CN113898074A - Improve tensile membrane structure creep lax boundary support - Google Patents
Improve tensile membrane structure creep lax boundary support Download PDFInfo
- Publication number
- CN113898074A CN113898074A CN202111245764.3A CN202111245764A CN113898074A CN 113898074 A CN113898074 A CN 113898074A CN 202111245764 A CN202111245764 A CN 202111245764A CN 113898074 A CN113898074 A CN 113898074A
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- support
- membrane
- diamond
- fixing jig
- boundary
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/36—Bearings or like supports allowing movement
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
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- Architecture (AREA)
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- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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- Tents Or Canopies (AREA)
Abstract
The invention discloses a boundary support for improving creep relaxation of a tension membrane structure, which comprises a connecting device, wherein the connecting device comprises a fixing clamp for fixing membrane cloth and a tensioning mechanism for tensioning the membrane cloth, the tensioning mechanism comprises a diamond-shaped deformation support and a strong spring arranged along one diagonal line of the diamond-shaped deformation support, two end parts of the strong spring are respectively connected with the top point of the diamond-shaped deformation support through a spring connecting piece, and one top point of the diamond-shaped deformation support is fixedly connected with one side of the fixing clamp; the extending direction of the strong spring is consistent with the tensioning direction of the membrane cloth. The boundary support can provide the membrane material with the functions of automatically compensating the membrane surface stress and adjusting the degree of tightness of the membrane surface, can automatically adjust the boundary support when the membrane surface stress is lost and the membrane surface is subjected to creep relaxation, can automatically adjust the membrane surface stress and the membrane surface tension degree under static and dynamic loads, and can provide buffering and protection effects for a tensioned membrane structure.
Description
Technical Field
The invention relates to a boundary support for improving creep relaxation of a tension membrane structure.
Background
The tension membrane structure is a space structure system formed by certain pretension and constraint of membrane cloth. Under the action of pretension and external static and dynamic loads, the membrane cloth is easy to creep and lose stress, so that the membrane cloth is easy to loose and is greatly deformed, the local rigidity of the structure is reduced, the wind vibration phenomenon is generated, and the structure is unstable or even collapses.
For a tensioned membrane structure, a fixed and non-deformable boundary support is mostly adopted at present, and the boundary support is only used for adjusting the pretension force to keep the membrane surface stress in a design state after the tensioned membrane structure is installed, so that a larger tensioning force can not be provided for the tensioned membrane, and the membrane surface stress can not be adjusted. And the thin film at the joint of the tension film structure and the fixed boundary has more holes, which easily causes the tearing and damage at the edge of the thin film.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a boundary support for improving creep relaxation of a tensioned membrane structure, aiming at the problem that the membrane surface stress cannot be adjusted in the prior art that the tensioned membrane boundary support is a fixed and non-deformable structure.
The technical scheme is as follows: the boundary support for improving the creep relaxation of the tensioned membrane structure comprises a connecting device, wherein the connecting device comprises a fixing clamp for fixing membrane cloth and a tensioning mechanism for tensioning the membrane cloth, the tensioning mechanism comprises a diamond-shaped deformation support and a strong spring arranged along one diagonal line of the diamond-shaped deformation support, two end parts of the strong spring are respectively connected with the top point of the diamond-shaped deformation support through a spring connecting piece, and one top point of the diamond-shaped deformation support is fixedly connected with one side of the fixing clamp; the extending direction of the strong spring is consistent with the tensioning direction of the membrane cloth.
The diamond-shaped deformation support is fixedly connected with the fixed support through the vertex on one side, far away from the fixed clamp, of the diamond-shaped deformation support.
Wherein, mounting fixture all is equipped with the rubber of taking the raised grain on going up mounting fixture and the lower mounting fixture including relative last mounting fixture and the lower mounting fixture that sets up, goes up the raised grain rubber intermeshing on mounting fixture and the lower mounting fixture, and the membrane cloth is fixed in mounting fixture through intermeshing's last mounting fixture and lower mounting fixture.
The upper fixing clamp and the lower fixing clamp are provided with bolt holes in one-to-one correspondence, and the upper fixing clamp and the lower fixing clamp are fixedly connected through bolts.
Wherein, rhombus deformation support is enclosed by four connecting steel handles and closes to form, and adjacent connecting steel handle passes through adjusting bolt and rotates the connection.
The fixed clamp is further provided with a groove, threaded through holes are symmetrically formed in two sides of the groove, one vertex of the diamond-shaped deformation support extends into the groove, an adjusting bolt penetrates through the threaded through hole of the groove and a threaded hole in the vertex to be connected with a steel handle to fix the diamond-shaped deformation support and the fixed clamp, and one end of a strong spring is fixedly connected with the adjusting bolt in the position through a spring connecting piece.
The spring connecting piece comprises an annular bracket, a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are provided with connecting ends; the opposite two sides of the annular support are respectively provided with a through hole with internal threads, the first connecting rod and the second connecting rod are connecting rods with external threads, and the connecting rods with external threads of the first connecting rod and the second connecting rod respectively extend into the annular support from the through holes at the two ends of the annular support.
Has the advantages that: the boundary support can provide the membrane material with the functions of automatically compensating the membrane surface stress and adjusting the degree of tightness of the membrane surface, can automatically adjust the boundary support when the membrane surface stress is lost and the membrane surface is subjected to creep relaxation, can automatically adjust the membrane surface stress and the membrane surface tension degree under static and dynamic loads, and can provide buffering and protection effects for a tensioned membrane structure.
Drawings
FIG. 1 is a top view of a boundary support of the present invention;
FIG. 2 is a side view of the boundary support of the present invention;
FIG. 3 is a schematic view of the connection of the stretch film to the holding jig;
FIG. 4 is a schematic view of a spring connector;
FIG. 5 is a schematic structural view of a second connecting steel shank and a fourth connecting steel shank;
FIG. 6 is a schematic structural view of a first connecting steel shank and a third connecting steel shank;
fig. 7 is a schematic structural view of an upper fixing jig.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 7, the boundary support for improving creep relaxation of a tensioned membrane structure of the present invention includes a fixed support and a connecting device 7 fixedly connected to the fixed support, wherein one end of the connecting device 7 is connected to the fixed support, and the other end is connected to a tensioned membrane, that is, the connecting device 7 is disposed between the tensioned membrane and the fixed support; the connecting device 7 comprises a fixing clamp 1 for fixing the membrane cloth 4 and a tensioning mechanism 6 for tensioning the membrane cloth 4, the tensioning mechanism 6 comprises a diamond-shaped deformation support 3 and a strong spring 2 arranged along one diagonal line of the diamond-shaped deformation support 3, two end parts of the strong spring 2 are respectively connected with the top points of the diamond-shaped deformation support 3 through spring connecting pieces, and one top point of the diamond-shaped deformation support 3 is fixedly connected with one side of the fixing clamp 1; the extending direction of the strong spring 2 is consistent with the tensioning direction of the membrane cloth 4; the vertex of the rhombus deformation support 3 at the side far away from the fixed clamp 1 (the vertex at the adjusting bolt III 53) is fixedly connected with the fixed support. The pretightening force of the bolts 41 screwed at the bolt holes 16 on the fixing clamp 1 enables large-area friction force to be generated between the rubber 15 with raised grains and the film 4, the purpose of no stress can be achieved at the opening of the film (the opening-through holes on the film are arranged in one-to-one correspondence with the bolt holes 16 on the fixing clamp 1, and the film is fixed between the upper fixing clamp 11 and the lower fixing clamp 12 through the bolts 41), and meanwhile, the stress of the contact area between the film and the fixing clamp is uniform.
Wherein, mounting fixture 1 is including relative last mounting fixture 11 and lower mounting fixture 12 that sets up, it all is equipped with the rubber 15 of taking the raised grain on mounting fixture 11 and the lower mounting fixture 12 to go up mounting fixture 11, go up raised grain rubber 15 intermeshing on mounting fixture 11 and the lower mounting fixture 12, membrane cloth 4 is fixed between last mounting fixture 11 and lower mounting fixture 12, it wraps up in the membrane body 4 to go up mounting fixture 11 and the lower mounting fixture 12 intermeshing district clamp, it is equipped with the bolt hole 16 of one-to-one on mounting fixture 11 and the lower mounting fixture 12 to go up mounting fixture 11 and lower mounting fixture 12 through a plurality of bolt 41 fixed connection.
The rhombic deformation support 3 is formed by enclosing four connecting steel handles, wherein the four connecting steel handles are a first connecting steel handle 31, a second connecting steel handle 32, a third connecting steel handle 33 and a fourth connecting steel handle 34 respectively, and adjacent connecting steel handles are rotatably connected through adjusting bolts; one vertex formed by the fourth connecting steel handle 34 and the first connecting steel handle 31 extends into the groove 14 of the fixing clamp 1, threaded through holes 13 are symmetrically formed in two sides of the groove 14, and an adjusting bolt I51 sequentially penetrates through the threaded through hole of the upper fixing clamp 11, the threaded hole 35 in the end part of the fourth connecting steel handle 34 and the first connecting steel handle 31 and the threaded through hole of the lower fixing clamp 12, namely one connecting end of the fourth connecting steel handle 34 and the first connecting steel handle 31 is connected between the upper fixing clamp 11 and the lower fixing clamp 12 through an adjusting bolt I51; the first connecting steel handle 31 and the second connecting steel handle 32 are rotatably connected through an adjusting bolt II52, the second connecting steel handle 32 and the third connecting steel handle 33 are rotatably connected through an adjusting bolt III53, the third connecting steel handle 33 and the fourth connecting steel handle 34 are rotatably connected through an adjusting bolt IV54, the four connecting steel handles form a rhombus, the rhombus can deform, and the four connecting steel handles are on the same horizontal plane. One end of a spring connecting piece I21 is connected with the second connecting steel handle 32 and the third connecting steel handle 33 through an adjusting bolt III53, and the other end of the spring connecting piece I21 is connected with the strong spring 2; one end of a spring connecting piece II22 is connected with the fourth connecting steel handle 34, the first connecting steel handle 31, the upper fixing clamp 11 and the lower fixing clamp 12 through an adjusting bolt I51, and the other end of the spring connecting piece II22 is connected with the strong spring 2; meanwhile, the spring connector I21, the spring connector II22, the strong spring 2 and the diamond-shaped deformation bracket 3 are on the same horizontal plane.
The spring connector I21 and the spring connector II22 have the same structure and respectively comprise an annular bracket 61, a first connecting rod 62 with a connecting end 65 and a second connecting rod 63; the relative both sides of ring carrier 61 are equipped with in-band screw thread through-hole 64 respectively, head rod 62 and second connecting rod 63 are the connecting rod 66 of outband screw thread, stretch into ring carrier 61 from the through-hole 64 at ring carrier 61 both ends respectively with head rod 62 and the connecting rod 66 of second connecting rod 63 outband screw thread, head rod 62 and second connecting rod 63 are connected through interior external screw thread mutually supporting with ring carrier 61, the degree of the adjustable membrane face elasticity of rhombus deformation support 3 is adjusted through the length of adjusting head rod 62 and second connecting rod 63 and stretching into in the ring carrier 61.
The friction force between the wavy rubber and the film on the fixing clamp 1 and the pretension force of the film form a force balance, the friction force is generated by the bolt on the fixing clamp 1 through the pretension force of the bolt, the pulling force on the fixing clamp 1 is transmitted to the diamond-shaped deformation support 3 through the adjusting bolt I51, and the pulling force on the diamond-shaped deformation support 3 is transmitted to the fixed support through the adjusting bolt III 53. When the creep of the membrane surface of the membrane cloth 4 is loosened, the membrane surface of the membrane cloth 4 can generate friction force with the contact surface of the fixing clamp 1, so that the fixing clamp 1 has reverse acting force on the membrane cloth 4, the strong spring 2 fixedly connected with the fixing clamp 1 contracts for certain displacement, the diamond-shaped deformation support 3 deforms, the fixing clamp 1 is driven to move in the reverse direction relative to the membrane cloth 4, the creep loosening is eliminated, and the membrane surface is still in a tight state.
When the tension membrane structure is subjected to dynamic loads such as wind, hail and the like, the strong spring 2 and the diamond-shaped deformation support 3 are repeatedly deformed to provide a certain buffer protection effect for the tension membrane, and simultaneously, the energy brought by the dynamic loads is consumed. When the tension film has creep relaxation in a certain range, the strong spring 2 can automatically adjust the degree of tightness of the film surface; when the tensile membrane has larger creep relaxation and exceeds the adjusting range of the strong spring 2, the adjusting range of the tightness degree of the strong spring 2 to the membrane surface is adjusted by adjusting the spring connecting pieces (21, 22) on the diamond-shaped deformation bracket 3. The device can also remove the strong spring 2, namely only a spring connecting piece is arranged between the adjusting bolt I51 and the adjusting bolt III53, at the moment, the diamond-shaped bracket cannot be deformed, and only the spring connecting piece can be manually adjusted, thereby achieving the purpose of adjusting the tightness degree of the film surface.
Claims (7)
1. The utility model provides an improve tensile membrane structure creep relaxation's boundary support which characterized in that: the membrane cloth tensioning device comprises a connecting device (7), wherein the connecting device (7) comprises a fixing clamp (1) for fixing membrane cloth (4) and a tensioning mechanism (6) for tensioning the membrane cloth (4), the tensioning mechanism (6) comprises a diamond-shaped deformation support (3) and a strong spring (2) placed along one diagonal line of the diamond-shaped deformation support (3), two end parts of the strong spring (2) are respectively connected with the top point of the diamond-shaped deformation support (3) through a spring connecting piece, and one top point of the diamond-shaped deformation support (3) is fixedly connected with one side of the fixing clamp (1); the extending direction of the strong spring (2) is consistent with the tensioning direction of the membrane cloth (4).
2. A boundary support for improving creep relaxation of a tensioned membrane structure as recited in claim 1 wherein: the diamond-shaped deformation support is characterized by further comprising a fixed support, and the top point of one side, far away from the fixed clamp (1), of the diamond-shaped deformation support (3) is fixedly connected with the fixed support.
3. A boundary support for improving creep relaxation of a tensioned membrane structure as recited in claim 1 wherein: fixing jig (1) is including relative last fixing jig (11) and lower fixing jig (12) that sets up, goes up all to be equipped with on fixing jig (11) and lower fixing jig (12) rubber (15) of taking the raised grain, goes up raised grain rubber intermeshing on fixing jig (11) and lower fixing jig (12), and membrane cloth (4) are fixed in fixing jig (1) through intermeshing's last fixing jig (11) and lower fixing jig (12).
4. A boundary support for improving creep relaxation of a tensioned membrane structure as recited in claim 3 wherein: the upper fixing clamp (11) and the lower fixing clamp (12) are provided with bolt holes in one-to-one correspondence, and the upper fixing clamp (11) and the lower fixing clamp (12) are fixedly connected through a plurality of bolts (41).
5. A boundary support for improving creep relaxation of a tensioned membrane structure as recited in claim 1 wherein: the rhombus deformation support (3) is formed by enclosing four connecting steel handles, and the adjacent connecting steel handles are rotationally connected through an adjusting bolt.
6. A boundary support for improving creep relaxation of a tensioned membrane structure as recited in claim 1 wherein: fixing jig (1) still is equipped with recess (14), the bilateral symmetry of recess (14) is equipped with screw through hole (13), one of them summit of rhombus deformation support (3) stretches into in recess (14), adjusting bolt (51) of this summit department passes screw through hole (13) and the summit department of recess (14) and connects screw hole (35) on the steel shank with rhombus deformation support (3) and fixing jig (1) fixed, strong spring (2) one end is through spring coupling and adjusting bolt (51) fixed connection of this department.
7. A boundary support for improving creep relaxation of a tensioned membrane structure as recited in claim 1 wherein: the spring connecting piece comprises an annular bracket (61), a first connecting rod (62) and a second connecting rod (63) with connecting ends; the two opposite sides of the annular support (61) are respectively provided with through holes (64) with internal threads, the first connecting rod (62) and the second connecting rod (63) are connecting rods with external threads, and the connecting rods with the external threads of the first connecting rod (62) and the second connecting rod (63) respectively extend into the annular support (61) from the through holes (64) at the two ends of the annular support (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111245764.3A CN113898074B (en) | 2021-10-26 | 2021-10-26 | Improve tensile membrane structure creep lax boundary support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111245764.3A CN113898074B (en) | 2021-10-26 | 2021-10-26 | Improve tensile membrane structure creep lax boundary support |
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| Publication Number | Publication Date |
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| CN113898074A true CN113898074A (en) | 2022-01-07 |
| CN113898074B CN113898074B (en) | 2023-03-21 |
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| CN202111245764.3A Active CN113898074B (en) | 2021-10-26 | 2021-10-26 | Improve tensile membrane structure creep lax boundary support |
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