Adjustable steel bar positioning clamp for special-shaped tower column

Abstract

The utility model discloses an adjustable steel bar positioning fixture for a special-shaped tower column, which relates to the field of bridge construction and comprises a fixed-length section fixture used for being fixed on a stiff framework of the tower column. The adjusting section clamp comprises a plurality of connecting and fixing units and a plurality of rib clamping pieces detachably arranged on the connecting and fixing units, and second rib clamping grooves are formed in the rib clamping pieces; wherein the connecting and fixing units are detachably connected, and the two connecting and fixing units, located on the outer side, in the adjusting section clamp are detachably connected with the two sizing section clamps correspondingly. The connecting and fixing units are spliced according to the steel bar spacing and steel bar arrangement positions of the special-shaped tower column of a certain section, then the corresponding number of the steel bar clamping pieces is installed according to the steel bar number of the special-shaped tower column at the stage, main steel bars of the special-shaped tower column at different stages are fixed, and the problems that sizing machining needs to be conducted on each construction section of the special-shaped tower column, and the machining efficiency is high are solved. And waste is caused while on-site processing tasks are increased.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, and particularly relates to an adjustable steel bar positioning fixture for a special-shaped tower column. Background Art

[0002] In the construction of bridge tower columns, due to the high construction segments of the tower columns, sectional construction is usually carried out. During the sectional construction process, the binding of the main steel bars of the tower column is prone to dislocation and deformation, and it is difficult to control the spacing of the main steel bars. Therefore, steel bar fixtures are used in each construction segment of the tower column to position the main steel bars of the tower column, so as to improve the steel bar binding speed and binding quality, thereby ensuring the construction quality of the special-shaped tower column and reducing the potential safety hazards of the main bridge.

[0003] Currently, the steel bar fixture is usually set as a steel plate, and a plurality of notches for clamping the main steel bars are spacedly arranged on the steel plate. During the construction of the tower column, a single steel bar is clamped into the notch of the steel plate to fix the main steel bar of the tower column.

[0004] The tower column is the main stress-bearing part of long-span bridges such as cable-stayed bridges and suspension bridges, and usually needs to bear forces and moments from all aspects. Therefore, in order to balance stress, economy and landscape effect, during the actual construction process of bridge tower columns, the tower column is usually designed with a variable cross-section, that is, a larger cross-section is adopted at the place with a larger bending moment, which can increase the stiffness and bearing capacity of this part, so as to better resist external forces and maintain the stability of the structure; while a smaller cross-section is adopted at the place with a smaller bending moment, which can reduce the use of materials and reduce the cost. The variable cross-section tower column is also called a special-shaped tower column. During the construction process of the special-shaped tower column, the spacing and quantity of the main steel bars of the special-shaped tower column also increase or decrease continuously with the change of the cross-section.

[0005] When the cross-section of the special-shaped tower column changes, although the quantity and spacing of the main steel bars of the tower column stiffening skeleton that play a fixing role at the chamfer and the edge do not change, the quantity and spacing of the steel bars at the circumferential side length of the special-shaped tower column in each section are different. When using the steel bar fixture to clamp the main steel bars of the special-shaped tower column, it is necessary to carry out sizing processing for each construction section of the special-shaped tower column, and it cannot be recycled, which increases the on-site processing tasks and causes great waste. Summary of the Utility Model

[0006] This application provides an adjustable steel bar positioning fixture for a special-shaped tower column, which can solve the technical problems existing in the prior art that sizing processing needs to be carried out for each construction section of the special-shaped tower column, it cannot be recycled, which increases the on-site processing tasks and causes waste.

[0007] An embodiment of this application provides an adjustable steel bar positioning fixture for a special-shaped tower column, which includes:

[0008] A sizing section fixture, which is used to be fixed on the tower column stiffening skeleton;

[0009] Adjusting section fixture, the adjusting section fixture includes a plurality of connection and fixing units, and a plurality of rib members detachably arranged on the connection and fixing units, and a second rib groove is formed on the rib members;

[0010] Wherein, the connection and fixing units are detachably connected to each other, and the two connection and fixing units located on the outer side in the adjusting section fixture are respectively detachably connected to the two fixed-length section fixtures.

[0011] In one embodiment, a first connection hole is arranged at the end of the connection and fixing unit, and adjacent connection and fixing units are detachably connected through a first connecting piece arranged in the first connection hole.

[0012] In one embodiment, the first connecting piece is a splicing bolt.

[0013] In one embodiment, a second connection hole is arranged at the end of the fixed-length section fixture, and the adjacent connection and fixing unit and the fixed-length section fixture are detachably connected through a second connecting piece arranged in the second connection hole.

[0014] In one embodiment, the second connecting piece is a connecting bolt.

[0015] In one embodiment, a plurality of third connection holes are spaced apart on the connection and fixing unit, and a third connecting piece for fixing a single rib member is arranged on the third connection hole.

[0016] In one embodiment, the third connecting piece is a fixing bolt.

[0017] In one embodiment, adjacent third connection holes are arranged at intervals of a fixing station on a rib member.

[0018] In one embodiment, the fixed-length section fixture includes a fixed-length section fixture unit at the chamfer and a fixed-length section fixture unit at the edge. A plurality of first rib grooves are spaced apart on the fixed-length section fixture unit at the chamfer and the fixed-length section fixture unit at the edge. The fixed-length section fixture unit at the chamfer is used to be fixed at the chamfer of the tower column stiffening skeleton, and the fixed-length section fixture unit at the edge is used to be fixed at the edge of the tower column stiffening skeleton.

[0019] In one embodiment, both the fixed-length section fixture unit at the chamfer and the fixed-length section fixture unit at the edge are integrally formed by positioning angle steel.

[0020] The beneficial effects brought by the technical solution provided by the embodiment of the present application include:

[0021] By adding an adjusting section fixture, which is detachably spliced by a number of connection and fixing units, when tying the main reinforcement bars of a certain section of the special-shaped tower column, the connection and fixing units can be assembled according to the steel bar spacing and the steel bar setting position of the special-shaped tower column in this section, and then the corresponding number of stirrup bars can be installed according to the number of steel bars of the special-shaped tower column at this stage to fix the main reinforcement bars at different stages of the special-shaped tower column, solving the problem that it is necessary to carry out sizing processing for each construction section of the special-shaped tower column, which cannot be recycled, increasing the on-site processing tasks and causing waste. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is the overall structure diagram of an adjustable steel bar positioning fixture for a special-shaped tower column in the present application;

[0024] Figure 2 It is the structural schematic diagram of the connection and fixing unit with stirrup bars fixed in the present application;

[0025] Figure 3 It is the structural schematic diagram of the sizing section fixture unit at the chamfer in the present application;

[0026] Figure 4 It is the structural schematic diagram of another form of the sizing section fixture unit at the chamfer in the present application;

[0027] In the figure: 1. Sizing section fixture; 11. Second connecting piece; 12. Sizing section fixture unit at the chamfer; 13. Sizing section fixture unit at the edge; 14. First stirrup bar groove; 2. Adjusting section fixture; 21. Connection and fixing unit; 211. First connecting piece; 22. Stirrup bar; 221. Second stirrup bar groove; 23. Third connecting piece. Detailed Description of the Embodiments

[0028] In order to enable those skilled in the art to better understand the solutions of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0029] The embodiment of the present application provides an adjustable steel bar positioning fixture for special-shaped tower columns, which can solve the problems that it is necessary to carry out sizing processing for each construction section of the special-shaped tower column, cannot be recycled, increases the on-site processing tasks and causes waste at the same time.

[0030] Refer to Figure 1 The overall structure diagram of an adjustable steel bar positioning fixture for special-shaped tower columns in the present application and Figure 2 The structural schematic diagram of the connection and fixing unit with the steel bar clamping member fixed in the present application. An adjustable steel bar positioning fixture for special-shaped tower columns disclosed in the present application includes a sizing section fixture 1 and an adjustment section fixture 2. The sizing section fixture 1 is used to be fixed on the tower column stiffening skeleton with unchanging quantity and spacing, and the adjustment section fixture 2 is used to be fixed on the main steel bars whose quantity and spacing will change with the variable cross-section of the tower column. The adjustment section fixture 2 includes a number of connection and fixing units 21. A number of steel bar clamping members 22 are detachably arranged on a single connection and fixing unit 21. A second steel bar clamping groove 221 is formed on the steel bar clamping member 22, and the size of the second steel bar clamping groove 221 is adapted to the size of the tower column main steel bars. The second steel bar clamping groove 221 is used to clamp the tower column main steel bars. The steel bar clamping member 22 is detachably fixed on the connection and fixing unit 21. When the quantity of the tower column main steel bars changes in a certain stage of the special-shaped tower column, the steel bar clamping member 22 can be quickly installed and disassembled to facilitate adapting to different quantities of tower column main steel bars; the connection and fixing units 21 are also detachably connected to each other, so that when the spacing between the tower column main steel bars changes, the connection and fixing unit 21 can be adjusted in time; the connection and fixing units 21 are directly spliced with each other, and the two connection units located on the outermost side are respectively detachably connected to the two sizing section fixtures 1, so that a closed loop is formed between the adjustment section fixture 2 and the sizing section fixture 1, and then different sections of the special-shaped tower column can be clamped.

[0031] When carrying out the section construction of the special-shaped tower column, first fix the sizing section fixture 1 on the tower column stiffening skeleton, fix the connection and fixing units 21 at both ends of the sizing section fixture 1 respectively, and then splice a number of connection and fixing units 21 at different angles according to the specific quantity and spacing of the tower column main steel bars, and the main steel bar clamping of a certain stage of the special-shaped tower column can be completed. When building the next stage of the tower column, remove the sizing section fixture 1 and the adjustment section fixture 2, and repeat the above operations to complete the construction project of the overall special-shaped tower column with a set of adjustable steel bar positioning fixtures for special-shaped tower columns. It can adapt to various special-shaped tower columns with variable cross-sections and can be recycled, reducing waste.

[0032] First connection holes are provided at both ends of the connection and fixing units 21, and first connection members 211 are provided in the first connection holes. Adjacent connection and fixing units 21 are spliced ​​together through the first connection members 211. In this embodiment, the first connection members 211 are specifically splicing bolts. When splicing adjacent connection and fixing units 21, the angle between adjacent connection and fixing units 21 is first adjusted according to the spacing between the main reinforcements on the variable cross-section of the tower column, and then the splicing bolts are passed through the first connection holes of the two adjacent connection and fixing units 21. The splicing bolts are tightened to complete the splicing of the connection and fixing units 21. The structure is simple and easy to assemble and disassemble.

[0033] A second connection hole is provided at the end of the fixed-length segment fixture 1, and a second connection member 11 is inserted into the second connection hole. The adjacent connection fixing units 21 are connected to the fixed-length segment fixture 1 through the second connection member 11. In this embodiment, the second connection member 11 is a connection bolt, and the size of the first connection hole is the same as the size of the second connection hole. When the fixed-length segment fixture 1 and the connection fixing unit 21 are spliced, the connection bolt passes through the first connection hole and the second connection hole at the same time, and then the connection bolt is tightened to complete the connection between the connection fixing unit 21 and the fixed-length segment fixture 1. The structure is simple, easy to disassemble and assemble, and it is easy to adjust the connection angle between the connection fixing unit 21 and the fixed-length segment fixture 1.

[0034] In other embodiments, a first connecting hole may be provided at one end of the two outermost connecting and fixing units 21 adjacent to the sizing section fixture 1 to accommodate the connection between the connecting and fixing units 21 and the sizing section fixture 1 when the first connecting hole and the second connecting hole have different sizes.

[0035] A plurality of third connection holes are provided at intervals on a single connection fixing unit 21, and a third connection member is provided on the third connection hole, and the clamping member 22 is fixed to the connection fixing unit 21 through the third connection member. In this embodiment, the third connection member is a fixing bolt, and a fixing station is provided on the clamping member 22. The fixing bolt passes through the fixing station and the third connection hole at the same time to fix the clamping member 22 to the connection fixing unit 21, which has a simple structure and is easy to disassemble and install.

[0036] In this embodiment, two fixing positions are provided on the clamp member 22 to make the installation of the clamp member 22 more stable. In order to further improve the installation freedom of the clamp member 22, the third connecting holes are arranged with a fixing position on the clamp member 22 so that the clamp member 22 can be arbitrarily installed on two adjacent third connecting holes on the connecting fixing unit 21.

[0037] In the process of erecting special-shaped tower columns, according to the erection requirements of different situations, the tower column rigid skeleton includes the tower column chamfer and the tower column edge. In order to adapt to the tower column rigid skeleton in different parts, refer to Figure 1The overall structure diagram of an adjustable steel bar positioning fixture for a special-shaped tower column in this application. The fixed-length section fixture 1 includes a fixed-length section fixture unit at the chamfer and a fixed-length section fixture unit at the edge. A plurality of first steel bar grooves 14 are spaced apart on both the fixed-length section fixture unit at the chamfer and the fixed-length section fixture unit at the edge. The first steel bar grooves 14 are adapted to the size of the main steel bars that make up the skeleton of the tower column. The fixed-length section fixture unit at the chamfer is fixed at the bending part of the tower column's stiffening skeleton, and the fixed-length section fixture unit at the edge is fixed at the edge of the tower column's stiffening skeleton.

[0038] In order to adapt to different chamfers with different shapes in different tower column stiffening skeletons, refer to Figure 3 The structural schematic diagram of the fixed-length section fixture unit at the chamfer in this application and Figure 4 The structural schematic diagram of another form of the fixed-length section fixture unit at the chamfer in this application. The fixed-length section fixture 1 at the chamfer has different numbers of bending parts.

[0039] In this embodiment, the fixed-length section fixture unit at the chamfer, the fixed-length section fixture unit at the edge, and the connection and fixing unit 21 are all integrally made of angle steel to enhance the strength of the overall adjustable steel bar positioning fixture for the special-shaped tower column. The steel bar clamping member 22 is made of steel plate to stably support the main steel bars.

[0040] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application. Unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] It should be noted that in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0042] The above are only specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application will not be limited to these embodiments shown herein, but rather will conform to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. An adjustable steel bar positioning fixture for a special-shaped tower column, characterized in that: It includes: A fixed-length section fixture (1), wherein the fixed-length section fixture (1) is used to be fixed on a tower column rigid frame; An adjustment section fixture (2), the adjustment section fixture (2) comprising a plurality of connection fixing units (21), and a plurality of clamping members (22) detachably arranged on the connection fixing units (21), wherein the clamping members (22) are provided with a second clamping groove (221); The connecting and fixing units (21) are detachably connected to each other, and the two connecting and fixing units (21) located on the outer sides of the adjustment section fixture (2) are detachably connected to the two fixed-length section fixtures (1) respectively.

2. The adjustable steel bar positioning fixture for a special-shaped tower column according to claim 1, characterized in that: A first connection hole is provided at the end of the connection and fixing unit (21), and adjacent connection and fixing units (21) are detachably connected via a first connection piece (211) provided in the first connection hole.

3. The adjustable steel bar positioning fixture for a special-shaped tower column according to claim 2, characterized in that: The first connecting member (211) is a splicing bolt.

4. The adjustable steel bar positioning fixture for a special-shaped tower column according to claim 1, characterized in that: A second connection hole is provided at the end of the cut-length section fixture (1), and adjacent connecting and fixing units (21) are detachably connected to the cut-length section fixture (1) via a second connecting piece (11) provided in the second connection hole.

5. The adjustable steel bar positioning fixture for a special-shaped tower column according to claim 4, characterized in that: The second connecting member (11) is a connecting bolt.

6. The adjustable steel bar positioning fixture for a special-shaped tower column according to claim 1, characterized in that: A plurality of third connection holes are provided at intervals on the connection and fixing unit (21), and a third connection piece (23) for fixing a single clamping piece (22) is provided on the third connection hole.

7. The adjustable steel bar positioning fixture for a special-shaped tower column according to claim 6, characterized in that: The third connecting member (23) is a fixing bolt.

8. The adjustable steel bar positioning fixture for a special-shaped tower column according to claim 6, characterized in that: Adjacent third connection holes are spaced apart by a fixed station on the clamping rib (22).

9. The adjustable steel bar positioning fixture for a special-shaped tower column according to claim 1, characterized in that: The length-fixing section fixture (1) comprises a chamfered length-fixing section fixture unit (12) and an edge length-fixing section fixture unit (13); a plurality of first clamping grooves (14) are provided at intervals on the chamfered length-fixing section fixture unit (12) and the edge length-fixing section fixture unit (13); the chamfered length-fixing section fixture unit (12) is used to be fixed at the chamfer of a tower column rigid frame, and the edge length-fixing section fixture unit (13) is used to be fixed at the edge of the tower column rigid frame.

10. The adjustable steel bar positioning fixture for a special-shaped tower column according to claim 9, characterized in that: The chamfering sizing section fixture unit (12) and the edge sizing section fixture unit (13) are both integrally made of positioning angle steel.

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