CN2753839Y - Prestressed steel-structure multiple stretched-draw ground tackle - Google Patents
Prestressed steel-structure multiple stretched-draw ground tackle Download PDFInfo
- Publication number
- CN2753839Y CN2753839Y CN 200420115739 CN200420115739U CN2753839Y CN 2753839 Y CN2753839 Y CN 2753839Y CN 200420115739 CN200420115739 CN 200420115739 CN 200420115739 U CN200420115739 U CN 200420115739U CN 2753839 Y CN2753839 Y CN 2753839Y
- Authority
- CN
- China
- Prior art keywords
- intermediate plate
- interleaved
- groove
- ground tackle
- steel structure
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000004873 anchoring Methods 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Abstract
The utility model relates to a multiple-time tensioning anchor device for a prestressed steel structure, which is used for the construction of tensioning a prestressed steel structure for many times. The utility model solves the problems that in the process of tensioning for many times, dyssymmetry is easy to generate, sheets are not synchronously positioned, and anchoring degree is not convenient to control existing in a multiple-sheet type anchoring device with clamping sheets. The utility model comprises an anchoring sleeve and clamping sheets, and is characterized in that an annular clamping sheet (5) with cross-staggered grooves, a spring (6) and a screw-thread sealing ring (7) are orderly put in the anchoring sleeve (4); the clamping sheet is formed by that a truncated cone-shaped inner hole of which the generatrix inclination angle beta ranges from 87 DEG to 90 DEG is arranged at the center of a truncated cone of which the generatrix inclination angle a ranges from 60 DEG to 85 DEG; a first groove is downwards and vertically grooved from an upper position along a diameter of the truncated cone-shaped surface, the depth of the first groove ranges from two thirds to five sixths of the height of the truncated cone, and the width of the first groove ranges from one sixth to two thirds of the minimum diameter of the inner hole; a same second groove perpendicular to the first groove is upwards and vertically grooved from the bottom of the truncated cone; the inner wall of the inner hole is rough, and the outer wall of the inner hole is smooth; the inner diameter and the inclination angle of the anchoring sleeve (4) are determined according to the dimension of the clamping sheet, and the inner wall of the anchoring sleeve is smooth. Simultaneously, a hollow sphere node of a prestressed steel structure, which comprises the before-mentioned anchoring device, is provided and the utility model can be practically used for engineering.
Description
Technical field
The utility model belongs to prestressed stretch-draw ground tackle field, particularly at Construction of Prestressed Steel Structures, proposes a kind of repeatedly tension ground tackle, is applicable to repeatedly stretching construction of various prestressed steel structures.
Background technology
According to the prestressed steel structure theory, the repeatedly alternation procedure of loading → stretch-draw → loading → stretch-draw → loading is adopted in the Multiple Pre-Stressed Steel Structure construction.Steel work is carried out load and the prestressing force classification repeatedly applies, can reduce the bearing horizontal loading, avoid the rod member stress excessive and destroy, utilize the intensity amplitude of material more fully, produce best prestressing force effect, significantly save steel using amount, increase economic efficiency.The prestressing force pull end needs to carry out anchoring behind each cable stretching, common multiple-piece intermediate plate ground tackle is to carry out anchoring by intermediate plate at present, makes the intermediate plate carrying magnetic, during construction the multi-disc intermediate plate is wrapped in the prestressed cable outside by magnetic.But in stretching process repeatedly, it is asynchronous in place and be not easy to control problems such as anchoring degree that multiple-piece intermediate plate ground tackle is easy to generate off normal, each sheet.
Summary of the invention
The utility model repeatedly being not easy shortcoming in place synchronously, that inconvenience is installed in the stretching process, is not easy to control the problem of anchoring degree at the multiple-piece intermediate plate.
The utility model provides repeatedly tension ground tackle of a kind of prestressed steel structure, include anchor cover, intermediate plate, it is characterized in that, this ground tackle is to place the interleaved grooved ring shape of cross intermediate plate 5, spring 6 and thread seal ring 7 successively in anchor cover 4, and thread seal ring 7 closely connects and composes by screw thread with anchor cover 4; The interleaved grooved ring shape of above-mentioned cross intermediate plate 5 is to be that 60 °-85 ° round platform center is that 87 °-90 ° truncated cone-shaped endoporus forms hollow round platform from opening a bus angle of inclination beta to round table surface at the bottom of the round platform a bus inclination alpha, this endoporus minimum diameter is than the big 0-2mm of external diameter of prestressed cable, let droop along a diameter of round table surface from the top of above-mentioned hollow round platform then and head straight for a groove, groove depth is the 2/3-5/6 of frustum cone height, groove width is the 1/6-2/3 that above-mentioned endoporus minimum diameter is the round table surface aperture, upwards vertically opens the groove of a same degree of depth and width and forms the interleaved grooved ring shape of cross intermediate plate 5 from the bottom of round platform on perpendicular to the direction of this groove again; Its inner hole wall is coarse, and outer wall is smooth; Anchor overlaps 4 internal diameters and the inclination angle determines that according to the interleaved grooved ring shape of cross intermediate plate 5 sizes anchor overlaps 4 inner wall smooths.
The truncated cone-shaped endoporus inwall of the interleaved grooved ring shape of above-mentioned cross intermediate plate 5 is established screw thread.
The interleaved trench bottom of cross of the interleaved grooved ring shape of above-mentioned cross intermediate plate 5 is a circular arc.
Increased the elastic deformability of the interleaved grooved ring shape of cross intermediate plate 5 by annular intermediate plate fluting.The inner hole wall of the interleaved grooved ring shape of cross intermediate plate 5 is coarse, for example is provided with screw thread, can increase the snap-in force of intermediate plate to rope, increases the reliability and stability of ground tackle.And it is in place that the multi-disc intermediate plate is become the intermediate plate ring intermediate plate of being more convenient for.
Thread seal ring 7 reduces the retraction of prestressed cable 3 in the time of can making it in anchoring for when the stretch-draw the interleaved grooved ring shape of cross intermediate plate 5 certain pressures by spring 6, thereby reduces loss of prestress.Change the degree of tightness of springs 6 by rotary screwing thread joint ring 7, the anchoring degree that can regulate intermediate plate easily when stretch-draw repeatedly reduces the loss of prestress of repeatedly stretch-draw, is fit to very much the repeatedly stretching construction of prestressed steel structure, and improves its reliability.
The utility model has also designed a kind of repeatedly prestressed steel structure hollow ball node of tension ground tackle of above-mentioned prestressed steel structure that contains, by the above-mentioned ground tackle that is fixed in hollow ball node 1 stretch-draw end, be welded on the inner and prestressed cable 3 that anchor that pass sleeve pipe 2 and above-mentioned ground tackle by the sleeve pipe 2 of the stretch-draw end points and the centre of sphere, successively overlaps 4 centers, the interleaved grooved ring shape of cross intermediate plate 5 truncated cone-shaped endoporus, spring 6 axle center and thread seal ring 7 of hollow ball node 1 and constitute.
Repeatedly tension ground tackle connects together with hollow ball node 1; be provided with sleeve pipe 2 in hollow ball node 1 the inside, not only be convenient to connecting of prestressed cable 3, sleeve pipe 2 also can be protected prestressed cable 3; simultaneously hollow ball node 1 is played the node booster action, be suitable for connecting and constructing of prestressed cable.The prestressed steel structure hollow ball node that will contain repeatedly tension ground tackle is applied to multiple prestress steel structure shock-proof sliding estastic support seat stretch-draw end, has important engineering practical value and application prospects.
Description of drawings
Fig. 1 is repeatedly the front view that tension ground tackle is connected in hollow ball node, and tension ground tackle has repeatedly partly been done partial sectional view.Among Fig. 1,1. hollow ball node, 2. sleeve pipe, 3. prestressed cable, 4. anchor cover, the 5. interleaved grooved ring shape of cross intermediate plate, 6. spring, 7. thread seal ring,
Fig. 2 to Fig. 4 is the three-view diagram of the interleaved grooved ring shape of cross intermediate plate.Wherein, Fig. 2 is a front view, and Fig. 3 is a lateral view, and Fig. 4 is a vertical view.
The specific embodiment
Describe one embodiment of the present of invention in detail below in conjunction with accompanying drawing, following long measure is millimeter.
With reference to Fig. 2, prestressed cable 3 external diameters of intending stretch-draw are 28, make the interleaved grooved ring shape of cross intermediate plate 5 according to the size of prestressed cable 3 earlier.At a base diameter 92.52, top diameter 39, high by 100, bus inclination angle d is that a top diameter 29, base diameter 32.48 are drawn out in the center of 84 ° steel round platform, high 100 round platform endoporus, the hollow round platform endoporus bus angle of inclination beta that obtains is 89 °, and the end face in hollow round platform is opened one wide 8 dark 80 groove vertically downward along a diameter A, does not ftracture bottom in use slotting for guaranteeing the interleaved grooved ring shape of cross intermediate plate 5, to slot the bottom as circular arc, avoid stress to concentrate.Upwards vertically open the groove of a same degree of depth and width again on perpendicular to the direction of A from the bottom of hollow round platform, bottom land is similarly circular arc, for increasing the friction of the interleaved grooved ring shape of cross intermediate plate 5 and prestressed cable 3, inner hole wall can be set as saw-tooth thread, for the control screw thread to the biting of rope, can increase the facewidth of saw-tooth thread, the outer wall of hollow round platform is smooth, thereby obtains the interleaved grooved ring shape of a cross intermediate plate 5.Make anchor cover 4 according to the size of the interleaved grooved ring shape of cross intermediate plate 5 again, the center of the stainless steel cylinder of a diameter 120 high 150 is opened the cylindrical bore of a diameter 93 high 40 downwards from the end face center, then open the rounding platform hole of a upper end diameter 93 lower end diameter 32.5 high 110 downwards, then this bus inclination angle, rounding platform hole is identical with the round platform bus inclination angle of the interleaved grooved ring shape of cross intermediate plate 5, makes screw thread then on the inwall of the cylindrical bore of stainless steel cylinder.Make thread seal ring 7 at last, outer wall can be opened the cylindrical hole of internal diameter 40 with high 50 the bolt center that cylindrical bore closely is threaded.Spring 6 external diameters 85 internal diameters 83 pitches 5 are high by 20, and material can be selected low manganese spring steel for use.
At the hollow ball node 1 inner sleeve pipe 2 of crossing the centre of sphere and stretch-draw end points welding Φ 38 * 4, on the anchor cover 4 stretch-draw end hollow ball node 1 of sleeve pipe 2 of Φ 38 * 4 that has been fixed in interior welds, prestressed cable 3 is passed sleeve pipe 2 successively, anchor cover 4, be placed on the interleaved grooved ring shape of the cross intermediate plate 5 in the anchor cover 4, follow mounting spring 6 and rotary screwing thread joint ring 7, carry out repeatedly stretch-draw of prestressing force, each stretch-draw finishes back threaded together joint ring 7, the loss of prestress of minimizing before next stretch-draw, when next stretch-draw begins, loosen thread seal ring 7, reduce the frictional resistance of intermediate plate, wait stretch-draw to finish and tighten again rope.
Be applied to the situation of other prestressed stretch-draw for tension ground tackle repeatedly, the embodiment that the anchor cover is fixed in behind the stretch-draw end is the same.
Claims (4)
1. prestressed steel structure tension ground tackle repeatedly, include anchor cover, intermediate plate, it is characterized in that, this ground tackle is to place the interleaved grooved ring shape of cross intermediate plate (5), spring (6) and thread seal ring (7) in anchor cover (4) successively, and thread seal ring (7) closely connects and composes by screw thread with anchor cover (4); The interleaved grooved ring shape of above-mentioned cross intermediate plate (5) is to be that 60 °-85 ° round platform center is that 87 °-90 ° truncated cone-shaped endoporus forms hollow round platform from opening a bus angle of inclination beta to round table surface at the bottom of the round platform a bus inclination alpha, this endoporus minimum diameter is than the big 0-2mm of external diameter of prestressed cable, let droop along a diameter of round table surface from the top of above-mentioned hollow round platform then and head straight for a groove, groove depth is the 2/3-5/6 of frustum cone height, groove width is the 1/6-2/3 that above-mentioned endoporus minimum diameter is the round table surface aperture, upwards vertically opens the groove of a same degree of depth and width and forms the interleaved grooved ring shape of cross intermediate plate (5) from the bottom of round platform on perpendicular to the direction of this groove again; Its inner hole wall is coarse, and outer wall is smooth; Anchor cover (4) inner wall smooth.
2. press repeatedly tension ground tackle of the described prestressed steel structure of claim 1, it is characterized in that the truncated cone-shaped endoporus inwall of the interleaved grooved ring shape of cross intermediate plate (5) is established screw thread.
3. press repeatedly tension ground tackle of the described prestressed steel structure of claim 1, it is characterized in that the interleaved trench bottom of cross of the interleaved grooved ring shape of cross intermediate plate (5) is a circular arc.
4. one kind contains the repeatedly prestressed steel structure hollow ball node of tension ground tackle of the described prestressed steel structure of claim 1, by the above-mentioned ground tackle that is fixed in hollow ball node (1) stretch-draw end, to be welded on hollow ball node (1) inner and by the sleeve pipe (2) of the stretch-draw end points and the centre of sphere, pass prestressed cable (3) formation of anchor cover (4) center, the interleaved grooved ring shape of cross intermediate plate (5) truncated cone-shaped endoporus, spring (6) axle center and the thread seal ring (7) of sleeve pipe (2) and above-mentioned ground tackle successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115739 CN2753839Y (en) | 2004-11-19 | 2004-11-19 | Prestressed steel-structure multiple stretched-draw ground tackle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115739 CN2753839Y (en) | 2004-11-19 | 2004-11-19 | Prestressed steel-structure multiple stretched-draw ground tackle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2753839Y true CN2753839Y (en) | 2006-01-25 |
Family
ID=35925947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420115739 Expired - Fee Related CN2753839Y (en) | 2004-11-19 | 2004-11-19 | Prestressed steel-structure multiple stretched-draw ground tackle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2753839Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352540A (en) * | 2013-07-12 | 2013-10-16 | 东南大学 | Anchoring device adopting spiral slotting clamping piece for prestressed FRP (Fiber Reinforced Polymer) cables |
| CN103352538A (en) * | 2013-07-12 | 2013-10-16 | 东南大学 | Prestress fiber reinforced polymer cable anchoring device with auxiliary clamp rings |
| CN103352539A (en) * | 2013-07-12 | 2013-10-16 | 东南大学 | Prestress fiber reinforced polymer cable anchoring device adopting grooved clamping piece |
| CN105971288A (en) * | 2016-07-06 | 2016-09-28 | 中国京冶工程技术有限公司 | Integrated clamping piece type anchor structure device and assembling method thereof |
-
2004
- 2004-11-19 CN CN 200420115739 patent/CN2753839Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352540A (en) * | 2013-07-12 | 2013-10-16 | 东南大学 | Anchoring device adopting spiral slotting clamping piece for prestressed FRP (Fiber Reinforced Polymer) cables |
| CN103352538A (en) * | 2013-07-12 | 2013-10-16 | 东南大学 | Prestress fiber reinforced polymer cable anchoring device with auxiliary clamp rings |
| CN103352539A (en) * | 2013-07-12 | 2013-10-16 | 东南大学 | Prestress fiber reinforced polymer cable anchoring device adopting grooved clamping piece |
| CN105971288A (en) * | 2016-07-06 | 2016-09-28 | 中国京冶工程技术有限公司 | Integrated clamping piece type anchor structure device and assembling method thereof |
| CN105971288B (en) * | 2016-07-06 | 2018-04-06 | 中国京冶工程技术有限公司 | Integral type intermediate plate type anchor device structure device and its assemble method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4673309A (en) | Method and apparatus for anchoring cables of high-tensile steel wire | |
| CN2753839Y (en) | Prestressed steel-structure multiple stretched-draw ground tackle | |
| CN109629444B (en) | Anchor connection structure behind basket is hung in municipal bridge engineering construction | |
| CN212897611U (en) | Template opposite-pulling reinforcing device | |
| CN201011087Y (en) | Hidden conical telescopic anchoring member | |
| CN106593052A (en) | Three-dimensional vibration isolation support seat with adjustable vertical initial rigidity | |
| CN206707050U (en) | A kind of novel earthquake-proof steel structure assembly | |
| CN105626642A (en) | Anti-seismic anchor bolt | |
| CN205134311U (en) | Resistance to compression stake | |
| CN212613025U (en) | Clamping structure for connecting I-shaped steel | |
| CN107630911A (en) | A kind of check bolt | |
| CN112503082A (en) | Flange bolt with locking elastic sheet | |
| CN209923922U (en) | Anchor device | |
| CN201649748U (en) | Storage tank and container bottom ring wallboard verticality adjusting supporting device | |
| CN214935206U (en) | Height-adjustable escalator intermediate support device | |
| CN2300754Y (en) | Upset bolt | |
| CN2823638Y (en) | Expansion pipe for expansion screw | |
| CN211421402U (en) | Building structure design wall column base quick connecting device | |
| CN2761733Y (en) | Twisted wire anchored antislid apparatus | |
| CN220228101U (en) | Hoop with adjustable height | |
| CN215670541U (en) | 2400 MPa-level re-tensioning anchor assembly | |
| CN205709591U (en) | The novel flexible attachment device of derrick crane | |
| CN209958750U (en) | Civil air defense wall body duct hole plugging device | |
| CN220643905U (en) | Anchoring structure of pier beam steel bar | |
| CN220057934U (en) | Pressure molded line pole stretch-draw anchor formula is anticorrosive impervious prestressing force anti-floating stock for building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060125 Termination date: 20101119 |