CN204983316U - Bar steel arm -tie cable dome structure - Google Patents
Bar steel arm -tie cable dome structure Download PDFInfo
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- CN204983316U CN204983316U CN201520723628.4U CN201520723628U CN204983316U CN 204983316 U CN204983316 U CN 204983316U CN 201520723628 U CN201520723628 U CN 201520723628U CN 204983316 U CN204983316 U CN 204983316U
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- steel arm
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- shaped steel
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Abstract
The utility model discloses a bar steel arm -tie cable dome structure, including bar steel arm -tie, oblique cord, vaulting pole, endless rope, central inner ring beam and peripheral outer ring beam, the one end and the central inner ring beam of bar steel arm -tie are connected, and the other end passes through the tip node to be connected with peripheral outer ring beam, the upper end of oblique cord and vaulting pole is passed through connected node and is connected with bar steel arm -tie, the upper end and the lower extreme of adjacent central shoring pole are connected to the oblique cord, the lower extreme with the central shoring pole is connected to the endless rope to it is closed along the hoop, establish prestressing force through prestressing force stretch -draw in bar steel arm -tie, oblique cord, endless rope, form the full tension structure that has certain rigidity. The utility model discloses a replacement cable in thermal rolling steel plate area reduces the cord clip quantity, has effectively reduced structure construction cost, structure joint accessible bolted connection easily installs upper portion rigidity roofing, and it is portably fast to construct.
Description
Technical field
The utility model relates to the space structures technical field of civil engineering, is specifically related to a kind of bar shaped steel arm-tie cable dome structure.
Background technology
Cable dome structure have adapt to large, the dead load of span light, make full use of Materials with High Strength, save material, site assembly degree is high, speed of application fast and the advantage such as construction environmental protection, be extremely widely used in large span spatial structure.Conventional rigid roofing materials comparatively the flexible roofing material such as film material to have structure stress reasonable, be convenient to roof heat insulation, anti-pollution is strong, easy construction and the advantage such as cost is lower, in flexible structure, application has huge economic benefit.But when rigid roofing plate is applied to conventional Cable Structure, the connection between cable body and rigid roofing needs special structure to connect measure, due to cable body, connects measure often complex structure, constructs loaded down with trivial details, add structure building total cost.In addition, rigid roofing often span ability is little, and conventional Cable Structure often size of mesh opening is comparatively large, need to set up aggregated(particle) structure supporting roofing, roof load is passed to main structure, this proposes high requirement to aggregated(particle) structure span ability.For conventional Cable Structure, because the notochord of tension only has axial rigidity, without bending rigidity, need larger Suo Li could provide enough resiliency supported for aggregated(particle) structure, so the aggregated(particle) structure between rigid roofing material and cable body is often shelved on strut top, which again increases the complexity of strut place joint structure, cord clip antiskid is had higher requirement.Therefore, how being applied to better in the flexible structures such as Cable dome by rigid roofing is a key issue needing solution badly.
Utility model content
The purpose of this utility model is to solve the problem that conventional Cable dome and rigid roofing combined structure are complicated, cost is higher, propose a kind of novel tension structure---bar shaped steel arm-tie cable dome structure, this structure had both had all advantages of the flexible structures such as traditional Cable dome, overcame the difficulty being difficult to apply rigid roofing in flexible structure simultaneously.
The technical solution adopted in the utility model is: a kind of bar shaped steel arm-tie cable dome structure, comprise bar shaped steel arm-tie, oblique cord, strut, strop, center inner ring beam and periphery outer-ring beam, one end of described bar shaped steel arm-tie is connected with center inner ring beam, the other end is connected with periphery outer-ring beam by endpoint node, described oblique cord is connected with bar shaped steel arm-tie by connected node with the upper end of strut, described oblique cord connects the top and bottom of adjacent ring strut, described strop connects the lower end with central shoring bar, and circumferentially close, bar shaped steel arm-tie is pulled in by prestressing force, oblique cord, prestressing force is set up in strop, form the full tension structure with certain rigidity,
Described bar shaped steel arm-tie adopts multilayer strip hot-rolled steel strip to be formed by stacking up and down, and strip hot-rolled steel strip reserves bar shaped bolt hole every certain distance, by bolt presses, is provided with pad between each layer strip hot-rolled steel strip.
As preferably, described endpoint node comprises bearing pin otic placode, end plate, stiffening rib, junction plate and high-strength bolt, the one side of described end plate is welded with bearing pin otic placode, described stiffening rib strengthens bearing pin otic placode and end plate, the another side of end plate is welded with two pieces of junction plates, described bar shaped steel arm-tie inserts between two pieces of junction plates, and is connected by high-strength bolt, and the intermediate layer strip hot-rolled steel strip in bar shaped steel arm-tie is welded with end plate.In the bar shaped steel arm-tie Cable dome improvement stage, high-strength bolt is not installed, and bear gravity load by means of only intermediate layer strip hot-rolled steel strip, individual layer hot-rolled steel strip bending rigidity is little, flexible, is beneficial to lifting; Before stretch-draw, high-strength bolt is installed, makes composite steel arm-tie form entirety at endpoint node place, strengthen bonding strength, effectively bear prestressing force.
As preferably, described gusset plate is connected with strip steel arm-tie by bolt, gusset plate corresponds to the position prepared screw-bolt hole of bar shaped bolt hole, backing plate is provided with between this place each layer strip hot-rolled steel strip, the same gusset plate of planar dimension of backing plate, the same pad of thickness, the soffit of gusset plate is welded with otic placode, and otic placode is connected with strut with oblique cord respectively.
Bar shaped steel arm-tie cable dome structure of the present utility model, by conventional cable dome structure only the flexible notochord of tension replace with the flexible bar type steel arm-tie of only tension.The upper end of strut and oblique cord is all hinged with steel arm-tie, and rigid roofing is connected with steel arm-tie by bolt or welding, and oblique cord connects the top and bottom of adjacent ring strut, and strop connection is with the lower end also circumferentially closed arrangement of central shoring bar; And be pulled in bar shaped steel arm-tie, oblique cord and strop by prestressing force and all set up pretension.
The utility model bar shaped steel arm-tie adopts the hardware of the energy tension of high strength.Bar shaped steel arm-tie can be bolted by several bar shaped steel arm-ties according to the size of pretension.Bar shaped steel arm-tie size, because length direction is much larger than thickness direction, therefore can be ignored by out of plane stiffness, be approximately flexible member.
The beneficial effects of the utility model: 1) bar shaped steel arm-tie and top rigid roofing connected node simple structure, be easy to apply ripe bolt or solder technology, easy construction, is conducive to the mechanical characteristic making full use of flexible structure and rigid roofing; 2) steel arm-tie thickness is relatively thin for overall structure span, before non-Shi Hanzhang, rigidity is more weak, becomes flexible state, pre existing stress technique and kinematics of mechanism mounting means can be utilized to realize without support installing, meet the trend of green construction; 3) relative to conventional Cable Structure, steel arm-tie does not need the parts such as ground tackle, cord clip, and price of steel product is lower relative to cable body material, reduce further cost, has larger to apply potentiality.
Accompanying drawing explanation
Fig. 1 is that the utility model bar shaped steel arm-tie Cable dome three-dimensional shaft measures intention;
Fig. 2 is the utility model bar shaped steel arm-tie Cable dome generalized section;
Fig. 3 is the utility model bar shaped steel arm-tie formation level schematic diagram;
Fig. 4 is the utility model bar shaped steel arm-tie structure elevational schematic view;
Fig. 5 is the utility model bar shaped steel arm-tie endpoint node organigram.
Fig. 6 is the utility model bar shaped steel arm-tie Cable dome connected node organigram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in figures 1 to 6, a kind of bar shaped steel arm-tie cable dome structure, comprise bar shaped steel arm-tie 1, oblique cord 2, strut 3, strop 4, center inner ring beam 5 and periphery outer-ring beam 6, one end of described bar shaped steel arm-tie 1 is connected with center inner ring beam 5, the other end is connected with periphery outer-ring beam 6 by endpoint node 7, described oblique cord 2 is connected with bar shaped steel arm-tie 1 by connected node 8 with the upper end of strut 3, described oblique cord 2 connects the top and bottom of adjacent ring strut 3, described strop 4 connects the lower end of same central shoring bar 3, and circumferentially close, bar shaped steel arm-tie 1 is pulled in by prestressing force, oblique cord 2, prestressing force is set up in strop 4, form the full tension structure with certain rigidity,
Described bar shaped steel arm-tie 1 adopts multilayer strip hot-rolled steel strip about 9 to be formed by stacking, and strip hot-rolled steel strip 9 reserves bar shaped bolt hole 10 every certain distance, is compressed by bolt 11, is provided with pad 12 between each layer strip hot-rolled steel strip 9.
Described endpoint node 7 comprises bearing pin otic placode 13, end plate 14, stiffening rib 15, junction plate 16 and high-strength bolt 17, the one side of described end plate 14 is welded with bearing pin otic placode 13, described stiffening rib 15 strengthens bearing pin otic placode 13 and end plate 14, the another side of end plate 14 is welded with two pieces of junction plates 16, described bar shaped steel arm-tie 1 inserts between two pieces of junction plates 16, and connected by high-strength bolt 17, the intermediate layer strip hot-rolled steel strip 18 in bar shaped steel arm-tie 1 is welded with end plate 14.In the bar shaped steel arm-tie Cable dome improvement stage, high-strength bolt 17 is not installed, and bear gravity load by means of only intermediate layer strip hot-rolled steel strip 18, individual layer hot-rolled steel strip bending rigidity is little, flexible, is beneficial to lifting; Before stretch-draw, high-strength bolt 17 is installed, makes composite steel arm-tie form entirety at endpoint node place, strengthen bonding strength, effectively bear prestressing force.
Described gusset plate 19 is connected with strip steel arm-tie 1 by bolt 11, gusset plate 19 corresponds to the position prepared screw-bolt hole of bar shaped bolt hole 10, backing plate 20 is provided with between this place each layer strip hot-rolled steel strip 9, the planar dimension of backing plate 20 is with gusset plate 19, thickness is with pad 12, the soffit of gusset plate 19 is welded with otic placode 21, and otic placode 21 is connected with strut 3 with oblique cord 2 respectively.
Implement the basic step of the cable dome structure design of the utility model bar shaped steel arm-tie and construction
1) bar shaped steel arm-tie cable dome structure design
(1) geometric topo-relationship of bar shaped steel arm-tie cable dome structure is first determined, and support restraint condition;
(2) based on bar shaped steel arm-tie Cable dome, carry out structure and look for shape and force finding, tentatively determine structure position shape, the material of prestressing force and component and specification;
(3) structural ultimate bearing capacity analysis, serviceability limit state analysis and other necessary analysis is carried out;
(4) adjustment and optimum structural parameter, comprise the band number of steel arm-tie, the position of high-strength bolt and number etc.
2) bar shaped steel arm-tie cable dome structure construction
Bar shaped steel arm-tie cable dome structure is still flexible structure under unstress state, so can adopt the non-stand construction method of Cable dome, is specially:
(1) assembling near the ground: near the ground, draw ring, bar shaped steel arm-tie, part depression bar, oblique cord and strop in unstressed assembling; With at the mounted outer press ring of design attitude for bearing, between outer press ring and interior draw ring install promote frock, comprise jack and lift cable; Traction frock rope is installed between outer press ring and most outer shroud steel arm-tie; Lift cable and drag cable alternately operating, accumulate depression bar, strop and the oblique cord of installing periphery from inside to outside in low latitude.
(2) aerotow promotes: take outer press ring as bearing, and internal draw ring and most outer shroud steel arm-tie carry out classification and alternately promote and draw; In each cycle operation, first should promote and draw again, make the shape that steel arm-tie remains identical with unstressed shape, thus under making depression bar, strop and oblique cord all be suspended on steel arm-tie, ensure the stable of sagging rope leverage; Along with the rising of rope leverage, the inclination angle of lift cable reduces gradually close to level, now utilizes drag cable to be connected in place with outer press ring by most outer shroud steel arm-tie; Remove drag cable and lift cable, now mainly stressed is steel arm-tie, and under other rope bar is suspended on steel arm-tie.
(3) high-altitude Tension Forming: the stretching rope drawing most outer shroud oblique cord, until the rope head lengthened is connected with outer press ring; Remove stretching rope, tensioning tooling and jack are installed; Synchronously active stretch-draw is carried out, until shaping structures to most outer shroud oblique cord.
Below by reference to the accompanying drawings embodiment of the present utility model is described in detail, but the utility model is not limited to described embodiment.For those of ordinary skill in the art, in the scope of principle of the present utility model and technological thought, embodiment is carried out to these embodiments and carries out multiple change, amendment, replacement and distortion and still fall in protection domain of the present utility model.
Claims (3)
1. a bar shaped steel arm-tie cable dome structure, it is characterized in that: comprise bar shaped steel arm-tie, oblique cord, strut, strop, center inner ring beam and periphery outer-ring beam, one end of described bar shaped steel arm-tie is connected with center inner ring beam, the other end is connected with periphery outer-ring beam by endpoint node, described oblique cord is connected with bar shaped steel arm-tie by connected node with the upper end of strut, described oblique cord connects the top and bottom of adjacent ring strut, described strop connects the lower end with central shoring bar, and circumferentially close, bar shaped steel arm-tie is pulled in by prestressing force, oblique cord, prestressing force is set up in strop, form the full tension structure with certain rigidity,
Described bar shaped steel arm-tie adopts multilayer strip hot-rolled steel strip to be formed by stacking up and down, and strip hot-rolled steel strip reserves bar shaped bolt hole every certain distance, by bolt presses, is provided with pad between each layer strip hot-rolled steel strip.
2. a kind of bar shaped steel arm-tie cable dome structure according to claim 1, it is characterized in that: described endpoint node comprises bearing pin otic placode, end plate, stiffening rib, junction plate and high-strength bolt, the one side of described end plate is welded with bearing pin otic placode, described stiffening rib strengthens bearing pin otic placode and end plate, the another side of end plate is welded with two pieces of junction plates, described bar shaped steel arm-tie inserts between two pieces of junction plates, and connected by high-strength bolt, the intermediate layer strip hot-rolled steel strip in bar shaped steel arm-tie is welded with end plate.
3. a kind of bar shaped steel arm-tie cable dome structure according to claim 1, it is characterized in that: described gusset plate is connected with strip steel arm-tie by bolt, gusset plate corresponds to the position prepared screw-bolt hole of bar shaped bolt hole, backing plate is provided with between this place each layer strip hot-rolled steel strip, the same gusset plate of planar dimension of backing plate, the same pad of thickness, the soffit of gusset plate is welded with otic placode, and otic placode is connected with strut with oblique cord respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520723628.4U CN204983316U (en) | 2015-09-17 | 2015-09-17 | Bar steel arm -tie cable dome structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520723628.4U CN204983316U (en) | 2015-09-17 | 2015-09-17 | Bar steel arm -tie cable dome structure |
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| Publication Number | Publication Date |
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| CN204983316U true CN204983316U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520723628.4U Expired - Fee Related CN204983316U (en) | 2015-09-17 | 2015-09-17 | Bar steel arm -tie cable dome structure |
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| CN (1) | CN204983316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113692A (en) * | 2015-09-17 | 2015-12-02 | 东南大学 | Strip-shaped steel pulling plate cable dome structure |
-
2015
- 2015-09-17 CN CN201520723628.4U patent/CN204983316U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113692A (en) * | 2015-09-17 | 2015-12-02 | 东南大学 | Strip-shaped steel pulling plate cable dome structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20180917 |