CN110924531A - Device suitable for stretch-draw overall structure construction - Google Patents
Device suitable for stretch-draw overall structure construction Download PDFInfo
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- CN110924531A CN110924531A CN201911111183.3A CN201911111183A CN110924531A CN 110924531 A CN110924531 A CN 110924531A CN 201911111183 A CN201911111183 A CN 201911111183A CN 110924531 A CN110924531 A CN 110924531A
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- cable
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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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- 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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- Architecture (AREA)
- Civil Engineering (AREA)
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a device suitable for tensioning integral structure construction, which comprises a plurality of hollow steel pipes and driving cables which are arranged in a staggered mode, wherein the device for construction comprises a first winch, an upper lug plate, a pulley block, a lower lug plate and a first inhaul cable; the pulley block consists of an even number of fixed pulleys and a number of movable pulleys equal to the even number of fixed pulleys, and the fixed pulleys and the movable pulleys are sequentially arranged from one side close to the hollow steel pipe along the direction far away from the hollow steel pipe; and the lower lug plate is fixed at the lowest end of the pulley block and is connected with the driving cable. The invention relates to a device suitable for construction of a tensioning integral structure, which is characterized in that the total length of an active cable connected to a second lug plate in the tensioning integral structure is reduced through a first winch and prestress is applied, so that other active cables are driven to generate prestress, all cables are in a tensioned state, the aim of applying prestress to the tensioning integral structure is fulfilled, and finally construction and forming are carried out.
Description
Technical Field
The invention relates to the field of integral structure tensioning construction, in particular to a device suitable for integral structure tensioning construction.
Background
The integral tensioning structure is a light, net-shaped and intelligent space system which is composed of a series of discrete compression bars and continuous inhaul cables and can keep a balance state.
As the structure greatly exerts the performance of the material, the integral tension structure which is one of the development directions of the future space structure is certainly and increasingly paid more attention and developed in the 21 st century.
Nowadays, although the students at home and abroad have deeper basic research aspects on the tensioning of the integral structure, such as form finding research, mechanical property analysis and the like. However, no building for tensioning the integral structure in the true sense exists in the world at present, and the construction technology is one of the reasons for preventing the structure from being widely applied.
The present invention relates to a device for the construction of tensioned monolithic structures, which allows the structure to be shaped and prestressed by reducing the length of the cables between the rods. The principle of 'self-supporting and self-stress' of the integral tensioning structure is fully followed, and the construction efficiency and the construction safety are improved.
In order to solve the problems, the scheme is developed accordingly.
Disclosure of Invention
Technical problem to be solved
The invention aims to overcome the defects of the prior art, provides a device suitable for the construction of a tensioning integral structure, and can effectively solve the problems that the construction difficulty of the tensioning integral structure is high, the construction risk coefficient is high, and the form after construction does not meet the design requirement.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a device suitable for stretching and drawing integral structure construction comprises a plurality of hollow steel pipes, a driving cable and a driven cable which are arranged in a staggered mode, wherein the device for construction comprises a first winch, an upper lug plate, a pulley block, a lower lug plate and a first inhaul cable; the pulley block consists of an even number of fixed pulleys and a number of movable pulleys equal to the even number of fixed pulleys, and the fixed pulleys and the movable pulleys are sequentially arranged from one side close to the hollow steel pipe along the direction far away from the hollow steel pipe; the lower ear plate is fixed at the lowest end of the pulley block and is connected with the driving cable, and the upper ear plate is hinged with the pulley block; one end of the first inhaul cable is fixed on the upper part of a movable pulley of the pulley block, then bypasses the smallest pulley in the upper fixed pulley, and downwards bypasses the smallest pulley in the movable pulley; the first winch is arranged in the hollow steel pipe, and the first cable is fixed on the first winch through a hole formed in the hollow steel pipe after the first cable bypasses the last movable pulley.
Preferably, the first winch is provided with a stator, a first lug plate and a rotor, the first lug plate is welded in the rotor of the first winch, and the first inhaul cable passes through a hole with a roller bearing in a hollow steel pipe and is fixed on the first lug plate of the rotor.
Preferably, the inner ring of the hole is fully distributed with the roller bearing so as to reduce the friction between the first inhaul cable and the hollow steel pipe.
Preferably, the device of construction still includes second cable, third cable, locates the second hoist engine on ground, the middle part of hollow steel pipe is provided with second otic placode, third otic placode to be connected with bottom second hoist engine through second cable, third cable, the other end of second cable and third cable is connected and is fixed on the second hoist engine, and the connection position is in the same one side of rotor in the second hoist engine.
Preferably, the second ear plate and the third ear plate are symmetrically welded on two sides of the middle of the hollow steel pipe respectively and are connected with the second inhaul cable and the third inhaul cable respectively.
Preferably, the second cable and the third cable have the same specification as the first cable.
Preferably, the device also comprises a movable trolley, and the trolley is hinged with the bottom end of the hollow steel pipe through a pin shaft.
Preferably, the sum of the number of the fixed pulleys and the number of the movable pulleys is 8, and the tensioning integral structure is a Quadruplex single-cell tensioning integral structure.
(III) advantageous effects
After adopting the technical scheme, compared with the prior art, the invention has the following advantages:
1. according to the device suitable for the construction of the integral tensioning structure, the total length of the active cables connected to the second lug plate in the integral tensioning structure is reduced through the first winch, and prestress is applied, so that other active cables are driven to generate prestress, all the cables are in a tensioned state, the purpose of applying prestress to the integral tensioning structure is achieved, and finally construction forming is carried out, so that the problems that the integral tensioning structure is high in construction difficulty, large in construction danger coefficient, and the form after construction does not meet design requirements are effectively solved.
2. According to the device suitable for the construction of the integral tensioning structure, the two lug plates are arranged in the middle of the hollow steel pipe and are connected with the second winch at the bottom through the two pull cables, so that when the winch in the steel pipe works, the hollow steel pipe cannot rotate relative to the ground along the axis of the hollow steel pipe, and the construction efficiency is improved.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a cross-sectional elevation view of the present invention;
FIG. 3 is a schematic view of the present invention in use;
FIG. 4 is an enlarged view of a portion of the structure of FIG. 3;
FIG. 5 is a view showing a state in which the second hoist is used according to the present invention;
FIG. 6 is a schematic view of the structure of the cart according to the present invention;
fig. 7 is a plan view of the first hoist according to the present invention.
In the figure: the device comprises a hollow steel pipe 1, a fixing plate 2, a roller bearing 3, a hole 4, a first winch 5, a stator 51, a first lug plate 52, a rotor 53, an upper lug plate 6, a first pull rope 7, a pulley block 8, a lower lug plate 9, a second lug plate 10, a third lug plate 11, a second pull rope 12, a third pull rope 13, a second winch 14, a trolley 15, a pin shaft 151, a fourth lug plate 152, a steel plate 153, a movable caster 154, a driving rope 16 and a driven rope 17.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples.
As shown in fig. 1-6: a device suitable for tensioning integral structure construction comprises a plurality of hollow steel pipes 1 which are arranged in a staggered mode, a driving cable 16 and a driven cable 17, wherein the device for construction (the schematic connection diagram of the hollow steel pipes 1 is shown in attached figures 3-4) comprises a first winch 5, an upper lug plate 6, a pulley block 8 and a lower lug plate 9.
The first winch 5 is fixed in the hollow steel pipe 1 through a fixed plate 2, the pulley block 8 is composed of an even number of fixed pulleys and a number of movable pulleys equal to the even number of fixed pulleys, and the installation schematic diagram (see the attached figure 2) is as follows: the first guy cable 7 is sequentially arranged from one side close to the hollow steel pipe 1 along the direction far away from the hollow steel pipe 1, one end of the first guy cable 7 is fixed at the upper part of the pulley block 8, then the first guy cable passes through the smallest pulley in the fixed pulleys at the upper part, then the first guy cable downwards passes through the smallest pulley in the movable pulleys, and the first guy cable 7 is repeatedly wound in the method, each pulley can be wound only once, and the first guy cable 7 is fixed on the first winch 5 through the hole 4 arranged on the hollow steel pipe 1 after passing through the last movable pulley.
The hollow steel tube 1 has a length of about 12 m, an outer diameter of 273 mm and a wall thickness of 16 mm. The first cable 7 uses a 5 × 7-sized steel wire bundle, and the single sheath diameter is 22 mm, and the breaking force is 230 kn.
As shown in fig. 2, the lower ear plate 9 is fixed at the lowest end of the pulley block 8, and the upper ear plate 6 is hinged with the pulley block 8, so that the pulley block 8 can rotate along the axial direction of the hollow steel pipe 1. It should be noted that: the pulley block 8 can rotate along the central axis direction of the hollow steel tube 1, namely, when the device works, the lower ear plate 9 can be transversely displaced, but the upper ear plate 9 and the lower ear plate 9 are always positioned on the same straight line and can not be dislocated.
The lower ear plate 9 is welded with the lower part of the pulley block 8 and is connected with the active cable 16 in the integral tensioning structure, so that the pulley block 8 and the lower ear plate 9 can be displaced by recycling the first cable 7 when the device works, the total length of the active cable 16 connected to the second ear plate 10 in the integral tensioning structure is reduced, prestress is applied, other active cables 16 are driven to generate prestress, the aim of applying prestress to the integral tensioning structure is fulfilled, and finally the integral tensioning structure is formed.
The inner ring of the hole 4 is fully distributed with the roller bearing 3, and when the device works, the first inhaul cable 7 is ensured to be vertical to the rotor 53, so that the friction between the first inhaul cable 7 and the hollow steel pipe 1 is reduced.
As shown in fig. 2: the number of 4 fixed pulleys and 4 movable pulleys is adopted in the scheme, and the device is mainly used for a Quadruplex single-cell tensioning integral structure. Built into the hollow steel tube 1 is a commercially available winch with a single rope hoisting capacity of 2.5 tons (25kN) and providing a prestressing of 100kN for the two active ropes 16. Here 8 are provided, which happens to provide sufficient prestressing of the structure.
Of course, the device can be applied to different tensioning integral structures or different prestress supplies, and the number of the pulleys can be increased or reduced appropriately.
As shown in fig. 5: the device of construction still includes second cable 12, third cable 13, locate the second hoist engine 14 on ground, the middle part of hollow steel pipe 1 is provided with second otic placode 10, third otic placode 11, second otic placode 10 and third otic placode 11 are respectively at the bilateral symmetry welding in hollow steel pipe 1 middle part, and respectively through second cable 12, third cable 13 is connected with bottom second hoist engine 14, the other end of second cable 12 and third cable 13 is connected on second hoist engine 14, the connection position is in the same one side of rotor 53 in second hoist engine 14.
Wherein set up second otic placode 10, third otic placode 11 and be connected with the second hoist engine 14 of first cable 7 and second cable 12 bottom in the middle part of hollow steel pipe 1, guarantee that hollow steel pipe 1 can not take place the rotation on relative ground along its axis when the first hoist engine 5 in hollow steel pipe 1 during operation.
As shown in fig. 6: the bottom of the hollow steel pipe 1 is provided with a movable trolley 15 which becomes a sliding support. The movable trolley 15 comprises a pin shaft 151, a fourth ear plate 152 and a steel plate 153 movable caster 154, wherein the fourth ear plate 152 is fixed on the steel plate 153. Four movable casters 154 are provided, and are disposed at the lower portion of the steel plate 153, and the bottom of the hollow steel tube 1 is disposed on the fourth ear plate 152 through a pin 151.
The diameter of the pin shaft 151 is 20 mm, the thickness of the fourth ear plate 152 is 20 mm, the movable caster 154 allows 360-degree rotation, the diameter of the wheel is 50 cm, and the movable trolley 15 provides practical guarantee for the theoretical basis that the support of the tensioning integral structure becomes a sliding support.
As shown in fig. 7: the first winch 5 comprises a stator 51, a first lug plate 52 and a rotor 53 (all of which are commercially available), wherein the first lug plate 52 is welded in the rotor 53 of the first winch 5, and the first cable 7 passes through the hole 4 with the roller bearing 3 in the hollow steel pipe 1 and is fixed on the lug plate of the rotor 53, so that the first cable 7 can be wound on the rotor 53 when the rotor 53 works.
Wherein the assembly pulley 8 is composed of: two pulleys of 50 mm diameter, two pulleys of 100 mm diameter, two pulleys of 150 mm diameter, two pulleys of 200 mm diameter, a pulley thickness of 30 mm, a steel material of Q235.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and the protection scope must be determined by the scope of the claims.
Claims (8)
1. The utility model provides a device suitable for stretch-draw overall structure construction, includes a plurality of staggered arrangement's hollow steel pipe, initiative cable, driven cable, its characterized in that: the device for construction comprises a first winch, an upper lug plate, a pulley block, a lower lug plate and a first inhaul cable; the pulley block consists of an even number of fixed pulleys and a number of movable pulleys equal to the even number of fixed pulleys, and the fixed pulleys and the movable pulleys are sequentially arranged from one side close to the hollow steel pipe along the direction far away from the hollow steel pipe; the lower ear plate is fixed at the lowest end of the pulley block and is connected with the driving cable, and the upper ear plate is hinged with the pulley block; one end of the first inhaul cable is fixed on the upper part of a movable pulley of the pulley block, then bypasses the smallest pulley in the upper fixed pulley, and downwards bypasses the smallest pulley in the movable pulley; the first winch is arranged in the hollow steel pipe, and the first cable is fixed on the first winch through a hole formed in the hollow steel pipe after the first cable bypasses the last movable pulley.
2. A device adapted for use in the construction of tensioned monolithic structures according to claim 1 wherein: the first winch is provided with a stator, a first lug plate and a rotor, the first lug plate is welded in the rotor of the first winch, and the first inhaul cable passes through a hole with a roller bearing in a hollow steel pipe and is fixed on the first lug plate of the rotor.
3. A device adapted for use in the construction of tensioned monolithic structures according to claim 1 wherein: and the inner ring of the hole is fully distributed with the roller bearing so as to reduce the friction between the first inhaul cable and the hollow steel pipe.
4. A device adapted for use in the construction of tensioned monolithic structures according to claim 1 wherein: the device of construction still includes second cable, third cable, locates the second hoist engine on ground, the middle part of hollow steel pipe is provided with second otic placode, third otic placode to be connected with bottom second hoist engine through second cable, third cable, the other end of second cable and third cable is connected and is fixed on the second hoist engine, connects the position in the same one side of rotor in the second hoist engine.
5. An apparatus adapted for use in the construction of tensioned monolithic structures according to claim 4 wherein: and the second lug plate and the third lug plate are symmetrically welded on two sides of the middle part of the hollow steel pipe respectively and are connected with the second stay cable and the third stay cable respectively.
6. An apparatus adapted for use in the construction of tensioned monolithic structures according to claim 4 wherein: the specifications of the second guy cable and the third guy cable are the same as those of the first guy cable.
7. A device adapted for use in the construction of tensioned monolithic structures according to claim 1 wherein: the steel tube bundle is characterized by further comprising a movable trolley, wherein the trolley is hinged with the bottom end of the hollow steel tube through a pin shaft.
8. A device adapted for use in the construction of tensioned monolithic structures according to claim 1 wherein: the sum of the number of the fixed pulleys and the number of the movable pulleys is 8, and the tensioning integral structure is a Quadropulex single-cell tensioning integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911111183.3A CN110924531B (en) | 2019-11-14 | 2019-11-14 | Device suitable for stretch-draw overall structure construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911111183.3A CN110924531B (en) | 2019-11-14 | 2019-11-14 | Device suitable for stretch-draw overall structure construction |
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| Publication Number | Publication Date |
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| CN110924531A true CN110924531A (en) | 2020-03-27 |
| CN110924531B CN110924531B (en) | 2020-12-25 |
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| CN201911111183.3A Active CN110924531B (en) | 2019-11-14 | 2019-11-14 | Device suitable for stretch-draw overall structure construction |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201785162U (en) * | 2010-09-09 | 2011-04-06 | 中国十五冶金建设有限公司 | Pull pole hoist for arc gird |
| DE102010005461A1 (en) * | 2010-01-21 | 2011-07-28 | Universität Kassel, 34125 | Connection and front team node for tensegrity structures, has hollow cylindrical terminal element, which is open at end and is provided with detour ring |
| ES2367381A1 (en) * | 2009-06-03 | 2011-11-03 | Consejo Superior De Investigaciones Científicas (Csic) | Robot tensegr¿tico. (Machine-translation by Google Translate, not legally binding) |
| JP2014040721A (en) * | 2012-08-21 | 2014-03-06 | Yoshikuni Okura | Mooring structure for chord member |
| CN108301625A (en) * | 2017-12-29 | 2018-07-20 | 中建三局第建设工程有限责任公司 | Hanging component prestressing force hangs drag-line rotary installation tool and its method |
| CN109190208A (en) * | 2018-08-17 | 2019-01-11 | 东南大学 | A kind of active rope prestressed stretch-draw amount of tension integral structure determines method |
| CN209538038U (en) * | 2018-12-25 | 2019-10-25 | 中建三局第一建设工程有限责任公司 | A kind of cable tension device |
-
2019
- 2019-11-14 CN CN201911111183.3A patent/CN110924531B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2367381A1 (en) * | 2009-06-03 | 2011-11-03 | Consejo Superior De Investigaciones Científicas (Csic) | Robot tensegr¿tico. (Machine-translation by Google Translate, not legally binding) |
| DE102010005461A1 (en) * | 2010-01-21 | 2011-07-28 | Universität Kassel, 34125 | Connection and front team node for tensegrity structures, has hollow cylindrical terminal element, which is open at end and is provided with detour ring |
| CN201785162U (en) * | 2010-09-09 | 2011-04-06 | 中国十五冶金建设有限公司 | Pull pole hoist for arc gird |
| JP2014040721A (en) * | 2012-08-21 | 2014-03-06 | Yoshikuni Okura | Mooring structure for chord member |
| CN108301625A (en) * | 2017-12-29 | 2018-07-20 | 中建三局第建设工程有限责任公司 | Hanging component prestressing force hangs drag-line rotary installation tool and its method |
| CN109190208A (en) * | 2018-08-17 | 2019-01-11 | 东南大学 | A kind of active rope prestressed stretch-draw amount of tension integral structure determines method |
| CN209538038U (en) * | 2018-12-25 | 2019-10-25 | 中建三局第一建设工程有限责任公司 | A kind of cable tension device |
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| CN110924531B (en) | 2020-12-25 |
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