Novel assembly type steel structure arch foot reinforcing steel bar fixing frame

Abstract

The utility model relates to the field of bridge engineering, and discloses a novel assembly type steel structure arch foot reinforcing steel bar fixing frame which comprises a pier, a bottom frame is arranged on a slope of the pier, a reinforcing steel bar fixing frame is arranged on the top face of the bottom frame and comprises fixing blocks, the fixing blocks are arranged in a left row and a right row, and first transverse reinforcing steel bars are welded between the left fixing block and the right fixing block; first connecting blocks are welded to the two ends of the first transverse steel bars; according to the device, it is ensured that follow-up steel bars of the skewback are welded and positioned firmly, the second transverse steel bars between the two first connecting blocks and the third transverse steel bars between the two second connecting blocks are welded according to the designed positions, and therefore the transverse steel bars can be welded in a stacked mode one by one; and the front connecting block and the rear connecting block are welded through the connecting steel bars, the lower steel bars can be fixed in a spot welding mode, and the phenomenon that when the upper steel bars are constructed, the lower steel bars deform greatly is avoided.

Description

Technical Field

[0001] The present application relates to the field of bridge engineering, and in particular to a novel assembled steel structure arch foot reinforcement fixing frame. Background Art

[0002] Steep valleys are widely distributed in southwest my country. The slope height in southwest China ranges from hundreds of meters to thousands of meters, with an average slope of 40° to 80°. Steel tube arch bridge structures are often used to cross such high mountain valleys. The loads of the arch bridge itself and the upper part are transmitted to the bedrock through the arch foundation, which changes the stress distribution in the slope to a certain extent, and may cause deformation that is not conducive to the stability of the bridge foundation. Therefore, it is necessary to reasonably determine the organic combination of the arch foundation and the rock stratum and correctly evaluate its stability, so as to reasonably utilize the rock mass and achieve reasonable line selection and design of the bridge project.

[0003] When pouring the concrete of the arch foundation, the steel bars are pre-buried according to the pier body steel bar layout diagram and the arch ring steel bar layout diagram. However, the steel bar fixing frame commonly used in bridge engineering has the problem of inaccurate positioning under the traditional construction technology, which makes it easy for the arch frame to become unstable and overturned under the surrounding rock load, and there is a risk of uneven force, resulting in the overall bearing capacity of the arch frame failing to meet the design requirements. Utility Model Content

[0004] In order to solve the problem of inaccurate positioning of the steel bar fixing frame commonly used in current bridge engineering under traditional construction technology, which easily makes the arch frame prone to instability and overturning under the action of surrounding rock load and the risk of uneven force, the present application provides a new type of assembled steel structure arch foot steel bar fixing frame.

[0005] The present application provides a novel assembled steel structure arch foot steel bar fixing frame adopts the following technical solution:

[0006] A novel assembled steel structure arch foot steel bar fixing frame comprises a bridge pier, a base frame is provided on the slope of the bridge pier, a steel bar fixing frame is provided on the top surface of the base frame, the steel bar fixing frame comprises fixing blocks, the fixing blocks are arranged in two left and right rows, each row of fixing blocks is provided with a plurality of fixing blocks, a first transverse steel bar is welded between the left and right fixing blocks, a first connecting block is welded at both ends of the first transverse steel bar, a second transverse steel bar is welded between two of the first connecting blocks, a second connecting block is welded at both ends of the second transverse steel bar, a third transverse steel bar is welded between two of the second connecting blocks, and a third connecting block is welded at both ends of the third transverse steel bar.

[0007] Preferably, the top surface of each of the fixed blocks is welded with a first vertical steel bar, the top surface of each of the first connecting blocks is welded with a second vertical steel bar, the top surface of each of the second connecting blocks is welded with a third vertical steel bar, and the top surface of each of the third connecting blocks is welded with a fourth vertical steel bar.

[0008] Preferably, a first connecting steel bar is welded between the front and rear two first connecting blocks, a second connecting steel bar is welded between the front and rear two second connecting blocks, and a third connecting steel bar is welded between the front and rear two third connecting blocks.

[0009] Preferably, the base frame includes columns, four of which are provided and distributed in a rectangular shape, a second connecting frame is welded between the front and rear columns, a first connecting frame is welded between the left and right columns, a third connecting frame is provided between the two first connecting frames, and a plurality of second connecting frames are provided and distributed equidistantly in a horizontal shape.

[0010] Preferably, a rectangular plate is welded to the bottom surface of each of the columns, and insertion rods are inserted through the four corners of the rectangular plate.

[0011] Preferably, the outer wall of the first transverse steel bar located between the two first connecting blocks is welded with a plurality of positioning blocks, each of the positioning blocks is welded to the third connecting frame on the bottom surface, and the front and rear positioning blocks are welded to each other through a fourth connecting steel bar.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] The two rows of fixing blocks are welded to the two second connecting frames respectively. During the welding process of each fixing block and the second connecting frame, the welding and positioning of the first transverse steel bar are also completed. At the same time, the position of the positioning block on the first transverse steel bar is also determined by the position of the third connecting frame, and the positioning block is connected by the fourth connecting steel bar, ensuring that the subsequent steel bars of the arch seat are welded and firmly positioned. The second transverse steel bars between the two first connecting blocks and the third transverse steel bars between the two second connecting blocks are welded according to the designed position because the position of the connecting block on each transverse steel bar can be welded, so that the transverse steel bars can be superimposed and welded one by one, ensuring that the arch seat steel bars are firmly tied and positioned. The front and rear connecting blocks are welded by connecting steel bars, and the steel bars below can be spot welded and fixed to avoid large deformation of the steel bars below when constructing the upper steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural front view of an embodiment of the application;

[0015] Figure 2 It is a structural schematic diagram of a steel bar fixing frame of an embodiment of the application;

[0016] Figure 3 It is a schematic structural diagram of a chassis according to an embodiment of the application.

[0017] Explanation of the accompanying drawings: 1. Bridge pier; 2. Steel bar fixing frame; 3. Fourth vertical steel bar; 4. First vertical steel bar; 5. Second vertical steel bar; 6. Third vertical steel bar; 7. First connecting block; 8. Fixing block; 9. Third connecting block; 10. Third transverse steel bar; 11. Second transverse steel bar; 12. Positioning block; 13. First transverse steel bar; 14. First connecting steel bar; 15. Second connecting steel bar; 16. Third connecting steel bar; 17. Base frame; 18. Column; 19. Third connecting frame; 20. Second connecting frame; 21. Insert rod; 22. Rectangular plate; 23. First connecting frame; 24. Second connecting block; 25. Fourth connecting steel bar. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-3 This application is described in further detail.

[0019] The present application embodiment discloses a novel assembled steel structure arch foot steel bar fixing frame, referring to Figure 1 and Figure 3 , including a pier 1, a base frame 17 is provided on the slope of the pier 1, the base frame 17 includes columns 18, four columns 18 are provided and are distributed in a rectangular shape, a second connecting frame 20 is welded between the front and rear columns 18, a first connecting frame 23 is welded between the left and right columns 18, a third connecting frame 19 is provided between the two first connecting frames 23, a plurality of second connecting frames 20 are provided and are horizontally equidistantly distributed, a rectangular plate 22 is welded to the bottom surface of each column 18, and four corners of the rectangular plate 22 are penetrated with an insertion rod 21, the insertion rod 21 is inserted into the platform of the slope, and the columns 18, the first connecting frame 23, the second connecting frame 20 and the third connecting frame 19 are welded together to form the base frame 17, which provides a stable support for the subsequent construction of the steel bar fixing frame 2.

[0020] Reference Figure 1 and Figure 2A steel bar fixing frame 2 is provided on the top surface of the base frame 17. The pier 1 is connected to the arch ring through the base frame 17 and the steel bar fixing frame 2, and bears the load from the arch superstructure. The steel bar fixing frame 2 includes a fixing block 8. The fixing block 8 is provided in two rows on the left and right sides. Each row of fixing blocks 8 is provided with a plurality of fixing blocks. A first horizontal steel bar 13 is welded between the left and right fixing blocks 8. A first vertical steel bar 4 is welded on the top surface of each fixing block 8. A first connecting steel bar 14 is welded between the front and rear first connecting blocks 7. A plurality of positioning blocks are welded on the outer wall of the first horizontal steel bar 13 located between the two first connecting blocks 7. 12, each positioning block 12 is welded to the third connecting frame 19 on the bottom surface, and the front and rear positioning blocks 12 are welded to each other through the fourth connecting steel bar 25, and the two rows of fixed blocks 8 are welded to the two second connecting frames 20 respectively. During the welding process of each fixed block 8 and the second connecting frame 20, the welding and positioning of the first horizontal steel bar 13 are also completed. At the same time, the position of the positioning block 12 on the first horizontal steel bar 13 is also determined by the position of the third connecting frame 19, and the positioning block 12 is connected by the fourth connecting steel bar 25, ensuring that the subsequent steel bar welding and positioning of the arch seat are firm.

[0021] Reference Figure 2 , both ends of the first horizontal steel bar 13 are welded with a first connecting block 7, a second horizontal steel bar 11 is welded between the two first connecting blocks 7, the top surface of each first connecting block 7 is welded with a second vertical steel bar 5, both ends of the second horizontal steel bar 11 are welded with a second connecting block 24, the top surface of each second connecting block 24 is welded with a third vertical steel bar 6, a second connecting steel bar 15 is welded between the front and rear second connecting blocks 24, a third horizontal steel bar 10 is welded between the two second connecting blocks 24, both ends of the third horizontal steel bar 10 are welded with a third connecting block 9, and the top surface of each third connecting block 9 is welded A fourth vertical steel bar 3 is connected, and a third connecting steel bar 16 is welded between the front and rear third connecting blocks 9, a second transverse steel bar 11 between the two first connecting blocks 7, and a third transverse steel bar 10 between the two second connecting blocks 24. Because the position of the connecting blocks on each transverse steel bar is welded according to the designed position, the transverse steel bars can be superimposed and welded one by one to ensure that the arch seat steel bars are firmly tied and positioned, and the front and rear connecting blocks are welded through connecting steel bars, so the steel bars below can be spot welded and fixed to avoid large deformation of the lower steel bars when constructing the upper steel bars.

[0022] The implementation principle of a novel assembled steel structure arch foot steel bar fixing frame of the embodiment of the present application is as follows: when in use, the insertion rod 21 is first inserted into the slope platform, and the column 18, the first connecting frame 23, the second connecting frame 20 and the third connecting frame 19 are welded together to form a base frame 17 to provide a stable support for the subsequent construction of the steel bar fixing frame 2, and then the two rows of fixing blocks 8 are respectively welded to the two second connecting frames 20. During the welding process of each fixing block 8 and the second connecting frame 20, the welding and positioning of the first horizontal steel bar 13 are also completed. At the same time, the position of the positioning block 12 on the first horizontal steel bar 13 is also adjusted by the position of the third connecting frame 19. The position is determined, and the positioning block 12 is connected by the fourth connecting steel bar 25, ensuring that the subsequent steel bars of the arch seat are welded and firmly positioned. Finally, the second transverse steel bar 11 between the two first connecting blocks 7 and the third transverse steel bar 10 between the two second connecting blocks 24 are welded according to the designed position of the connecting blocks on each transverse steel bar, so that the transverse steel bars can be superimposed and welded one by one to ensure that the arch seat steel bars are firmly tied and positioned. In addition, the front and rear connecting blocks are welded by connecting steel bars, and the steel bars below can be spot welded and fixed to avoid large deformation of the lower steel bars when constructing the upper steel bars.

[0023] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0024] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0025] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0026] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A novel assembled steel structure arch foot steel bar fixing frame, comprising a bridge pier (1), characterized in that: A base frame (17) is provided on the slope of the pier (1), and a steel bar fixing frame (2) is provided on the top surface of the base frame (17). The steel bar fixing frame (2) comprises a fixing block (8). The fixing block (8) is provided in two left and right rows, and each row of fixing blocks (8) is provided with a plurality of fixing blocks. A first transverse steel bar (13) is welded between the left and right fixing blocks (8), a first connecting block (7) is welded at both ends of the first transverse steel bar (13), a second transverse steel bar (11) is welded between the two first connecting blocks (7), a second connecting block (24) is welded at both ends of the second transverse steel bar (11), a third transverse steel bar (10) is welded between the two second connecting blocks (24), and a third connecting block (9) is welded at both ends of the third transverse steel bar (10).

2. According to claim 1, a new type of assembled steel structure arch foot steel bar fixing frame is characterized by: The top surface of each of the fixing blocks (8) is welded with a first vertical steel bar (4), the top surface of each of the first connecting blocks (7) is welded with a second vertical steel bar (5), the top surface of each of the second connecting blocks (24) is welded with a third vertical steel bar (6), and the top surface of each of the third connecting blocks (9) is welded with a fourth vertical steel bar (3).

3. The novel assembled steel structure arch foot steel bar fixing frame according to claim 1 is characterized in that: A first connecting steel bar (14) is welded between the front and rear two first connecting blocks (7), a second connecting steel bar (15) is welded between the front and rear two second connecting blocks (24), and a third connecting steel bar (16) is welded between the front and rear two third connecting blocks (9).

4. The novel assembled steel structure arch foot steel bar fixing frame according to claim 1 is characterized by: The base frame (17) comprises a column (18), wherein four columns (18) are provided and distributed in a rectangular shape, a second connection frame (20) is welded between the front and rear columns (18), a first connection frame (23) is welded between the left and right columns (18), a third connection frame (19) is provided between the two first connection frames (23), and a plurality of second connection frames (20) are provided and are distributed equidistantly in a horizontal shape.

5. The novel assembled steel structure arch foot steel bar fixing frame according to claim 4 is characterized by: A rectangular plate (22) is welded to the bottom surface of each upright column (18), and insertion rods (21) are inserted through the four corners of the rectangular plate (22).

6. The novel assembled steel structure arch foot steel bar fixing frame according to claim 4 is characterized by: The outer wall of the first transverse steel bar (13) located between the two first connecting blocks (7) is welded with a plurality of positioning blocks (12), each of the positioning blocks (12) is welded to the third connecting frame (19) on the bottom surface, and the front and rear positioning blocks (12) are welded to each other via a fourth connecting steel bar (25).

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