Steel bar positioning device for super-large rigid columns and construction method thereof

Abstract

The present invention discloses a reinforcement positioning device for super-large rigid columns and its construction method, comprising: two positioning rings, each of which is connected to at least two spokes; the outer side of the lower positioning ring is connected to multiple avoidance members, the spokes being fixed to the reinforcement in the reinforced concrete column by locking members, and the outer side of the upper positioning ring being connected to multiple sets of reinforcement sleeves; an outer ring, which is sleeved on the outside of the upper positioning ring; two circles of vertical main reinforcement of the rigid column are arranged between the outer ring and the upper positioning ring; the vertical main reinforcement of the inner ring is attached to the outer side of the upper positioning ring, and part of the vertical main reinforcement of the inner ring is passed through the multiple sets of reinforcement sleeves, and the vertical main reinforcement of the outer ring is attached to the inner side of the outer ring; a bracket, which includes two cross-arranged support arms and a locking member, and the two ends of the support arms are respectively adjustable and mounted on the spokes corresponding to the positions of the two positioning rings. The present invention solves the problem that during the construction of rigid columns of large-span structures, the positioning of the longitudinal reinforcement of reinforced concrete columns is easily deviated, thereby affecting the installation of the steel column.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a steel bar positioning device for an extra-large rigid column and a construction method thereof. Background Art

[0002] Rigid columns are composed of steel columns (i.e., steel structural skeletons) and reinforced concrete structures, and are widely used in the design of structures such as airports, stadiums, and high-rise buildings. The addition of a steel structural skeleton can improve the bearing capacity of reinforced concrete columns and effectively reduce the cross-sectional dimensions of the columns, saving cost and space. Taking into account economic rationality and the stress state of the structure, the bottom of the rigid column is generally a reinforced concrete column. The rigid column is connected to the reinforced concrete column below it through longitudinal steel bars and embedded bolts. The longitudinal steel bars of the reinforced concrete column need to avoid the lugs and studs of the steel column and accurately pass through the holes reserved in the corbels. Deviations in the positioning of the longitudinal steel bars of the reinforced concrete column will cause collisions with the lugs and studs of the steel column. Moreover, since rigid columns are generally used in large-span structures, the diameter of the longitudinal steel bars in the column is large, and the position of the steel bars cannot be adjusted after the concrete is poured, which will result in the failure of the steel column to be successfully hoisted.

[0003] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0004] In order to overcome the defects of the existing technology, a steel bar positioning device for super-large rigid columns and a construction method thereof are now provided to solve the problem that during the construction of rigid columns of large-span structures, the positioning of the longitudinal steel bars of reinforced concrete columns is prone to deviation, which affects the installation of steel columns.

[0005] To achieve the above object, a steel bar positioning device for an oversized rigid column is provided, comprising:

[0006] Two positioning rings are arranged above and below, and the positioning rings are connected to at least two spokes, the spokes are arranged along the radial direction of the positioning rings, and the at least two spokes are arranged crosswise. The outer side of the lower positioning ring is connected to a plurality of avoidance members, and the positions of the avoidance members correspond one-to-one to the positions of the ear plates of the stiffening column. The spokes are fixed to the steel bars in the reinforced concrete column through locking members. The outer side of the upper positioning ring is connected to multiple groups of reinforcement sleeves, and the positions of the multiple groups of reinforcement sleeves correspond one-to-one to the positions of the brackets of the stiffening column.

[0007] The outer ring is sleeved on the outside of the upper positioning ring, and two circles of vertical main reinforcement are arranged on the outside of the rigid column. The two circles of vertical main reinforcement are arranged between the outer ring and the upper positioning ring. The vertical main reinforcement of the inner ring is attached to the outside of the upper positioning ring. Part of the vertical main reinforcement of the inner ring is passed through the multiple groups of reinforcement sleeves, and the vertical main reinforcement of the outer ring is attached to the inside of the outer ring.

[0008] The bracket includes two cross-arranged support arms and a locking piece. The two ends of the support arms are respectively and adjustably mounted on the spokes corresponding to the positions of the two positioning rings. The two positioning rings are set in the same direction by adjusting the positions of the ends of the support arms on the spokes. After the two positioning rings are set in the same direction, the locking piece is installed at the intersection of the two support arms to lock the two support arms.

[0009] Furthermore, a target disk is installed at the axis center of the lower positioning ring, and a laser aligned with the target disk is installed at the axis center of the upper positioning ring.

[0010] Furthermore, the at least two spokes are arranged vertically.

[0011] Furthermore, the locking member includes:

[0012] A hoop, mounted on the spoke;

[0013] A vertical plate is connected to the hoop, a notch is provided on one side of the vertical plate, and the horizontal steel bars at the top of the reinforced concrete column are embedded in the notch.

[0014] Furthermore, the locking member includes two clamping plates and a tie bolt, the two clamping plates are respectively pressed against opposite sides of the intersection of the two support arms, and the tie bolt is tied to the two clamping plates.

[0015] Furthermore, a sliding seat is connected to the end of the support arm, and the sliding seat is provided with a through-hole, and the spoke can be movably inserted into the through-hole.

[0016] The present invention provides a construction method for a steel bar positioning device for an ultra-large rigid column, comprising the following steps:

[0017] Set the lower locating ring at the top of the reinforced concrete column and level it;

[0018] By adjusting the positions of the ends of the two support arms of the bracket on the spokes, the upper positioning ring is horizontal and the two positioning rings are coaxially arranged;

[0019] After the two positioning rings are arranged in the same direction and coaxially, the locking member of the bracket is installed at the intersection of the two support arms to lock the two support arms;

[0020] The two circles of vertical main reinforcement on the outer side of the rigid column are arranged between the outer ring and the upper positioning ring, so that the vertical main reinforcement of the inner circle is in contact with the outer side of the upper positioning ring, part of the vertical main reinforcement of the inner circle is passed through multiple sets of reinforcement sleeves, and the vertical main reinforcement of the outer circle is in contact with the inner side of the outer ring. The lower parts of the two circles of vertical main reinforcement extend below the positioning ring of the lower layer.

[0021] Stirrups are arranged at the lower parts of the two circles of vertical main reinforcement;

[0022] Remove the steel bar positioning device used for the oversized stiffening columns;

[0023] Concrete for the reinforced concrete column is poured, and the concrete is coated on the lower parts of the two circles of vertical main reinforcement and the stirrups to consolidate and form the reinforced concrete column.

[0024] The beneficial effect of the present invention is that the steel bar positioning device for super-large rigid columns of the present invention is composed of two layers of positioning rings, the lower positioning ring is mainly used for positioning, adjusting the level, fixing and avoiding the ear plate of the rigid column, and the upper positioning ring is mainly used for defining the boundary of the vertical steel bars of the rigid column, the inner ring vertical steel bars passing through the corbel and the position of the core column steel bars. First, the bracket is leveled and centered so that the two layers of positioning rings are arranged in parallel and coaxially to ensure that the position of the column is consistent with the design, to ensure that the entire device is level, to avoid situations such as the device tilting, and to avoid positioning deviations. After the device is positioned, the device is fixed to the steel bars of the reinforced concrete column by the locking piece at the bottom. The annular space between the outer ring and the positioning ring restricts the vertical steel bars of the rigid column from entering the main body of the steel column and from exceeding the reinforced concrete protective layer of the rigid column. The movable and detachable steel bar positioning components (ear plates, bolts, corbel steel bars and middle core column) are used to accurately define the position of the steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0026] Figure 1 Schematic diagram of the structure of a steel bar positioning device for an extra-large rigid column according to an embodiment of the present invention.

[0027] Figure 2 This is a front view of a steel bar positioning device for an extra-large rigid column according to an embodiment of the present invention.

[0028] Figure 3 Schematic diagram of the structure of the upper positioning ring of an embodiment of the present invention.

[0029] Figure 4 Schematic diagram of the lower positioning ring structure of an embodiment of the present invention.

[0030] Figure 5Schematic diagram of the structure of the avoidance member according to an embodiment of the present invention.

[0031] Figure 6 Schematic diagram of the structure of the locking member according to an embodiment of the present invention.

[0032] Figure 7 Schematic diagram of the structure of the reinforcement sleeve according to an embodiment of the present invention.

[0033] Figure 8 Schematic diagram of the structure of a locking member according to an embodiment of the present invention.

[0034] Figure 9 Schematic diagram of the use status of the steel bar positioning device for super-large rigid columns according to an embodiment of the present invention.

[0035] Figure 10 Schematic diagram of the structure of the rigid column according to an embodiment of the present invention. DETAILED DESCRIPTION

[0036] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0037] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] Reference Figures 1 to 10 As shown, the present invention provides a steel bar positioning device for an extra-large rigid column, comprising: a positioning ring 1, an outer ring 2, and a bracket 3.

[0039] There are two positioning rings 1. The two positioning rings are arranged one above the other.

[0040] The positioning ring 1 is connected to at least two spokes 11. The spokes 11 are arranged along the radial direction of the positioning ring 1. At least two spokes 11 are arranged crosswise. Further, at least two spokes 11 are arranged vertically.

[0041] In this embodiment, there are four spokes, which are arranged in a cross-shaped pattern, and the ends of the four spokes are arranged at equal intervals.

[0042] See Figure 4 、 Figure 5 and Figure 10As shown, multiple avoidance members 12 are connected to the outer side of the lower positioning ring 1. The shape and size of the avoidance members are adapted to the shape and size of the lugs on the stiffening column. Furthermore, the positions of the avoidance members 12 correspond one-to-one with the positions of the lugs 74 on the stiffening column 7. The avoidance members are adjustable and mounted on the positioning ring via a clamp.

[0043] See Figure 1 and Figure 6 As shown, the spokes 11 are fixed to the steel bars in the reinforced concrete column (i.e., the horizontal steel bars at the top of the reinforced concrete column) through locking members 13. In this embodiment, the horizontal steel bars at the top of the reinforced concrete column are the parts of the horizontal main bars of the beam extending into the reinforced concrete column.

[0044] As a preferred embodiment, a positioning disc is mounted on the spokes of the lower positioning ring. The positioning disc has multiple holes. The positioning disc is positioned at the intersection of the multiple spokes of the lower positioning ring. The positioning disc is concentric with the lower positioning ring.

[0045] See Figure 1 、 Figure 3 、 Figure 7 and Figure 9 As shown, multiple sets of reinforcement sleeves 14 are connected to the outer side of the upper positioning ring 1. The positions of the multiple sets of reinforcement sleeves 14 correspond one-to-one with the positions of the corbels 73 of the stiffening column 7. Each set of reinforcement sleeves includes multiple reinforcement sleeves. The multiple reinforcement sleeves are arranged along the circumferential direction of the positioning ring.

[0046] In this embodiment, a plurality of ear plates are provided at the bottom of the rigid column. The plurality of ear plates are used to install embedded screws. A corbel is installed on the upper part of the rigid column. The corbel is used to connect the structural beam. Two circles of vertical steel bars are provided on the outside of the rigid column. The two circles of vertical steel bars include an inner circle of vertical steel bars and an outer circle of vertical steel bars. Among them, the reinforcement sleeve is provided for the vertical steel bars corresponding to the inner circle of the corbel. The vertical steel bars of part of the inner circle pass through the corbel. The core column steel bar is also provided inside the rigid column. The position of the core column steel bar corresponds to the position of the perforation of the positioning plate. The reinforcement sleeve is adjustable on the positioning ring through the position of the clamp.

[0047] The outer ring 2 is sleeved on the outside of the upper positioning ring 1. An annular space is formed between the outer ring and the outer side of the upper positioning ring. This annular space is used to pass through the two rings of vertical steel bars and to limit and position the two rings of vertical steel bars.

[0048] The outer ring is arranged concentrically with the upper positioning ring. Specifically, one end of the spoke on the upper positioning ring extends to the outside of the upper positioning ring and is connected to the outer ring. Two circles of vertical main reinforcement are arranged on the outside of the rigid column 7. The two circles of vertical main reinforcement are arranged between the outer ring 2 and the upper positioning ring 1. The vertical main reinforcement of the inner ring is attached to the outside of the upper positioning ring 1. Part of the vertical main reinforcement of the inner ring is inserted into multiple sets of reinforcement sleeves 14. The vertical main reinforcement of the outer ring is attached to the inner side of the outer ring 2.

[0049] The bracket 3 includes a support arm 31 and a locking member 32 .

[0050] Specifically, there are two support arms 31 , which are arranged crosswise. The two ends of the support arms 31 are respectively and adjustably mounted on the spokes 11 corresponding to the positions of the two positioning rings 1 .

[0051] See Figure 1 and Figure 9 As shown, during use, the lower locating ring is positioned at the top of the reinforced concrete column below the rigid column. Two rings of vertical reinforcement for the rigid column are inserted into this annular space. The lower ends of the vertical reinforcement extend into the concrete casting space of the reinforced concrete column. After the concrete of the reinforced concrete column is poured, the lower portions of the two rings of vertical reinforcement are embedded in the reinforced concrete column. Later, the rigid column is hoisted and concrete is poured outside of the rigid column.

[0052] In this embodiment, there are two brackets, each connected between corresponding spokes of the two positioning rings. Specifically, one bracket is connected between spokes arranged along a first radial direction on the two positioning rings; another bracket is connected between spokes arranged along a second radial direction on the two positioning rings. The first radial direction is perpendicular to the second radial direction.

[0053] During use, the positions of the ends of the support arms 31 on the spokes 11 are adjusted so that the two positioning rings 1 are arranged in the same direction (i.e., leveling and alignment are performed so that the two positioning rings are arranged in parallel and coaxially). After the two positioning rings 1 are arranged in the same direction, the locking member 32 is installed at the intersection of the two support arms 31 to lock the two support arms 31.

[0054] In a preferred embodiment, a target disk 4 is mounted at the axis of the lower positioning ring 1. A laser is mounted at the axis of the upper positioning ring 1, aligned with the target disk 4. During operation, the laser emits a laser beam coaxially aligned with the upper positioning ring. When the laser beam strikes the target disk, it indicates that the two positioning rings are coaxially aligned. Bubble levels are also mounted on both positioning rings.

[0055] Continue to combine Figure 6 As shown, the locking member 13 includes a hoop and a vertical plate.

[0056] The hoop is mounted on the spoke 11. The vertical plate is connected to the hoop. A notch is provided on one side of the vertical plate. The horizontal steel bar 6 at the top of the reinforced concrete column is embedded in the notch.

[0057] See Figure 8 As shown, the locking member 32 includes two clamping plates and a tie bolt. The two clamping plates are respectively pressed against the opposite sides of the intersection of the two support arms 31. The tie bolt is tied to the two clamping plates.

[0058] The end of the support arm 31 is connected to a sliding seat. The sliding seat is provided with a through hole. The spoke 11 can be movably inserted into the through hole.

[0059] The present invention provides a construction method for a steel bar positioning device for an ultra-large rigid column, comprising the following steps:

[0060] S1. Place the lower positioning ring 1 on the top of the reinforced concrete column and level it, and fix the locking member 13 to the steel bars in the reinforced concrete column.

[0061] S2. Adjust the positions of the ends of the two support arms 31 of the bracket 3 on the spokes 11 so that the upper positioning ring 1 is in a horizontal state and the two positioning rings 1 are coaxially arranged.

[0062] S3. After the two positioning rings 1 are arranged in the same direction and coaxially, the locking member 32 of the bracket 3 is installed at the intersection of the two support arms 31 to lock the two support arms 31.

[0063] S4. The two circles of vertical main reinforcement on the outer side of the rigid column 7 are arranged between the outer ring 2 and the upper positioning ring 1, so that the vertical main reinforcement 71 of the inner circle fits the outer side of the upper positioning ring 1, part of the vertical main reinforcement 71 of the inner circle is passed through multiple groups of reinforcement sleeves 14, and the vertical main reinforcement 72 of the outer circle fits the inner side of the outer ring 2, and the lower part of the two circles of vertical main reinforcement extends to the bottom of the positioning ring 1 of the lower layer.

[0064] S5. Install stirrups at the lower part of the two circles of vertical main reinforcement.

[0065] S6. Remove the steel bar positioning device for the super-large rigid column 7.

[0066] S7. Pour concrete for the reinforced concrete column. The concrete is wrapped around the lower part of the two circles of vertical main reinforcement and the stirrups to consolidate and form the reinforced concrete column.

[0067] The steel bar positioning device for super-large rigid columns of the present invention is composed of two layers of positioning rings, the lower layer of positioning rings is mainly used for positioning, adjusting the level, fixing and avoiding the ear plates of the rigid columns, and the upper layer of positioning rings is mainly used for defining the boundaries of the vertical steel bars of the rigid columns, the inner ring of vertical steel bars passing through the corbels and the position of the core column steel bars. First, the laser (laser emitter) and the level bubble in the middle of the device are used to align the entire device with the center line of the column to ensure that the position of the column is consistent with the design. Adjusting the level bubble can ensure that the entire device is level, avoid situations such as the device tilting, and avoid positioning deviations. After the device is positioned, the device is fixed to the steel bars of the reinforced concrete column by the locking piece at the bottom. The annular space between the outer ring and the positioning ring restricts the vertical steel bars of the rigid column from entering the main body of the steel column and from exceeding the reinforced concrete protective layer of the rigid column. The movable and detachable steel bar positioning components (ear plates, bolts, corbel steel bars and the middle core column) are used to accurately define the position of the steel bars.

[0068] The steel bar positioning device for super-large rigid columns of the present invention forms a rotatable steel bar positioning device that can align the axis, adjust the level and be fixed on the steel bars of the reinforced concrete column through structures such as a bracket and a positioning ring, thereby greatly improving the accuracy of the positioning of the rigid column steel bars and reducing labor and construction costs.

[0069] The double-layer positioning ring structure of the reinforcement positioning device for the super-large rigid column of the present invention effectively ensures the stability of the vertical reinforcement of the rigid column inserted into the reinforced concrete column.

[0070] The steel bar positioning device for super-large rigid columns of the present invention realizes the rigid column steel bar positioning function with a simple and rotatable structure, is easy to carry and manually operate, and has a built-in axis positioning structure to ensure construction efficiency.

[0071] The steel bar positioning device for super-large rigid columns of the present invention solves the problem of rigid column steel bar positioning through a simple device, reduces the situation in which traditional steel bar positioning is prone to deviation and affects the later rigid column hoisting, and solves the problem that the number of steel bars that can be positioned is small, the weight is large, and the operation is inconvenient when using steel structure embedded parts. It also adopts a movable positioning component, which is fastened with bolts and can be adjusted at will according to usage requirements, making it easy to use in a turnover manner.

[0072] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features having similar functions disclosed in this application.

Claims

1. A steel bar positioning device for super-large rigid columns, characterized in that: include: Two positioning rings are arranged above and below, and the positioning rings are connected to at least two spokes, the spokes are arranged along the radial direction of the positioning rings, and the at least two spokes are arranged crosswise. The outer side of the lower positioning ring is connected to a plurality of avoidance members, and the positions of the avoidance members correspond one-to-one to the positions of the ear plates of the stiffening column. The spokes are fixed to the steel bars in the reinforced concrete column through locking members. The outer side of the upper positioning ring is connected to multiple groups of reinforcement sleeves, and the positions of the multiple groups of reinforcement sleeves correspond one-to-one to the positions of the brackets of the stiffening column. The outer ring is sleeved on the outside of the upper positioning ring, and two circles of vertical main reinforcement are arranged on the outside of the rigid column. The two circles of vertical main reinforcement are arranged between the outer ring and the upper positioning ring. The vertical main reinforcement of the inner ring is attached to the outside of the upper positioning ring. Part of the vertical main reinforcement of the inner ring is passed through the multiple groups of reinforcement sleeves, and the vertical main reinforcement of the outer ring is attached to the inside of the outer ring. The bracket includes two cross-arranged support arms and a locking member, wherein the ends of the support arms are respectively adjustably mounted on spokes corresponding to the positions of the two positioning rings, and the positions of the ends of the support arms on the spokes are adjusted so that the two positioning rings are arranged in the same direction. After the two positioning rings are arranged in the same direction, the locking member is mounted at the intersection of the two support arms to lock the two support arms; The locking member includes: a hoop, mounted on the spoke; A vertical plate is connected to the hoop, and a notch is opened on one side of the vertical plate, and the horizontal steel bars at the top of the reinforced concrete column are embedded in the notch; The locking member includes two clamping plates and a tie bolt, wherein the two clamping plates are respectively pressed against opposite sides of the intersection of the two support arms, and the tie bolt is tied to the two clamping plates; The end of the support arm is connected with a sliding seat, the sliding seat is provided with a through hole, and the spoke can be movably inserted into the through hole.

2. The steel bar positioning device for super-large rigid columns according to claim 1, characterized in that: A target disk is installed at the axis center of the positioning ring of the lower layer, and a laser aligned with the target disk is installed at the axis center of the positioning ring of the upper layer.

3. The steel bar positioning device for super-large rigid columns according to claim 1, characterized in that: The at least two spokes are arranged vertically.

4. A construction method for a steel bar positioning device for an ultra-large rigid column according to any one of claims 1 to 3, characterized in that: The following steps are involved: Set the lower locating ring at the top of the reinforced concrete column and level it; By adjusting the positions of the ends of the two support arms of the bracket on the spokes, the upper positioning ring is horizontal and the two positioning rings are coaxially arranged; After the two positioning rings are arranged in the same direction and coaxially, the locking member of the bracket is installed at the intersection of the two support arms to lock the two support arms; The two circles of vertical main reinforcement on the outer side of the rigid column are arranged between the outer ring and the upper positioning ring, so that the vertical main reinforcement of the inner circle is in contact with the outer side of the upper positioning ring, part of the vertical main reinforcement of the inner circle is passed through multiple sets of reinforcement sleeves, and the vertical main reinforcement of the outer circle is in contact with the inner side of the outer ring. The lower parts of the two circles of vertical main reinforcement extend below the positioning ring of the lower layer. Stirrups are arranged at the lower parts of the two circles of vertical main reinforcement; Remove the steel bar positioning device used for the oversized stiffening columns; Concrete for the reinforced concrete column is poured, and the concrete is coated on the lower parts of the two circles of vertical main reinforcement and the stirrups to consolidate and form the reinforced concrete column.

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