Single-layer lattice shell fixed support structure

Abstract

The present invention discloses a single-layer lattice shell fixed support structure, comprising a lattice shell shell, a lattice shell support member mounted on the lattice shell shell, and a lattice shell reinforcement member mounted on the lattice shell shell. The lattice shell reinforcement member is formed by a recess in the lattice shell, and the lattice shell support member is formed by the lattice shell recessing and contacting the ground. The lattice shell support member is cylindrical, with a bell-shaped end facing the lattice shell. The end of the lattice shell support member facing the ground is provided with a fixing assembly for connection with concrete pouring. This solution provides higher strength and is adaptable to large-span projects.

Description

Technical Field

[0001] The invention relates to building construction, in particular to a single-layer lattice shell fixed support structure. Background Art

[0002] Single-layer lattice shell structures, favored by architects due to their slender member dimensions, are frequently used in large public buildings for long-span roofs and skylights. Common lattice shell structures primarily consist of geometrically regular spherical, cylindrical, and elliptical paraboloidal lattice shells. These structures have been extensively researched and implemented in China, and these commonly used single-layer lattice shell forms have been incorporated into the national industry standard, "Technical Specifications for Spatial Grid Structures" (JGJ 7-2010), providing a valuable reference for structural engineers. With the increasing diversity of building floor plans, architectural forms are no longer limited to regular rectangles, circles, and ellipses. A variety of long-span spatial structures have emerged. When using single-layer lattice shell structures as load-bearing structures for roofs or skylights, the shell boundaries must align with the building's plan shape to achieve optimal architectural spatial effects.

[0003] As single-layer lattice shells are increasingly used in long-span spatial structures, and the spans are getting longer and longer, single-layer lattice shells have significant shortcomings in terms of support. In long-span solutions, they are often prone to insufficient strength, leading to safety hazards. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a single-layer lattice shell fixed support structure that can provide higher strength and adapt to large-span solutions.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a single-layer lattice shell fixed support structure, comprising a lattice shell body, a lattice shell support member arranged on the lattice shell body, and a lattice shell reinforcement member arranged on the lattice shell body, wherein the lattice shell reinforcement member is formed by the lattice shell being concave, and the lattice shell support member is formed by the lattice shell being concave and in contact with the ground;

[0006] The lattice shell support is cylindrical, and one end corresponding to the lattice shell is a bell mouth;

[0007] The end of the lattice shell support corresponding to the ground is provided with a fixing assembly for connection in conjunction with concrete pouring.

[0008] As a further improvement of the present invention, the fixing assembly includes a fixing portion and an adjusting portion, wherein the fixing portion is used to cooperate with the lattice shell support for fixed connection, and the adjusting portion is used to cooperate with the fixing portion for adjustment to fine-tune the position of the lattice shell support.

[0009] As a further improvement of the present invention, the adjusting part includes a telescopic connecting rod connected to the fixed part, a first connecting member hinged on the connecting rod, a second connecting member hinged on the fixed part, and an adjusting screw hinged on the fixed part. The first connecting member and the second connecting member are hinged. A rotatable connecting seat for rotating the connecting adjusting screw is provided on the fixed part. A rotatable adjusting seat for threadedly connecting the adjusting screw is provided on the first connecting member. The adjusting screw adjusts the degree to which the first connecting member and the second connecting member are flipped away from the connecting rod by rotation so as to adjust the protruding length of the connecting rod on the fixed part. The adjusting screw is axially fixed to the connecting seat and is circumferentially rotatable.

[0010] As a further improvement of the present invention, a base is further provided at the bottom of the connecting rod, and the first connecting member and the adjustment seat are both located on the base; retractable telescopic rods are also provided on both sides of the base, and water-absorbing resin is provided at the position of the telescopic rod in the base, and a plurality of through holes connecting the water-absorbing resin with the outside are distributed on the base, and the size of the through holes is smaller than the particle size of the water-absorbing resin. The base is used to cooperate with the concrete for water infiltration, and the telescopic rod is pushed out after the water-absorbing resin absorbs water and expands, thereby increasing the connection area with the concrete.

[0011] As a further improvement of the present invention, the water-absorbing resin is C-shaped.

[0012] As a further improvement of the present invention, the surface of the water-absorbing resin is frosted.

[0013] As a further improvement of the present invention, a groove is provided on the telescopic rod at a position corresponding to the adjusting screw, and the groove narrows from one side of the outer end portion toward the base. One end of the adjusting screw corresponding to the telescopic rod is located in the groove, and as the telescopic rod is extended, the adjusting screw abuts against the side wall of the groove to limit the position change of the first connecting member and the second connecting member; the telescopic rod is circumferentially fixedly connected to the base.

[0014] As a further improvement of the present invention, the telescopic rod and the base are plugged into each other through a keyway fitting to form a telescopic fit, and the keyway fitting limits the circumferential rotation of the telescopic rod.

[0015] The beneficial effects of the present invention are that this solution can form a local support through the concave part in the grid shell. The local support is the grid shell reinforcement part, and some areas are directly concave from the grid shell to contact the ground, forming a columnar support, which cooperates with the ground for support. At this time, it can constitute local top reinforcement and local ground support, and has an aesthetic effect. The grid shell support is cylindrical and forms a trumpet-shaped structure, which can reduce the floor space, reduce the impact on the site, and improve the aesthetics. At the same time, the trumpet-shaped structure can form an arched structure with strong support strength. In order to make the contact and connection effect between the grid shell and the ground stronger, the bottom of the grid shell support can be directly connected to the concrete using a fixing component, and fixed with concrete to further improve the connection strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the position structure of the lattice shell support member of the present invention;

[0017] Figure 2 Schematic diagram of the lattice shell structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixing assembly of the present invention;

[0019] Figure 4 This is a schematic diagram of the main structure of the fixing assembly of the present invention;

[0020] Figure 5 for Figure 3 Enlarged view of part A in .

[0021] Figure numbers: 1. lattice shell; 2. lattice shell support; 3. lattice shell reinforcement; 4. fixing assembly; 41. fixing part; 42. adjusting part; 421. connecting rod; 4211. base; 4212. telescopic rod; 4213. groove; 422. first connecting part; 423. second connecting part; 424. adjusting screw; 425. connecting seat; 426. adjusting seat. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0023] Reference Figure 1-5 As shown,

[0024] A single-layer lattice shell fixed support structure, comprising a lattice shell 1, a lattice shell support member 2 arranged on the lattice shell 1, and a lattice shell reinforcement member 3 arranged on the lattice shell 1, wherein the lattice shell reinforcement member 3 is formed by the lattice shell being concave, and the lattice shell support member 2 is formed by the lattice shell being concave and in contact with the ground;

[0025] The lattice shell support member 2 is cylindrical, and one end corresponding to the lattice shell is a bell mouth;

[0026] The end of the lattice shell support 2 corresponding to the ground is provided with a fixing component 4 for connection in conjunction with concrete pouring.

[0027] In this solution, local support can be formed by the concave part in the grid shell. The local support is the grid shell reinforcement 3, and some areas are directly concave from the grid shell to contact the ground, forming a columnar support, which cooperates with the ground for support. At this time, it can constitute local top reinforcement and local ground support, and at the same time has an aesthetic effect.

[0028] The lattice shell support member 2 is cylindrical and forms a trumpet-mouth structure, which can reduce the floor space, reduce the impact on the site, and improve the aesthetics. At the same time, the trumpet-mouth structure can form an arch structure with strong supporting strength.

[0029] In order to make the contact and connection between the grid shell and the ground stronger, the bottom of the grid shell support 2 can be directly connected to the concrete using a fixing component 4 and fixed with concrete to further improve the connection strength.

[0030] This solution can be based on strengthening the single-layer lattice shell structure, making the lattice shell structure have higher strength and reducing safety hazards.

[0031] Specifically, the fixing assembly 4 is used to cooperate with the concrete for connection, and also needs to directly abut against the ground between the poured concrete, wherein the fixing assembly 4 includes a fixing portion 41 and an adjusting portion 42, wherein the fixing portion 41 is used to cooperate with the grid shell support 2 for fixed connection, and the adjusting portion 42 is used to cooperate with the fixing portion 41 for adjustment to fine-tune the position of the grid shell support 2.

[0032] The fixing portion 41 is used to be fixedly connected with the lattice shell support 2 and welded or bolted together with the lattice shell support 2. The fixing portion 41 can be adjusted on the ground first and then installed and fixed with the lattice shell support 2.

[0033] The adjustment portion 42 is used to adjust the position of the lattice shell support member 2, facilitating positioning and providing positioning for subsequent concrete pouring. The adjustment portion 42 cooperates with the fixing portion 41 to fine-tune the support state, such as the angle, of the lattice shell support member 2. This adjustment ensures more accurate coordination of the entire lattice shell and avoids affecting the strength and stress state due to inconsistent support states at different locations of the lattice shell.

[0034] In the specific setting, the adjusting part 42 includes a connecting rod 421 telescopically connected to the fixed part 41, a first connecting member 422 hinged on the connecting rod 421, a second connecting member 423 hinged on the fixed part 41, and an adjusting screw 424 hinged on the fixed part 41. The first connecting member 422 and the second connecting member 423 are hinged, and a rotatable connecting seat 425 for rotating the connecting adjusting screw 424 is provided on the fixed part 41. A rotatable adjusting seat 426 for threading the connecting adjusting screw 424 is provided on the first connecting member 422. The adjusting screw 424 adjusts the degree to which the first connecting member 422 and the second connecting member 423 are flipped away from the connecting rod 421 by rotation, so as to adjust the protruding length of the connecting rod 421 on the fixed part 41; the adjusting screw 424 is axially fixed to the connecting seat 425 and is circumferentially rotatable.

[0035] As shown in the drawings, the first connecting member 422 and the second connecting member 423 are in a hinged state, and have the function of relative rotation, while also being able to provide support.

[0036] When the position between the connecting rod 421 and the fixed part 41 needs to be adjusted, the expansion state between the first connecting member 422 and the second connecting member 423 can be driven by rotating the adjusting screw 424. As the first connecting member 422 and the second connecting member 423 expand, the connecting rod 421 can be extended and retracted on the fixed part 41 and provide support. The adjusting screw 424 and the connecting seat 425 and the adjusting seat 426 cooperate and the self-locking effect of the threaded connection are used to lock. In particular, the connecting rod 421 and the fixed part 41 in this solution will remain in a downwardly pressed state. At this time, the threaded connection of the adjusting screw 424 is subjected to a large axial force, and the self-locking effect is more stable, which can make the adjusted state more stable. On the other hand, this solution uses the first connecting member 422 and the second connecting member 423 as a transition, rather than directly threading the connecting rod 421 on the fixed part 41. On the one hand, it is convenient to rotate the screw for adjustment, and on the other hand, it can increase the connection strength with the concrete during pouring, and can form a connection between the side reinforcement and the concrete. The connecting seat 425 and the adjusting seat 426 need to be set to rotate so that they can be adjusted when the first connecting member 422 and the second connecting member 423 are expanded and retracted. During this adjustment process, as the adjusting screw 424 rotates, the angle of the adjusting screw 424 will also change. The rotation of the connecting seat 425 and the adjusting seat 426 can adapt to this change. The connecting seat 425 is used to cooperate with the adjusting screw 424 for rotational connection, and the axial direction is fixed, while the adjusting screw 424 and the adjusting seat 426 are threadedly connected, which will cooperate with the rotation of the adjusting screw 424 to cause the first connecting member 422 and the second connecting member 423 to change state.

[0037] In order to further improve the fixing strength between the concrete and the connecting rod 421, a base 4211 is further provided at the bottom of the connecting rod 421, and the first connecting member 422 and the adjustment seat 426 are both located on the base 4211; retractable telescopic rods 4212 are also provided on both sides of the base 4211, and water-absorbing resin is provided at the position corresponding to the telescopic rod 4212 in the base 4211. A plurality of through holes connecting the water-absorbing resin with the outside are distributed on the base 4211, and the size of the through holes is smaller than the particle size of the water-absorbing resin. The base 4211 is used to cooperate with the concrete for water infiltration, and the telescopic rod 4212 is pushed out after the water-absorbing resin absorbs water and expands, thereby increasing the connection area with the concrete.

[0038] Water-absorbing resin absorbs moisture from the concrete, and its expansion allows telescopic rod 4212 to be pushed out. In this solution, telescopic rod 4212 is initially retracted and then extended after the concrete is poured to increase the contact area with the concrete. This solution reduces adjustment resistance and maintains a smaller initial size, facilitating installation and adjustment. After installation, there's no need to manually adjust the extension of telescopic rod 4212; it automatically adjusts to the moisture content of the concrete.

[0039] In addition, this structure can also cooperate with the adjusting screw 424. Specifically, a groove 4213 is provided on the telescopic rod 4212 at a position corresponding to the adjusting screw 424, and the groove 4213 narrows from the outer end side toward the base 4211. The end of the adjusting screw 424 corresponding to the telescopic rod 4212 is located in the groove 4213, and as the telescopic rod 4212 is extended, the adjusting screw 424 abuts against the side wall of the groove 4213 to limit the position change of the first connecting member 422 and the second connecting member 423; the telescopic rod 4212 is circumferentially fixedly connected to the base 4211.

[0040] The position of the groove 4213 is a spiral structure, which is mainly used to cooperate with the adjusting screw 424. Since the angle of the adjusting screw 424 will change during the adjustment process, as shown in the figure, one end of the groove 4213 is larger than the other end, and the larger end faces outward to adapt to the change of the angle. After the adjusting screw 424 is adjusted to a fixed position, as the grouting is injected, the water-absorbing resin absorbs water, and the telescopic rod 4212 extends. In the initial state, the adjusting screw 424 is located at the larger end of the groove 4213. At this time, the adjusting screw 424 will not interfere with the groove 4213. The side walls abut against each other, and as the telescopic rod 4212 extends, until the adjusting screw 424 abuts the side wall of the groove 4213, the telescopic rod 4212 is used to limit the adjusting screw 424, further enhancing its self-locking effect, stabilizing the state of the first connecting member 422 and the second connecting member 423 until the pouring and grouting are completed and solidified to form a connection, effectively stabilizing the adjusted state of the lattice shell. At the same time, it also limits the further extension of the telescopic rod 4212, thereby generating a restrictive effect, eliminating the need for additional structure to limit the extension of the telescopic rod 4212. This solution automatically adapts to the concrete grouting process, eliminating the need for manual intervention, enabling higher construction efficiency and increasing the stability of the first connecting member 422 and the second connecting member 423 after adjustment.

[0041] In order to make the effect more stable, the telescopic rod 4212 and the base 4211 are plugged into each other through a keyway to form a telescopic fit, and the keyway fit limits the circumferential rotation of the telescopic rod 4212.

[0042] Limiting the circumferential rotation of the telescopic rod 4212 can make the limiting effect between the groove 4213 and the adjusting screw 424 more stable.

[0043] The water-absorbing resin can be of a C-shaped structure, which has a better water absorption and expansion effect and can reduce the amount of material used. In a further configuration, the surface of the water-absorbing resin is frosted to improve water absorption efficiency and expand faster.

[0044] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A single-layer lattice shell fixed support structure, characterized in that: It includes a lattice shell, a lattice shell support member arranged on the lattice shell, and a lattice shell reinforcement member arranged on the lattice shell, wherein the lattice shell reinforcement member is formed by the lattice shell being concave, and the lattice shell support member is formed by the lattice shell being concave and in contact with the ground; The lattice shell support is cylindrical, and one end corresponding to the lattice shell is a bell mouth; The end of the lattice shell support corresponding to the ground is provided with a fixing assembly for connection with concrete pouring; The fixing assembly includes a fixing portion and an adjusting portion, wherein the fixing portion is used to cooperate with the lattice shell support member for fixed connection, and the adjusting portion is used to cooperate with the fixing portion for adjustment to fine-tune the position of the lattice shell support member; The adjusting part includes a telescopic connecting rod connected to the fixed part, a first connecting member hinged on the connecting rod, a second connecting member hinged on the fixed part, and an adjusting screw hinged on the fixed part. The first connecting member and the second connecting member are hinged. A rotatable connecting seat for rotating the connecting adjusting screw is provided on the fixed part. A rotatable adjusting seat for threading the connecting adjusting screw is provided on the first connecting member. The adjusting screw adjusts the degree to which the first connecting member and the second connecting member are flipped away from the connecting rod by rotation so as to adjust the protruding length of the connecting rod on the fixed part. The adjusting screw is axially fixed to the connecting seat and is circumferentially rotatable.

2. The single-layer lattice shell fixed support structure according to claim 1, characterized in that: A base is also provided at the bottom of the connecting rod, and the first connecting member and the adjustment seat are both located on the base; retractable telescopic rods are also provided on both sides of the base, and water-absorbing resin is provided at positions corresponding to the telescopic rods in the base. A plurality of through holes are distributed on the base to connect the water-absorbing resin with the outside, and the size of the through holes is smaller than the particle size of the water-absorbing resin. The base is used to cooperate with concrete for water infiltration, and the telescopic rod is pushed out after the water-absorbing resin absorbs water and expands, thereby increasing the connection area with the concrete.

3. The single-layer lattice shell fixed support structure according to claim 2, characterized in that: The water-absorbing resin is in a C shape.

4. The single-layer lattice shell fixed support structure according to claim 3, characterized in that: The surface of the water-absorbing resin is frosted.

5. The single-layer lattice shell fixed support structure according to claim 2, characterized in that: A groove is provided on the telescopic rod at a position corresponding to the adjusting screw, and the groove narrows from one side of the outer end portion toward the base. One end of the adjusting screw corresponding to the telescopic rod is located in the groove, and as the telescopic rod is extended, the adjusting screw abuts against the side wall of the groove to limit the position change of the first connecting member and the second connecting member; the telescopic rod is fixedly connected to the base in a circumferential direction.

6. The single-layer lattice shell fixed support structure according to claim 5, characterized in that: The telescopic rod and the base are plugged in through a keyway to form a telescopic fit, and the keyway fit limits the circumferential rotation of the telescopic rod.

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