Large cantilever prestress bent cap assembly type support

Abstract

The utility model relates to the technical field of support equipment, in particular to a large cantilever prestress bent cap assembly type support which comprises four supporting assemblies, the supporting assemblies are located at the four corners of two pier columns, each supporting assembly comprises a sand box, and two parallel cross beams are connected between the two supporting assemblies through bolts. An inclined beam is welded between the two cross beams, the outer sides of the supporting assemblies are connected with inclined strut assemblies through bolts, and I-shaped steel is installed on the two supporting assemblies. Only four supporting assemblies are adopted, the occupied area of the ground is reduced, and urban traffic pressure is effectively relieved. The anti-falling platform installed below the inclined strut assembly ensures that vehicles below pass without worries. In addition, the multiple steel pipe columns are flexibly combined, supports of different heights can be easily constructed, disassembly is convenient, the construction period is shortened, and various construction requirements are met. And a special sand box device is introduced, so that the balance of the bracket can be adjusted in real time in the concrete pouring process, and the structural stability is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of support equipment technical field, especially a large cantilever prestressed bent cap assembly type support. BACKGROUND

[0002] Large cantilever prestressed bent cap in municipal bridge, as a remarkable solution to urban road traffic pressure, significantly broadens the traffic space below bridge, and is therefore widely used in the construction of urban viaduct. This structure not only optimizes the urban space layout, but also greatly improves traffic efficiency.

[0003] In the construction process of large cantilever prestressed bent cap, support method is widely used due to its stability and reliability. However, this method is also accompanied by a series of challenges. The construction process is numerous and complex, and the erection and removal of support and bottom mold need to consume a lot of time, thus prolonging the entire project cycle. Since the construction site is usually located in a busy urban traffic area, it is common to have traffic while construction. This undoubtedly increases the safety risk of construction, and also increases the traffic pressure. In addition, during the concrete pouring process, if the concrete is not evenly distributed, it may cause the bent cap to tilt, thereby affecting the overall stability and service life of the bridge.

[0004] Therefore, we propose a large cantilever prestressed bent cap assembly type support. SUMMARY

[0005] The main purpose of the utility model is to provide a large cantilever prestressed bent cap assembly type support to solve the problems raised in the related art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a large cantilever prestressed bent cap assembly type support is provided, which comprises four support assemblies, the support assemblies are located at the four corners of two pier columns, the support assembly comprises a sand box, two parallel cross beams are connected between the two support assemblies by bolts, an inclined beam is welded between the two cross beams, an inclined strut assembly is connected to the outside of the support assembly by bolts, and an I-beam is installed on the two support assemblies.

[0007] Further, the support assembly comprises a concrete foundation, a steel pipe column is welded to the concrete foundation, flanges are fixedly installed on the steel pipe column, two adjacent flanges are connected by bolts, and a transition pipe is welded to the steel pipe column.

[0008] Further, a plurality of corner blocks are provided on the outside of the concrete foundation, and a first top plate is fixedly connected to the transition pipe.

[0009] Further, the sand box comprises a bottom plate, and anti-overturning anchor rods are provided at the four corners of the bottom plate.

[0010] Further, the anti-overturning anchor rod is hinged with a second top plate at the upper end, the anti-overturning anchor rod penetrates through the bottom plate and the first top plate, and two bolts are sleeved on the anti-overturning anchor rod.

[0011] Further, the bottom plate is fixedly connected with a sand bucket, hydraulic cylinders are fixedly installed on the lateral sides of the sand bucket, and the piston rods of the hydraulic cylinders are fixedly connected with the second top plate.

[0012] Further, the second top plate is fixedly connected with a pressing block matched with the sand bucket.

[0013] Further, the second top plate is provided with two rows of symmetrical angle braces, and a level is installed on the second top plate.

[0014] Further, the inclined brace assembly comprises a support cantilever, and a plurality of connecting columns are welded on the support cantilever.

[0015] Further, the top ends of the connecting columns are consistent with the top ends of the support cantilevers, and a falling prevention platform is installed between the two support cantilevers.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the utility model only adopts four support assemblies, reduces the ground occupation area, and effectively relieves the urban traffic pressure. The falling prevention platform installed below the inclined brace assembly improves the safety performance and ensures the safe passing of vehicles below. In addition, the flexible combination of the plurality of steel pipe columns not only can easily construct support of different heights, but also is convenient to disassemble, reduces the construction period, and adapts to various construction demands. Moreover, the special sand box device is introduced, so that the support balance can be adjusted in real time during the concrete pouring process, the structure stability is ensured, and the construction is accurate and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a structural schematic view of the support assembly in the utility model;

[0019] Figure 3 It is a structural schematic view of the sand box in the utility model;

[0020] Figure 4 It is a structural schematic view of the inclined brace assembly in the utility model.

[0021] Illustration: 1, support assembly; 11, concrete foundation; 111, corner block; 12, steel pipe column; 13, flange plate; 14, transition pipe; 141, first top plate; 15, sand box; 151, bottom plate; 152, anti-overturning anchor rod; 153, second top plate; 154, pressing block; 155, sand bucket; 156, hydraulic cylinder; 157, angle brace; 158, level; 2, cross beam; 3, inclined beam; 4, inclined brace assembly; 41, bracket cantilever; 42, connecting column; 43, anti-falling platform; 5, I-beam. DETAILED DESCRIPTION

[0022] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model will be described in detail as follows in combination with the drawings and preferred embodiments.

[0023] Please refer to Figures 1-4 The utility model provides a technical scheme:

[0024] A large cantilever prestressed bent cap assembly support, comprising four support assemblies 1, the support assembly 1 is located at the four corners of two pier columns, the support assembly 1 comprises a sand box 15, two parallel cross beams 2 are connected between the two support assemblies 1 by bolts, the inclined beam 3 is welded between the two cross beams 2, the inclined brace assembly 4 is connected to the outer side of the support assembly 1 by bolts, and the I-beam 5 is installed on the two support assemblies 1.

[0025] The support assembly 1 comprises a concrete foundation 11, the steel pipe column 12 is welded on the concrete foundation 11, the flange plate 13 is fixedly installed on the steel pipe column 12, the two adjacent flange plates 13 are connected by bolts, and the transition pipe 14 is welded on the steel pipe column 12. A plurality of corner blocks 111 are arranged on the outer side of the concrete foundation 11, and the first top plate 141 is fixedly connected to the transition pipe 14. The concrete foundation 11 and the steel pipe column 12 can be recycled, saving installation materials, a plurality of steel pipe columns 12 can be stacked and installed through the connecting flange plates 13, the installation and disassembly time is saved, and thus the installation is easy and the construction time period is short.

[0026] It should be noted that the corner blocks 111 arranged on the outer side of the concrete foundation 11 can effectively enhance the adhesion of the concrete foundation 11 to the soil in the pit, thereby improving the overall stability.

[0027] It should be noted that the steel pipe column 12 is provided with standard sections of 5m, 2m, 1m, 0.5m, 0.3m, 0.2m and the like, so as to form supports of different heights.

[0028] The sand box 15 comprises a bottom plate 151, the bottom plate 151 is provided with anti-overturning anchor rods 152 at four corners, the upper end of the anti-overturning anchor rod 152 is hinged with a second top plate 153, the anti-overturning anchor rod 152 penetrates the bottom plate 151 and the first top plate 141, and the anti-overturning anchor rod 152 is sleeved with two bolts. The bottom plate 151 is fixedly connected with a sand barrel 155, and the sand barrel 155 is fixedly installed with hydraulic cylinders 156 on the transverse two sides, and the piston rod of the hydraulic cylinder 156 is fixedly connected with the second top plate 153. The second top plate 153 is fixedly connected with a pressing block 154 matched with the sand barrel 155, and the second top plate 153 is provided with two rows of symmetrical angle braces 157, and the second top plate 153 is installed with a level 158. The anti-overturning anchor rod 152 is used to firmly connect the bottom plate 151 and the first top plate 141 together, and then the sand box 15 is stably fixed on the transition pipe 14. When the support encounters impact or strong wind and other external forces, the anti-overturning anchor rod 152 can effectively prevent the sand box 15 from overturning, and ensure that the structure remains vertical and does not tilt. In addition, the angle brace 157 provides additional support for the I-shaped steel 5, further enhancing the stability of the I-shaped steel 5.

[0029] It should be noted that the outer wall of the sand barrel 155 is designed with a closable sand hole. When the sand barrel 155 is filled with sand, the pressing block 154 below the second top plate 153 is used to apply pressure to the sand in the sand barrel, so that the sand flows out of the sand hole, thereby achieving the purpose of fine adjustment of the height.

[0030] It should be noted that the level 158 can be used to monitor the overall balance of the sand box 15. Once it is found that the sand box 15 deviates from the horizontal position, the hydraulic cylinder 156 is started immediately. The piston rod of the hydraulic cylinder 156 will push one side of the second top plate 153 to rise until the sand box 15 is adjusted to the horizontal state, ensuring that the I-shaped steel 5 remains stable as a whole.

[0031] The diagonal bracing assembly 4 comprises a bracket cantilever 41, a plurality of connecting columns 42 are welded on the bracket cantilever 41, the top end of the connecting column 42 is consistent with the top end of the bracket cantilever 41, and a fall prevention platform 43 is installed between the two bracket cantilevers 41. The connecting column 42 cooperates with the bracket cantilever 41 to provide stable support for the cantilever end of the I-shaped steel 5. At the same time, the setting of the fall prevention platform is to prevent falling objects and ensure that the driving safety is not affected.

[0032] It should be noted that in order to reduce the ground occupation area, the diagonal bracing assembly 4 is designed to extend upwards, which occupies the space above the driving lane, so that the driving lane below can normally pass through without occupying the ground driving road surface.

[0033] The cross beam 2 and the inclined beam 3 form a Z-shaped structure, which better fixes the support assembly 1. The angle blocks 111 arranged on the outer side of the concrete foundation 11 can effectively enhance the adhesion of the concrete foundation 11 to the soil in the pit, thereby improving the overall stability. The steel pipe column 12 is provided with standard sections of 5 m, 2 m, 1 m, 0.5 m, 0.3 m, 0.2 m, etc., so that supports of different heights can be formed. The concrete foundation 11 and the steel pipe column 12 can be recycled, saving installation materials. By connecting the flanges 13, multiple steel pipe columns 12 can be stacked and installed, saving installation and disassembly time, so that the installation is easy and the construction time period is short.

[0034] The anti-overturning anchor rod 152 is used to firmly connect the bottom plate 151 and the first top plate 141 together, thereby stably fixing the sand box 15 on the transition pipe 14. When the support is subjected to external forces such as impact or strong wind, the anti-overturning anchor rod 152 can effectively prevent the sand box 15 from overturning, and ensure that the structure remains vertical and does not tilt.

[0035] The outer wall of the sand bucket 155 is designed with closable sand holes. When the sand bucket 155 is filled with sand, the sand in the sand bucket is pressed by the pressing block 154 below the second top plate 153, so that the sand flows out of the sand holes, thereby achieving the purpose of fine height adjustment. With the help of the level 158, the overall balance of the sand box 15 can be monitored. Once it is found that the sand box 15 deviates from the horizontal position, the hydraulic cylinder 156 is started immediately. The piston rod of the hydraulic cylinder 156 pushes one side of the second top plate 153 to rise until the sand box 15 is adjusted to the horizontal state, ensuring that the I-beam 5 remains stable as a whole.

[0036] In order to reduce the ground occupation area, the inclined support assembly 4 is used, which is designed to extend upwards and occupy the space above the driving lane, thereby ensuring that the driving lane below can normally pass through without occupying the ground driving road surface. The connecting column 42 and the support cantilever 41 cooperate to provide stable support for the cantilever end of the I-beam 5. At the same time, the setting of the anti-falling platform is to prevent falling objects and ensure that the driving safety is not affected.

[0037] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, and any equivalent embodiments with equivalent changes and modifications made on the basis of the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A large cantilever prestressed bent cap assembly type support, comprising four support assemblies (1), characterized in that, The support assembly (1) is located at the four corners of two piers, the support assembly (1) comprises a sand box (15), two parallel cross beams (2) are connected between the two support assemblies (1) by bolts, and an inclined beam (3) is welded between the two cross beams (2); the outer side of the support assembly (1) is connected with an inclined support assembly (4) by bolts, and an I-beam (5) is installed on the two support assemblies (1).

2. The large cantilever prestressed bent cap assembly type support according to claim 1, characterized in that, The support assembly (1) comprises a concrete foundation (11), a steel pipe column (12) is welded on the concrete foundation (11), flanges (13) are fixedly installed on the upper and lower steel pipe columns (12), two adjacent flanges (13) are connected by bolts, and a transition pipe (14) is welded on the steel pipe column (12).

3. The large cantilever prestressed bent cap assembly type support according to claim 2, characterized in that, The outer side of the concrete foundation (11) is provided with a plurality of corner blocks (111), and the transition pipe (14) is fixedly connected with a first top plate (141).

4. The large cantilever prestressed bent cap assembly type support according to claim 3, characterized in that, The sand box (15) comprises a bottom plate (151), and the bottom plate (151) is provided with anti-overturning anchor rods (152) at the four corners.

5. The large cantilever prestressed bent cap assembly type support according to claim 4, characterized in that, The anti-overturning anchor rod (152) is hingedly connected with a second top plate (153), the anti-overturning anchor rod (152) penetrates the bottom plate (151) and the first top plate (141), and two bolts are sleeved on the anti-overturning anchor rod (152).

6. The large cantilever prestressed bent cap assembly type support according to claim 5, characterized in that, The bottom plate (151) is fixedly connected with a sand barrel (155), and the sand barrel (155) is fixedly installed with hydraulic cylinders (156) on the transverse sides, and the piston rod of the hydraulic cylinder (156) is fixedly connected with the second top plate (153).

7. The large cantilever prestressed bent cap assembly type support according to claim 6, characterized in that, The second top plate (153) is fixedly connected with a pressing block (154) matched with the sand barrel (155).

8. The large cantilever prestressed bent cap assembly type support according to claim 7, characterized in that, The second top plate (153) is provided with two rows of symmetrical gusset plates (157), and a level (158) is installed on the second top plate (153).

9. The large cantilever prestressed bent cap assembly type support according to claim 8, characterized in that, The inclined support assembly (4) comprises a support cantilever (41), and a plurality of connecting columns (42) are welded on the support cantilever (41).

10. The large cantilever prestressed bent cap assembly type support according to claim 9, characterized in that, The top end of the connecting column (42) is consistent in height with the top end of the support cantilever (41), and a falling prevention platform (43) is installed between the two support cantilevers (41).

Images