CN1877036A - Large-span large-cantilever roofing cable-stayed type double-layer prestressed steel grid roof structure - Google Patents
Large-span large-cantilever roofing cable-stayed type double-layer prestressed steel grid roof structure Download PDFInfo
- Publication number
- CN1877036A CN1877036A CN 200610200672 CN200610200672A CN1877036A CN 1877036 A CN1877036 A CN 1877036A CN 200610200672 CN200610200672 CN 200610200672 CN 200610200672 A CN200610200672 A CN 200610200672A CN 1877036 A CN1877036 A CN 1877036A
- Authority
- CN
- China
- Prior art keywords
- steel
- cable
- prestressed
- roof structure
- type double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
The invention relates to a large-span roof incline dual-layer pre-stress steel net cover, which comprises a dual-layer steel net support (1); the upper arc node of the base of steel net support (1) is arranged with support (2); the top of support (2) is arranged with crown block (3); the low arc node at the middle of steel net support (1) is arranged with force sensor (5); two ends of pre-stress steel cable (4) are through the crown block (3) and force sensor (5), to be fixed on the low arc node of suspension net support of steel net support (1). The invention can be used in the roof cover whose span is between 100m to 160m, to improve the rigidity of steel net support, reduce the steel consumption and reduce the cost.
Description
Technical field:
The present invention relates to a kind of roof structure, particularly a kind of large span (100m≤L≤160m) encorbelment greatly (roofing cable-stayed type double-layer prestressed steel grid roof structure of L 〉=12m).
Background technology:
To large span (100m≤L≤160m) encorbelment greatly (and the heavy construction of L 〉=12m), when its roof system was designed to flat roof deck, because span is big, if adopt general dull and stereotyped steel mesh frame, the rack height was higher, the diagonal web member length of rack is long, causes steel using amount to strengthen; For reducing steel using amount, at present, large span, the heavy construction roof system of encorbelmenting are greatly generally adopted the compound steel rack, to reduce diagonal web member length, but the compound steel rack has the neutral line of one deck in structure, and is almost nil to the contribution of structure bending rigidity, and neutral line grid rod member and node increase are about 1/3 of double layer grid, its steel using amount is big, and has been confirmed by engineering practice.
Summary of the invention:
The objective of the invention is to: a kind of steel using amount, reduction construction costs of both can having reduced is provided, can make the large-span large-cantilever steel grid roof become the large-span large-cantilever roofing cable-stayed type double-layer prestressed steel grid roof structure of form of structure in the cards again, to solve the problem that prior art exists.
The present invention is achieved in that it comprises the clad steel rack, the supporting of the steel mesh frame node that winds up is provided with bracing frame, the top of bracing frame is provided with fixed pulley, the middle part lower-chord panel point of steel mesh frame is provided with load transfer device, after fixed pulley and load transfer device are passed in the two ends of prestressed cable, be separately fixed on the lower-chord panel point of the rack of encorbelmenting greatly of steel mesh frame.
The prestressed cable pairwise orthogonal is arranged in the steel mesh support body, and the spacing between the prestressed cable of one of them direction is 1～2 grid, and the spacing between the prestressed cable of another direction of quadrature is 3～4 grids with it.
The steel mesh frame is connected and composed by the quadrangular pyramid of just putting.
Load transfer device is made of steel case, the pull bar that is contained in the fixed pulley in the steel case and is fixed on steel case bottom, and the other end of pull bar is fixed on the central authorities of four diagonal web members of quadrangular pyramid lower edge ball node.
The load transfer device of two orthogonal directions is contour, and the horizontal segment of the prestressed cable of two orthogonal directions is not collided, not interlock.
(100m≤L＜160m) also has the roof structure of the double-deck space grid structure of encorbelmenting greatly at large span specially in the present invention, compared with prior art, it not only can increase substantially the integral rigidity of steel mesh frame, but also can effectively reduce steel using amount, reduces construction costs.
Description of drawings:
Accompanying drawing 1 is a plane structure schematic diagram of the present invention;
Accompanying drawing 2 is the A-A sectional view of accompanying drawing 1;
Accompanying drawing 3 is the B-B sectional view of accompanying drawing 1;
Accompanying drawing 4 is the structural representation of load transfer device of the present invention.
The specific embodiment:
Embodiments of the invention: as shown in Figure 1, it comprises the double-layer plate shaped steel rack 1 that is connected and composed by the quadrangular pyramid of just putting, the supporting of steel mesh frame 1 node that winds up is provided with bracing frame 2, and the height of bracing frame 2 needs the cable prestressing size according to steel mesh frame 1, and the back is determined as calculated; The top of bracing frame 2 is provided with fixed pulley 3, quadrature is provided with four load transfer devices 5 on the lower-chord panel point of the middle part of steel mesh frame 1, each load transfer device 5 is made of steel case 6, the pull bar 8 that is contained in the fixed pulley 7 in the steel case 6 and is fixed on steel case 6 bottoms, and the other end of pull bar 8 is fixed on central authorities' (as shown in Figure 4) of four diagonal web members of quadrangular pyramid lower edge ball node.Prestressed cable 4 pairwise orthogonals are arranged in steel mesh frame 1 body, spacing between two prestressed cables 4 vertical with the span direction is 1～2 grid, spacing between two prestressed cables 4 of another span direction is 3～4 grids, the two ends, fixed pulley 7 back that every prestressed cable 4 passes fixed pulley 3 and load transfer device 5 are fixed on the lower-chord panel point of the rack of encorbelmenting greatly of steel mesh frame 1, and the prestressed cable 4 at load transfer device 5 places turns to and is horizontal segment.The load transfer device 5 of two orthogonal directions is contour, and the horizontal segment of the prestressed cable 4 of two orthogonal directions is not collided, not interlock.
The present invention is provided with bracing frame 2 by the node that winds up in the supporting of steel mesh frame 1, prestressed cable 4 horizontal segments and oblique line section angle are multiplied, then load transfer device 5 also is multiplied to steel mesh frame 1 top active force, prestressing effect is obvious, prestressed cable 4 outside oblique cords are anchored in the lower-chord panel point of encorbelmenting greatly, during the prestress forming attitude, the anchor point horizontal component makes the 1 lower chord precompressed of steel mesh frame, its vertical force component that makes progress has the improvement stressed effect of encorbelmenting greatly, and in prestressing force " one-tenth kenel ", steel mesh frame 1 each rod member internal force is reverse with " load attitude " steel mesh frame 1 each bar internal force overwhelming majority, can reduce steel mesh frame 1 each rod member internal force significantly, reduce steel using amount, improve the rigidity of structure.
The lower-chord panel point anchor point of encorbelmenting greatly of load transfer device 5 positions and prestressed cable 4 is equivalent to the elastomeric bearing point of steel mesh frame 1 at this position among the present invention, can increase substantially the integral rigidity of steel mesh frame 1, make the conventional steel mesh frame of the aspect ratio height of clad steel rack 1 descend 25～35%, effectively save depth of building, reduce steel using amount.The present invention is by being located at oblique cord position, bracing frame 2 both sides when setting up prestressing force, and " the spiral tensioner " of the positive and negative screw thread that adopts as the power department tension cable realize, and by calculating the stretching force of determining to draw behind the rotating cycle cable wire.
Claims (5)
1. large-span large-cantilever roofing cable-stayed type double-layer prestressed steel grid roof structure, it comprises clad steel rack (1), it is characterized in that: the bearing of steel mesh frame (1) node that winds up is provided with bracing frame (2), the top of bracing frame (2) is provided with fixed pulley (3), the middle part lower-chord panel point of steel mesh frame (1) is provided with load transfer device (5), after fixed pulley (3) and load transfer device (5) are passed in the two ends of prestressed cable (4), be separately fixed on the lower-chord panel point of the rack of encorbelmenting greatly of steel mesh frame (1).
2. large-span large-cantilever roofing cable-stayed type double-layer prestressed steel grid roof structure according to claim 1, it is characterized in that: prestressed cable (4) pairwise orthogonal is arranged in steel mesh frame (1) body, spacing between the prestressed cable of one of them direction (4) is 1～2 grid, and the spacing between the prestressed cable of another direction of quadrature (4) is 3～4 grids with it.
3. large-span large-cantilever roofing cable-stayed type double-layer prestressed steel grid roof structure according to claim 1 is characterized in that: steel mesh frame (1) is connected and composed by the quadrangular pyramid of just putting.
4. large-span large-cantilever roofing cable-stayed type double-layer prestressed steel grid roof structure according to claim 1, it is characterized in that: load transfer device (5) by steel case (6), be contained in the fixed pulley (7) in the steel case (6) and be fixed on pull bar (8) formation of steel case (6) bottom, the other end of pull bar (8) is fixed on the central authorities of four diagonal web members of quadrangular pyramid lower edge ball node.
5. large-span large-cantilever roofing cable-stayed type double-layer prestressed steel grid roof structure according to claim 1 and 2, it is characterized in that: the load transfer device of two orthogonal directions (5) is contour, and the horizontal segment of the prestressed cable of two orthogonal directions (4) is not collided, not interlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006102006722A CN100353013C (en) | 2006-07-07 | 2006-07-07 | Large-span large-cantilever roofing cable-stayed type double-layer prestressed steel grid roof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006102006722A CN100353013C (en) | 2006-07-07 | 2006-07-07 | Large-span large-cantilever roofing cable-stayed type double-layer prestressed steel grid roof structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1877036A true CN1877036A (en) | 2006-12-13 |
| CN100353013C CN100353013C (en) | 2007-12-05 |
Family
ID=37509573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006102006722A Expired - Fee Related CN100353013C (en) | 2006-07-07 | 2006-07-07 | Large-span large-cantilever roofing cable-stayed type double-layer prestressed steel grid roof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100353013C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100591877C (en) * | 2008-12-23 | 2010-02-24 | 徐州中煤钢结构建设有限公司 | Superlarge span double-net rack vault construction process |
| CN102235055A (en) * | 2010-04-26 | 2011-11-09 | 湖南大学 | Stayed prestressed orthogonal space tube truss steel grid structure and manufacturing method thereof |
| CN102235030A (en) * | 2010-04-26 | 2011-11-09 | 湖南大学 | Extra-large-span cross-section-variable pre-stressed normally placed evacuating quadrangular pyramid space grid and manufacturing method thereof |
| CN102677773A (en) * | 2012-05-23 | 2012-09-19 | 中天建设集团有限公司 | Two-way regulation supporting seat |
| CN104278782A (en) * | 2014-10-20 | 2015-01-14 | 天津大学建筑设计研究院 | Spherical suspended-dome structure applicable to non-circular buildings |
| CN104631621A (en) * | 2015-02-15 | 2015-05-20 | 中国建筑西南设计研究院有限公司 | Saddle-shaped cable carrier single-layer latticed shell structure |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5355641A (en) * | 1990-11-02 | 1994-10-18 | Weidlinger Associates, Inc. | Triangulated cable dome with retractable roof |
| DE19831026B4 (en) * | 1998-07-10 | 2005-09-01 | Josef Gartner Gmbh | Carrying rope construction |
| CN2432277Y (en) * | 2000-07-15 | 2001-05-30 | 张毅刚 | Vault with cable bearing shell |
| CN1393607A (en) * | 2001-07-03 | 2003-01-29 | 浙江大学 | Method for integrally lifting reticulated shell 'mechanism-structure' of column surface of jacking construction method |
| CN1164841C (en) * | 2002-04-11 | 2004-09-01 | 王立洪 | Very large span spatial strcture |
| CN1195136C (en) * | 2003-01-15 | 2005-03-30 | 中国建筑第八工程局中南公司 | Construction method for large overhead cable-steel structure system |
| CN2756731Y (en) * | 2004-11-11 | 2006-02-08 | 徐国彬 | Composite cable tray roof structure |
-
2006
- 2006-07-07 CN CNB2006102006722A patent/CN100353013C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100591877C (en) * | 2008-12-23 | 2010-02-24 | 徐州中煤钢结构建设有限公司 | Superlarge span double-net rack vault construction process |
| CN102235055A (en) * | 2010-04-26 | 2011-11-09 | 湖南大学 | Stayed prestressed orthogonal space tube truss steel grid structure and manufacturing method thereof |
| CN102235030A (en) * | 2010-04-26 | 2011-11-09 | 湖南大学 | Extra-large-span cross-section-variable pre-stressed normally placed evacuating quadrangular pyramid space grid and manufacturing method thereof |
| CN102235030B (en) * | 2010-04-26 | 2012-12-05 | 湖南大学 | Extra-large-span cross-section-variable pre-stressed normally placed evacuating quadrangular pyramid space grid and manufacturing method thereof |
| CN102235055B (en) * | 2010-04-26 | 2013-07-03 | 湖南大学 | Stayed prestressed orthogonal space tube truss steel grid structure and manufacturing method thereof |
| CN102677773A (en) * | 2012-05-23 | 2012-09-19 | 中天建设集团有限公司 | Two-way regulation supporting seat |
| CN102677773B (en) * | 2012-05-23 | 2014-03-19 | 中天建设集团有限公司 | Two-way regulation supporting seat |
| CN104278782A (en) * | 2014-10-20 | 2015-01-14 | 天津大学建筑设计研究院 | Spherical suspended-dome structure applicable to non-circular buildings |
| CN104631621A (en) * | 2015-02-15 | 2015-05-20 | 中国建筑西南设计研究院有限公司 | Saddle-shaped cable carrier single-layer latticed shell structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100353013C (en) | 2007-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2797485Y (en) | Honeycomb steel skeleton concrete column | |
| CN1877036A (en) | Large-span large-cantilever roofing cable-stayed type double-layer prestressed steel grid roof structure | |
| CN102235055B (en) | Stayed prestressed orthogonal space tube truss steel grid structure and manufacturing method thereof | |
| CN100453753C (en) | Four-point supporting large-span flat grid shell roof structure with prestressed space tube truss | |
| CN2835408Y (en) | Cable-truss-supported multi-span continuous orthogonal saddle-shape cable net | |
| CN102235030B (en) | Extra-large-span cross-section-variable pre-stressed normally placed evacuating quadrangular pyramid space grid and manufacturing method thereof | |
| CN1877039A (en) | Large-span periphery triangular pyramid simple-supporting and inside folding prestressed steel grid structure | |
| CN200964645Y (en) | Large span large cantilever roof oblique-pulling type double-layer prestress steel grid roof | |
| CN114584046A (en) | Photovoltaic flexible support | |
| CN101906871A (en) | Simple bearing type template truss | |
| CN101922231A (en) | Simple strength bearing type template truss | |
| CN202509667U (en) | Combined steel bar truss floor bearing plate | |
| CN108252216A (en) | The mounting structure of strand in multi-span suspension bridges cable saddle | |
| CN100453752C (en) | Large-span periphery simple-supporting and inside folding prestressed steel grid structure | |
| CN2697188Y (en) | Saddle shaped glass daylight top supported by cable net node | |
| CN1877037A (en) | Large-span large-column distance quasi-ribbed floor type prestressed steel grid roof structure | |
| CN201328275Y (en) | Greenhouse with tension structure | |
| CN201074417Y (en) | Tower for two-loop common tower circuit of 220kV and 100kV | |
| CN201753475U (en) | Steel grid structure of strut-framed prestress orthogonal space pipe truss | |
| CN201722773U (en) | Super-long span variable cross-section prestress normally-placed evacuating quadrangular pyramid net rack | |
| CN102140775A (en) | Girder string continuous cable stayed bridge | |
| CN208183535U (en) | The mounting structure of strand in multi-span suspension bridges cable saddle | |
| CN215758853U (en) | Large-span assembly type cable truss structure for covering channel | |
| CN201722778U (en) | Super-long span variable cross-section double-layer and three-layer prestressed ribbed beam type net rack | |
| CN201502119U (en) | Suspended cylindrical shell structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20071205 Termination date: 20160707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |