CN113073863B - Automatic adjusting system for building membrane structure tensioning and working method - Google Patents
Automatic adjusting system for building membrane structure tensioning and working method Download PDFInfo
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- CN113073863B CN113073863B CN202110209771.1A CN202110209771A CN113073863B CN 113073863 B CN113073863 B CN 113073863B CN 202110209771 A CN202110209771 A CN 202110209771A CN 113073863 B CN113073863 B CN 113073863B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
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Abstract
The invention provides an automatic tension adjusting system and a working method for a building membrane structure, wherein the automatic tension adjusting system comprises a rectangular frame, a membrane structure and an electric adjusting screw, wherein the rectangular frame is formed by sequentially fixing four square steel pipes end to end, the membrane structure is arranged on the rectangular frame and comprises: second rigid links spaced apart on a pair of adjacent edge portions of the membrane structure; one end of the screw is rotatably connected with the second rigid connecting rod, and the screw moves along the axial direction to push and pull the second rigid connecting rod; and the motor is connected with the other end of the screw rod and drives the screw rod to rotate positively and negatively, and the motor is fixed on the rectangular frame. The invention has an adjusting mechanism, and can change the tensioning force according to the stress change of the membrane structure, thereby maintaining the optimal tensioning state of the membrane surface.
Description
Technical Field
The invention particularly relates to an automatic tensioning adjusting system for a building membrane structure, and further particularly relates to a working method of the automatic tensioning adjusting system for the building membrane structure.
Background
With the appearance of novel film materials such as ETFE and the like in recent years, the traditional structural design means and construction process are not enough to deal with the complex-shaped ETFE steel-cable film structure, and the structural design means and construction process of the complex-shaped ETFE steel-cable film structure are needed to be improved, so that the technical bottleneck of design and construction of the complex-shaped ETFE steel-cable film structure is solved. All membrane structures are mostly in the form of small-area membranes and simple curved surfaces or air pillow type forms at present, and stress relaxation caused by creep is counteracted or slowed down by reducing membrane material stress or maintaining structure tension by an inflation mechanism. In China, stress relaxation or tension damage caused by creep is not counteracted or slowed down aiming at a large-area single-layer membrane structure.
Comparing files: chinese patent publication CN109235651A, published japanese patent No. 20190118, discloses a large-span rigid gable space grid-cable membrane structure system, which mainly comprises a rigid gable space grid, a cable arch truss, and a cable membrane structure having both vertical bearing and building enclosure functions. The main characteristics are that the rigid gable space grid bears longitudinal wind load, the cable arch truss bears transverse horizontal load, and the cable membrane structure bears roof vertical load and maintenance covering.
But the method of over-tensioning to 105% of the target cable force was used in the reference to offset the loss of pre-stress. The film structure is affected by normal temperature creep and temperature performance, stress concentration and plastic deformation are easy to occur at the edge of the large-area film structure under the action of wind and snow loads, or the shape size is changed or the large deformation is caused due to temperature change, so that the tensile force cannot be changed according to the change of the stress in real time by a comparison file. And because the actual place for delivering and operating the building using the membrane structure has limited maintenance space, great difficulty is brought to later adjustment and maintenance.
Therefore, an automatic tensioning adjusting system and method for a building membrane structure are needed to solve the problem that the membrane structure in the prior art cannot be automatically tensioned or loosened according to actual conditions on site.
Disclosure of Invention
The invention provides an automatic tensioning adjusting system and method for a building membrane structure, which are provided with an adjusting mechanism and can change tensioning force according to the stress change of the membrane structure, so that the optimal tensioning state of the membrane surface is maintained.
The utility model provides a building membrane structure rises automatic regulating system that rises, includes the rectangle frame, and it is formed by four square steel pipes end to end are fixed in proper order, and the membrane structure, it sets up on the rectangle frame, including electric adjusting screw, it includes:
second rigid links spaced apart on a pair of adjacent edge portions of the membrane structure;
one end of the screw is rotatably connected with the second rigid connecting rod, and the screw moves along the axial direction to push and pull the second rigid connecting rod;
and the motor is connected with the other end of the screw rod and drives the screw rod to rotate positively and negatively, and the motor is fixed on the rectangular frame.
By adopting the structure, one side and the adjacent side of the membrane structure are fixed with the rectangular frame through the plurality of electric adjusting screws, the membrane surface of the membrane structure is divided into a plurality of transverse and longitudinal strip-shaped areas by the plurality of electric adjusting screws, when the membrane surface of the membrane structure is loosened or excessively tightened, the rotation of the motor can be controlled in a wireless mode or a wired mode, the motor drives the screw connected with the motor to rotate, and the screw pushes or pulls the strip-shaped area of the membrane surface of the membrane structure through the rotation, so that the area is tightened or loosened to keep straight without damage; the entire membrane structure can be kept straight by adjusting all the electric adjusting screws. And the connection of the motor and the screw can be switched, and the screw can be manually controlled to adjust the membrane structure.
The tension degree of the membrane structure can be adjusted according to the self condition of the membrane structure, so that the membrane structure is adaptive to stress change caused by wind and snow load or temperature change. Thereby the whole building membrane structure is always kept in an optimal decorative effect state.
Further, still include the foil gage, it pastes and sets up on the membrane structure and be close to the second rigid link, the quantity of foil gage matches with the quantity of second rigid link.
Furthermore, a screw sleeve is arranged on the second rigid connecting rod, one end of the screw is clamped with the screw sleeve, and the screw is rotatably connected with the screw sleeve.
Further, the second rigid connecting rod is provided with a second clamp, and the second clamp clamps and fixes the edge part of the membrane structure.
By adopting the structure, the screw rod can be more conveniently pushed and pulled through rotating the second rigid connecting rod, and the structure is simple and the stability is good. Adopt the fixed membrane structure of second anchor clamps centre gripping, can be in the installation fixed membrane structure swiftly more, increase work efficiency. Simple structure, the operation of being convenient for prevents that the face effect that brings because of the misoperation in the work progress is not enough or the face damages.
Further, the strain gauge transmits a sensing signal of the stress of the membrane structure through wired transmission or wireless transmission.
The device further comprises a control computer, wherein the control computer receives induction signals of the strain gauge through wired transmission or wireless transmission and controls the motor according to the induction signals.
By adopting the structure, the strain gauge is attached to the membrane surface of the membrane structure and can read the stress value on the membrane surface; and after receiving the signal of the stress value, the control computer controls the motor to rotate according to the signal, and finally adjusts the tension degree of the membrane surface of the membrane structure.
Further, the device also comprises at least one first rigid connecting rod which is provided with a first clamp, wherein the first clamp fixes one edge and the adjacent edge of the membrane structure.
Furthermore, the steel tube bending device further comprises a spring bolt, wherein one end of the spring bolt is fixedly provided with the first rigid connecting rod, and the other end of the spring bolt is fixedly arranged on the square steel tube.
By adopting the structure, the membrane structure is fixed on the rectangular frame through the first rigid connecting rod and the spring bolt on two sides without installing the electric adjusting screw, and the spring bolt enables the membrane structure to be fixed more stably and not easily loose, so that the stability is improved.
A working method of the automatic tension adjusting system for the building membrane structure comprises the following steps:
step 5, adjusting the structure of the tensioned membrane manually or by using a control computer according to the actual situation on site to enable the structure to be straight;
step 6, then connecting the motor and the strain gauge into a control computer, and setting the stress numerical range of the strain gauge; when the stress value detected by the strain gauge is smaller than or larger than the stress value range, the control computer controls the motor to rotate forwards or backwards according to the sensing signal of the strain gauge so as to drive the screw to tighten or loosen the membrane structure.
Further, in step 5, the membrane structure is sequentially stretched from the middle portion of the membrane surface of the membrane structure to both sides, and then the next side is adjusted in the same manner.
By adopting the structure, when the film is installed for the first time, the strip-shaped areas corresponding to the film surface of the film structure can be tensioned through wireless control without generating wrinkles, the tensioning adjustment is sequentially carried out on the electric adjusting screws corresponding to all the strip-shaped areas from the middle part of the film surface to two sides according to the mode until the film surface in one direction is adjusted to be in a flat and tight state, and then the electric adjusting screws corresponding to the strip-shaped areas of the film surface in the other direction are adjusted according to the mode. After the adjustment is finished, the whole film surface is tight and flat.
After the installation is finished, reading the stress value of the strain gauge, inputting the value into computer coordination control software, setting the stress value range of the strain gauge, in the subsequent operation, when the stress value of the strain gauge exceeds the set range due to the expansion or contraction of the film surface, sending an instruction by a computer to start an electric adjusting bolt to start working, and when the stress value of the strain gauge is smaller than the minimum value of the set range, operating an electric adjusting screw rod to tension the film surface; when the stress value of the strain gauge is larger than the maximum value of the set range, the screw is electrically adjusted to operate, and the film surface is loosened; when the stress of the corresponding area of the strain gauge reaches a set value, the work is stopped, and the film surface is maintained in the optimal tension state.
The invention has the following beneficial effects:
1. the tension degree of the membrane structure can be adjusted according to the self condition of the membrane structure, so that the membrane structure is suitable for stress change caused by wind and snow load or temperature change. Thereby the whole building membrane structure is always kept in an optimal decorative effect state.
2. The invention improves the applicability of the structural member on the premise of giving full play to the material performance, has simple structure and convenient operation, and prevents the insufficient film surface effect or the damage of the film surface caused by improper operation in the construction process.
3. The invention has stable structure and is not easy to loosen.
4. The invention can automatically adjust the membrane surface of the membrane structure, avoids the subsequent maintenance problem and prevents the membrane surface of the membrane structure from generating folds or expansion damage to influence the use of the whole building.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a profiled film structure in example 2 of the present invention;
reference numerals:
1. a rectangular frame; 11. a square steel pipe; 12. a spring bolt; 2. a first rigid link; 21. a first clamp; 3. a membrane structure; 4. an electric adjusting screw; 41. an electric motor; 42. a screw; 43. a second rigid link; 44. a second clamp; 45. a screw sleeve; 46. a strain gauge.
Detailed Description
It should be apparent that the embodiments described below are some, but not all embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically indicated and limited.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1, a building membrane structure rises automatic regulating system that rises, including rectangular frame 1, it is formed by four square steel pipes 11 end to end are fixed in proper order, and membrane structure 3, it sets up on rectangular frame 1, including electric adjusting screw 4, and it includes:
second rigid links 43 spaced apart on a pair of adjacent edge portions of the membrane structure 3;
a screw rod 42, one end of which is rotatably connected with the second rigid connecting rod 43, wherein the screw rod 42 moves along the axial direction thereof to push and pull the second rigid connecting rod 43;
and the motor 41 is connected with the other end of the screw rod 42 and drives the screw rod 42 to rotate positively and negatively, and the motor 41 is fixed on the rectangular frame 1.
By adopting the structure, one side and the adjacent side of the membrane structure 3 are fixed with the rectangular frame 1 through the plurality of electric adjusting screw rods 4, the membrane surface of the membrane structure 3 is divided into a plurality of transverse and longitudinal strip-shaped areas by the plurality of electric adjusting screw rods 4, when the membrane surface of the membrane structure 3 is loosened or excessively tightened, the rotation of the motor 41 can be controlled in a wireless mode or a wired mode, the motor 41 drives the screw rod 42 connected with the motor to rotate, and the screw rod 42 pushes or pulls the strip-shaped area of the membrane surface of the membrane structure 3 through rotation, so that the area is tightened or loosened to keep straight without being damaged; the entire membrane structure 3 can be kept straight by adjusting all the motorized adjustment screws 4. And the connection of the motor 41 and the screw 42 can be switched, enabling the screw 42 to be manually controlled to adjust the membrane structure 3.
Such a structure can adjust its tight degree of tightening according to the condition of membrane structure 3 self, makes membrane structure 3 adapt to the stress change that leads to because wind, snow load effect or temperature variation. So that the whole building film structure 3 is always kept in an optimum decorative effect state.
And strain gauges 46 which are adhered to the membrane structure 3 and are adjacent to the second rigid connecting rods 43, wherein the number of the strain gauges 46 is matched with that of the second rigid connecting rods 43.
The second rigid connecting rod 43 is provided with a screw sleeve 45, one end of the screw 42 is clamped with the screw sleeve 45, and the screw 42 is rotatably connected with the screw sleeve 45.
The second rigid link 43 is provided with a second clamp 44, the second clamp 44 clamping the edge portion of the fixed film structure 3.
With such a structure, the second rigid link 43 can be pushed and pulled by the screw rod 42 more easily by rotation, and the structure is simple and stable. The second clamp 44 is adopted to clamp and fix the membrane structure 3, so that the membrane structure 3 can be fixed more quickly during installation, and the working efficiency is increased. Simple structure, the operation of being convenient for prevents that the face effect that brings because of the misoperation in the work progress is not enough or the face damages.
The strain gauge 46 transmits a signal for sensing the stress of the film structure 3 through wired transmission or wireless transmission.
And a control computer which receives the induction signal of the strain gauge 46 through wired transmission or wireless transmission and controls the motor 41 according to the induction signal.
With such a structure, the strain gauge 46 is attached to the film surface of the film structure 3, and can read the stress value on the film surface; and after receiving the signal of the stress value, the control computer controls the motor 41 to rotate according to the signal, and finally adjusts the tensioning degree of the membrane surface of the membrane structure 3.
Further comprising at least one first rigid link 2 provided with a first clamp 21, said first clamp 21 fixing one edge of the membrane structure 3 and its adjacent edge.
The steel tube bending device is characterized by further comprising a spring bolt 12, wherein one end of the spring bolt 12 is fixed with the first rigid connecting rod 2, and the other end of the spring bolt 12 is fixed on the square steel tube 11.
By adopting the structure, the membrane structure 3 is fixed on the rectangular frame 1 through the first rigid connecting rod 2 and the spring bolt 12 on two sides without installing the electric adjusting screw rod 4, and the spring bolt 12 enables the membrane structure 3 to be fixed more stably and not easily loose, so that the stability is improved.
A working method of the automatic tension adjusting system for the building membrane structure comprises the following steps:
step 5, adjusting the tightening film structure 3 manually or by using a control computer according to the actual situation on site to make the tightening film structure straight;
step 6, then connecting the motor 41 and the strain gauge 46 into a control computer, and setting the stress numerical range of the strain gauge 46; when the stress value detected by the strain gauge 46 is smaller or larger than the stress value range, the control computer controls the motor 41 to rotate forward or backward according to the sensing signal of the strain gauge 46, so as to drive the screw rod 42 to tighten or loosen the membrane structure 3.
In step 5, the membrane structure 3 is tightened from the middle of the membrane surface of the membrane structure 3 to both sides in sequence, and then the next side is adjusted in the same way.
By adopting the structure, when the film structure is installed for the first time, the strip-shaped areas corresponding to the film surface of the film structure 3 can be tensioned through wireless control without generating wrinkles, the electric adjusting screws 4 corresponding to all the strip-shaped areas are sequentially tensioned and adjusted from the middle part of the film surface to two sides according to the mode until the film surface in one direction is adjusted to be in a straight and tight state, and then the electric adjusting screws 4 corresponding to the strip-shaped areas of the film surface in the other direction are adjusted according to the mode. After the adjustment is finished, the whole film surface is tight and flat.
After the installation is finished, reading the stress value of the strain gauge 46, inputting the value into computer coordination control software, setting the stress value range of the strain gauge 46, in the subsequent operation, when the stress value of the strain gauge 46 exceeds the set range due to the expansion or contraction of the film surface, sending a command by a computer to start an electric adjusting bolt to start working, and when the stress value of the strain gauge 46 is smaller than the minimum value of the set range, operating the electric adjusting screw rod 4 to tension the film surface; when the stress value of the strain gauge 46 is larger than the maximum value of the set range, the screw rod 4 is electrically adjusted to operate, and the film surface is loosened; when the stress of the corresponding area of the strain gauge 46 reaches a set value, the operation is stopped, so that the film surface is maintained in an optimal tension state.
The invention has the following beneficial effects:
1. the invention can adjust the tension degree of the membrane structure 3 according to the self condition of the membrane structure, so that the membrane structure 3 is suitable for the stress change caused by wind and snow load action or temperature change. So that the whole building film structure 3 is always kept in an optimum decorative effect state.
2. The invention improves the applicability of the structural member on the premise of giving full play to the material performance, has simple structure and convenient operation, and prevents the insufficient film surface effect or the damage of the film surface caused by improper operation in the construction process.
3. The invention has stable structure and is not easy to loosen.
4. The invention can automatically adjust the membrane surface of the membrane structure 3, avoid the subsequent maintenance problem and prevent the membrane surface of the membrane structure 3 from generating folds or expansion damage to influence the use of the whole building.
Example 2
The present embodiment is different from embodiment 1 in that the membrane structure 3 in the present embodiment is a profile structure in which the screw rod 42 pushes and pulls the second rigid link 43 in its axial direction to tighten or loosen the membrane surface, the axial direction of the screw rod 42 depending on the length direction of the first clamp 21 opposite thereto. The tension direction of the strain gauge 46 is the same as the axial direction of the screw 42.
As shown in fig. 2, the membrane structure 3 of the present embodiment is an irregular and irregular structure, and there are first clamps 21 of a straight side and a circular arc shape, respectively, wherein:
when the first clamp 21 is a straight edge, the axial direction of the screw rod 42 is perpendicular to the length direction of the first clamp 21 opposite thereto.
When the film structure 3 is an arc-shaped structure, the first clamp 21 is an arc edge corresponding to the film structure 3; in this case, the axial direction of the opposing screw rod 42 is perpendicular to the tangential line of the circular arc frame of the first jig 21.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (2)
1. The utility model provides a building membrane structure rises and tightly automatic regulating system's operating method, building membrane structure rises and tightly automatic regulating system includes rectangular frame (1), and it is formed by four square steel pipes (11) end to end fixed in proper order, and membranous structure (3), it sets up on rectangular frame (1), its characterized in that, including electronic adjusting screw (4), it includes:
second rigid links (43) spaced apart on a pair of adjacent edge portions of the membrane structure (3);
a screw (42) having one end rotatably connected to the second rigid link (43), the screw (42) being movable in the axial direction thereof to push and pull the second rigid link (43);
the motor (41) is connected with the other end of the screw rod (42) and drives the screw rod (42) to rotate positively and negatively, and the motor (41) is fixed on the rectangular frame (1);
the strain gauge structure further comprises strain gauges (46) which are pasted on the membrane structure (3) and are close to the second rigid connecting rods (43), and the number of the strain gauges (46) is matched with that of the second rigid connecting rods (43);
a screw sleeve (45) is arranged on the second rigid connecting rod (43), one end of the screw (42) is clamped with the screw sleeve (45), and the screw (42) is rotatably connected with the screw sleeve (45);
the second rigid connecting rod (43) is provided with a second clamp (44), and the second clamp (44) clamps and fixes the edge part of the membrane structure (3);
the strain gauge (46) transmits a sensing signal of the stress of the membrane structure (3) through wired transmission or wireless transmission;
the control computer receives induction signals of the strain gauge (46) through wired transmission or wireless transmission and controls the motor (41) according to the induction signals;
the device also comprises at least one first rigid connecting rod (2) which is provided with a first clamp (21), wherein the first clamp (21) is used for fixing one edge and the adjacent edge of the membrane structure (3);
the device is characterized by further comprising a spring bolt (12), wherein one end of the spring bolt (12) is fixed with the first rigid connecting rod (2), and the other end of the spring bolt (12) is fixed on the square steel pipe (11);
the working method of the automatic tension adjusting system for the building membrane structure comprises the following steps:
step 1, firstly, installing a rectangular frame (1) at a position where a membrane structure (3) is required to be installed in a building;
step 2, fixing one edge of the membrane structure (3) and the adjacent edge thereof with the first rigid connecting rod (2) through a first clamp (21), and then installing a spring bolt (12) on the first rigid connecting rod (2); installing a first rigid connecting rod (2) provided with a spring bolt (12) on a rectangular frame (1);
step 3, mounting a screw rod (42) on a second rigid connecting rod (43), fixing the rest edge part of the membrane structure (3) with the second rigid connecting rod (43) through a second clamp (44), mounting a corresponding motor (41) on the rectangular frame (1) at a position corresponding to the screw rod (42), and connecting the screw rod (42) with the motor (41);
step 4, arranging a strain gauge (46) at a position of the membrane structure (3) close to the second rigid connecting rod (43);
step 5, manually adjusting the tightening film structure (3) according to actual conditions on site to enable the tightening film structure to be straight;
step 6, then connecting the motor (41) and the strain gauge (46) into a control computer, and setting the stress numerical range of the strain gauge (46); when the stress value detected by the strain gauge (46) is smaller or larger than the stress value range, the control computer controls the motor (41) to rotate forwards or backwards according to the sensing signal of the strain gauge (46), so as to drive the screw rod (42) to tighten or loosen the membrane structure (3).
2. The working method of the automatic tension adjusting system for building membrane structure according to claim 1, wherein in step 5, the membrane structure (3) is sequentially tightened from the middle of the membrane surface of the membrane structure (3) to both sides, and then the next side is adjusted by the same method.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110209771.1A CN113073863B (en) | 2021-02-25 | 2021-02-25 | Automatic adjusting system for building membrane structure tensioning and working method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110209771.1A CN113073863B (en) | 2021-02-25 | 2021-02-25 | Automatic adjusting system for building membrane structure tensioning and working method |
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| CN113073863A CN113073863A (en) | 2021-07-06 |
| CN113073863B true CN113073863B (en) | 2021-12-10 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH051446A (en) * | 1990-11-02 | 1993-01-08 | Kumagai Gumi Co Ltd | Roof structure formed by combination of triangle shapes |
| CN201637637U (en) * | 2010-04-23 | 2010-11-17 | 重庆大学 | Cross-shaped screw type film tensioning device |
| CN105822065A (en) * | 2016-03-31 | 2016-08-03 | 中国冶集团有限公司 | Integral tensioning type cable film structure construction method |
| CN109933101A (en) * | 2019-03-15 | 2019-06-25 | 上海交通大学 | A kind of high-precision uniform stress field film two directions tension control device |
-
2021
- 2021-02-25 CN CN202110209771.1A patent/CN113073863B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH051446A (en) * | 1990-11-02 | 1993-01-08 | Kumagai Gumi Co Ltd | Roof structure formed by combination of triangle shapes |
| CN201637637U (en) * | 2010-04-23 | 2010-11-17 | 重庆大学 | Cross-shaped screw type film tensioning device |
| CN105822065A (en) * | 2016-03-31 | 2016-08-03 | 中国冶集团有限公司 | Integral tensioning type cable film structure construction method |
| CN109933101A (en) * | 2019-03-15 | 2019-06-25 | 上海交通大学 | A kind of high-precision uniform stress field film two directions tension control device |
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| CN113073863A (en) | 2021-07-06 |
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