Rockfall protection shed frame

Abstract

The utility model discloses a rockfall protection shed frame which 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 utility model has the advantages of better structural strength, capability of realizing multi-time grading unloading and stronger impact resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of rockfall protection structures, in particular to a rockfall protection scaffold. Background Art

[0002] With economic development, road and rail infrastructure in mountainous areas continues to expand. Falling rocks from the mountains often impact transportation infrastructure. The immense impact of these rocks can easily damage transportation infrastructure, even causing casualties and vehicle damage. Therefore, sections of roads with potential rockfall risks require the installation of rockfall protection scaffolding above the transportation infrastructure to prevent loss of life and property.

[0003] Most existing rockfall protection scaffolds utilize a gate-shaped structure, meaning their roofs are flat. Others have gable-shaped or circular roofs, utilizing flexible protective nets or corrugated steel. These existing rockfall protection scaffolds have weak impact resistance and are unable to effectively mitigate the potential safety hazards of falling rocks. Therefore, there is a need for a rockfall protection scaffold with improved impact resistance and structural strength. Summary of the Invention

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

[0005] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is:

[0006] A rockfall protection shed is provided, comprising an elliptical skirt beam and a top cover, wherein a vertebral beam is provided in the long axis direction of the top cover, the middle part of the vertebral beam is upwardly convex, and both ends of the vertebral beam are fixedly connected to the skirt beam; a plurality of rib beams are provided in the short axis direction of the top cover, the middle part of each rib beam is fixedly connected to the vertebral beam, and both ends of the rib beam are fixedly connected to the skirt beam; the skirt beam, the vertebral beam and the plurality of groups of rib beams form a plurality of arc-shaped mounting surfaces, and a shield plate is fixed to each arc-shaped mounting surface; and a plurality of columns are fixed to 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 are bonded and fixed between the lower steel sheet layer and 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 splints are provided on both sides of the socket. The fixing splints are provided with connecting holes, and the skirt beam is provided with connecting through holes that match the connecting holes. The fixing splints and the skirt beam are connected 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 the rib beam, the vertebra beam and the skirt beam are provided with bolt holes that cooperate with the bolts.

[0011] Furthermore, both the vertebral beams and the rib beams 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 provided on the vertebral beam, and the top of the rib beam is flush with the top of the vertebral beam.

[0016] The beneficial effects of the utility model are:

[0017] The utility model realizes the first force unloading through the shield plate. When the falling rocks from the mountain fall onto the shield plate on the top cover of the protective scaffolding, because 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, consuming part of the impact energy, which is the second link of "energy consumption"; the rib beams and the plugs cooperate to realize the third force unloading. The shield plate continues to transmit the downward power to the ribs Beams and bolts, because the contact surface between the shield plate and the frame is a downward curved surface, the force on the shield plate is decomposed into normal component and oblique component. The normal component acts vertically on the rib beam, and the oblique component acts on the bolt, and the bolt deforms and consumes energy, which is the third link "force component"; 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 this utility model has better structural strength and can achieve multiple stages of force unloading, thus enhancing its impact resistance. Through the five links of "force unloading", "energy consumption", "force distribution", "force bearing" and "force transmission", the utility model only partially affects the huge impact force of falling rocks, and then is further decomposed and dissipated. This avoids the problem of existing rockfall protection scaffolds that suffer from concentrated force and thus have weak impact resistance, thereby improving the impact resistance of the protection scaffold. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a partial structural diagram of the utility model;

[0021] Figure 3 Schematic diagram of the structure of the top cover;

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

[0023] Figure 5 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. Bolt; 2. Skirt beam; 3. Column; 31. Socket; 32. Fixing splint; 33. Bolt. DETAILED DESCRIPTION

[0026] The specific implementation methods of the present invention are described below to facilitate understanding of the present invention by those skilled in the art. However, it should be clear that the present invention is not limited to the scope of the specific implementation methods. For those skilled in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the appended claims, these changes are obvious, and all inventions and creations utilizing the concepts of the present invention are protected.

[0027] like Figure 1 、 2 As shown in Figure 3, the elliptical skirt beam 2 and top cover 1 are provided with a vertebral beam 13 along the long axis of the top cover 1. The middle portion of the vertebral beam 13 is convex upward, and both ends of the vertebral beam 13 are fixedly connected to the skirt beam 2. Several rib beams 12 are provided along the short axis 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 vertebral beams 13 and rib beams 12 are all arched. The skirt beam 2, vertebral beams 13, and several groups of rib beams 12 form several curved mounting surfaces, each of which is fixed with a shield plate 11. Several 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. At least four columns 3 are provided. In this embodiment, four columns 3 are provided, and each of the four columns 3 is located at the bottom of the skirt beam 2. A mounting plate may be further 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 secured to the rib beams 12, vertebral beams 13, and skirt beams 2 via a plurality of bolts 14. The rib beams 12, vertebral beams 13, and skirt beams 2 are provided with bolt holes that mate with the bolts 14. Under the action of force, the mild steel bolts 14 deform and dissipate energy, reducing the load transmitted to the rib beams 12. Rivets can also be used to secure the shield plate 11 to the rib beams 12, vertebral beams 13, and skirt beams 2. Rivets provide a secure and convenient installation.

[0029] like Figure 5 As shown, the shield 11 includes 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, with the lower steel sheet layer 111 and the bubble concrete layer 112 being bonded together, and the bubble concrete layer 112 and the upper steel sheet layer 113 being bonded together. The lower steel sheet layer 111 and the upper steel sheet layer 113 are vertically arched upward to form a steel skeleton. Under the action of impact force, the lower steel sheet layer 111 and the upper steel sheet layer 113 deform downward and dissipate some of the impact energy.

[0030] In this embodiment, the skirt beam 2 has a rectangular cross-section and is a hollow beam. The hollow rectangular cross-section improves the vertical bending resistance of the skirt beam 2. The skirt beam has a solid cross-section at the intersection with the vertebral beam 13, the rib beam 12, and the column 3. The solid rectangular cross-section of the skirt beam 2 at the intersection with the vertebral 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 beams 12 and the skirt beams 2, the vertebral beams 13 and the skirt beams 2, and the rib beams 12 and the vertebral beams 13 are all welded together. The rib beams 12, the vertebral beams 13, and the skirt beams 2 are welded to form a fixed frame similar to a tortoise shell, thereby facilitating the fixing of the shield plate 11.

[0032] In this embodiment, the cross-sections of the rib beams 12 and the vertebra beams 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 beams 13 and the rib beams 12.

[0033] In this embodiment, a T-shaped opening is provided on the vertebral beam 13 for mounting the rib beam 12. The top of the rib beam 12 is flush with the top of the vertebral beam 13. The middle portion of the rib beam 12 is connected to the vertebral beam 13 through the T-shaped opening. The rib beam 12 and the vertebral beam 13 are then connected and fixed by welding, achieving an efficient and stable connection between the rib beam 12 and the vertebral beam 13.

[0034] In this embodiment, if Figure 3As shown, the columns 3 are installed in a removable manner. The columns 3 are provided with a socket 31 for mounting the skirt beam 2. Fixing plates 32 are provided on both sides of the socket 31. The fixing plates 32 are provided with connection holes. The skirt beam 2 is provided with connecting holes that match the connection holes. The fixing plates 32 are connected to the skirt beam 2 via bolts 33. The cross-sections of several columns 3 are cross-shaped. The bottom of the socket 31 supports the skirt beam 2, and the sides of the socket 31 support and limit the inner and outer rings of the skirt beam 2. The matching fixing plates 32 and bolts 33 securely connect the columns 3 to the skirt beam 2.

[0035] The working process and principle: Rocks fall from the mountain onto shield plate 11 of the protective scaffolding roof 1. Because shield plate 11 is curved, the rock continues to roll downward into the valley, so only a portion of the impact force acts on the shield plate, representing the first stage of "force unloading." Under the impact, shield plate 11's lower steel mesh 111, air-bubbled concrete layer 112, and upper steel sheet 113 dissipate some of the impact energy, representing the second stage of "energy dissipation." Shield plate 11 transmits the downward force to rib beams 12 and bolts 14. Because the contact surface between shield plate 11 and the frame is a downwardly curved surface, the force on shield plate 11 is decomposed into a normal component and an oblique component. The normal component acts perpendicularly on rib beams 12, while the oblique component acts on the bolts, causing deformation and energy dissipation, representing the third stage of "force distribution." The normal component acts perpendicularly on rib beams 12, which then transmit the force to vertebral beams 13 and skirt beams 2, representing the fourth stage of "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 merely preferred embodiments of the present invention. It should be noted that those skilled in the art may make various modifications and improvements without departing from the scope of the present invention. These modifications and improvements should also be considered within the scope of protection of the present invention and will not affect the effectiveness of the implementation of the present invention or the practical application of the patent. The technologies, shapes, and structural components omitted from the present invention are all well-known technologies.

Claims

1. A rockfall protection scaffolding, characterized in that: It comprises an elliptical skirt beam (2) and a top cover (1), wherein a vertebral beam (13) is provided in the long axis direction of the top cover (1), the middle portion of the vertebral beam (13) is convex upward, and both ends of the vertebral 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 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 bar layer (111), a bubble concrete layer (112), and an upper steel bar layer (113); the lower steel bar layer (111), the bubble concrete layer (112), and the upper steel bar layer (113) are fixed in sequence from bottom to top; the lower steel bar layer (111) and the bubble concrete layer (112), and the bubble concrete layer (112) and the upper steel bar 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). The fixing clamps (32) are provided with connecting holes, and the skirt beam (2) is provided with connecting through holes that match the connecting holes. The fixing clamps (32) and the skirt beam (2) are connected by 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 vertebral 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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