A three-dimensional vibration isolation-based roof assembly type landing field structure

Abstract

A prefabricated rooftop takeoff and landing yard structure based on three-dimensional vibration isolation includes vertical vibration isolation air springs, horizontal rubber vibration isolation supports, I-beams, load-bearing plates, a high-performance vibration damping material surface layer, and I-beam node plates. The vertical vibration isolation air springs and horizontal rubber vibration isolation supports achieve three-dimensional vibration isolation of the building during the takeoff and landing of vertical takeoff and landing aircraft. This utility model provides a prefabricated rooftop takeoff and landing yard structure based on three-dimensional vibration isolation, designed with horizontal rubber vibration isolation supports and vertical vibration isolation air springs for three-dimensional vibration reduction and isolation. This effectively reduces the vibration impact on the takeoff and landing yard and the building during vertical aircraft takeoff and landing, solving the problem of the impact of vertical aircraft takeoff and landing on building vibration and personnel comfort. Furthermore, the prefabricated takeoff and landing yard has advantages such as fast construction speed, which can effectively promote the rapid and high-quality development of the low-altitude economy.

Description

Technical Field

[0001] This utility model belongs to the technical field of low-altitude take-off and landing field structure, and specifically relates to a roof-mounted prefabricated take-off and landing field structure based on three-dimensional vibration isolation. Background Technology

[0002] With the development of the low-altitude economy, urban air traffic is a crucial development direction, and the application scenarios for vertical takeoff and landing (VTOL) aircraft are becoming increasingly widespread. Takeoff and landing fields are essential infrastructure for ensuring the safe operation of VTOL aircraft. Due to the complex urban environment, takeoff and landing fields are often constructed on the rooftops of existing buildings; however, the construction of existing takeoff and landing fields presents the following problems:

[0003] The construction of reinforced concrete take-off and landing pads is time-consuming and cannot meet the needs of the rapid development of urban air traffic. While prefabricated buildings have been used in residential construction, there are currently no specific practices or requirements for prefabricated take-off and landing pads. Furthermore, the impact of vertical take-off and landing (VTOL) aircraft on the landing pad during take-off and landing causes vibrations in the building, affecting its functionality and passenger comfort. Traditional vibration isolation and reduction technologies often only achieve one-dimensional or two-dimensional isolation and cannot effectively address the three-dimensional vibrations generated during VTOL aircraft take-off and landing. Summary of the Invention

[0004] To address the aforementioned problems, the purpose of this invention is to provide a roof-mounted prefabricated take-off and landing field structure based on three-dimensional vibration isolation.

[0005] To achieve the above objectives, the rooftop prefabricated take-off and landing field structure based on three-dimensional vibration isolation provided by this utility model includes vertical vibration isolation air springs, horizontal rubber vibration isolation supports, I-beams, load-bearing plates, a high-performance vibration damping material surface layer, and I-beam node plates. The I-beams are a grid structure composed of longitudinal and transverse beams, with each intersection of a longitudinal and transverse beam serving as a node. Each set of I-beam node plates includes four upper node plates and four lower node plates. A set of four I-beam node plates is provided at each node on the I-beam. The upper node plates of the I-beams are connected to the four corners at the top of a node, and the lower node plates of the four I-beams are connected to the four corners at the bottom of a node. Each node is connected to the upper end of a vertical vibration isolation air spring through the four lower node plates of the I-beams. The lower end of the vertical vibration isolation air spring is connected to the upper end of a horizontal rubber vibration isolation support. The lower end of the horizontal rubber vibration isolation support is fixed to the roof slab. The load-bearing plate is fixed to the top surface of the I-beam using high-strength bolts through all the upper node plates of the I-beams. A high-performance vibration damping material surface layer is laid on the top surface of the load-bearing plate.

[0006] The horizontal rubber vibration isolation bearing includes a rubber layer, a steel plate interlayer, an upper connecting plate, and a lower connecting plate; wherein, the lower connecting plate is horizontally arranged and its edges are fixed to the roof floor slab by high-strength bolts; the upper connecting plate is horizontally arranged above the lower connecting plate; the upper and lower ends of the rubber layer are respectively connected to the bottom surface of the upper connecting plate and the top surface of the lower connecting plate; the steel plate interlayer is horizontally arranged, and multiple steel plate interlayers are spaced apart inside the rubber layer.

[0007] Both the upper and lower connecting plates are made of steel.

[0008] The vertical vibration isolation air spring includes an air bladder, an upper cover plate, a lower base, a vertical air nozzle, a helical spring, a lower pressure plate, a lower pressure rod, an air chamber shell, and horizontal air nozzles. The air chamber shell is a cylindrical structure with an open lower end, an opening at the center of its top surface, multiple horizontal air nozzles on its upper circumferential wall, and a vertical air nozzle connected to a high-pressure air source via a pipeline on the outer side of its top surface. The top surface of the lower base is connected to the lower port of the air chamber shell, and its edge is fixed to the upper connecting plate of the horizontal rubber vibration isolation support by high-strength bolts. The lower end of the helical spring... Fixed to the center of the top surface of the lower base, with its upper end connected to the bottom surface of the lower pressure plate, the vertical vibration isolation air spring possesses both air pressure and metal spring characteristics. The lower pressure plate is a circular plate with multiple air holes spaced apart on its outer circumference. The airbag consists of an inner rubber sleeve and an outer rubber sleeve sequentially arranged on the outer side of the air chamber shell. The middle part of the lower pressure rod is inserted through the opening in the air chamber shell, with its upper and lower ends connected to the center of the bottom surface of the upper cover plate and the center of the top surface of the lower pressure plate, respectively. The edge of the upper cover plate is simultaneously connected to the lower node plates of the four I-beams at each node using high-strength bolts.

[0009] The inner rubber sleeve is made of natural rubber material and serves as an airtight rubber layer, while the outer rubber sleeve is made of wear-resistant rubber. The upper cover, lower base, and air chamber shell are all made of steel.

[0010] The load-bearing plate is made of steel plate or prefabricated reinforced concrete floor slab.

[0011] The high-performance vibration damping material surface layer is made of high-damping elastomer composite material.

[0012] The prefabricated rooftop takeoff and landing yard structure based on three-dimensional vibration isolation provided by this utility model has the following effects: It is designed with horizontal rubber vibration isolation supports and vertical vibration isolation air springs to reduce vibration in three directions, which can effectively reduce the vibration impact on the takeoff and landing yard and buildings during the takeoff and landing of vertical takeoff and landing aircraft. It solves the problem of the impact of vertical takeoff and landing aircraft takeoff and landing on building vibration and personnel comfort, and can greatly improve the convenience of installation. At the same time, the prefabricated takeoff and landing yard has the advantages of fast construction speed, which can effectively promote the rapid and high-quality development of the low-altitude economy. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the rooftop prefabricated take-off and landing field structure layout based on three-dimensional vibration isolation provided by this utility model;

[0014] Figure 2 This is a partial schematic diagram of the rooftop prefabricated take-off and landing field structure based on three-dimensional vibration isolation provided by this utility model;

[0015] Figure 3 This is a schematic diagram of the vertical vibration isolation air spring structure in this utility model;

[0016] Figure 4 This is a schematic diagram of the horizontal rubber vibration isolation support structure in this utility model;

[0017] Figure 5 This is a schematic diagram of the combined structure of the vertical vibration isolation air spring and the horizontal rubber vibration isolation support in this utility model;

[0018] Figure 6 This is a schematic diagram of the lower pressure plate structure in this utility model;

[0019] Figure 7 This is a structural diagram of the I-beam connection and the I-beam node plate in this utility model. Detailed Implementation

[0020] The following describes in detail the roof-mounted take-off and landing field structure based on three-dimensional vibration isolation provided by this utility model with reference to the embodiments and accompanying drawings.

[0021] like Figure 1 — Figure 7 As shown, the rooftop prefabricated take-off and landing field structure based on three-dimensional vibration isolation provided by this utility model includes a vertical vibration isolation air spring 1, a horizontal rubber vibration isolation support 2, an I-beam 3, a bearing plate 4, a high-performance vibration damping material surface layer 5, and an I-beam node plate 6; wherein, the I-beam 3 is a grid structure composed of longitudinal beams and transverse beams, with the intersection of each longitudinal beam and transverse beam serving as a node; each set of I-beam node plates 6 includes four upper I-beam node plates 61 and four lower I-beam node plates 62; a set of I-beam node plates 6 is respectively set at each node on the I-beam 3, and the four upper I-beam nodes 61 are respectively set at each node on the I-beam 3. Point plates 61 are connected to the four corners at the upper end of a node, and four lower node plates 62 of the I-beams are connected to the four corners at the lower end of a node. Each node is connected to the upper end of a vertical vibration isolation air spring 1 through the four lower node plates 62 of the I-beams. The lower end of the vertical vibration isolation air spring 1 is connected to the upper end of the horizontal rubber vibration isolation support 2. The lower end of the horizontal rubber vibration isolation support 2 is fixed to the roof slab 7. The bearing plate 4 is fixed to the top surface of the I-beam 3 with high-strength bolts through all the upper node plates 61 of the I-beams. The high-performance vibration damping material surface layer 5 is laid on the top surface of the bearing plate 4.

[0022] The horizontal rubber vibration isolation support 2 includes a rubber layer 21, a steel plate interlayer 22, an upper connecting plate 23, and a lower connecting plate 24; wherein, the lower connecting plate 24 is horizontally arranged and its edges are fixed to the roof floor slab 7 by high-strength bolts; the upper connecting plate 23 is horizontally arranged above the lower connecting plate 24; the upper and lower ends of the rubber layer 21 are respectively connected to the bottom surface of the upper connecting plate 23 and the top surface of the lower connecting plate 24; the steel plate interlayer 22 is horizontally arranged, and multiple steel plate interlayers 22 are spaced apart inside the rubber layer 21.

[0023] Both the upper connecting plate 23 and the lower connecting plate 24 are made of steel.

[0024] The vertical vibration isolation air spring 1 includes an air bladder 11, an upper cover plate 12, a lower base 13, a vertical air nozzle 14, a helical spring 15, a lower pressure plate 16, a lower pressure rod 17, an air chamber shell 18, and horizontal air nozzles 19. The air chamber shell 18 is a cylindrical structure with an open lower end, an opening at the center of its top surface, multiple horizontal air nozzles 19 on its upper circumferential wall, and a vertical air nozzle 14 connected to a high-pressure air source via a pipeline on the outer side of its top surface. The top surface of the lower base 13 is connected to the lower port of the air chamber shell 18, and its edge is fixed to the upper connecting plate 23 of the horizontal rubber vibration isolation support 2 by high-strength bolts. The helical spring 15... The lower end is fixed to the middle of the top surface of the lower base 13, and the upper end is connected to the bottom surface of the lower pressure plate 16, so that the vertical vibration isolation air spring 1 has both air pressure and metal spring characteristics; the lower pressure plate 16 is a circular plate with multiple air holes spaced apart on the outer circumference; the airbag 11 is composed of an inner rubber sleeve 111 and an outer rubber sleeve 112 arranged sequentially on the outside of the air chamber shell 18; the middle part of the lower pressure rod 17 is inserted into the opening of the air chamber shell 18, and the upper and lower ends are respectively connected to the middle of the bottom surface of the upper cover plate 12 and the middle of the top surface of the lower pressure plate 16; the edge of the upper cover plate 12 is simultaneously connected to the lower node plates 62 of the four I-beams at each node by high-strength bolts.

[0025] The inner rubber sleeve 111 is made of natural rubber material and serves as an airtight rubber layer. The outer rubber sleeve 112 is made of wear-resistant rubber. The upper cover plate 12, the lower base 13, and the air chamber shell 18 are all made of steel.

[0026] The load-bearing plate 4 is made of steel plate or prefabricated reinforced concrete floor slab.

[0027] The high-performance vibration damping material surface layer 5 is made of high-damping elastomer composite material.

[0028] The construction method and working principle of the prefabricated roof landing pad structure based on three-dimensional vibration isolation provided by this utility model are described below:

[0029] During construction, workers first rationally arrange the positions of each node in the I-beam 3 according to the stress conditions of the prefabricated roof landing area. Then, at the corresponding node positions, the edges of the horizontal rubber vibration isolation bearings 2 are fixed to the roof slab 7 with high-strength bolts. After installing the horizontal rubber vibration isolation bearings 2, the lower base 13 and the upper connecting plate 23 are connected with high-strength bolts, thus combining the vertical vibration isolation air spring 1 and the horizontal rubber vibration isolation bearings 2. Next, the upper cover plate 12 is connected to the lower node plate 62 of the I-beam with high-strength bolts, and then the upper node plate 61 of the I-beam and the bearing plate 4 are connected with high-strength bolts, thus connecting the I-beam 3 and the bearing plate 4. Finally, a high-performance vibration damping material surface layer 5 is laid on the upper surface of the bearing plate 4, completing the entire assembly process.

[0030] During operation, high-pressure gas from a high-pressure gas source is injected into the air chamber shell 18 through pipelines and vertical air nozzles 14, thereby lifting the lower pressure plate 16, lower pressure rod 17, and upper cover plate 12 upwards. Subsequently, the I-beam lower node plate 62 also lifts the I-beam 3, load-bearing plate 4, and high-performance vibration-damping material surface layer 5 upwards. When a vertical takeoff and landing aircraft lands on this roof-mounted prefabricated takeoff and landing field structure based on three-dimensional vibration isolation, its gravity is applied sequentially through the high-performance vibration-damping material surface layer 5, load-bearing plate 4, and I-beam 3 onto the upper cover plate 12 of the vertical vibration-damping air spring 1. This causes the upper cover plate 12, lower pressure rod 17, and lower pressure plate 16 to move downwards together, thereby pressing... The coil spring 15 compresses and presses down the horizontal rubber vibration isolation support 2, while simultaneously squeezing the high-pressure gas inside the air chamber shell 18 into the airbag 11 through the horizontal air nozzle 19. Since the horizontal rubber vibration isolation support 2 is provided with a rubber layer 21, under the combined action of the vertical vibration isolation air spring 1 and the horizontal rubber vibration isolation support 2, the vertical take-off and landing aircraft can be subjected to three-dimensional vibration reduction and isolation, effectively reducing the vibration impact of the vertical take-off and landing aircraft on the take-off and landing field and buildings. When the vertical take-off and landing aircraft takes off from this structure, the coil spring 15 will use its elastic force to push the I-beam 3, the load-bearing plate 4 and the high-performance vibration damping material surface layer 5 upward through the lower pressure plate 16, the lower pressure rod 17 and the upper cover plate 12.

Claims

1. A three-dimensional vibration isolation based roof-mounted assembly type landing field structure, characterized by: The three-dimensional vibration isolation-based rooftop prefabricated take-off and landing field structure includes a vertical vibration isolation air spring (1), a horizontal rubber vibration isolation support (2), an I-beam (3), a bearing plate (4), a high-performance vibration damping material surface layer (5), and an I-beam node plate (6); wherein, the I-beam (3) is a grid structure composed of longitudinal beams and transverse beams, with each longitudinal beam and transverse beam intersection serving as a node; each set of I-beam node plates (6) includes four upper I-beam node plates (61) and four lower I-beam node plates (62); each node on the I-beam (3) is provided with a set of I-beam node plates (6), and the four upper I-beam node plates (61) are respectively provided with a set of I-beam node plates (62). Each node is connected to the upper four corners of a node, and the four I-beam lower node plates (62) are connected to the lower four corners of a node. Each node is connected to the upper end of a vertical vibration isolation air spring (1) through the four I-beam lower node plates (62). The lower end of the vertical vibration isolation air spring (1) is connected to the upper end of the horizontal rubber vibration isolation support (2). The lower end of the horizontal rubber vibration isolation support (2) is fixed to the roof slab (7). The bearing plate (4) is fixed to the top surface of the I-beam (3) by high-strength bolts through all the I-beam upper node plates (61). The high-performance vibration damping material surface layer (5) is laid on the top surface of the bearing plate (4).

2. The three-dimensional vibration isolation based roof modular airport structure of claim 1, wherein: The horizontal rubber vibration isolation support (2) includes a rubber layer (21), a steel plate interlayer (22), an upper connecting plate (23), and a lower connecting plate (24); wherein, the lower connecting plate (24) is horizontally arranged and its edge is fixed to the roof floor slab (7) by high-strength bolts; the upper connecting plate (23) is horizontally arranged above the lower connecting plate (24); the upper and lower ends of the rubber layer (21) are respectively connected to the bottom surface of the upper connecting plate (23) and the top surface of the lower connecting plate (24); the steel plate interlayer (22) is horizontally arranged and multiple steel plate interlayers (22) are spaced apart inside the rubber layer (21).

3. The three-dimensional vibration isolation based roof modular airport structure of claim 2, wherein: Both the upper connecting plate (23) and the lower connecting plate (24) are made of steel.

4. The rooftop prefabricated take-off and landing field structure based on three-dimensional vibration isolation according to claim 1, characterized in that: The vertical vibration isolation air spring (1) includes an air bag (11), an upper cover plate (12), a lower base (13), a vertical air nozzle (14), a helical spring (15), a lower pressure plate (16), a lower pressure rod (17), an air chamber shell (18), and a horizontal air nozzle (19); wherein, the air chamber shell (18) is a cylindrical structure with an open lower end, an opening at the center of the top surface, multiple horizontal air nozzles (19) on the upper part of the circumferential wall, and a vertical air nozzle (14) connected to a high-pressure air source through a pipeline on the outer part of the top surface; the top surface of the lower base (13) is connected to the lower port of the air chamber shell (18), and the edge is fixed to the upper connecting plate (23) of the horizontal rubber vibration isolation support (2) by high-strength bolts; the helical spring The lower end of (15) is fixed to the middle of the top surface of the lower base (13), and the upper end is connected to the bottom surface of the lower pressure plate (16), so that the vertical vibration isolation air spring (1) has both air pressure and metal spring characteristics; the lower pressure plate (16) is a circular plate with multiple air holes spaced apart on the outer circumference; the airbag (11) is composed of an inner rubber sleeve (111) and an outer rubber sleeve (112) arranged sequentially on the outside of the air chamber shell (18); the middle part of the lower pressure rod (17) is set through the opening in the air chamber shell (18), and the upper and lower ends are respectively connected to the middle of the bottom surface of the upper cover plate (12) and the middle of the top surface of the lower pressure plate (16); the edge of the upper cover plate (12) is simultaneously connected to the lower node plate (62) of the four I-beams at each node by high-strength bolts.

5. The three-dimensional vibration isolation based roof modular airport structure of claim 4, wherein: The inner rubber sleeve (111) is made of natural rubber material as an airtight rubber layer, and the outer rubber sleeve (112) is made of wear-resistant rubber; the upper cover plate (12), the lower base (13) and the air cavity shell (18) are all made of steel.

6. The three-dimensional vibration isolation based roof modular airport structure of claim 4, wherein: The bearing plate (4) is made of steel plate or prefabricated reinforced concrete floor slab.

7. The three-dimensional vibration isolation based roof modular airport structure of claim 4, wherein: The high-performance vibration damping material surface layer (5) is made of high-damping elastomer composite material.

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