A special-shaped column steel bar assembly structure and construction method thereof

Abstract

The present invention relates to a special-shaped column steel bar assembly structure and a construction method thereof, the structure comprising a concrete base plate, a cap steel bar, a positioning wood sleeve, vertical main bars and transverse stirrups, wherein the concrete base plate is provided with base plate steel bars; the cap steel bars are laid on the concrete base plate and are welded and fixed to the base plate steel bars; the vertical main bars are L-shaped, comprising an upper vertical bar and a bottom cross bar, the bottom cross bar is welded and fixed to the base steel bars and the cap steel bars; the positioning wood sleeve comprises a first wood sleeve and a second wood sleeve arranged in sequence along the longitudinal direction, the upper vertical bar passes through the first wood sleeve and the second wood sleeve; the transverse stirrups are tied to the periphery of the vertical main bars. The present invention constructs the overall binding of the vertical main bars synchronously with the concrete base plate, and then assembles the two, thereby shortening the construction period; at the same time, the use of upper and lower layers of positioning wood sleeves solves the problem of cross-bar "fighting" caused by the flexibility and easy bending of the vertical main bars.

Description

Technical Field

[0001] The invention relates to the field of building construction, and in particular to a special-shaped column steel bar assembly structure and a construction method thereof. Background Art

[0002] With the rapid development of my country's economy, people have higher requirements for the function and appearance of housing construction. In order to meet the professional functional requirements of buildings, many steel concrete special-shaped columns have appeared in the building structure. The so-called special-shaped columns are columns with non-rectangular cross-sections, such as table tennis racket shapes, dumbbell shapes, T shapes, cross shapes, Z shapes and L shapes. The special-shaped column structure organically combines the beauty of the building, the flexibility of the use function and the reasonable stress performance of the building structure, providing users with an ideal living environment. It is welcomed by real estate developers and users, and has even been used to a certain extent in the 8-degree earthquake fortification zone.

[0003] At present, the construction of steel-concrete special-shaped columns basically involves installing the steel column base first, and then tying the in-situ steel bars. This is because the steel bars in special-shaped columns are usually large in diameter and dense, and the steel bar tying is limited by the foundation pit construction space, which makes in-situ tying more difficult and has a greater impact on the quality of steel bar tying. In addition, the constraints of previous construction procedures such as tying the steel bars of the pedestal and bottom plate and the installation of anchor bolts at the steel column base have a greater impact on the construction progress of the special-shaped columns.

[0004] Therefore, how to provide a special-shaped column steel bar assembly structure with good construction quality and high efficiency and a construction method thereof is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The present invention provides a special-shaped column reinforcement assembly structure and a construction method thereof to solve the above technical problems.

[0006] In order to solve the above technical problems, the present invention provides a special-shaped column steel bar assembly structure, including a concrete base plate, a cap steel bar, a positioning wood sleeve, vertical main bars and transverse stirrups, wherein:

[0007] The concrete bottom plate is provided with bottom plate reinforcement;

[0008] The cap steel bars are laid on the concrete bottom plate and fixed by welding to the bottom plate steel bars;

[0009] The vertical main reinforcement is L-shaped, including an upper vertical bar and a bottom cross bar, and the bottom cross bar is welded and fixed to the bottom plate steel bars and the cap steel bars;

[0010] The positioning wooden panels include a first wooden panel and a second wooden panel arranged in sequence along the longitudinal direction, and the upper vertical rod passes through the first wooden panel and the second wooden panel;

[0011] The transverse stirrups are tied to the periphery of the vertical main reinforcement.

[0012] Preferably, the special-shaped column reinforcement assembly structure also includes a cross-shaped steel column, which is arranged parallel to the vertical main reinforcement and at the middle position of the vertical main reinforcement, and the positioning wooden sleeve is provided with a clearance hole for making way for the cross-shaped steel column.

[0013] Preferably, the special-shaped column reinforcement assembly structure further includes a connecting main reinforcement, and the connecting main reinforcement is installed on the upper part of the vertical main reinforcement and extends upward.

[0014] Preferably, the special-shaped column reinforcement assembly structure further includes a third wooden sheathing plate and a fourth wooden sheathing plate, and the main reinforcement passes through the third wooden sheathing plate and the fourth wooden sheathing plate.

[0015] Preferably, the edge of the cap steel bar is bent upward by 45°.

[0016] Preferably, the first wooden panel is 500 mm away from the bottom of the upper vertical rod, and the second wooden panel is 500 mm away from the top of the upper vertical rod.

[0017] Preferably, the upper vertical rod and the bottom cross rod are formed by bending, and the length of the bottom cross rod is 150 mm.

[0018] The present invention also provides a construction method of the above-mentioned special-shaped column steel bar assembly structure, comprising the following steps:

[0019] Step 1: According to the construction drawing, process and manufacture the vertical main reinforcement and the transverse stirrups;

[0020] Step 2: Processing and manufacturing the positioning wood sleeve according to the construction drawing and the vertical main reinforcement;

[0021] Step 3: erecting a temporary supporting steel pipe scaffolding as a worker operating platform and as a temporary support for the vertical main reinforcement, the transverse stirrups and the positioning wooden sleeve, and completing the installation of the vertical main reinforcement, the transverse stirrups and the positioning wooden sleeve;

[0022] Step 4: Use iron wire to tie and connect the vertical main reinforcement and the transverse stirrups to form an integral column foot reinforcement cage;

[0023] Step 5: While steps 3 and 4 are being constructed, the concrete base plate is constructed simultaneously, and the cap steel bars are laid on the concrete base plate;

[0024] Step 6: hoist the integral column foot reinforcement cage completed in step 4 to the designed position, and assemble and connect it with the cap reinforcement;

[0025] Step 7: Remove the first wooden panel and the second wooden panel.

[0026] Preferably, after step 7, the method further includes the step of hoisting a cross-shaped steel column at the middle position of the vertical main reinforcement.

[0027] Preferably, if connecting main reinforcement needs to be installed above the vertical main reinforcement, the construction method also includes the following steps: inserting a third wooden panel and a fourth wooden panel on the protruding part of the vertical main reinforcement; installing the connecting main reinforcement on the vertical main reinforcement located at the edge or corner; lifting the third wooden panel and the fourth wooden panel so that the third wooden panel and the fourth wooden panel are respectively located at the corresponding positions of the installed connecting main reinforcement; and inserting the connecting main reinforcement at the remaining positions.

[0028] Compared with the prior art, the special-shaped column steel bar assembly structure and the construction method thereof provided by the present invention have the following advantages:

[0029] 1. In the present invention, the special-shaped column steel bar assembly structure can be installed by off-site binding in an open and flat site, without being restricted by the foundation pit site, thus ensuring the quality of steel bar binding;

[0030] 2. The special-shaped column reinforcement can be tied with the base reinforcement and the bottom plate reinforcement, and the concrete bottom plate construction and other processes can be carried out simultaneously, which greatly improves the construction efficiency;

[0031] 3. Use upper and lower layers of positioning wooden sleeves to limit the vertical main reinforcement, which can ensure the accurate position of the vertical main reinforcement and the wooden sleeves are easy to remove;

[0032] 4. The vertical main reinforcement can be connected to the high main reinforcement upwards. The upper and lower layers of positioning wooden sleeves are also used to straighten the high main reinforcement, which solves the problem of crossing and "fighting" of the vertical main reinforcement and improves the efficiency of steel bar binding. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional structural schematic diagram of a special-shaped column reinforcement assembly structure in a specific embodiment of the present invention;

[0034] Figure 2 It is a structural schematic diagram of a concrete bottom plate in a specific embodiment of the present invention;

[0035] Figure 3 It is a structural schematic diagram of the cap reinforcement in a specific implementation manner of the present invention;

[0036] Figure 4 It is a structural schematic diagram of a positioning wood jacketing board in a specific embodiment of the present invention;

[0037] Figure 5 It is a structural schematic diagram of a vertical main reinforcement in a specific implementation manner of the present invention;

[0038] Figure 6 It is a schematic structural diagram of a cross-shaped steel column in a specific implementation manner of the present invention.

[0039] In the figure: 10-concrete bottom plate, 11-bottom plate steel bars, 20-cap steel bars, 30-positioning wooden panels, 31-first wooden panels, 32-second wooden panels, 33-third wooden panels, 34-fourth wooden panels, 35-positioning holes, 36-clearance holes, 40-vertical main bars, 41-upper vertical bars, 42-bottom horizontal bars, 50-transverse stirrups, 60-cross steel columns, 70-connecting main bars. DETAILED DESCRIPTION

[0040] In order to describe the technical solution of the above invention in more detail, specific embodiments are listed below to demonstrate the technical effect; it should be emphasized that these embodiments are used to illustrate the present invention but are not limited to the scope of the present invention.

[0041] The cross-sectional shapes of special-shaped columns vary. This embodiment takes the tower as an example to specifically explain its steel bar assembly structure. The tower is a circular cylinder. The outer side of the steel-concrete column is arc-shaped, and the inner side is composed of partial arcs and polygons. The shape is very complex, which greatly increases the difficulty of in-situ binding of the column foot steel bars. When the vertical steel bars of the special-shaped column are connected upward and the main bars are suspended for a long time, the main bars will cross each other and "fight" each other, making it difficult to bind them, because the material characteristics of the steel bars are flexible and easy to bend when they are erected.

[0042] The special-shaped column reinforcement assembly structure provided by the present invention is as follows: Figure 1 As shown, combined with Figures 2 to 6 , including a concrete base plate 10, a cap steel bar 20, a positioning wood sleeve 30, a vertical main bar 40 and a transverse stirrup 50, wherein,

[0043] The concrete bottom plate 10 is provided with bottom plate reinforcement 11;

[0044] The cap steel bars 20 are laid on the concrete bottom plate 10 and are welded and fixed to the bottom plate steel bars 11;

[0045] The vertical main reinforcement 40 is L-shaped, including an upper vertical rod 41 and a bottom cross bar 42. The bottom cross bar 42 is welded and fixed to the bottom plate steel bars 11 and the cap steel bars 20 to achieve a firm connection between the upper integral column foot steel cage and the concrete bottom plate 10. In this embodiment, the vertical main reinforcement 40 adopts Φ32 ribbed steel bars, and the upper vertical rod 41 and the bottom cross bar 42 form an angle of 90°, wherein the length of the upper vertical rod 41 is 2600 mm, and the length of the bottom cross bar 42 is 150 mm, thereby reducing material waste while ensuring a firm connection.

[0046] The positioning wooden sleeve 30 includes a first wooden sleeve 31 and a second wooden sleeve 32 arranged in sequence along the longitudinal direction. The upper vertical rod 41 passes through the positioning holes 35 of the first wooden sleeve 31 and the second wooden sleeve 32. The upper and lower layers of the positioning wooden sleeve 30 are used to limit the vertical main reinforcement 40, which can ensure the accurate positioning of the vertical main reinforcement 40 and avoid the bending deformation of the vertical main reinforcement 40 when it is erected due to the long length of the vertical main reinforcement 40, thereby affecting the steel bar binding. In addition, the positioning wooden sleeve 30 is used to facilitate the removal of the positioning wooden sleeve 30 before the subsequent pouring of concrete.

[0047] The transverse stirrups 50 are tied to the periphery of the vertical main reinforcement 40 to form an integral column base reinforcement cage, which can be transported to the construction site for subsequent use, without requiring an early assembly site, and further improving the quality of reinforcement binding; specifically, the transverse stirrups 50 use Ф14 ribbed steel bars, and the transverse stirrups 50 are arranged longitudinally with a spacing of 100 mm.

[0048] The present invention adopts the above-mentioned steel bar assembly structure, has no requirements on the construction site of steel bar binding, and improves the efficiency and quality of steel bar binding.

[0049] Preferably, please focus on Figure 3 The edge of the foundation steel bar 20 is bent upward at 45° to give way and protect the foundation. In this embodiment, the foundation steel bar 20 adopts a ribbed steel bar with a diameter of Ф25, and both ends are bent upward at 45°.

[0050] Preferably, please focus on Figure 4 The positioning wooden sleeve 30 can be specifically set according to the shape of the special-shaped column. The size of each side is offset by 50mm compared to the special-shaped column. A positioning hole 35 is reserved in the middle for the vertical main reinforcement 40 or the connecting main reinforcement 70 to pass through. A clearance hole 36 is also reserved for the cross-shaped steel column 60 to pass through. The aperture of the positioning hole 35 is 38mm. The shape and size of the clearance hole 36 are determined according to the specific structure of the cross-shaped steel column 60.

[0051] Preferably, please continue to refer to Figure 4 The distance between the first wooden panel 31 (third wooden panel 33) and the bottom of the upper vertical bar 41 (connecting the high main reinforcement 70) is 500mm, and the distance between the second wooden panel 32 (fourth wooden panel 34) and the top of the upper vertical bar 41 (connecting the high main reinforcement 70) is 500mm. The upper and lower layers of positioning wooden panels 30 are used to realize the straightening of the upper vertical bar 41 (connecting the high main reinforcement 70), thereby solving the problem that when the vertical main reinforcement 40 (connecting the high main reinforcement 70) is suspended for a long time, the steel bars are crossed and "fight" with each other, and it is difficult to tie them because the material characteristics of the steel bars are flexible and easy to bend when they are erected.

[0052] Preferably, please focus on Figure 5The upper vertical rod 41 and the bottom cross rod 42 are integrally formed and formed by bending, and the upper integral column base steel cage and the concrete bottom plate 10 are firmly connected through the vertical main reinforcement 40.

[0053] Preferably, please focus on and Figure 6 , and combined with Figure 1 The special-shaped column reinforcement assembly structure also includes a cross-shaped steel column 60. When the overall support performance of the structure is required to be high, the cross-shaped steel column 60 can be added. In this embodiment, the size of the steel column is 1000×400 (600×400)×50×50mm, and the length is 3000mm. The steel column is also provided with bolts (not shown) for connecting with the bottom concrete base plate 10, the bolt d=19mm, the spacing is 150mm, and the length is 80mm. Specifically, the cross-shaped steel column 60 is arranged parallel to the vertical main reinforcement 40 and is arranged in the middle position of the vertical main reinforcement 40. The positioning wooden sleeve 30 is provided with a clearance hole 36 for making way for the cross-shaped steel column 60. That is to say, the upper vertical rod 41 passes through the positioning hole 35 of the positioning wooden sleeve 30, and the cross-shaped steel column 60 passes through the clearance hole 36 of the positioning wooden sleeve 30. In this way, the entire special-shaped column reinforcement assembly structure plays a role of mutual support.

[0054] Preferably, please focus on Figure 1 , the special-shaped column reinforcement assembly structure may also include a main reinforcement 70. In this embodiment, the main reinforcement 70 is a ribbed steel bar with a diameter of 32 and a length of 2600 mm. The main reinforcement 70 is installed on the upper part of the vertical main reinforcement 40 and extends upward to increase the longitudinal height of the special-shaped column reinforcement assembly structure. To cooperate with the installation of the main reinforcement 70, the special-shaped column reinforcement assembly structure also includes a third wooden panel 33 and a fourth wooden panel 34, and the main reinforcement 70 passes through the third wooden panel 33 and the fourth wooden panel 34. The specific structure of the third wooden panel 33 and the fourth wooden panel 34 and the connection method with the main reinforcement 70 can refer to the first wooden panel 31 and the second wooden panel 32. In this way, after the vertical main reinforcement 40 is connected, the positioning accuracy and verticality of the reinforcement can still be ensured.

[0055] The present invention also provides a construction method of the above-mentioned special-shaped column steel bar assembly structure, comprising the following steps:

[0056] Step 1: Loft and process the vertical main reinforcement 40 and the transverse stirrup 50 according to the construction drawing.

[0057] Step 2: The positioning wooden panels 30 (such as the first wooden panels 31 and the second wooden panels 32 ) are manufactured according to the construction drawing and the vertical main reinforcement 40 . The positioning wooden panels 30 need to reserve corresponding positioning holes 35 and clearance holes 36 .

[0058] Step 3: Set up a temporary supporting steel pipe scaffolding in an open area as a workers' operating platform and as a temporary support for the vertical main reinforcement 40, the transverse stirrups 50 and the positioning wooden panels 30, and complete the installation of the vertical main reinforcement 40, the transverse stirrups 50 and the positioning wooden panels 30; specifically, the installation steps of the vertical main reinforcement 40, the transverse stirrups 50 and the positioning wooden panels 30 include: first erecting the corner vertical main reinforcement 40 and putting the first wooden panels 31 and the second wooden panels 32 on the vertical main reinforcement 40, and temporarily fixing them, adjusting the first wooden panels 31 and the second wooden panels 32 into place (for example, the distance between the first wooden panels 31 and the bottom of the upper vertical rod 41 is 500mm, and the distance between the second wooden panels 32 and the top of the upper vertical rod 41 is 500mm), and finally inserting all the vertical main reinforcements 40 into the first wooden panels 31 and the second wooden panels 32, and the installation is completed.

[0059] Step 4: Use iron wire to tie and connect the vertical main reinforcement 40 and the transverse stirrups 50 to form an integral column base reinforcement cage.

[0060] Step 5: While steps 3 and 4 are being constructed, the concrete base plate 10 is constructed synchronously, and the cap steel bars 20 are laid on the concrete base plate 10 , and the cap steel bars 20 are welded and fixed to the base plate steel bars 11 .

[0061] Step 6: hoist the integral column base reinforcement cage constructed in step 4 to the designed position (for example, the designed position of the basement special-shaped column), and assemble and connect it with the base reinforcement 20. The assembly connection includes welding and fixing the bottom cross bar 42 of the vertical main reinforcement 40 to the base reinforcement 20.

[0062] Step 7: Use a demolition tool to remove the first wooden panel 31 and the second wooden panel 32.

[0063] Preferably, the method further comprises step 8: hoisting a cross-shaped steel column 60 at the middle position of the vertical main reinforcement 40 .

[0064] Preferably, step 9 is also included: inserting a third wooden panel 33 and a fourth wooden panel 34 on the protruding part of the vertical main reinforcement 40; installing the connecting main reinforcement 70 on the vertical main reinforcement 40 located at the edge or corner; lifting the third wooden panel 33 and the fourth wooden panel 34 so that the third wooden panel 33 and the fourth wooden panel 34 are respectively located at the corresponding positions of the installed connecting main reinforcement 70 (for example, the distance between the third wooden panel 33 and the bottom of the connecting main reinforcement 70 is 500 mm, and the distance between the fourth wooden panel 34 and the top of the connecting main reinforcement 70 is 500 mm); inserting the connecting main reinforcement 70 at the remaining positions.

[0065] After that, the concrete pouring of the special-shaped column steel bar assembly structure can be carried out.

[0066] The special-shaped column steel bar assembly structure manufactured by the above method can be installed by off-site binding in an open and flat site without being restricted by the foundation pit site, thus ensuring the quality of the steel bar binding; the special-shaped column steel bars can be bound with the base steel bars 20 and the bottom plate steel bars 11, and the construction of the concrete bottom plate 10 and other processes can be carried out simultaneously, which greatly improves the construction efficiency.

[0067] In summary, the present invention provides a special-shaped column steel bar assembly structure and a construction method thereof, which structure includes a concrete base plate 10, a cap steel bar 20, a positioning wooden plate 30, a vertical main reinforcement 40 and a transverse stirrup 50, wherein the concrete base plate 10 is provided with a base steel bar 11; the cap steel bar 20 is laid on the concrete base plate 10 and is welded and fixed to the base steel bar 11; the vertical main reinforcement 40 is L-shaped, including an upper vertical rod 41 and a bottom cross rod 42, and the bottom cross rod 42 is welded and fixed to the base steel bar 11 and the cap steel bar 20; the positioning wooden plate 30 includes a first wooden plate 31 and a second wooden plate 32 arranged in sequence along the longitudinal direction, and the upper vertical rod 41 passes through the first wooden plate 31 and the second wooden plate 32; the transverse stirrup 50 is tied to the periphery of the vertical main reinforcement 40. The present invention constructs the overall binding of the vertical main reinforcement 40 synchronously with the concrete base plate 10, and then assembles the two, thereby shortening the construction period; at the same time, the upper and lower layers of positioning wooden sleeves 30 are used to solve the problem of cross-reinforcement "fighting" caused by the flexibility and easy bending of the vertical main reinforcement 40.

[0068] Obviously, those skilled in the art can make various changes and modifications to the invention without departing from the spirit and scope of the invention. Thus, if these modifications and variations of the invention fall within the scope of the claims of the invention and their equivalents, the invention is also intended to include these modifications and variations.

Claims

1. A construction method for a special-shaped column steel bar assembly structure, characterized in that: The special-shaped column reinforcement assembly structure includes a concrete base plate, a cap reinforcement, a positioning wood sleeve, vertical main reinforcement and transverse stirrups, wherein: The concrete bottom plate is provided with bottom plate reinforcement; The cap steel bars are laid on the concrete bottom plate and fixed by welding to the bottom plate steel bars; The vertical main reinforcement is L-shaped, including an upper vertical bar and a bottom cross bar, and the bottom cross bar is welded and fixed to the bottom plate steel bars and the cap steel bars; The positioning wooden panels include a first wooden panel and a second wooden panel arranged in sequence along the longitudinal direction, and the upper vertical rod passes through the first wooden panel and the second wooden panel; The transverse stirrups are tied to the periphery of the vertical main reinforcement; The construction method comprises the following steps: Step 1: According to the construction drawing, process and manufacture the vertical main reinforcement and the transverse stirrups; Step 2: Processing and manufacturing the positioning wood sleeve according to the construction drawing and the vertical main reinforcement; Step 3: erecting a temporary supporting steel pipe scaffolding as a worker operating platform and as a temporary support for the vertical main reinforcement, the transverse stirrups and the positioning wooden sleeve, and completing the installation of the vertical main reinforcement, the transverse stirrups and the positioning wooden sleeve; Step 4: Use iron wire to tie and connect the vertical main reinforcement and the transverse stirrups to form an integral column foot reinforcement cage; Step 5: While steps 3 and 4 are being constructed, the concrete base plate is constructed simultaneously, and the cap steel bars are laid on the concrete base plate; Step 6: hoist the integral column foot reinforcement cage completed in step 4 to the designed position, and assemble and connect it with the cap reinforcement; Step 7: Remove the first wooden panel and the second wooden panel.

2. The construction method of the special-shaped column steel bar assembly structure according to claim 1, characterized in that: The special-shaped column reinforcement assembly structure also includes a cross-shaped steel column, which is arranged parallel to the vertical main reinforcement and is arranged in the middle position of the vertical main reinforcement. The positioning wooden sleeve is provided with a clearance hole for making way for the cross-shaped steel column.

3. The construction method of the special-shaped column steel bar assembly structure according to claim 1, characterized in that: The special-shaped column reinforcement assembly structure also includes a connecting main reinforcement, which is installed on the upper part of the vertical main reinforcement and extends upward.

4. The construction method of the special-shaped column reinforcement assembly structure according to claim 3, characterized in that: The special-shaped column reinforcement assembly structure also includes a third wooden sheathing plate and a fourth wooden sheathing plate, and the main reinforcement passes through the third wooden sheathing plate and the fourth wooden sheathing plate.

5. The construction method of the special-shaped column steel bar assembly structure according to claim 1, characterized in that: The edge of the cap steel bar is bent upward by 45°.

6. The construction method of the special-shaped column reinforcement assembly structure according to claim 1, characterized in that: The distance between the first wooden panel and the bottom of the upper vertical rod is 500 mm, and the distance between the second wooden panel and the top of the upper vertical rod is 500 mm.

7. The construction method of the special-shaped column reinforcement assembly structure according to claim 1, characterized in that: The upper vertical rod and the bottom cross rod are formed by bending, and the length of the bottom cross rod is 150 mm.

8. The construction method of the special-shaped column reinforcement assembly structure according to claim 2, characterized in that: After step 7, the method further includes the step of hoisting a cross-shaped steel column at the middle position of the vertical main reinforcement.

9. The construction method of the special-shaped column reinforcement assembly structure according to claim 4, characterized in that: If connecting main reinforcement needs to be installed above the vertical main reinforcement, the construction method also includes the following steps: inserting the third wooden panel and the fourth wooden panel on the protruding part of the vertical main reinforcement; installing the connecting main reinforcement on the vertical main reinforcement located at the edge or corner; lifting the third wooden panel and the fourth wooden panel so that the third wooden panel and the fourth wooden panel are respectively located at the corresponding positions of the installed connecting main reinforcement; inserting the connecting main reinforcement at the remaining positions.

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