CN115791453B - Building membrane structure extensibility test machine - Google Patents
Building membrane structure extensibility test machine Download PDFInfo
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- CN115791453B CN115791453B CN202310043375.5A CN202310043375A CN115791453B CN 115791453 B CN115791453 B CN 115791453B CN 202310043375 A CN202310043375 A CN 202310043375A CN 115791453 B CN115791453 B CN 115791453B
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Abstract
The invention discloses a building film structure extensibility testing machine, which belongs to the technical field of film structure physical testing analysis, and particularly provides a building film structure extensibility testing machine, which comprises a frame-shaped base, wherein two transverse edges of the frame-shaped base are respectively provided with transverse edge guide rails, two vertical edges of the frame-shaped base are respectively provided with vertical edge guide rails, each transverse edge guide rail is provided with an inner clamping beam and an outer clamping beam along the transverse edge direction, each vertical edge guide rail is provided with an inner clamping vertical beam and an outer clamping vertical beam along the vertical edge direction, four corners of the frame-shaped base are respectively provided with an inclined guide rail, the inclined guide rails are connected with vertex angles which are abutted against the inner clamping beams and the inner clamping vertical beams in a sliding manner, one side of the vertex angle towards the center of the frame-shaped base is provided with a joint opening, the center of the frame-shaped base is provided with a jacking rod, the top of the jacking rod is respectively connected to the inclined jacking rod at the joint opening around, and an upper jacking piece is arranged above the jacking rod.
Description
Technical Field
The invention relates to the technical field of physical test analysis of a membrane structure, in particular to a building membrane structure extensibility testing machine.
Background
The membrane structure is generally formed by natural tension formed by membrane materials, steel ropes and struts, and is a very natural structure, the membrane materials have light weight and high strength, the strength of the building membrane materials is 250 to 300 times that of common glass, 20 to 30 times that of an acrylic plate and twice that of tempered glass. The support column has the advantages that the risk of fracture is almost avoided, the stability of the whole structure can be ensured by combining high-strength steel ropes, and the use of the beam column can be reduced particularly when the support column is applied to a large-span building. The space inside the building is ensured, the effective use area is increased, and the building space is flexibly utilized.
The film structure needs to be subjected to a rigorous physical test analysis, i.e. testing for extensibility in all directions, before use. However, conventional testers often test their ductility by stretching in two directions at a time, and finally determine their ductility by testing multiple tests, stretching in different directions. However, it is known that the tensile forces to which the film structure is subjected in architectural applications are not in only two directions, so that a single test that stretches in only two directions does not result in accurate test results, which tend to overestimate the extensibility of the film structure. This also results in the membrane structure used in construction which may present a safety hazard.
Disclosure of Invention
The invention aims to solve the technical problem of accurately testing the ductility of a building membrane structure and provides a ductility tester for the building membrane structure.
The invention has the technical scheme that the building membrane structure extensibility testing machine comprises a frame-shaped base, wherein two transverse edges of the frame-shaped base are respectively provided with a transverse edge guide rail, two vertical edges of the frame-shaped base are respectively provided with a vertical edge guide rail, an inner clamping beam and an outer clamping beam which are respectively connected to the transverse edge guide rail along the transverse edge direction are arranged on the transverse edge guide rail, an inner clamping vertical beam and an outer clamping vertical beam which are respectively arranged along the vertical edge direction are arranged on the vertical edge guide rail, four corners of the frame-shaped base are respectively provided with a diagonal guide rail, the diagonal guide rails are slidably connected with a vertex angle which is in contact with the inner clamping beam and the inner clamping vertical beam, one side of the vertex angle facing the center of the frame-shaped base is provided with a joint opening, the center of the frame-shaped base is provided with a jacking rod, the top of the jacking rod is respectively connected to the joint opening, an upper jacking piece is arranged above the jacking device, a transverse opening is respectively arranged between the inner clamping beam and the outer clamping beam, a transverse opening is respectively arranged between the inner clamping vertical beam and the outer clamping beam, a transverse opening is respectively arranged between the inner clamping beam and the outer clamping beam, a transverse opening is respectively arranged between the two transverse opening, a transverse opening is respectively arranged between the two vertical opening, and the vertical opening is respectively arranged between the two transverse opening, and the vertical opening is respectively arranged between the vertical opening, and the vertical opening is arranged between the vertical opening and the vertical opening, and the transverse opening is respectively, and the transverse opening is respectively arranged, and the transverse opening, and the vertical opening is respectively, and the vertical opening and the device, the second counterweight piece is connected between the first vertical transverse moving ports opposite to the two vertical sides in a sliding manner, and the third counterweight piece is connected between the second vertical transverse moving ports opposite to the two vertical sides in a sliding manner.
As one embodiment, the oblique guide rail is rotatably connected to four corners of the frame-shaped base and is located between the transverse side guide rail and the vertical side guide rail.
As one embodiment, the inclined ejector rod is connected with the joint opening through a universal joint at the end part, the inclined ejector rod tends to be horizontal along with the lifting of the lifting rod, so that the vertex angles around synchronously move outwards along the inclined guide rail to lift the inner clamping cross beam and the inner clamping vertical beam, and the upper ejector piece is lifted along with the lifting of the lifting rod.
As an implementation mode, the locking device comprises a locking plate fixed on the inner clamping cross beam or the inner clamping vertical beam, a moving groove for the outer clamping cross beam or the outer clamping vertical beam to transversely move and be close to the inner clamping cross beam or the inner clamping vertical beam is formed in the locking plate, and a rotating handle for driving the outer clamping cross beam or the outer clamping vertical beam to transversely move along the moving groove is rotationally connected to the locking plate.
As one embodiment, the second counterweight member comprises a first plugboard inserted into the first vertical transverse moving opening, and further comprises a first connecting board penetrating from the bottoms of the two outer clamping vertical beams and having a length greater than the distance between the two outer clamping vertical beams, and a first counterweight is connected between the first plugboard and the first connecting board.
As one embodiment, the third counterweight member comprises a second plugboard inserted into the second vertical transverse moving opening, and further comprises a second connecting board penetrating from the bottoms of the two outer clamping vertical beams and having a length greater than the distance between the two outer clamping vertical beams, and a second counterweight is connected between the second plugboard and the second connecting board.
As an implementation mode, a working cylinder is arranged at the center of the frame-shaped base, a bearing seat is erected in the working cylinder through a plurality of supporting legs, a rotary driving piece is connected to the bearing seat in a rotating mode, the jacking rod is arranged in the rotary driving piece and driven by rotation of the rotary driving piece to lift, a through hole is formed in one side of the working cylinder, an electric rotating wheel is arranged on one side of the frame-shaped base, and the electric rotating wheel is connected with the rotary driving piece through a transmission belt penetrating through the through hole in a transmission mode.
As an implementation mode, the upper end of the working cylinder is provided with four positioning ports, and the inclined ejector rod penetrates through the positioning ports and then is connected to the top angle.
As one implementation mode, the two transverse edge guide rails are connected to the vertical edge guide rail far away from the center of the frame-shaped base, a plurality of reinforcing pieces which are uniformly distributed are arranged on the vertical edge guide rail, the vertical edge guide rail is welded to the two vertical edges of the frame-shaped base, and the transverse edge guide rail is welded to the two transverse edges of the frame-shaped base.
As an embodiment, the vertical edge guide rail is welded to two vertical edges of the frame-shaped base through welding tabs.
Compared with the prior art, the invention has the beneficial effect that the inner clamping cross beam and the inner clamping vertical beam which are propped against the vertex angle are used as the inner clamping parts during test operation. The outer clamping cross beam and the outer clamping vertical beam corresponding to the outer clamping cross beam are used as the clamping parts on the outer side. Because a pair of elements capable of executing clamping are distributed on the transverse sides and the vertical sides of the frame-shaped base, after the building membrane structure is clamped through the inner clamping cross beam, the outer clamping cross beam, the inner clamping vertical beam and the outer clamping vertical beam, the membrane structure can be primarily fixed in four directions, then the jacking rod is enabled to jack upwards through control, and the four inclined ejector rods are connected at the joint openings of the top of the jacking rod and the top angle. In the operation process, the inclined jacking rod is always inclined, and only tends to be horizontal along with the jacking of the jacking rod. And along with the trend level of jacking rod, can outwards push up the apex angle at four corners to make the interior clamp crossbeam of four directions and outer clamp crossbeam or interior clamp vertical beam and outer clamp vertical beam outwards remove, the membrane structure is originally through interior clamp crossbeam and outer clamp crossbeam, interior clamp vertical beam and outer clamp vertical beam clamp, along with this time outwards remove, can realize tensioning in four directions. And simultaneously, the upper top piece is lifted along with the lifting of the lifting rod, and the lifting position is opposite to the central position of the film structure, so that the film structure generates upward pulling force at each point in four directions along with the lifting of the upper top piece. And each point in the four directions is provided with a first spring tension meter or a second spring tension meter, the number of the first spring tension meter and the second spring tension meter is in one-to-one correspondence with the number of the transverse side guide rail and the vertical side guide rail, and the first spring tension meter or the second spring tension meter at each point generates a tension related reading along with the top of the upper top piece. The tension related readings may be different from place to place for a number of reasons. Since the tension related readings generated by the first or second spring tension meters can be made to be the same throughout by adjusting the first, second, and third weight members. The membrane structure was then tested for the ultimate tensile force achievable under continued lifting of the lifting rod. Compared with the traditional testing mode, the building film structure extensibility testing machine can obtain more accurate testing results.
Drawings
FIG. 1 is a first schematic diagram of a building membrane structure extensibility tester according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second architecture of a building membrane structure extensibility tester according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of the architectural membrane structure extensibility tester provided in FIG. 1;
FIG. 4 is a partial cross-sectional view of a architectural membrane structure extensibility testing machine provided by an embodiment of the present invention;
fig. 5 is an enlarged view of a portion of the architectural membrane structure extensibility tester provided in fig. 4.
In the figure: 1. a frame-shaped base; 2. a lateral edge guide rail; 3. a vertical edge guide rail; 4. an inner clamping beam; 5. an outer clamping beam; 6. an inner clamping vertical beam; 7. an outer clamping vertical beam; 8. an inclined guide rail; 9. a top angle; 10. a joint opening; 11. a lifting rod; 12. an inclined ejector rod; 13. an upper top piece; 14. a locking device; 15. a first spring tension meter; 16. a second spring tension meter; 17. a transverse sliding opening; 18. a first weight member; 19. a first vertical traversing port; 20. a second vertical traversing port; 21. a second weight member; 22. a third weight member; 23. a lock plate; 24. shifting the groove; 25. a rotary handle; 26. a first plugboard; 27. a first connecting plate; 28. a first balancing weight; 29. a second plugboard; 30. a second connecting plate; 31. a second balancing weight; 32. a working cylinder; 33. a support leg; 34. a bearing seat; 35. a rotary driving member; 36. a via hole; 37. an electric wheel; 38. a transmission belt; 39. a positioning port; 40. a reinforcing member; 41. and (5) welding the sheet.
Detailed Description
The foregoing and other embodiments and advantages of the invention will be apparent from the following, more complete, description of the invention, taken in conjunction with the accompanying drawings. It will be apparent that the described embodiments are merely some, but not all, embodiments of the invention.
In one embodiment, as shown in FIG. 1.
The building film structure extensibility testing machine provided by the embodiment comprises a frame-shaped base 1, wherein transverse side guide rails 2 are respectively arranged on two transverse sides of the frame-shaped base 1, vertical side guide rails 3 are respectively arranged on two vertical sides of the frame-shaped base 1, an inner clamping cross beam 4 and an outer clamping cross beam 5 along the transverse side direction are arranged on the transverse side guide rails 2, an inner clamping vertical beam 6 and an outer clamping vertical beam 7 along the vertical side direction are arranged on the vertical side guide rails 3, inclined guide rails 8 are respectively arranged at four corners of the frame-shaped base 1, apex angles 9 which are in contact with the inner sides of the inner clamping cross beam 4 and the inner clamping vertical beam 6 are slidingly connected on the inclined guide rails 8, a joint opening 10 is arranged on one side of the apex angle 9 towards the center of the frame-shaped base 1, a jacking rod 11 is arranged at the center of the frame-shaped base 1, inclined jacking rods 12 which are respectively connected to the joint openings 10 at four sides are arranged at the top of the jacking rods 11, an upper jacking piece 13 is arranged above the jacking rods 11, locking devices 14 for clamping the inner clamping cross beam 4 and the outer clamping cross beam 5 and the inner clamping vertical beam 6 and the outer clamping cross beam 7 are respectively arranged between the inner clamping cross beam 4 and the outer clamping cross beam 5 and between the inner clamping vertical beam 6 and the outer clamping vertical beam 7, a first spring tension gauge 15 is arranged between the inner clamping cross beam 4, the outer clamping cross beam 5 and the transverse edge guide rail 2, a second spring tension gauge 16 is arranged between the inner clamping vertical beam 6, the outer clamping vertical beam 7 and the transverse edge guide rail 3, the transverse edge guide rail 2 on one transverse edge is arranged at two positions, the transverse edge guide rail 5 on the outer clamping cross beam 5 is provided with a transverse edge opening 17 between the two transverse edge guide rails 2, a first weight piece 18 is arranged in the transverse edge opening 17, the transverse edge guide rail 3 on one vertical edge is arranged at three positions, the outer clamping vertical beam 7 is provided with a first vertical transverse edge opening 19 and a second vertical transverse edge opening 20 which are respectively arranged between the two vertical edge guide rails 3, a second weight piece 21 is connected between the opposite first vertical transverse edge openings 19 on the two vertical edges, a third weight member 22 is slidably connected between the two opposite vertical side edges of the second vertically movable opening 20.
In this embodiment, unlike a conventional tester, one test stretches in only two directions. During the test operation, the inner clamping beams 4 and the inner clamping vertical beams 6, which are abutted against the top corners 9, are used as the inner clamping parts. The outer clamping cross beam 5 and the outer clamping vertical beam 7 corresponding to the outer clamping cross beam are used as the clamping parts on the outer side. Because a pair of elements capable of executing clamping are distributed on the transverse sides and the vertical sides of the frame-shaped base 1, after the building membrane structure is clamped through the inner clamping cross beam 4, the outer clamping cross beam 5, the inner clamping vertical beam 6 and the outer clamping vertical beam 7, the membrane structure can be primarily fixed in four directions, and the membrane structure is actually a membrane with better strength. Then the jacking rod 11 is controlled to jack upwards, and four inclined jacking rods 12 are connected to the top of the jacking rod 11 and the joint opening 10 of the top angle 9. During operation, the inclined jacking rod 12 is always inclined, but tends to be horizontal along with the jacking of the jacking rod 11. And along with the trend of the jacking rod 11, the vertex angles 9 of four corners can be outwards jacked, so that the inner clamping cross beam 4 and the outer clamping cross beam 5 or the inner clamping vertical beam 6 and the outer clamping vertical beam 7 in four directions outwards move, the membrane structure is clamped through the inner clamping cross beam 4 and the outer clamping cross beam 5, the inner clamping vertical beam 6 and the outer clamping vertical beam 7, and along with the outwards movement of the membrane structure, the membrane structure can be tensioned in four directions. At the same time, the upper top piece 13 is lifted up along with the lifting of the lifting rod 11, and the lifting position is opposite to the central position of the film structure, so that upward pulling force is generated at each point of the film structure in four directions along with the lifting of the upper top piece 13. Each point in the four directions is provided with a first spring tension meter 15 or a second spring tension meter 16, the number of the first spring tension meter 15 and the second spring tension meter 16 corresponds to the number of the transverse side guide rail 2 and the vertical side guide rail 3 one by one, and the first spring tension meter 15 or the second spring tension meter 16 at each point generates a tension related reading along with the jacking of the upper top piece 13. The tension related readings may be different from place to place for a number of reasons. Since the readings related to the tension generated by the first spring tension meter 15 or the second spring tension meter 16 can be made to be the same throughout by adjusting the first weight member 18, the second weight member 21, and the third weight member 22. The membrane structure was thereafter tested for the ultimate tensile force achievable under continued lifting of the lifting rod 11. It should be noted that when the extensibility test is performed, the tensile test should be performed synchronously, and the stress of each place should be ensured to be uniform, which cannot be achieved by the conventional testing machine and testing method. Compared with the traditional testing mode, the building film structure extensibility testing machine provided by the embodiment can obtain more accurate testing results.
In one embodiment, as shown in FIG. 2.
The building film structure extensibility testing machine provided by the embodiment is characterized in that the inclined guide rails 8 are rotatably connected to four corners of the frame-shaped base 1 and are positioned between the transverse side guide rails 2 and the vertical side guide rails 3.
In the present embodiment, by providing the diagonal rail 8 to be rotatable, the orientation of the diagonal rail 8 can be actively fed back and adjusted according to the actual tension of the film structure during the outward pushing of the apex angle 9 along the diagonal rail 8. So that the membrane structure can be spread more evenly and tensioned more evenly when the apex angle 9 is pushed outwards.
In one embodiment, as shown in FIG. 2.
According to the building film structure extensibility testing machine provided by the embodiment, the inclined ejector rod 12 is connected with the joint opening 10 through the universal joint at the end part, the inclined ejector rod 12 tends to be horizontal along with the lifting of the lifting rod 11, so that the four vertex angles 9 synchronously move outwards along the inclined guide rail 8 to lift the inner clamping cross beam 4 and the inner clamping vertical beam 6, and the upper ejector piece 13 is lifted along with the lifting of the lifting rod 11.
In this embodiment, a universal joint is disposed at the end of the inclined ejector rod 12, and the universal joint is connected with the joint opening 10 in a matching manner, so that the inclined ejector rod 12 can naturally tend to be horizontal along with the lifting of the lifting rod 11, and the inclined guide rail 8 which can rotate is matched with the inclined ejector rod, so that the film structure is uniformly tensioned along with the lifting of the lifting rod 11, and the tensioned film structure can be uniformly stressed along with the lifting of the position of the upper top piece 13.
In one embodiment, as shown in FIG. 2.
The locking device 14 of the building film structure extensibility testing machine provided by the embodiment comprises a locking plate 23 fixed on the inner clamping cross beam 4 or the inner clamping vertical beam 6, a moving groove 24 for the outer clamping cross beam 5 or the outer clamping vertical beam 7 to transversely move and be close to the inner clamping cross beam 4 or the inner clamping vertical beam 6 is formed in the locking plate 23, and a rotating handle 25 for driving the outer clamping cross beam 5 or the outer clamping vertical beam 7 to transversely move along the moving groove 24 is rotationally connected to the locking plate 23.
In this embodiment, the locking device 14 is used for clamping the inner clamping beam 4 and the outer clamping beam 5, and also used for clamping the inner clamping vertical beam 6 and the outer clamping vertical beam 7, and specifically the outer clamping beam 5 is driven to approach the inner clamping beam 4 by screwing the screw handle 25, so that the clamping is finally realized. The outer clamping vertical beams 7 can be driven to approach the inner clamping vertical beams 6 to finally realize clamping.
In one embodiment, as shown in fig. 3.
The building membrane structure extensibility testing machine provided by the embodiment, the second counterweight 21 comprises a first plugboard 26 inserted in the first vertical transverse moving opening 19, and further comprises a first connecting plate 27 penetrating through the bottoms of the two outer clamping vertical beams 7 and having a length larger than the distance between the two outer clamping vertical beams 7, and a first counterweight 28 is connected between the first plugboard 26 and the first connecting plate 27.
In this embodiment, the second weight member 21 is inserted into the first vertical transverse moving openings 19 at both sides through the first insertion plates 26 at both ends, and the length of the first connection plate 27 is greater than the distance between the two outer clamping vertical beams 7, so when the position of the second weight member 21 is adjusted, the adjustment can be achieved by obliquely placing the first connection plate 27, and the obliquely placed first connection plate 27 is that the adjusted first connection plate 27 is not parallel to the vertical side guide rails 3 at both sides thereof, so that the adjustment mode has more flexibility, and the readings related to the tensile forces generated by the second spring tension meters 16 at both sides tend to be close.
In one embodiment, as shown in fig. 3.
The third counterweight 22 of the building film structure extensibility testing machine provided by the embodiment comprises a second plugboard 29 inserted in the second vertical transverse moving opening 20, and further comprises a second connecting board 30 which passes through the bottoms of the two outer clamping vertical beams 7 and has a length longer than the distance between the two outer clamping vertical beams 7, wherein a second counterweight 31 is connected between the second plugboard 29 and the second connecting board 30.
In the present embodiment, the third weight member 22 is inserted into the second vertical sliding openings 20 at both sides through the second insertion plates 29 at both ends, and the length of the second connection plate 30 is longer than the distance between the two outer clamping vertical beams 7, so that the adjustment of the position of the third weight member 22 can be achieved by obliquely arranging the second connection plate 30, which is more flexible.
In one embodiment, as shown in fig. 5.
The building film structure extensibility test machine provided by the embodiment is characterized in that a working cylinder 32 is arranged at the center of a frame-shaped base 1, a bearing seat 34 is erected in the working cylinder 32 through a plurality of supporting legs 33, a rotary driving piece 35 is rotatably connected to the bearing seat 34, a jacking rod 11 is arranged in the rotary driving piece 35 and is driven by rotation of the rotary driving piece 35 to lift, a through hole 36 is formed in one side of the working cylinder 32, an electric rotating wheel 37 is arranged on one side of the frame-shaped base 1, and the electric rotating wheel 37 is connected with the rotary driving piece 35 in a transmission manner through a transmission belt 38 penetrating through the through hole 36.
In the present embodiment, the working cylinder 32 is disposed at the center of the frame-shaped base 1, and the rotary driving member 35 disposed in the working cylinder 32 is screwed with the lifting rod 11 as a carrier for mounting the lifting rod 11, so that the circumferential movement of the rotary driving member 35 can be converted into the linear movement of the lifting rod 11, and the rotary driving member 35 is driven by the external electric rotating wheel 37 via the transmission belt 38, thereby realizing the lifting control of the lifting rod 11.
In one embodiment, as shown in fig. 5.
In the building film structure extensibility testing machine provided by the embodiment, four positioning openings 39 are formed in the upper end of a working cylinder 32, and an inclined ejector rod 12 passes through the positioning openings 39 and is connected to the top angle 9.
In the present embodiment, the inclined ejector rod 12 can pass through the four positioning openings 39, and when the inclined ejector rod 12 tends to be horizontal, enough space is reserved.
In one embodiment, as shown in fig. 4.
According to the building film structure extensibility testing machine provided by the embodiment, two transverse edge guide rails 2 are connected to a vertical edge guide rail 3 far away from the center of a frame-shaped base 1, a plurality of evenly distributed reinforcing pieces 40 are arranged on the vertical edge guide rail 3, the vertical edge guide rail 3 is welded to two vertical edges of the frame-shaped base 1, and the transverse edge guide rails 2 are welded to two transverse edges of the frame-shaped base 1.
In the present embodiment, the horizontal side rail 2 and the vertical side rail 3 are connected to each other, so that the integrity is enhanced, the strength of the vertical side rail 3 can be enhanced by the reinforcing member 40, and the vertical side rail 3 is welded to both vertical sides of the frame-shaped base 1 by the welding tab 41.
The above-described embodiments are provided to further explain the objects, technical solutions, and advantageous effects of the present invention in detail. It should be understood that the foregoing is only illustrative of the present invention and is not intended to limit the scope of the present invention. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. The utility model provides a building membrane structure extensibility test machine, its characterized in that, includes frame shape base (1), two horizontal limit of frame shape base (1) respectively are equipped with horizontal limit guide rail (2), two perpendicular limits of frame shape base (1) respectively are equipped with perpendicular limit guide rail (3), be equipped with on horizontal limit guide rail (2) along interior clamp crossbeam (4) and the outer clamp crossbeam (5) of horizontal limit direction, be equipped with on perpendicular limit guide rail (3) along interior clamp vertical beam (6) and outer clamp vertical beam (7) of perpendicular limit direction, the four corners of frame shape base (1) respectively are equipped with oblique guide rail (8), sliding connection has conflict on oblique guide rail (8) interior clamp crossbeam (4) with interior clamp vertical beam (6) inboard apex angle (9), apex angle (9) orientation one side in frame shape base (1) center is equipped with joint mouth (10), frame shape base (1) center department is equipped with jacking rod (11), jacking rod (11) top is equipped with and connects to four joints respectively and presss from both sides on top rod (10) top rod (12), top rod (13) are equipped with top between top rod (4) and top rod (13) The inner clamping vertical beam (6) and the outer clamping vertical beam (7) are respectively provided with a locking device (14) which enables the inner clamping beam (4) and the outer clamping beam (5) to be clamped, the inner clamping beam (6) and the outer clamping vertical beam (7) are respectively clamped, a first spring tension meter (15) is arranged between the inner clamping beam (4), the outer clamping beam (5) and the transverse edge guide rail (2), a second spring tension meter (16) is arranged between the inner clamping vertical beam (6), the outer clamping beam (7) and the transverse edge guide rail (3), the transverse edge guide rail (2) on one transverse edge is arranged at two positions, a transverse sliding opening (17) between the two transverse edge guide rails (2) is arranged on the outer clamping beam (5), a first counterweight (18) is arranged in the transverse edge, the vertical edge guide rail (3) on one position is arranged at three positions, a second transverse sliding opening (19) is arranged on the outer clamping beam (7) and is arranged between the two vertical sliding openings (19) on the two vertical edge guide rails (19), a third counterweight (22) is connected between the second vertical transverse moving ports (20) opposite to the two vertical edges in a sliding way.
2. The machine for testing the extensibility of a building film structure according to claim 1, wherein the oblique guide rail (8) is rotatably connected to four corners of the frame-shaped base (1) and is positioned between the transverse side guide rail (2) and the vertical side guide rail (3).
3. The building membrane structure extensibility testing machine according to claim 2, wherein the inclined ejector rod (12) is connected with the joint opening (10) through a universal joint at the end part, the inclined ejector rod (12) tends to be horizontal along with the lifting of the lifting rod (11), so that the vertex angle (9) around moves outwards synchronously along the inclined guide rail (8) to lift the inner clamping cross beam (4) and the inner clamping vertical beam (6), and the upper ejector piece (13) is lifted along with the lifting of the lifting rod (11).
4. The building film structure extensibility testing machine according to claim 1, wherein the locking device (14) comprises a locking plate (23) fixed on the inner clamping cross beam (4) or the inner clamping vertical beam (6), a moving groove (24) for the outer clamping cross beam (5) or the outer clamping vertical beam (7) to transversely move so as to be close to the inner clamping cross beam (4) or the inner clamping vertical beam (6) is formed in the locking plate (23), and a rotating handle (25) for driving the outer clamping cross beam (5) or the outer clamping vertical beam (7) to transversely move along the moving groove (24) is rotationally connected to the locking plate (23).
5. The building membrane structure extensibility testing machine according to claim 1, characterized in that the second counterweight (21) comprises a first insertion plate (26) inserted in the first vertical traversing opening (19), and further comprises a first connecting plate (27) penetrating from the bottoms of the two outer clamping vertical beams (7) and having a length greater than the distance between the two outer clamping vertical beams (7), wherein a first balancing weight (28) is connected between the first insertion plate (26) and the first connecting plate (27).
6. The building membrane structure extensibility testing machine according to claim 1, wherein said third weight member (22) comprises a second insertion plate (29) inserted in said second vertical traversing opening (20), and further comprises a second connection plate (30) penetrating from the bottoms of said outer clamping vertical beams (7) at two places and having a length longer than the distance between said outer clamping vertical beams (7) at two places, and a second balancing weight (31) is connected between said second insertion plate (29) and said second connection plate (30).
7. The building film structure extensibility testing machine according to claim 1, wherein a working cylinder (32) is arranged at the center of the frame-shaped base (1), a bearing seat (34) is erected in the working cylinder (32) through a plurality of supporting legs (33), a rotary driving piece (35) is rotatably connected to the bearing seat (34), a lifting rod (11) is arranged in the rotary driving piece (35) and is driven by rotation of the rotary driving piece (35) to lift, a through hole (36) is formed in one side of the working cylinder (32), an electric rotating wheel (37) is arranged on one side of the frame-shaped base (1), and the electric rotating wheel (37) is in transmission connection with the rotary driving piece (35) through a transmission belt (38) penetrating through the through hole (36).
8. The building membrane structure extensibility testing machine according to claim 7, wherein four positioning openings (39) are formed in the upper end of the working cylinder (32), and the inclined ejector rod (12) passes through the positioning openings (39) and then is connected to the top angle (9).
9. The building film structure extensibility testing machine according to claim 1, wherein two transverse edge guide rails (2) are commonly connected to the vertical edge guide rail (3) far away from the center of the frame-shaped base (1), a plurality of evenly-distributed reinforcing pieces (40) are arranged on the vertical edge guide rail (3), the vertical edge guide rail (3) is welded on two vertical edges of the frame-shaped base (1), and the transverse edge guide rails (2) are welded on two transverse edges of the frame-shaped base (1).
10. The machine for testing the ductility of a building membrane structure according to claim 9, wherein the vertical edge guide rail (3) is welded on two vertical edges of the frame-shaped base (1) through welding tabs (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310043375.5A CN115791453B (en) | 2023-01-29 | 2023-01-29 | Building membrane structure extensibility test machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310043375.5A CN115791453B (en) | 2023-01-29 | 2023-01-29 | Building membrane structure extensibility test machine |
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| CN115791453A CN115791453A (en) | 2023-03-14 |
| CN115791453B true CN115791453B (en) | 2023-06-02 |
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| CN202310043375.5A Active CN115791453B (en) | 2023-01-29 | 2023-01-29 | Building membrane structure extensibility test machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2815658A (en) * | 1954-09-20 | 1957-12-10 | Jack J Press | Apparatus for testing fabric or the like |
| CN210604215U (en) * | 2019-05-29 | 2020-05-22 | 上海华喜膜结构工程有限公司 | Extension detection machine |
| CN111307621A (en) * | 2020-02-10 | 2020-06-19 | 中国矿业大学 | Flexible boundary tensioning pre-tightening device for membrane impact test and operation method |
| CN212641752U (en) * | 2020-05-22 | 2021-03-02 | 北京今盛杰膜结构科技有限公司 | Membrane structure's stretch-draw subassembly |
| CN112630029A (en) * | 2020-12-15 | 2021-04-09 | 陕西航天技术应用研究院有限公司 | Meshed fabric mechanical property testing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013158774A1 (en) * | 2012-04-17 | 2013-10-24 | Northeastern University | Equi-biaxial membrane stretcher |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2815658A (en) * | 1954-09-20 | 1957-12-10 | Jack J Press | Apparatus for testing fabric or the like |
| CN210604215U (en) * | 2019-05-29 | 2020-05-22 | 上海华喜膜结构工程有限公司 | Extension detection machine |
| CN111307621A (en) * | 2020-02-10 | 2020-06-19 | 中国矿业大学 | Flexible boundary tensioning pre-tightening device for membrane impact test and operation method |
| CN212641752U (en) * | 2020-05-22 | 2021-03-02 | 北京今盛杰膜结构科技有限公司 | Membrane structure's stretch-draw subassembly |
| CN112630029A (en) * | 2020-12-15 | 2021-04-09 | 陕西航天技术应用研究院有限公司 | Meshed fabric mechanical property testing device |
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| CN115791453A (en) | 2023-03-14 |
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