Rockfall protection shed frame

Abstract

The rockfall protection shed frame comprises an oval skirt edge beam, a vertebra beam is arranged in the long axis direction of a top cover, the middle of the vertebra beam protrudes upwards, and the two ends of the vertebra beam are fixedly connected with the skirt edge beam; a plurality of rib beams are arranged in the short axis direction of the top cover, the middle of each rib beam is fixedly connected with the vertebra beam, and the two ends of each rib beam are fixedly connected with the skirt beams; the skirt edge beams, the vertebra beams and the multiple sets of rib beams form a plurality of arc-shaped installation faces, and each arc-shaped installation face is fixedly provided with a shield plate. A plurality of stand columns are fixed to the bottoms of the skirt beams. First force unloading is achieved through the shield plate, second force unloading is achieved through deformation of the reinforcing mesh and the bubble concrete layer of the shield plate, third force unloading is achieved through cooperation of the rib beams and the insertion bolts, fourth force unloading is achieved through cooperation of the rib beams, the vertebra beams and the skirt edges, and fifth force unloading is achieved through the stand columns. The structure strength is better, multi-time graded unloading can be achieved, and the impact resistance is higher.

Description

Technical Field

[0001] The invention relates to the technical field of rockfall protection structures, and in particular to a rockfall protection shed. Background Art

[0002] With economic development, the number of road and rail transportation infrastructure in mountainous areas has continued to increase. Rockfalls from the mountains often impact transportation infrastructure. The impact of rockfalls from the mountains is huge, which can easily damage transportation infrastructure and even cause casualties and vehicle damage. Therefore, for sections of roads with rockfall risks, it is necessary to set up rockfall protection scaffolding above the transportation infrastructure to prevent loss of life and property caused by rockfalls.

[0003] Most of the rockfall protection sheds in the prior art adopt a gate-shaped structure, that is, the roof is flat; there are also rockfall protection sheds with a herringbone or circular roof, using flexible protection nets or corrugated steel sheds, etc. The rockfall protection sheds in the prior art have weak impact resistance and cannot effectively reduce the safety hazards of rockfall. Therefore, it is necessary to propose a rockfall protection shed with better impact resistance and better structural strength. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a rockfall protection scaffold.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0006] Provided is a rockfall protection shed, comprising an elliptical skirt beam, a vertebra beam being arranged in the long axis direction of a top cover, the middle part of the vertebra beam being convex upward, and both ends of the vertebra beam being fixedly connected to the skirt beam; a plurality of rib beams being arranged in the short axis direction of the top cover, the middle part of each rib beam being fixedly connected to the vertebra beam, and both ends of the rib beam being fixedly connected to the skirt beam; the skirt beam, the vertebra beam and a plurality of groups of rib beams forming a plurality of arc-shaped mounting surfaces, each of which being fixedly provided with a shield plate; and a plurality of columns being fixedly provided at the bottom of the skirt beam.

[0007] Furthermore, the shield plate includes a lower steel sheet layer, a bubble concrete layer and an upper steel sheet layer, which are fixed in sequence from bottom to top, and the lower steel sheet layer is bonded and fixed to the bubble concrete layer and between the bubble concrete layer and the upper steel sheet layer.

[0008] Furthermore, a socket for installing the skirt beam is provided on the column, and fixing clamps are provided on both sides of the socket. The fixing clamps are provided with connecting holes, and the skirt beam is provided with connecting through holes matching the connecting holes. The fixing clamps are connected to the skirt beam by bolts.

[0009] Furthermore, the cross section of the column is cross-shaped.

[0010] Furthermore, the shield plate is fixed to the rib beam, the vertebra beam and the skirt beam through a plurality of bolts, and bolt holes cooperating with the bolts are arranged on the rib beam, the vertebra beam and the skirt beam.

[0011] Furthermore, both the vertebrae and ribs are arched.

[0012] Furthermore, the cross section of the skirt beam is rectangular, and the skirt beam is a hollow beam.

[0013] Furthermore, the rib beams and the skirt beams, the vertebra beams and the skirt beams, and the rib beams and the vertebra beams are all fixed by welding.

[0014] Furthermore, the cross sections of the rib beam and the vertebra beam are both T-shaped.

[0015] Furthermore, a T-shaped opening for mounting the rib beam is arranged on the vertebra beam, and the top of the rib beam is flush with the top of the vertebra beam.

[0016] The beneficial effects of the present invention are:

[0017] The present invention realizes the first force unloading through the shield plate. The falling rocks from the mountain fall onto the shield plate on the top cover of the protective scaffolding. Since the shield plate is an arc surface, the falling rocks continue to roll down to the valley. Therefore, only a part of the impact force of the falling rocks acts on the shield plate, which is the first link of "force unloading". The steel mesh and the bubble concrete layer of the shield plate are deformed to realize the second force unloading. Under the action of the impact force, the steel mesh and the bubble concrete layer of the shield plate are deformed, which consumes part of the impact energy, which is the second link of "energy consumption". The rib beam and the plug cooperate to realize the third force unloading. The shield plate continues to transmit the downward power to the rib beam. and the plug. Because the contact surface between the shield and the frame is a downward curved surface, the force on the shield is decomposed into a normal component and an oblique component. The normal component acts vertically on the rib beam, and the oblique component acts on the plug. The plug deforms and consumes energy, which is the third link "force distribution"; the rib beam, vertebral beam and skirt cooperate to achieve the fourth force unloading, and the normal component acts vertically on the rib beam, and the rib beam transmits the force to the vertebral beam and skirt beam, which is the fourth link "load bearing"; the column realizes the fifth force unloading, the skirt beam transmits the force to the column, and the column transmits the force to the foundation and the ground, which is the fifth link "force transmission".

[0018] The tortoise shell-like structure of the present invention has better structural strength, can realize multiple graded force unloading, and has stronger impact resistance. Through the five links of "force unloading", "energy consumption", "force distribution", "force bearing" and "force transmission", the huge impact force of falling rocks only partially acts on the protective scaffolding, and then is decomposed and dissipated again, avoiding the problem of concentrated force on the existing rockfall protective scaffolding resulting in weak impact resistance, and improving the impact resistance of the protective scaffolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a partial structural schematic diagram of the present invention;

[0021] Figure 3 is a schematic diagram of the structure of the top cover;

[0022] Figure 4 It is a structural diagram of the column;

[0023] Figure 5 is a schematic diagram of the structure of the shield;

[0024] The main components in the figure are described as follows:

[0025] 1. Top cover; 11. Shield plate; 111. Lower steel sheet layer; 112. Bubble concrete layer; 113. Upper steel sheet layer; 12. Rib beam; 13. Vertebra beam; 14. Plug; 2. Skirt beam; 3. Column; 31. Socket; 32. Fixing splint; 33. Bolt. DETAILED DESCRIPTION

[0026] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0027] like Figure 1 , 2 As shown in FIG. 3 , the elliptical skirt beam 2 and the top cover 1 are provided with a vertebra beam 13 in the long axis direction. The middle part of the vertebra beam 13 is convex upward, and both ends of the vertebra beam 13 are fixedly connected to the skirt beam 2. A plurality of rib beams 12 are provided in the short axis direction of the top cover 1. The middle part of each rib beam 12 is fixedly connected to the vertebra beam 13, and both ends of the rib beam 12 are fixedly connected to the skirt beam 2. The vertebra beam 13 and the rib beam 12 are both arched. The skirt beam 2, the vertebra beam 13 and the plurality of groups of rib beams 12 form a plurality of arc-shaped mounting surfaces, and a shield plate 11 is fixed to each arc-shaped mounting surface. A plurality of columns 3 are fixed to the bottom of the skirt beam 2. The columns 3 can be directly welded to the bottom of the skirt beam 2. The columns 3 are provided at least at four locations. In this embodiment, the columns 3 are provided at four locations, and the four columns 3 are provided at the bottom of the skirt beam 2. A mounting plate may also be provided at the bottom of the column 3, and the bottom of the column 3 may be fixedly mounted by pre-embedding or fixing the mounting plate.

[0028] like Figure 4As shown, the shield plate 11 is fixed to the rib beam 12, the vertebra beam 13 and the skirt beam 2 by a plurality of bolts 14, and bolt holes matching with the bolts 14 are provided on the rib beam 12, the vertebra beam 13 and the skirt beam 2. Under the action of force, the bolts 14 made of mild steel deform and consume energy, reducing the load transmitted to the rib beam 12. Rivets can also be used to fix the shield plate 11 to the rib beam 12, the vertebra beam 13 and the skirt beam 2, which are firmly fixed and easy to install and fix.

[0029] like Figure 5 As shown, the shield plate 11 includes a lower steel sheet layer 111, a bubble concrete layer 112 and an upper steel sheet layer 113, which are fixed in sequence from bottom to top, and are bonded and fixed between the lower steel sheet layer 111 and the bubble concrete layer 112, and between the bubble concrete layer 112 and the upper steel sheet layer 113. The lower steel sheet layer 111 and the upper steel sheet layer 113 are vertically arched upward to form a steel skeleton, and under the action of the impact force, the lower steel sheet layer 111 and the upper steel sheet layer 113 are deformed downward and consume part of the impact energy.

[0030] In this embodiment, the cross section of the skirt beam 2 is rectangular, and the skirt beam 2 is a hollow beam, and the hollow rectangular cross section improves the vertical bending resistance of the skirt beam 2. The skirt beam at the intersection with the vertebra beam 13, the rib beam 12, and the column 3 is a solid cross section, and the solid rectangular cross section of the skirt beam 2 at the intersection with the vertebra beam 13, the rib beam 12, and the column 3 improves the vertical shear resistance of the skirt beam 2.

[0031] In this embodiment, the rib beam 12 and the skirt beam 2, the vertebra beam 13 and the skirt beam 2, and the rib beam 12 and the vertebra beam 13 are all welded and fixed. The rib beam 12, the vertebra beam 13 and the skirt beam 2 are welded to form a fixed frame similar to a tortoise shell, so as to facilitate the fixing of the shield plate 11.

[0032] In this embodiment, the cross-sections of the rib beam 12 and the vertebra beam 13 are both T-shaped. The top plate of the T-shaped cross-section increases the area of ​​the compression zone and improves the bearing capacity of the vertebra beam 13 and the rib beam 12.

[0033] In this embodiment, a T-shaped opening for mounting the rib beam 12 is provided on the vertebral beam 13, and the top of the rib beam 12 is flush with the top of the vertebral beam 13. The middle of the rib beam 12 is connected to the vertebral beam 13 through the T-shaped opening, and then the rib beam 12 and the vertebral beam 13 are connected and fixed by welding, so that the rib beam 12 and the vertebral beam 13 are efficiently and firmly connected.

[0034] In this embodiment, if Figure 3As shown, the column 3 is installed in a detachable manner. The column 3 is provided with a socket 31 for installing the skirt beam 2, and fixed clamps 32 are provided on both sides of the socket 31. The fixed clamps 32 are provided with connection holes, and the skirt beam 2 is provided with connection through holes that match the connection holes. The fixed clamps 32 are connected to the skirt beam 2 through bolts 33. The cross-sections of several columns 3 are cross-shaped. The bottom of the socket 31 can support the skirt beam 2, and the two sides of the socket 31 can support and limit the inner ring and outer ring of the skirt beam 2. The matched fixed clamps 32 and bolts 33 can fix the column 3 and the skirt beam 2.

[0035] Working process and principle: Rocks fall from the mountain onto the shield plate 11 of the top cover 1 of the protective scaffolding. Because the shield plate 11 is an arc surface, the rocks continue to roll down to the valley. Therefore, only a part of the impact force of the rocks acts on the shield plate, which is the first link "unloading force". Under the impact force, the lower steel mesh 111, the bubble concrete layer 112 and the upper steel sheet layer 113 of the shield plate 11 consume part of the impact energy, which is the second link "energy consumption". The shield plate 11 continues to transmit the downward power to the rib beam 12 and the plug 14. Because the contact surface between the shield plate 11 and the frame is a downward curved surface, the force on the shield plate 11 is decomposed into a normal component and an oblique component. The normal component acts vertically on the rib beam 12, and the oblique component acts on the plug. The plug deforms and consumes energy, which is the third link "force component". The normal component acts vertically on the rib beam 12, and the rib beam 12 transmits the force to the vertebra beam 13 and the skirt beam 2, which is the fourth link "load bearing". Finally, the skirt beam 2 transmits the force to the column 3, and the column 3 transmits the force to the foundation and the ground, which is the fifth link "force transmission".

[0036] The above are only preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, which should also be regarded as the protection scope of the present invention, and will not affect the effect of the implementation of the present invention and the practicality of the patent. The technology, shape, and structural parts omitted in the present invention are all well-known technologies.

Claims

1. A rockfall protection scaffold, characterized in that: It comprises an elliptical skirt beam (2), a vertebra beam (13) is arranged in the long axis direction of the top cover (1), the middle part of the vertebra beam (13) is convex upward, and both ends of the vertebra beam (13) are fixedly connected to the skirt beam (2); A plurality of rib beams (12) are arranged in the short axis direction of the top cover (1), the middle portion of each rib beam (12) is fixedly connected to the vertebral beam (13), and both ends of the rib beam (12) are fixedly connected to the skirt beam (2); the skirt beam (2), the vertebral beam (13) and the plurality of groups of rib beams (12) form a plurality of arc-shaped mounting surfaces, and a shield plate (11) is fixed to each of the arc-shaped mounting surfaces; and a plurality of columns (3) are fixed to the bottom of the skirt beam (2).

2. The rockfall protection scaffold according to claim 1, characterized in that: The shield plate (11) comprises a lower steel sheet layer (111), a bubble concrete layer (112) and an upper steel sheet layer (113); the lower steel sheet layer (111), the bubble concrete layer (112) and the upper steel sheet layer (113) are fixed in sequence from bottom to top; the lower steel sheet layer (111) and the bubble concrete layer (112), and the bubble concrete layer (112) and the upper steel sheet layer (113) are bonded and fixed.

3. The rockfall protection scaffold according to claim 1, characterized in that: The column (3) is provided with a socket (31) for mounting the skirt beam (2), and fixing clamps (32) are provided on both sides of the socket (31), and the fixing clamps (32) are provided with connecting holes, and the skirt beam (2) is provided with connecting through holes matching the connecting holes, and the fixing clamps (32) are connected to the skirt beam (2) via bolts (33).

4. The rockfall protection scaffold according to claim 1, characterized in that: The cross section of the column (3) is cross-shaped.

5. The rockfall protection scaffold according to claim 1, characterized in that: The shield plate (11) is fixed to the rib beam (12), the vertebra beam (13) and the skirt beam (2) through a plurality of bolts (14); the rib beam (12), the vertebra beam (13) and the skirt beam (2) are provided with bolt holes that cooperate with the bolts (14).

6. The rockfall protection scaffold according to claim 1, characterized in that: The vertebral beam (13) and the rib beam (12) are both arched.

7. The rockfall protection scaffold according to claim 1, characterized in that: The cross section of the skirt beam (2) is rectangular, and the skirt beam (2) is a hollow beam.

8. The rockfall protection scaffold according to claim 1, characterized in that: The rib beam (12) and the skirt beam (2), the vertebra beam (13) and the skirt beam (2), and the rib beam (12) and the vertebra beam (13) are all fixed by welding.

9. The rockfall protection scaffold according to claim 1, characterized in that: The cross sections of the rib beam (12) and the vertebra beam (13) are both T-shaped.

10. The rockfall protection scaffold according to claim 9, characterized in that: The vertebral beam (13) is provided with a T-shaped opening for mounting the rib beam (12), and the top of the rib beam (12) is flush with the top of the vertebral beam (13).

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