A platform structure for erecting a reinforcing cage of a circular segment of a diaphragm wall

Abstract

The application discloses a kind of underground continuous wall arc segment reinforcement cage erection platform structure, it is related to the technical field of building construction, including two groups of fixed frame and several groups of support frame, all support frame is arranged along the length direction of fixed frame, the two ends of each support frame are respectively connected with two groups of fixed frame, first support piece is arranged between two fixed frames, the two sides of first support piece are inclinedly provided with second support piece, first support piece and second support piece are arranged along the length direction of fixed frame and are connected with support frame, the side of second support piece away from first support piece is higher than the side of second support piece close to first support piece.The application is because all second support piece is inclinedly arranged, so that second support piece satisfies the arc surface of arc reinforcement, increase the contact area of second support piece and arc reinforcement, so as to improve the supporting effect of second support piece to arc reinforcement, that is, improve the precision of erecting arc segment reinforcement cage.

Description

Technical Field

[0001] This application relates to the technical field of building construction, and in particular to a platform structure for erecting a steel cage for the arc segment of an underground continuous wall. Background Technology

[0002] A diaphragm wall is an engineering structure commonly used in deep foundation pit construction as a water interception, seepage prevention, load-bearing, water retention, or even building foundation. It is constructed by using a trenching machine on the ground to excavate a narrow, deep trench along the designed perimeter of the foundation pit under mud wall protection conditions. After cleaning the trench, a steel cage is suspended inside the trench, and then underwater concrete is poured through a tremie pipe to form a unit trench segment. This process is repeated segment by segment to build a continuous reinforced concrete wall underground.

[0003] The perimeter axis of the excavation pit can be either straight or curved, depending on the design. Correspondingly, the diaphragm wall is divided into straight and curved sections, and the reinforcing cage cross-section is also divided into square and curved shapes. For curved reinforcing cages, the precision of the curved section extension is crucial during erection. This not only affects the smoothness of lowering the cage into the excavation trench but also the stability of lifting it. Since the lifting points are pre-designed based on the cross-section, significant deviations can cause the lifting points to sway due to unbalanced forces during lifting, disrupting normal construction. Therefore, compared to square reinforcing cages, the precision control of the curved section's arc must be carefully considered during erection. Utility Model Content

[0004] The purpose of this application is to provide a platform structure for erecting a circular arc section of a diaphragm wall reinforcement cage, for the purpose of erecting the circular arc section of the reinforcement cage.

[0005] The technical solution of the underground continuous wall arc segment steel cage erection platform structure provided in this application is as follows: it includes two sets of fixed frames and several sets of support frames. All the support frames are arranged at intervals along the length direction of the fixed frames. The two ends of each support frame are respectively connected to the two sets of fixed frames. A first support member is provided between the two fixed frames. A second support member is inclinedly provided on both sides of the first support member. The first support member and the second support member are both arranged along the length direction of the fixed frames and connected to the support frames. The side of the second support member away from the first support member is higher than the side of the second support member close to the first support member.

[0006] By adopting the above technical solution, the curved steel bars are bent into corresponding arcs using a bending machine. Multiple curved steel bars are arranged at intervals along the length direction of the first support member, with equal distances between adjacent curved steel bars. The length direction of the curved steel bars is perpendicular to the length direction of the first support member. The first support member, two sets of fixing frames, and all the second support members all support each curved steel bar. Because all the second support members are inclined, they conform to the curved surface of the curved steel bars, increasing the contact area between the second support members and the curved steel bars, thereby improving the supporting effect of the second support members on the curved steel bars, i.e., improving the accuracy of erecting the curved steel cage. The symmetrical arrangement of the erection platform structure ensures uniform stress, which also improves the accuracy of erecting the curved steel cage. When encountering raised ground, the raised area is located between two adjacent support frames, allowing the erection platform structure to be placed more stably on the ground, ensuring the stability of the curved steel cage during erection.

[0007] Optionally, the support frame includes a base rod, an arc-shaped rod, and several support rods. The first support member and the second support member are both connected to the arc-shaped rod. All the support rods are spaced apart along the length direction of the base rod. The support rods are located between the base rod and the arc-shaped rod. The two ends of the support rods are respectively connected to the base rod and the arc-shaped rod. The length direction of the first support member is perpendicular to the base rod. The two ends of the arc-shaped rod are respectively connected to two sets of fixed frames. The two ends of the base rod are respectively connected to two sets of fixed frames.

[0008] By adopting the above technical solution, the base rod and the arc rod are connected by several support rods, which can improve the stability of the arc rod support. The arc rod is set to meet the requirement that the second support member is set at an inclination.

[0009] Optionally, the fixing frame includes a fixing rod and a plurality of connecting rods. All the connecting rods are spaced apart along the length direction of the fixing rod. The two ends of the connecting rods are respectively connected to the fixing rod and the bottom rod. The fixing rod is inclined. The side of the fixing rod away from the second support member is higher than the side of the fixing rod close to the second support member. The length direction of the fixing rod is perpendicular to the length direction of the bottom rod.

[0010] By adopting the above technical solution, the fixing rod and the bottom rod are connected by several connecting rods, which improves the stability of the fixing rod support. The fixing rod is set at an angle, so that the fixing rod meets the arc surface of the curved steel bar, increasing the contact area between the fixing rod and the curved steel bar, thereby improving the supporting effect of the fixing rod on the curved steel bar, that is, improving the accuracy of erecting the arc segment steel cage.

[0011] Optionally, both ends of the base rod are connected to reinforcing plates, and all the connecting rods in the same set of fixing frames are connected to the reinforcing plates.

[0012] By adopting the above technical solutions, the reinforcement plate improves the connection strength of the bottom rod and the connecting rod, and the reinforcement plate can lower the center of gravity of the erected platform structure, which can improve the overturning resistance of the structure, and make it more stable, especially when subjected to lateral forces.

[0013] Optionally, a support plate is provided between the base rod and the arc-shaped rod. The two sides of the support plate are respectively connected to the base rod and the arc-shaped rod. The length direction of the support plate is perpendicular to the length direction of the base rod. The two sets of fixing frames are symmetrically arranged along the central axis of the support plate.

[0014] By adopting the above technical solution, the bottom rod and the arc-shaped rod are connected by a support plate. The support plate supports the arc-shaped rod, thereby improving the effect of the arc-shaped rod in supporting the arc-shaped steel bars. The fixing frame is symmetrically arranged along the central axis of the support plate, which makes the erection platform structure uniformly stressed and also improves the accuracy of erecting the arc-shaped steel cage.

[0015] Optionally, the first support member is provided with clearance grooves that mate with the arc-shaped rods one by one.

[0016] By adopting the above technical solution, the clearance groove serves to position the first support member, ensuring its precise installation in the appropriate location. The cooperation between the clearance groove and the arc-shaped rod increases the contact area between the first support member and the arc-shaped rod, thereby increasing the number of welding points and improving the stability of their connection.

[0017] Optionally, one side of the first support member is connected to the support plate.

[0018] By adopting the above technical solution, the first support member is connected to both the curved rod and the support plate, thereby improving the stability of the connection of the first support member and thus enhancing its ability to support the curved steel bar. Optionally, each of the support rods is provided with two reinforcing rods opposite each other, the support rod is located between the two reinforcing rods, each reinforcing rod is inclined relative to the support rod, and the end of the reinforcing rod away from the support rod is connected to the bottom rod.

[0019] By adopting the above technical solution, the reinforcing rod, support rod, and base rod form a triangular structure, which improves the stability of the support rod connected to the base rod, that is, improves the effect of the support rod in supporting the arc rod.

[0020] Optionally, the support rod is threadedly connected to the base rod.

[0021] By adopting the above technical solution, it is easy to adjust the closest distance between the end of the support rod furthest from the bottom rod and the bottom rod, thereby making the height of the support rod suitable for the curved rod. It also prevents the end of the support rod furthest from the bottom rod from being higher than the second support member, thus avoiding the support rod from hindering the erection of the arc-shaped steel cage.

[0022] Optionally, the connecting rod is threadedly connected to the base rod.

[0023] By adopting the above technical solution, it is easy to adjust the shortest distance between the end of the connecting rod away from the bottom rod and the bottom rod, so that the height of the connecting rod is adapted to the fixed rod, and it also prevents the end of the support rod away from the bottom rod from being higher than the second support member, thus avoiding the support rod from hindering the erection of the arc-shaped steel cage.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. Because all the second support members are inclined, they conform to the curved surface of the arc-shaped reinforcing bars, increasing the contact area between the second support members and the arc-shaped reinforcing bars. This improves the supporting effect of the second support members on the arc-shaped reinforcing bars, thus improving the accuracy of erecting the arc-shaped reinforcing cage. When encountering raised ground, the raised area is located between two adjacent support frames, allowing the erection platform structure to be placed more stably on the ground, ensuring the stability when erecting the arc-shaped reinforcing cage.

[0025] 2. The fixing frame is symmetrically arranged along the central axis of the support plate, which makes the platform structure bear the force evenly and can also improve the accuracy of erecting the arc section steel cage. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the arc-shaped steel cage.

[0027] Figure 2 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0028] Figure 3 yes Figure 2 An enlarged view of region A.

[0029] Figure 4 yes Figure 2 A magnified view of region B.

[0030] Figure 5 This is a schematic diagram of the overall and arc segment steel cage structure of Embodiment 1 of this application.

[0031] Figure 6 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0032] Figure 7 yes Figure 6 A magnified view of region C.

[0033] Figure 8 This is a cross-sectional view of Embodiment 3 of this application.

[0034] Figure 9 yes Figure 8 A magnified view of region D.

[0035] Explanation of reference numerals in the attached drawings: 1. Fixing frame; 11. Fixing rod; 12. Connecting rod; 2. Support frame; 21. Bottom rod; 22. Arc rod; 23. Support rod; 3. Reinforcing plate; 4. First support member; 41. Clearance groove; 5. Second support member; 6. Support plate; 7. Reinforcing rod. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 2 - Appendix Figure 9 This application will be described in further detail.

[0037] This application discloses a platform structure for erecting a steel cage for the arc segment of an underground continuous wall.

[0038] like Figure 2 As shown, it includes two sets of fixed frames 1 and several sets of support frames 2 (the number of support frames 2 is selected according to actual needs). All support frames 2 are located between the two sets of fixed frames 1 and are spaced apart along the length of the fixed frames 1. The distance between two adjacent sets of support frames 2 is equal.

[0039] Combination Figure 2 and Figure 3 As shown, the fixing frame 1 includes a fixing rod 11 and several connecting rods 12 (the number of connecting rods 12 is selected according to actual needs). The length of the fixing rod 11 is selected according to actual needs. The fixing rod 11 is channel steel, and the connecting rods 12 are steel bars. Each connecting rod 12 is vertically arranged and welded to the fixing rod 11. All connecting rods 12 are spaced apart along the length direction of the fixing rod 11, and the distance between two adjacent connecting rods 12 is equal. The number of support frames 2 is the same as the number of connecting rods 12. The support frames 2 correspond one-to-one with the connecting rods 12. The support frame 2 includes a base rod 21, an arc rod 22, and several support rods 23. The arc rod 22 is bent into the corresponding arc by a bending machine. The base rod 21 is channel steel, and the arc rod 22 and support rods 23 are all steel bars. All support rods 23 are located between the base rod 21 and the arc rod 22. The support rods 23 are vertically arranged, and the two ends of the support rods 23 are welded to the base rod 21 and the arc rod 22, respectively. All support rods 23 are spaced apart along the length of the base rod 21. The distance between two adjacent support rods 23 is equal. The lengths of the support rods 23 are different, but they perform the same function. The lengths of the support rods 23 located at both ends of the base rod 21 are greater than the lengths of the support rods 23 located in the middle of the base rod 21. The lengths of the support rods 23 gradually decrease towards the middle of the base rod 21.

[0040] Combination Figure 2 and Figure 3 As shown, the length direction of the base rod 21 is perpendicular to the length direction of the fixed rod 11. Both ends of the base rod 21 are welded to two connecting rods 12, and both ends of the arc-shaped rod 22 are welded to two connecting rods 12. The upper surface of the arc-shaped rod 22 is welded to the lower surface of the fixed rod 11, improving the connection strength between the arc-shaped rod 22 and the fixing frame 1. Reinforcing plates 3 are welded to both ends of the base rod 21. The reinforcing plates 3 are channel steel, and their length direction is the same as that of the fixed rod 11, perpendicular to the length direction of the base rod 21. The reinforcing plates 3 are located on the upper surface of the base rod 21. All connecting rods 12 within the same fixing frame 1 have reinforcing plates 3 welded to their sides closest to the fixing plates.

[0041] Combination Figure 2 , Figure 3 and Figure 4 As shown, a first support member 4 is provided between the two fixed rods 11. The first support member 4 is a channel steel, and its length direction is the same as that of the fixed rods 11. The distance between the first support member 4 and the two fixed rods 11 is equal. The first support member 4 is welded to the upper surface of the arc-shaped rod 22. Two second support members 5 are inclinedly provided on both sides of the first support member 4. The second support members 5 are channel steel, and their length direction is the same as that of the fixed rods 11. The second support members 5 are welded to the upper surface of the arc-shaped rod 22. Both the second support members 5 and the fixed rods 11 are inclined. The side of each second support member 5 away from the first support member 4 is higher than the side of the second support member 5 near the first support member 4. The side of the fixed rod 11 away from the second support member 5 is higher than the side of the fixed rod 11 near the second support member 5. A support plate 6 is provided between the base rod 21 and the arc-shaped rod 22. The length direction of the support plate 6 is perpendicular to the length direction of the base rod 21. The support plate 6 is made of channel steel. The upper and lower sides of the support plate 6 are welded to the base rod 21 and the arc-shaped rod 22, respectively. The support plate 6 is located at the center of the base rod 21. The distance between the two reinforcing plates 3 and the support plate 6 is equal. The first support member 4 corresponds to the support plate 6 vertically. Several clearance grooves 41 are opened on the side of the first support member 4 near the support plate 6. The clearance grooves 41 correspond one-to-one with the arc-shaped rod 22. The arc-shaped rod 22 cooperates with the clearance grooves 41 and is inserted into the clearance grooves 41. The side of the first support member 4 near the support plate 6 is welded to the support rod 23. The support plate 6 can not only support the arc-shaped rod 22 and the first support member 4, but also improve the stability of the connection of the first support member 4.

[0042] The implementation principle of the underground continuous wall arc segment steel cage erection platform structure in this application embodiment is as follows: like Figure 5As shown, the curved steel bars are bent to the corresponding curvature by a bending machine. Multiple curved steel bars are arranged at intervals along the length direction of the first support member 4, with equal distances between adjacent curved steel bars. The length direction of the curved steel bars is perpendicular to the length direction of the first support member 4. The first support member 4, the two fixing rods 11, and all the second support members 5 all provide support for each curved steel bar. Since the two fixing rods 11 and all the second support members 5 are inclined, the fixing rods 11 and the second support members 5 conform to the curved surface of the curved steel bar, increasing the contact area between the fixing rods 11 and the second support members 5 and the curved steel bar, thereby improving the support effect of the fixing rods 11 and the second support members 5 on the curved steel bar, that is, improving the accuracy of erecting the circular arc segment steel cage.

[0043] Example 2 The difference between this embodiment and Embodiment 1 is that, in combination with Figure 6 and Figure 7 As shown, each support rod 23 is welded with two reinforcing rods 7, which are steel bars. The support rod 23 is located between the two reinforcing rods 7, and the reinforcing rods 7 are inclined relative to the support rod 23. The end of the reinforcing rod 7 away from the support rod 23 is welded to the bottom rod 21. The reinforcing rod 7, the support rod 23, and the bottom rod 21 form a triangular structure, which improves the stability of the overall structure.

[0044] Example 3 The difference between this embodiment and Embodiment 1 is that, in combination with Figure 8 and Figure 9 As shown, each connecting rod 12 and support rod 23 is threadedly connected to the base rod 21. During the assembly of the platform structure, the height of the connecting rods 12 and support rods 23 is adjusted by rotating them to accommodate the curved rods 22 with different curvatures. After the connecting rods 12 and support rods 23 are properly positioned, they are welded to the base rod 21 to improve the stability of the connecting rods 12 and support rods 23 installed on the base rod 21.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A platform structure for erecting a steel cage for the arc segment of a diaphragm wall, characterized in that: It includes two sets of fixed frames (1) and several sets of support frames (2). All the support frames (2) are arranged at intervals along the length direction of the fixed frames (1). The two ends of each support frame (2) are connected to the two sets of fixed frames (1) respectively. A first support member (4) is provided between the two fixed frames (1). A second support member (5) is inclinedly provided on both sides of the first support member (4). The first support member (4) and the second support member (5) are both arranged along the length direction of the fixed frame (1) and connected to the support frame (2). The side of the second support member (5) away from the first support member (4) is higher than the side of the second support member (5) close to the first support member (4).

2. The platform structure for erecting the reinforcing cage of the circular arc segment of the underground continuous wall according to claim 1, characterized in that: The support frame (2) includes a base rod (21), an arc rod (22), and several support rods (23). The first support member (4) and the second support member (5) are both connected to the arc rod (22). All the support rods (23) are spaced apart along the length direction of the base rod (21). The support rods (23) are located between the base rod (21) and the arc rod (22). The two ends of the support rods (23) are respectively connected to the base rod (21) and the arc rod (22). The length direction of the first support member (4) is perpendicular to the base rod (21). The two ends of the arc rod (22) are respectively connected to two sets of fixed frames (1). The two ends of the base rod (21) are respectively connected to two sets of fixed frames (1).

3. The platform structure for erecting the reinforcing cage of the arc segment of the underground continuous wall according to claim 2, characterized in that: The fixing frame (1) includes a fixing rod (11) and a plurality of connecting rods (12). All the connecting rods (12) are spaced apart along the length direction of the fixing rod (11). The two ends of the connecting rods (12) are respectively connected to the fixing rod (11) and the bottom rod (21). The fixing rod (11) is inclined. The side of the fixing rod (11) away from the second support member (5) is higher than the side of the fixing rod (11) close to the second support member (5). The length direction of the fixing rod (11) is perpendicular to the length direction of the bottom rod (21).

4. The platform structure for erecting the reinforcing cage of the arc segment of the underground continuous wall according to claim 3, characterized in that: Both ends of the bottom rod (21) are connected to the reinforcing plate (3), and all the connecting rods (12) in the same set of fixing frames (1) are connected to the reinforcing plate (3).

5. The platform structure for erecting the reinforcing cage of the arc segment of the underground continuous wall according to claim 2, characterized in that: A support plate (6) is provided between the bottom rod (21) and the arc rod (22). The two sides of the support plate (6) are connected to the bottom rod (21) and the arc rod (22) respectively. The length direction of the support plate (6) is perpendicular to the length direction of the bottom rod (21). The two sets of fixing frames (1) are symmetrically arranged along the central axis of the support plate (6).

6. The platform structure for erecting the reinforcing cage of the arc segment of the underground continuous wall according to claim 5, characterized in that: The first support member (4) is provided with a clearance groove (41) that matches the arc-shaped rod (22) one by one.

7. The platform structure for erecting the reinforcing cage of the arc segment of the underground continuous wall according to claim 6, characterized in that: One side of the first support member (4) is connected to the support plate (6).

8. The platform structure for erecting the reinforcing cage of the arc segment of the underground continuous wall according to claim 2, characterized in that: Each of the support rods (23) is provided with two reinforcing rods (7) opposite to each other. The support rod (23) is located between the two reinforcing rods (7). Each reinforcing rod (7) is inclined relative to the support rod (23). The end of the reinforcing rod (7) away from the support rod (23) is connected to the bottom rod (21).

9. The platform structure for erecting the reinforcing cage of the arc segment of the underground continuous wall according to claim 2, characterized in that: The support rod (23) is threadedly connected to the bottom rod (21).

10. The platform structure for erecting the reinforcing cage of the arc segment of the underground continuous wall according to claim 3, characterized in that: The connecting rod (12) is threadedly connected to the bottom rod (21).

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