CN201236413Y - Continuous beam string structure - Google Patents
Continuous beam string structure Download PDFInfo
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- CN201236413Y CN201236413Y CNU2008201202956U CN200820120295U CN201236413Y CN 201236413 Y CN201236413 Y CN 201236413Y CN U2008201202956 U CNU2008201202956 U CN U2008201202956U CN 200820120295 U CN200820120295 U CN 200820120295U CN 201236413 Y CN201236413 Y CN 201236413Y
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- tension string
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- rope
- continuous type
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Abstract
The utility model discloses a continuous beam string structure which comprises a curved beam, a curved cable, struts and anchor devices, wherein the curved beam is in the shape of a wave curve, i.e. a wave trough is in the middle, and wave crests are at both sides; the shape of the curved cable is in the shape of another wave curve, i.e. a wave crest is in the middle, and wave troughs are at both sides; struts are respectively arranged between the middle wave trough and the both side wave crests of the curved beam and the middle wave crest of the curved cable, and both ends of the curved cable are respectively fixed on the curved beam through the anchor devices. The utility model has simple and definite structure stress and concise and thorough building effect so as to be a self-balancing structural system which can decrease a rise-span ratio, improve the building clearance and decrease indexes of steel consumption and manufacture cost in the same span. At the same time, the utility model can improve the stability and the integrity of the structure and can be widely applicable to various occasions, such as multispan exhibition halls, factories, warehouses, and the like.
Description
Technical field
The utility model relates to building field, especially relates to a kind of continuous type tension string beam structure.
Background technology
Tension string beam structure is gained the name in the loading characteristic of this structural system, promptly " connects bending resistance compressed member and tension member and the self equilibrium systems that forms with strut ".Up to now, existing tension string beam structure system is that the mechanical characteristic according to simply supported beam provides, by the stiffening member that winds up with the lower edge flexible cable and be connected a kind of stress system that strut combines.Therefore structure constitutes succinctly, and power stream transmits clear and definite.From the angle of architectural design, the tension string beam structure form merrily and lightheartedly is imbued with the building expressive force, is the glad a kind of longspan structure system that adopts of architect.Tension string beam structure has the ability of leap than large space, and at the existing Pudong International Airport in Shanghai terminal of China, engineerings such as Guangzhou international conference exhibition center and Heilungkiang international conference exhibition sports center have adopted this kind form of structure.
But exist following problem in existing tension string beam structure system and the actual engineering thereof:
1) tension string beam structure is a kind of wind load sensitive structure, big and adopt the tension string beam structure of light Roof system for the design wind load, the situation that the lax or pressurized of lower edge drag-line may occur and deactivate under the wind suction effect so often need arrange the wind resistance rope or take the effect of other measures with the opposing wind suction at lower edge.
2) along with the increase of tension string beam structure span, although last quarter rope has adopted the high strength drag-line effectively to resist pulling force, but owing to there is not diagonal web member, the stiffening member that winds up is generally bending component, thereby make structural section increase, caused the steel using amount and the higher shortcoming of comprehensive cost of tension string beam structure.
3) along with the increase of tension string beam structure span, in order to guarantee necessary integral rigidity, need correspondingly improve ratio of rise to span, reduced the building headroom like this, the aesthetic of influence building, this problem all exists in a lot of engineerings, becomes the bottleneck of further breakthrough of tension string beam structure and extensive use.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of continuous type tension string beam structure is provided.
The continuous type tension string beam structure comprises camber beam, curve rope, strut, ground tackle, in the middle of being shaped as of camber beam is trough, both sides are waveform curves of crest, in the middle of being shaped as of curve rope is crest, both sides are waveform curves of trough, the intermediate peak of the middle trough of camber beam and both sides crest and curve rope is provided with strut between the trough of both sides, and curve rope two ends are anchored on the camber beam by ground tackle.
Described camber beam is latticed members or real abdomen formula member.Latticed members or real abdomen formula member are stiffening member.
The curve rope is compressor wire rope or prestress wire.Strut is a compression member.Being connected between strut and camber beam, the curve rope adopts and is articulated and connected.
The utility model is compared the beneficial effect that has with background technology:
1) form of structure is attractive in appearance, is continuous type;
2) stress performance is superior, change the continuous beam stress form into by the simply supported beam stress form that will have tension string beam structure now, thereby reduce the maximal bending moment that vertical load produces in inside configuration effectively, therefore stressed more reasonable, can correspondingly reduce the ratio of rise to span of tension string beam structure, steel using amount indexs etc. make more economical rationality of structure;
3) give full play to the performance of high-strength material, this structure can adopt the high strength compressed member of superior high strength drag-line of examining tensile behavior and pressurized superior performance, gives full play to these two kinds of materials characteristic separately;
4) under identical span situation, the comparable existing tension string beam structure of continuous type tension string beam structure reduces structure height, thereby improves the building headroom, reaches effect attractive in appearance;
5) can effectively reduce the sensitiveness of structure for wind, under the adjusting of continuous type drag-line, structural system can produce a kind of load self adaptation effect, when the drag-line of a side because loads change and pulling force when changing, the pulling force of self-balancing can be provided by the drag-line that winds up of continuous layout, realize new balance in inside configuration; Self adaptation by internal force prevents that drag-line from deactivating under wind load, effectively overcome the sensitiveness of existing tension string beam structure to wind;
6) continuous tension string beam structure can be widely used in the multiple occasion such as exhibit halls, factory building, warehouse of multispan.
Description of drawings
Fig. 1 is a continuous type tension string beam structure schematic diagram;
Fig. 2 is a continuous type tension string beam structure anchorage node schematic diagram;
Fig. 3 is that continuous type is opened string beam load schematic diagram;
Fig. 4 is that single Pin opens string beam load schematic diagram.
The specific embodiment
As Fig. 1,2, the continuous type tension string beam structure comprises camber beam 1, curve rope 2, strut 3, ground tackle 4, in the middle of being shaped as of camber beam 1 is trough, both sides are waveform curves of crest, in the middle of being shaped as of curve rope 2 is crest, and both sides are waveform curves of trough, the intermediate peak of the middle trough of camber beam 1 and both sides crest and curve rope 2, be provided with strut 3 between the trough of both sides, curve rope 2 two ends are anchored on the camber beam 1 by ground tackle 4.
Described camber beam 1 is latticed members or real abdomen formula member.Latticed members or real abdomen formula member are stiffening member.Curve rope 2 is compressor wire rope or prestress wire.Strut 3 is a compression member.Being connected between strut 3 and camber beam 1, the curve rope 2 adopts and is articulated and connected.
The continuous type tension string beam structure is formed by the combination of materials of varying strength.Full curve type rigidity compressed member can adopt various ways, is generally latticed members or real abdomen formula member, and stiffness of structural member is big, and the pressurized performance is good, and construction is also convenient, can adopt modes such as prefabrication, on-site consolidation.The anchor slab of continuous curve rope can be fixed on this beam, tension operation space spaciousness, and easy to operate, drag-line can be hawser or steel strand.Strut is a compressed member, and is hinged with camber beam, curve rope respectively.During the drag-line construction, at first to determine the length under its zero stress state, processing rope head and ground tackle (rope is connected with rope, and the existing many forms of the node that Suo Yuliang connects can be selected), next is to hang rope, rope and continuous type camber beam are connected, and accurately locate, at this moment, structure still is in unstress state, when then each section cable stretching being put in place, structure formation also has rigidity, can bear the external loads effect.
The selection of physical dimension.Continuous type open the string beam the desirable structural span of structure height 1/12～1/20.The sectional dimension of continuous type curved beam and drag-line should be according to the size of physical dimension and external load, and concrete calculating determined.Provide a concrete example below.
Embodiment
Certain structure is one or two to stride roof structure, the single span span is 48 meters, two to stride total span be 96 meters, adopt traditional single span tension string beam structure now in this structure respectively and adopt the continuous tension string beam structure that proposes in this patent, the two kinds of firm beam rigidity of the box that structure adopted compressed members, the cross section of high strength drag-line and strut and the ratio of rise to span of structure are all identical, steel case beam section: high 800mm, wide 400mm, the thick 20mm of web, edge of a wing thickness of slab 30mm, high strength drag-line: 5 Φ 15.24, strut cross section: Φ 180 * 12, structure height: 4m, each node of two kinds of structures all bears live load 20kN, the dead load that dead load 20kN and computer form automatically, see Fig. 3,4, two kinds of structures all apply 300kN prestressing force to the high strength drag-line.Calculate through finite element analysis software MIDAS, single span arranges that the maximum vertical amount of deflection of tension string beam structure is 0.16m, and the greatest axis power in the rigidity compressed member is 553kN, and maximal bending moment is 1036kN.m, and the maximum pull in the high strength drag-line is 562.7kN; The maximum vertical amount of deflection of two bridging ideotype tension string beam structures is 0.105m, the greatest axis power 443kN in the rigidity compressed member, and maximal bending moment 789.5kN.m, the maximum internal force in the high strength drag-line is 425kN.In this example, the maximum displacement continuity is opened the single relatively Pin tension string beam structure of string beam and is reduced 34.38%, and compressed member greatest axis power reduces 19.9%, and maximal bending moment reduces 23.8%, and high-strength drag-line internal force reduces 24.5%.Can find out that from example adopting identical cross-sectional sizes and ratio of rise to span, under the space situation of crossing over identical span, the continuous type tension string beam structure is opened string beam system, more reasonable stress with respect to single span.
Claims (6)
1, a kind of continuous type tension string beam structure, it is characterized in that comprising camber beam (1), curve rope (2), strut (3), ground tackle (4), in the middle of being shaped as of camber beam (1) is trough, both sides are waveform curves of crest, in the middle of being shaped as of curve rope (2) is crest, both sides are waveform curves of trough, the intermediate peak of the middle trough of camber beam (1) and both sides crest and curve rope (2), be provided with strut (3) between the trough of both sides, curve rope (2) two ends are anchored on the camber beam (1) by ground tackle (4).
2, a kind of continuous type tension string beam structure according to claim 1 is characterized in that described camber beam (1) is latticed members or real abdomen formula member.
3, a kind of continuous type tension string beam structure according to claim 2 is characterized in that described latticed members or real abdomen formula member are stiffening member.
4, a kind of continuous type tension string beam structure according to claim 1 is characterized in that described curve rope (2) is compressor wire rope or prestress wire.
5, a kind of continuous type tension string beam structure according to claim 1 is characterized in that described strut (3) is a compression member.
6, a kind of continuous type tension string beam structure according to claim 1 is characterized in that being connected between described strut (3) and camber beam (1), the curve rope (2) adopts to be articulated and connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201202956U CN201236413Y (en) | 2008-06-24 | 2008-06-24 | Continuous beam string structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201202956U CN201236413Y (en) | 2008-06-24 | 2008-06-24 | Continuous beam string structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236413Y true CN201236413Y (en) | 2009-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNU2008201202956U Expired - Fee Related CN201236413Y (en) | 2008-06-24 | 2008-06-24 | Continuous beam string structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877657A (en) * | 2012-10-15 | 2013-01-16 | 中铁十局集团建筑工程有限公司 | Large-span H-shaped plane composite structure beam string upper-air cable replacement construction method |
| CN103276797A (en) * | 2013-06-26 | 2013-09-04 | 南京工业大学 | Cable and variable-section beam-arch composite structure system |
| CN115787921A (en) * | 2023-02-13 | 2023-03-14 | 北京市建筑工程研究院有限责任公司 | Wind-resisting beam string structure with high durability and construction method thereof |
-
2008
- 2008-06-24 CN CNU2008201202956U patent/CN201236413Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877657A (en) * | 2012-10-15 | 2013-01-16 | 中铁十局集团建筑工程有限公司 | Large-span H-shaped plane composite structure beam string upper-air cable replacement construction method |
| CN103276797A (en) * | 2013-06-26 | 2013-09-04 | 南京工业大学 | Cable and variable-section beam-arch composite structure system |
| CN115787921A (en) * | 2023-02-13 | 2023-03-14 | 北京市建筑工程研究院有限责任公司 | Wind-resisting beam string structure with high durability and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20140624 |
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| EXPY | Termination of patent right or utility model |