CN103362239B - Guy cable structure overload protection device and self-balance cable truss constituted thereby - Google Patents
Guy cable structure overload protection device and self-balance cable truss constituted thereby Download PDFInfo
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- CN103362239B CN103362239B CN201310326516.0A CN201310326516A CN103362239B CN 103362239 B CN103362239 B CN 103362239B CN 201310326516 A CN201310326516 A CN 201310326516A CN 103362239 B CN103362239 B CN 103362239B
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- overload protection
- link rod
- bumper
- protection arrangement
- structure overload
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Abstract
The invention discloses a guy cable structure overload protection device and a self-balance cable truss constituted thereby. The guy cable structure overload protection device is arranged between a fixed end and a steel cable, and comprises a first link rod, a second link rod, a bumper and a sleeve member, wherein the first link rod is linked with the fixed end; the second link rod is linked with the steel cable; the bumper is linked between the first link rod and the second link rod; the two ends of the bumper are provided with internal thread connecting holes, an annular groove is formed in the middle of the bumper, and the bottom of the annular groove is provided with a fracture notch; the sleeve member is used for casing the bumper; a muff coupling cavity for accommodating the bumper is arranged in the sleeve member; the end part of the second link rod is provided with an elastic member; and the elastic member and the bumper are sandwiched between the two ends of the muff coupling cavity. The guy cable structure overload protection device protects the steel cable from being snapped, certain tension of the guy cable is maintained by using high strength and high bearing performance of spring gel, and the guy cable system is prevented from invalidation so as not to cause safety accidents. According to the guy cable structure overload protection device, a nesting structure and threaded connection are adopted; and the guy cable structure overload protection device has the advantages of simple structure, low production cost, easiness in disassembly, assembly and maintenance and small space occupation.
Description
Technical field
The present invention relates to a kind of overload protection arrangement, the self-balanced cabled truss more particularly referring to a kind of stayed structure overload protection arrangement and be made up of it.
Background technology
At present, the drag-line of most of cable curtain wall does not design, installs overload protection arrangement, and stayed structure is by the tension force formation structural system of drag-line, and the rigidity of the larger acquisition of pretension of drag-line is larger.The pretension setting of some engineering drag-lines is too much, and when the engineering also had actual stretch-draw, pretension exceedes setting value.When the fortuitous events such as earthquake cause agent structure to be out of shape, the pulling force of drag-line continues to strengthen on the basis of pretension, and may exceed the Fracture Force of drag-line, cable wire is pulled off, and stayed structure system lost efficacy, produces serious consequence.The design of small part cable curtain wall, overload protection arrangement is installed, comprises one and be fixed on pedestal on constructure body structure; One to be connected the pillar that as a whole and outer end is provided with hinged-support with pedestal; Rocking arm hinged with the hinged-support on pillar in the middle part of in the of one; One connects the spring assembly be installed between one end and pedestal; One connects the bumper bar be installed between the other end of rocking arm and pedestal, and the pull bar of cable-strut tensile structure or drag-line are also arranged on one end rocking arm having bumper bar.When the pulling force of drag-line exceeds the demarcation Fracture Force of bumper bar, bumper bar destroys, and pulling force carries out redistributing of power by the rocking arm and spring assembly playing leverage, drag-line pulling force is declined rapidly, thus avoids the destruction to drag-line.This device volume is huge, and one is take building usage space, not by architect, owner are accepted; Two is that the scope of application is restricted, and this device can only be used for open bearing place, space, and the bearing that space is inadequate and more intermediate node then cannot use.
Therefore, the present inventor develops a kind of new stayed structure overload protection arrangement for this reason.
Summary of the invention
The object of the invention is to the defect overcoming prior art, the self-balanced cabled truss a kind of stayed structure overload protection arrangement being provided and being made up of it.
For achieving the above object, the present invention is by the following technical solutions:
Stayed structure overload protection arrangement, be located between fixed end and cable wire, comprise the first link rod connected with fixed end, the second link rod connected with cable wire, also comprise the bumper bar be connected between the first link rod and the second link rod, the two ends of described bumper bar are provided with internal thread connection holes, centre is provided with cannelure, and described annular groove bottom is provided with fracture breach; Also comprising the sleeve member for being inserted in bumper bar, in sleeve member, being provided with the socket chamber for being held into bumper bar; The end sleeve of the second link rod is provided with elastic component, and elastic component and bumper bar are located between the two ends in socket chamber.
Its further technical scheme is: described elastic component is elastic rubber tube, and described elastic rubber tube is EU pipe.
Its further technical scheme is: described sleeve member comprises sleeve and the end cap with sleeve ends thread connection.
Its further technical scheme is: be also provided with double end adjusting screw(rod) between described second link rod and cable wire.
Its further technical scheme is: the first link rod is provided with the earhole portion connected with the otic placode of fixed end.
Its further technical scheme is: described elastic component is the composite member of EU pipe and metal tube; Described EU pipe is provided with annular chamber, is point bottom at the bottom of chamber; One end of described metal tube is pointed, and is inserted in the annular chamber of EU pipe; The other end of described metal tube is plane, stretches out in outside the annular chamber of EU pipe, is only butted on the end face of bumper bar.
Self-balanced cabled truss, comprises the main steel pipe be located between two fixed ends, and is laterally located at the strut on main steel pipe, also comprises fore stay, the backstay of being located at side before and after main steel pipe; The two ends of described fore stay are connected with the two ends of main steel pipe by aforesaid stayed structure overload protection arrangement, and the first half of strut is passed in the centre of fore stay; The front end of described strut is provided with to refute and connects pawl; Refute the front side connecing pawl and be fixed with glass plate; The two ends of described backstay are connected with the two ends of main steel pipe by aforesaid stayed structure overload protection arrangement, and the rearward end of strut is passed in the centre of backstay.
Its further technical scheme is: the two ends of described main steel pipe are respectively provided with the collateral plate of one group of symmetry, and described collateral plate is provided with the pin-and-hole and bearing pin that connect with stayed structure overload protection arrangement.
Its further technical scheme is: described main steel pipe is provided with several for the strut hole through strut.
The present invention's beneficial effect is compared with prior art: the present invention adopt elastic component be used as bumper bar fracture after damping, buffering material, drag-line can be cushioned and transmit huge impact force; Utilize the high resiliency performance of spring glue (i.e. EU pipe), can relax after compressive deformation cable wire, and protection cable wire is not pulled off; Utilize spring glue high strength, high-bearing performance, maintain the tension force that drag-line is certain, avoid guy system to lose efficacy, security incident occurs.The present invention adopts shrink-fit structure, adopts thread connection, and its structure is simple, and cost of production is low, is easy to mounting or dismounting and safeguards, taking up room little.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view (the non-stress of spring glue, bumper bar does not disconnect) of stayed structure overload protection arrangement specific embodiment of the present invention;
Fig. 2 is the cross-sectional view (spring glue stress, bumper bar disconnects) of stayed structure overload protection arrangement specific embodiment of the present invention;
Fig. 3 is the modular construction schematic diagram of the a-quadrant in Fig. 1;
Fig. 4 is the modular construction schematic diagram (elastic component employing assembling unit structure) of the a-quadrant in Fig. 1;
Fig. 5 is the floor map of self-balanced cabled truss specific embodiment of the present invention;
Fig. 6 is the B portion enlarged drawing in Fig. 5.
Reference numeral
10 steel pipe 11 otic placodes
20 cable wire 30 stayed structure overload protection arrangements
31 first link rod 311 earhole portions
32 second link rod 33 bumper bars
331 internal thread connection holes 332 internal thread connection holes
333 cannelures 334 rupture breach
34 sleeve members 340 are socketed chamber
341 sleeve 342 end caps
343 through hole 344 holding screws
35 elastic component 35A elastic components
351 EU pipe 3511 annular chambers
3512 point bottom 352 metal tubes
3521 pointed 40 double end adjusting screw(rod)s
60 refute and connect pawl 61 glass plate
70 strut 71 fore staies
The main steel pipe of 72 backstay 80
81 collateral plate 811 pin-and-holes
812 bearing pin 82 strut holes
90 built-in fitting 21 cable wire heads
Detailed description of the invention
In order to more fully understand technology contents of the present invention, below in conjunction with specific embodiment technical scheme of the present invention being introduced further and illustrating, but being not limited to this.
Specific embodiment as Figure 1-3, stayed structure overload protection arrangement 30 of the present invention, be located at a kind of form of structure of steel pipe 10(fixed end) and cable wire 20 between, comprise the first link rod 31 connected with steel pipe 10, the second link rod 32 connected with cable wire 20, also comprise by the bumper bar 33 of thread connection between the first link rod 31 and the second link rod 32, the two ends of bumper bar 33 are provided with the internal thread connection holes 331,332 connected with the first link rod 31, second link rod 32, centre is provided with cannelure 333, is provided with fracture breach 334 bottom cannelure 333; Also comprising the sleeve member 34 for being inserted in bumper bar 33, in sleeve member 34, being provided with the socket chamber 340 for being held into bumper bar 33; The bottom in socket chamber 340 is provided with for the through hole 343 through the first link rod 31.The end sleeve of the second link rod 32 is provided with elastic component 35, and elastic component 35 and bumper bar 33 are located between the two ends in socket chamber 340.The end cap 342 that sleeve member 34 wherein comprises sleeve 341 and connects with sleeve 341 end thread.The other end of sleeve is provided with the holding screw 344 for fixing bumper bar.The head end be also provided with between second link rod 32 and cable wire 20 for the double end adjusting screw(rod) 40(cable wire 20 of tension adjusting have employed cable wire head 21).First link rod 31 is provided with the earhole portion 311 connected with the otic placode 11 of steel pipe 10.The length of elastic component 35 is slightly longer than the degree of depth in sleeve, so that when end cap 342 is mounted to the end of sleeve 341, elastic component forms certain preload pressure, forms impact force when rupturing to prevent bumper bar, but the pulling force that this preload pressure bears much smaller than bumper bar.Double end adjusting screw(rod) is wherein used for producing tensile force, in other embodiment, also can adopt other strainer.
As shown in Figure 2, when the pulling force between the first link rod 31 and the second link rod 32 exceedes the rupture pull force of setting, bumper bar 33 can from the fracture of fracture indentation, there, and under the pulling force effect of cable wire 20, post-rift bumper bar one end acts on elastic component 35.Because elastic component 35 has certain elastic deformation, make drag-line still have certain tensile force, can substantially keep stayed structure indeformable.Wherein, bumper bar is disrumpent feelings rear spring glue compressive deformation, drag-line is relaxed, and reduces drag-line pulling force, and protection cable wire is not pulled off, and spring glue can maintain certain pulling force simultaneously, most of function of reservation curtain wall.Due to the distortion of spring glue, be very easy to find bumper bar disrumpent feelings, because whole stayed structure (such as cable curtain wall) designs by maximum windage or maximal destruction power.When selecting calm, change bumper bar, unclamp end cap, connecting screw rod.Finish changing by drag-line adjustable side tension cable after fuse, cable curtain wall function is recovered.
In the present embodiment, elastic component 35 is elastic rubber tube, wherein, and elastic rubber tube preferred, polyethers type polyurethane pipe.EU is by a kind of novel synthetic material between plastics and rubber of polymers polyalcohol and isocyanate reaction, chain extension, interlinkage.There is resistance to chemical attack, tensile strength, high resiliency, high pressure resistant loading, abrasion performance intensity is high, shock absorption is strong, tear-resistant, radiation hardness, high strength, the superperformance such as high-bearing and damping, buffering.
The present embodiment is applicable to φ 12 cable wire of minimum breaking force 98.71KN, when needing the cable wire being applied to other specifications, according to the minimum breaking force of cable wire, calculate, design the cross section of suitable bumper bar, elastic gum, screw rod, bearing pin, the present embodiment is changed a little.The cable wire of corresponding different-diameter, can become a product line by the present invention's design.
In other embodiment, may there is larger deformation distance in stayed structure, and in order to reduce stayed structure rigidity on the whole, and reduce its destructive power of outer bound pair, stayed structure may need the contract by distance of tens millimeters; Now adopt single elastic tube to be difficult to grasp the compressive strain of this long distance, if unnecessary go out shift length adopt vacant mode, but when bumper bar splits absolutely, huge impact force may be produced.In this case, structure as shown in Figure 4 can be adopted.Elastic component 35A is the composite member of EU pipe 351 and metal tube 352; EU pipe 351 is provided with annular chamber 3511, is point bottom 3512 at the bottom of chamber; One end of metal tube 352 is pointed 3521, and is inserted in the annular chamber 3511 of EU pipe 351; The other end of metal tube 352 is plane, stretches out in outside the annular chamber 3511 of EU pipe, is only butted on the end face of bumper bar 33.Wherein, the metal tube distance stretched out in outside the annular chamber of the EU pipe distance of stretch out and draw back equaled needed for pull bar deducts the deformation distance that EU Guan Suoneng produces.Point bottom 3512 and pointed 3521 preferentially adopts 120-150 degree, and angle is larger, and the time that composite member is extruded distortion is longer.Adopt the combination of this EU pipe and metal tube, the length of EU pipe can be reduced, save materials cost.
As shown in Figure 5, Figure 6, self-balanced cabled truss of the present invention, comprises the main steel pipe 80 between the built-in fitting 90 being located at two fixed ends, and is laterally located at the strut 70 on main steel pipe 80, also comprises fore stay 71, the backstay 72 of being located at side before and after main steel pipe 80; The two ends of fore stay 71 are connected with the two ends of main steel pipe 80 by aforesaid stayed structure overload protection arrangement 30, and the first half of strut 70 is passed in the centre of fore stay 71; The front end of strut 70 is provided with to refute and connects pawl 60; Refute the front side connecing pawl 60 and be fixed with glass plate 61(and curtain wall); The two ends of backstay 72 are connected with the two ends of main steel pipe 80 by aforesaid stayed structure overload protection arrangement 30, and the rearward end of strut 70 is passed in the centre of backstay 72.
The two ends of main steel pipe 80 are respectively provided with the collateral plate 81 of one group of symmetry, and collateral plate 81 is provided with the pin-and-hole 811 and bearing pin 812 that connect with stayed structure overload protection arrangement 30.Main steel pipe 80 is provided with several for the strut hole 82 through strut 70.
By this self-balanced cabled truss, curtain wall can be built into.Owing to have employed stayed structure overload protection arrangement; when running into the harsh conditions such as violent typhoon or earthquake; when whole self-balanced cabled truss exceeds its limit; bumper bar ruptures; the prefastening force of drag-line script superelevation is released; drag-line can not rupture, and also still support drag-line (i.e. cable wire) by sleeve and elastic component, whole self-balanced cabled truss can not collapse.After harsh conditions generation, the stayed structure overload protection arrangement again more renewed.Have employed the self-balanced cabled truss of stayed structure overload protection arrangement, drag-line is easy fracture not, safe and reliable, and produce installation cost low, dismounting is simple.
In other embodiment, safeties of the present invention also can in other stayed structure, such as drag-line roof structure.
In sum, the present invention adopt elastic component be used as bumper bar fracture after damping, buffering material, drag-line can be cushioned and transmit huge impact force; Utilize the high resiliency performance of spring glue, can relax after compressive deformation cable wire, and protection cable wire is not pulled off; Utilize spring glue high strength, high-bearing performance, maintain the tension force that drag-line is certain, avoid guy system to lose efficacy, security incident occurs.
Above-mentionedly only further illustrate technology contents of the present invention with embodiment, so that reader is easier to understand, but does not represent embodiments of the present invention and be only limitted to this, any technology done according to the present invention extends or recreation, all by protection of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (8)
1. stayed structure overload protection arrangement, be located between fixed end and cable wire, comprise the first link rod connected with fixed end, the second link rod connected with cable wire, characterized by further comprising the bumper bar be connected between the first link rod and the second link rod, the two ends of described bumper bar are provided with internal thread connection holes, centre is provided with cannelure, and described annular groove bottom is provided with fracture breach; Also comprising the sleeve member for being inserted in bumper bar, in sleeve member, being provided with the socket chamber for being held into bumper bar; The end sleeve of the second link rod is provided with elastic component, and elastic component and bumper bar are located between the two ends in socket chamber; Described elastic component is the composite member of EU pipe and metal tube; Described EU pipe is provided with annular chamber, is point bottom at the bottom of chamber; One end of described metal tube is pointed, and is inserted in the annular chamber of EU pipe; The other end of described metal tube is plane, stretches out in outside the annular chamber of EU pipe, is only butted on the end face of bumper bar.
2. stayed structure overload protection arrangement according to claim 1, it is characterized in that described elastic component is elastic rubber tube, described elastic rubber tube is EU pipe.
3. stayed structure overload protection arrangement according to claim 1, is characterized in that described sleeve member comprises sleeve and the end cap with sleeve ends thread connection.
4. stayed structure overload protection arrangement according to claim 1, is characterized in that also being provided with double end adjusting screw(rod) between the second described link rod and cable wire.
5. the stayed structure overload protection arrangement according to claim, is characterized in that described first link rod is provided with the earhole portion connected with the otic placode of fixed end.
6. self-balanced cabled truss, is characterized in that comprising the main steel pipe be located between two fixed ends, and is laterally located at the strut on main steel pipe, also comprises fore stay, the backstay of being located at side before and after main steel pipe; The two ends of described fore stay are connected with the two ends of main steel pipe by stayed structure overload protection arrangement according to claim 1, and the first half of strut is passed in the centre of fore stay; The front end of described strut is provided with to refute and connects pawl; Refute the front side connecing pawl and be fixed with glass plate; The two ends of described backstay are connected with the two ends of main steel pipe by stayed structure overload protection arrangement according to claim 1, and the rearward end of strut is passed in the centre of backstay.
7. self-balanced cabled truss according to claim 6, is characterized in that the two ends of described main steel pipe are respectively provided with the collateral plate of one group of symmetry, and described collateral plate is provided with the pin-and-hole and bearing pin that connect with stayed structure overload protection arrangement.
8. self-balanced cabled truss according to claim 6, is characterized in that described main steel pipe is provided with several for the strut hole through strut.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310326516.0A CN103362239B (en) | 2013-07-30 | 2013-07-30 | Guy cable structure overload protection device and self-balance cable truss constituted thereby |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310326516.0A CN103362239B (en) | 2013-07-30 | 2013-07-30 | Guy cable structure overload protection device and self-balance cable truss constituted thereby |
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| CN103362239A CN103362239A (en) | 2013-10-23 |
| CN103362239B true CN103362239B (en) | 2015-07-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104111133B (en) * | 2014-06-10 | 2016-05-25 | 浙江省建筑科学设计研究院有限公司 | Large-span prestressed drag-line steel structure cable power monitoring system and monitoring method |
| CN106315497B (en) * | 2016-09-23 | 2018-09-25 | 成都九十度工业产品设计有限公司 | A kind of breaking device of building engineering equipment |
| CN107973225A (en) * | 2016-09-23 | 2018-05-01 | 成都九十度工业产品设计有限公司 | A kind of ceramics |
| CN108560785A (en) * | 2018-05-24 | 2018-09-21 | 东南大学 | Antiknock curtain wall support system and its construction method |
| CN112502310A (en) * | 2020-12-14 | 2021-03-16 | 扬州大学 | Displacement amplification type self-resetting damper based on pre-pressed disc spring |
| CN117985575B (en) * | 2024-02-21 | 2024-09-24 | 中国二十二冶集团有限公司 | Hoisting cable force regulation overload prevention device and hoisting system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118658U (en) * | 1991-10-31 | 1992-10-14 | 张鸣 | Towing device for automotives |
| CN2592744Y (en) * | 2003-01-03 | 2003-12-17 | 珠海市晶艺玻璃工程有限公司 | Inhaul-cable overload protection apparatus |
| CN2663654Y (en) * | 2003-12-20 | 2004-12-15 | 辽河油田裕隆实业总公司 | Dual fail-safe bridle of insulation and pulling apart |
| CN201158877Y (en) * | 2008-02-25 | 2008-12-03 | 鲁文杰 | Glass curtain wall pre-stress overload safeguard |
| CN201395251Y (en) * | 2009-04-22 | 2010-02-03 | 巨力索具股份有限公司 | Airplane pulling cable |
| CN203452233U (en) * | 2013-07-30 | 2014-02-26 | 深圳市三鑫幕墙工程有限公司 | Inhaul cable structure overload protection device and self-balancing cable truss composed of inhaul cable structure overload protection device |
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