steel (8); the upper end of the telescopic inclined support (6) is connected to the positioning angle steel (8) by bolts (7) passing through the channel steel, and the lower end of the telescopic inclined support (6) is placed on the upper part of the prefabricated composite plate.

2. The assembled structure transfer layer steel bar positioning construction structure according to claim 1, characterized in that: Holes for the bolts (7) to pass through are reserved on the flat steel (1) and the transverse expansion channel steel (10), and the transverse width of two positioning angle steels (8) arranged opposite to each other is adjusted through the reserved holes.

3. The assembled structure transfer layer steel bar positioning construction structure according to claim 1, characterized in that: The height of the positioning angle steel (8) is equal to the thickness H of the prefabricated composite slab + the thickness h of the cast-in-place concrete. A pad with the same thickness as the cast-in-place concrete slab is provided at the bottom of the telescopic inclined support (6).

4. The assembled structure transfer layer steel bar positioning construction structure according to claim 1, characterized in that: The spacing between the positioning steel bars (3) can be adjusted by sliding in the strip holes (5) reserved on the positioning angle steel (8).

5. The assembled structure transfer layer steel bar positioning construction structure according to claim 1, characterized in that: The position of the L-shaped steel (9) on the positioning angle steel (8) can be adjusted by sliding the bolt (7) in the strip hole (5).

6. The assembled structure transfer layer steel bar positioning construction structure according to claim 1, characterized in that: The diameter of the metal wire tube (2) is 2 mm larger than the diameter of the positioning steel bar (3), and the bottom elevation of the metal wire tube (2) is the same as the elevation of the finished concrete pouring surface.

7. A method for positioning and constructing steel bars for a prefabricated structure transition layer, based on the prefabricated structure transition layer steel bars positioning and constructing structure according to claim 1, characterized in that: The following steps are involved: S1: According to the requirements of the drawings, the steel bars of the vertical wall panels are tied, the prefabricated composite panels are hoisted, and the positioning steel bars are arranged according to the requirements of the drawings (3); S2: adjusting the relative position of the transverse expansion channel steel (10) and the flat steel (1) according to the thickness of the wall, and fixing the transverse expansion channel steel (10) and the flat steel (1) by means of bolts (7); S3: using the strip holes (5) reserved on the on-site positioning angle steel (8) to preliminarily determine the position of the positioning steel bar (3), and at the same time adjusting the spacing between the positioning steel bar (3) and the wall edge through the strip holes (5); S4: Installing an L-shaped steel (9) on the side of the positioning angle steel (8) to locate the specific position of the positioning steel bar (3), the L-shaped steel (9) is moved through the reserved strip hole (5) and fixed by bolts (7); S5: Pass the metal wire tube (2) through the L-shaped steel (9) and install it on the positioning steel bar (3), the bottom end of the metal wire tube (2) is elevated above the cast-in-place concrete surface, and a plastic cap (4) is installed on the top of the metal wire tube (2) before pouring the concrete; S6: Connect the telescopic oblique support (6) to the positioning angle steel (8) through bolts (7), and fix the bottom support of the telescopic oblique support (6) at the position of the superimposed plate; S7: When pouring concrete, a vibrating rod is used to vibrate the middle part of two positioning angle steels (8) arranged opposite to each other. After the concrete pouring is completed, double-sided double control lines are placed on the slab surface to check the positioning steel bars (3).

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