CN2637612Y - Anchoring steel twisted wire connector - Google Patents
Anchoring steel twisted wire connector Download PDFInfo
- Publication number
- CN2637612Y CN2637612Y CN 03277012 CN03277012U CN2637612Y CN 2637612 Y CN2637612 Y CN 2637612Y CN 03277012 CN03277012 CN 03277012 CN 03277012 U CN03277012 U CN 03277012U CN 2637612 Y CN2637612 Y CN 2637612Y
- Authority
- CN
- China
- Prior art keywords
- connecting cylinder
- cylinder
- steel strand
- ground tackle
- conical surface
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 52
- 239000010959 steel Substances 0.000 title claims abstract description 52
- 238000004873 anchoring Methods 0.000 title description 3
- 239000011513 prestressed concrete Substances 0.000 abstract description 4
- 238000005192 partition Methods 0.000 abstract 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 22
- 238000010276 construction Methods 0.000 description 17
- 210000003205 muscle Anatomy 0.000 description 9
- 239000004567 concrete Substances 0.000 description 6
- 238000005266 casting Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 230000011218 segmentation Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 210000002435 tendon Anatomy 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000015895 biscuits Nutrition 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000002910 structure generation Methods 0.000 description 1
Images
Abstract
An anchor type steel strand connector realizes the connection between two steel strands by a connecting cylinder and two groups of steel clamps. The inner wall of the middle section of the connecting cylinder is a column with equal diameter and matches with the outer circumference surface of a position limiting top pipe; the inner wall of the position limiting top pipe is a column with a position limiting partition board in the middle. The inner wall of one end of the connecting cylinder is provided with thread that matches the outer thread of the inner conical surface solenoid. The inner wall of the inner conical surface solenoid matches with wedge clamps. The other end of the connecting cylinder has a finish conical hole which matches with the wedge clamps and the diameter of the outer end of the finish conical hole is small, while the diameter of the inner end is equal to that of the middle part of the connecting cylinder. The outer circumference of the connecting cylinder is an equal diameter cylinder or unequal diameter cylinder. The outer end of the inner cylinder surface solenoid is hexangular or equal diameter cylinder. The wedge clamp is a two valvulas or three valvulas wedege-shaped clip. As to the bar arrangement of the successive prestressed steel stand, the connector of the utility in a continuous structure of an overlength prestressed concrete can be used to realize step feeding, step stretching, and connecting short prestressed steel strands into longer steel strands.
Description
Technical field
The utility model relates to a kind of wire and connects facility, particularly a kind of stretch-draw of super-length prestressed steel strand continuous reinforcement and fastening means.
Background technology
Along with Building technology constantly develops, building does not stay or stays less the situation of structure (stretching) seam to increase with using upward requirement in recent years, the continuous length of side of part prestressing without bondn structure increases to above hundred meters from the past tens meters, cause occurring more in continuous structure the rough sledding of segmented configuration, the discontinuous presstressed reinforcing steel of subsection tension, use connector to address this problem preferably.Existing connector has one by two sections inner conical surface tubes that profile is identical, and the centre is threaded by tube connector, and the inner conical surface tube is built-in with intermediate plate, is provided with after the intermediate plate to hold out against spring.The continuous muscle of overlength steel strand prestress in the structure seldom uses connector at present, and its reason is that existing connector has following defective: 1, profile is excessive, too much takies the component inside space; 2, the complex structure degree is higher, causes processing cost and product price too high; 3, function singleness, engineering adaptability are relatively poor, can not use by the double as ground tackle.
In super-length prestressed continuous structure, do not use connector can produce following problem:
1, when the prestress reinforcement continuous length is excessive must block the time, stretching construction makes structure generation compressive strain, the high tensile stress district appears after being positioned at the presstressed reinforcing steel ground tackle at structure middle part, easily make structure occur the crack in advance because of applying prestressing force, reduced the actual crack resistance and the durability of structure, and made it not satisfy normal instructions for use.
When 2, blocking presstressed reinforcing steel at the continuous structure middle part, generally adopt parallel overlap joint (beam, board post poured band both sides) or cross-lapping (silo, pilaster both sides, pond) mode arrangement prestress muscle at present in the design, the overlap joint joint construction of similar common steel bar stress, structure is applied produce in succession behind the prestressing force axially draw, compressive stress cancels out each other, lose the prestressing force usefulness that applies, reduced the actual crack resistance of structure.
3, because of blanking error, biscuit tail end and other reason, short material appears in presstressed reinforcing steel unavoidably.Though these short material have certain-length, do not meet design requirement, also can't adjust uses, discarded these short material will increase the presstressed reinforcing steel loss, the increase engineering cost.
Technology contents
The utility model provides a kind of ground tackle formula steel strand connector, solve existing product too much take component inside space, complex structure degree higher, cause processing cost with product price is too high, function singleness, engineering adaptability are relatively poor, problem that can not the use of double as ground tackle.By having the functional unification of single hole ground tackle and single steel strand connector now, can solve segmentation blanking, subsection tension and the short material spreading problem of super-length prestressed steel strand continuous reinforcement in the superstructure.
The technical scheme of the utility model ground tackle formula steel strand connector: connecting cylinder is built-in with intermediate plate, inserts two sections steel hinge lines respectively and realizes connection from connecting cylinder two ends centre bore, it is characterized in that:
Connecting cylinder centre bore stage casing is the equal diameter face of cylinder, and the hole inwall cooperates with spacing push pipe outer circumference surface, and the inwall of spacing push pipe is the face of cylinder, a centre dividing plate of limiting;
At an end of connecting cylinder, the tube inwall is provided with screw thread, matches with the external screw thread of inner conical surface screwed pipe; The inner conical surface screwed pipe is the taper seat inwall, matches with the wedge shape intermediate plate; Inner conical surface screwed pipe and the aperture that is connected anchor ring are in the outer end, and macropore is in the inner;
The inwall of the connecting cylinder other end is a taper seat, cooperates with the wedge shape intermediate plate, and conical bore outer end diameter is little, and inner diameter is identical with tube stage casing internal diameter.
Above-mentioned connecting cylinder periphery is the equal diameter face of cylinder.
Above-mentioned inner conical surface screwed pipe outer end is to wait hexahedron.
Above-mentioned connecting cylinder periphery is the step-like face of cylinder of equal diameter not.
The outer end of above-mentioned inner conical surface screwed pipe is the equal diameter face of cylinder.
Above-mentioned connecting cylinder is having conical bore one side outer circumference surface that two clamping planes are arranged.
Above-mentioned wedge shape intermediate plate is two lobes or three lobe wedge shape intermediate plates.
Beneficial effect: ground tackle formula steel strand connector has adopted the operating principle of single hole strand tapered anchorage, promptly utilize the inner conical surface generation relative displacement that is subjected to drawing steel stranded wire to drive wedge shape intermediate plate and anchor ring, cause two groups of intermediate plates to clamp connected two sections steel strand respectively, realize connecting by connecting cylinder.Although the screw thread place wall thickness of connecting cylinder is less, the co-operation but inner conical surface screwed pipe behind the installation pretension and connecting cylinder barrel can be connected as a single entity, form " combination anchor ring ", make connecting cylinder two ends barrel to the hoop restraint forces of two groups of intermediate plates close value be arranged respectively, and satisfy and install and instructions for use.When finishing the steel strand tension of connection and since the extrusion friction power of intermediate plate inside flank and steel strand, can make two groups of intermediate plate generation relative displacements greater than the force of sliding friction between the intermediate plate periphery conical surface after the drive intermediate plate further sting tight steel strand.When connected two sections steel strand tensions, the connecting cylinder Y bears the relative pulling force that (transmit, balance) transmitted.
Advantage of the present utility model is as follows:
1. reduce the prestress engineering cost
Increase along with presstressed reinforcing steel length in the continuous structure, for remedying the prestressing effect that reduces because of stretching force friction loss increase, will increase the consumption of presstressed reinforcing steel and ground tackle in the design, and relative artificial, stretch-draw expense, and may make in the structure and cross the structure difficulty that mostly occurs because of arrangement of reinforcement.After using connector, cooperate concrete to keep somewhere the ater-casting, the continuous presstressed reinforcing steel of overlength can be realized segmentation cloth muscle, subsection tension, under construction pre-stress effect permanence condition, by reducing the stretch-draw friction loss of each section presstressed reinforcing steel, reduce presstressed reinforcing steel and ground tackle consumption and correlative charges.
2. avoid occurring the stretching construction crack
In super-length prestressed concrete continuous structure, as departure hall, large public building and basement, and have the major diameter barrel shell, silo, pond etc. of buttress, the method arrangement prestress muscle according to segmentation, overlap joint is gone up usually in design at present.After stretching construction made the structure partial compressive deformation, the ground tackle position of non-structural perimeter can produce the high tensile stress district, will reduce the structure Design crack resistance, or occurs the crack at these positions because of stretch-draw, influences structure and normally uses.As use connector, rationally formulating on the basis of stretching plan, segmentation layout, the continuous presstressed reinforcing steel of stretch-draw, can avoid occurring this rough sledding to greatest extent.
3. reduction of erection time
In super-length prestressed concrete continuous structure, when presstressed reinforcing steel length surpasses the ater-casting spacing, each the subregion concrete that presstressed reinforcing steel passes through and the concrete of shutoff ater-casting just can carry out stretching construction after reaching design strength, could stripping and support after the stretch-draw.Because but each subregion concrete pouring shutoff ater-casting just after two months adds that blocking concrete reaches design strength and needs the long period, make template and support turnover period long, be difficult to satisfy construction period.Cooperate the ater-casting to use connector in this case, can accelerate the turnover of template and support, help rationalization's construction and reduce the duration.
4. make things convenient for pre-stress construction
Total length blanking by super-length prestressed muscle will take bigger place, job site, increase the labour cost of arrangement prestress muscle, reduce efficiency of construction.Use connector in conjunction with the design and construction scheme, super-length prestressed muscle can be changed into by the blanking of subsection tension length by the total length blanking, effectively save the blanking construction plant, both improved efficiency of construction, increased construction benefit again.
5. reduce the presstressed reinforcing steel loss
In recent years in the unbonded prestressed concrete engineering, the producer price of presstressed reinforcing steel has accounted for the prestressing force the work items and has contracted 45～50% of total price at home, therefore reduces the presstressed reinforcing steel loss, has become the key factor that improves the prestress engineering economic benefit.Owing to reasons such as design alteration, blanking error, steel strand tailings, often occur in the construction because of the too short out of use situation of presstressed reinforcing steel.Satisfying under the short muscle economy connection of the prestressing force length condition, using the M1L15-1 connector short material spreading can be used, reducing the presstressed reinforcing steel loss to greatest extent.
When ground tackle formula steel strand connector is positioned at the middle part of spreading presstressed reinforcing steel, need the special plastic big envelope is set outside connector, in structure, form the cavity that allows connector to move, avoid stoping the stretching extension distortion of presstressed reinforcing steel; Or back pouring hole structurally is set, and connector can be moved in the hole, fill up with concrete again after the stretch-draw; Or cooperate late poured band to use.
When cooperating single hole intermediate plate ground tackle to use ground tackle formula steel strand connector, the one section steel strand that exposes behind the single hole ground tackle needn't block, and this helps reducing the presstressed reinforcing steel loss.If but found that this section steel strand are bitten by the intermediate plate of moveable anchor, should in time the damage section would be cut out, to avoid reducing the limit tension bearing capacity after two sections presstressed reinforcing steels connect.
The utility model is a kind of novel anchoring and fastening means of single steel strand presstressed reinforcing steel, not only can bear load with steel strand ultimate tension equivalence, and can satisfy the multinomial technological requirement of prestress engineering, be the special tool that uses when (elongated) cloth muscle, subsection tension construction continuously in the overlength prestressing without bondn structure.The utility model key property satisfies the correlation technique requirement of " use for tendon ground tackle, anchor clamps and connector " GB/T 14370-2000 national standard and " use for tendon ground tackle, anchor clamps and connector application technology rules " JGJ 85-2002/J 219-2002 industry standard; Compare with existing like product, the structure of ground tackle formula steel strand connector is compacter, and each parts is easy to processing and installs, and the product design after the assembling is littler, and the relevant speciality requirement is satisfied in appearance design; Rational in infrastructure, simple structure is easy to processing, and is easy to use, has connector and ground tackle dual-use function; Application cost is lower than existing similar connector with product price.The anchoring that the utility model is mainly used in overlength tendon of steel strand in the building structure be connected.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation of the utility model embodiment two.
1-connecting cylinder, 2-inner conical surface screwed pipe, 3-wedge shape intermediate plate, the spacing push pipe of 4-, 5-clamping plane, 6-steel strand.
The specific embodiment
Embodiment one is as shown in Figure 1: ground tackle formula steel strand connector is made up of a connecting cylinder 1, inner conical surface screwed pipe 2, a built-in spacing push pipe 4 and two groups of intermediate plates 3.The connecting cylinder periphery is the equal diameter face of cylinder, and small bore end is provided with two clamping planes 5, cooperates with erecting tools, big nose end inwall is established screw thread, and with the threads engaged of inner conical surface screwed pipe, the inwall in tube stage casing is the face of cylinder, the inwall of small bore end is a taper seat, matches with the wedge shape intermediate plate.When connecting cylinder bore axial tension, the anchor ring as two groups of wedge shape intermediate plates bore hoop tension again, and integrated its external diameter that makes is less.For satisfying the needs of double as stretch-draw end ground tackle, connecting cylinder is formed by two sections, also bear simultaneously axially and hoop tension, but the external diameter of junction is bigger.Compare with existing like product, the globality of amphitypy connector urceolus obviously improves, and total length all obviously reduces.Inner conical surface screwed pipe outer end is for waiting hexahedron, and middle part and inner periphery are established screw thread, match with the connecting cylinder inner thread, and the screwed pipe inwall is a taper seat, match with intermediate plate, aperture outside, macropore is interior.Inner conical surface screwed pipe and connecting cylinder co-operation form the combination anchor ring.Spacing push pipe periphery is the face of cylinder, matches with the face of cylinder inwall in connecting cylinder stage casing; The inwall of spacing push pipe is the face of cylinder, and dividing plate is established in the centre, and dividing plate equates apart from the spacing at two ends.This spacing push pipe is similar to the preloading spring in the like product, has position-limiting action when transmitting screwed pipe one side wedge shape intermediate plate thrust, is used to control the initial position of termination in connecting cylinder of wedge shape intermediate plate, steel strand 6.The wedge shape intermediate plate cooperates the taper seat in screwed pipe and the connecting cylinder, and two group of two lobe or three lobe type wedge shape intermediate plates are installed in connecting cylinder relatively.When connecting cylinder bore axial tension, the anchor ring as two groups of wedge shape intermediate plates bore hoop tension again, and integrated its external diameter that makes is less.
During use, assemble each parts by Fig. 1 earlier, screw the inner conical surface screwed pipe then and carry out pretension, screwed pipe drives the wedge shape intermediate plate and push pipe moves in connecting cylinder, push pipe holds out against other end wedge shape intermediate plate again subsequently, makes two groups of wedge shape intermediate plates clamp two sections steel strand inserting ends simultaneously respectively, and finishes connection.Spacing push pipe guarantees that wedge shape intermediate plate and steel strand are in the tram in connecting cylinder.When connector was used as the use of anchored end ground tackle earlier, urceolus promptly was fixed on the billet after the stretch-draw, and at this moment only need screw screwed pipe connects another section steel strand.Manually can control the position of wedge grip sheet during use, so the design length of push pipe is less in this type connector in the steel strand end.
Embodiment two is as shown in Figure 2: connecting cylinder is formed by two sections, can bear simultaneously axially and hoop tension, and the two ends of connecting cylinder periphery are the face of cylinder that diameter does not wait, and the external diameter of junction is bigger.At the bigger end of external diameter, the internal thread of tube inwall matches with the external screw thread of inner conical surface screwed pipe (also can be described as and be connected anchor ring), inner conical surface screwed pipe outer end is a cylindrical shape, spacing push pipe excircle matches with the face of cylinder inwall in connecting cylinder stage casing, the inwall of spacing push pipe is the face of cylinder, and intermediate membrane does not wait apart from the spacing at two ends.Intermediate plate cooperates the taper seat in inner conical surface screwed pipe and the connecting cylinder, and two group of two lobe or three lobe type wedge shape intermediate plates can be installed relatively.
During use, need side steel strand of cutting pretensioning, for making things convenient for cutting construction, the length of spacing push pipe is bigger in this type connector.Earlier inner conical surface screwed pipe and one group of wedge shape intermediate plate are used as anchored end or stretch-draw end ground tackle, behind one section steel strand of stretch-draw, the inner conical surface screwed pipe is fixed on the billet of structural edge.The outer steel strand of inner conical surface screwed pipe are stretched out in brachymemma then, and connecting cylinder is installed, and connect another section steel strand.
Claims (7)
1, a kind of ground tackle formula steel strand connector, connecting cylinder is built-in with intermediate plate, inserts two sections steel hinge lines respectively and realizes connection from connecting cylinder two ends centre bore, it is characterized in that:
Connecting cylinder centre bore stage casing is the equal diameter face of cylinder, and the hole inwall cooperates with spacing push pipe outer circumference surface, and the inwall of spacing push pipe is the face of cylinder, a centre dividing plate of limiting;
At an end of connecting cylinder, the tube inwall is provided with screw thread, matches with the external screw thread of inner conical surface screwed pipe; The inner conical surface screwed pipe is the taper seat inwall, matches with the wedge shape intermediate plate; Inner conical surface screwed pipe and the aperture that is connected anchor ring are in the outer end, and macropore is in the inner;
The inwall of the connecting cylinder other end is a taper seat, cooperates with the wedge shape intermediate plate, and conical bore outer end diameter is little, and inner diameter is identical with tube stage casing internal diameter.
2, ground tackle formula steel strand connector according to claim 1, it is characterized in that: described connecting cylinder periphery is the equal diameter face of cylinder.
3, ground tackle formula steel strand connector according to claim 1 and 2 is characterized in that: described inner conical surface screwed pipe outer end is to wait hexahedron.
4, ground tackle formula steel strand connector according to claim 1 is characterized in that: described connecting cylinder periphery is the step-like face of cylinder of equal diameter not.
5, according to claim 1 or 4 described ground tackle formula steel strand connectors, it is characterized in that: the outer end of described inner conical surface screwed pipe is the equal diameter face of cylinder.
6, according to claim 1,2 or 4 described ground tackle formula steel strand connectors, it is characterized in that: described connecting cylinder is having conical bore one side outer circumference surface that two clamping planes are arranged.
7, according to claim 1,2 or 4 described ground tackle formula steel strand connectors, it is characterized in that: described wedge shape intermediate plate is two lobes or three lobe wedge shape intermediate plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277012 CN2637612Y (en) | 2003-07-18 | 2003-07-18 | Anchoring steel twisted wire connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277012 CN2637612Y (en) | 2003-07-18 | 2003-07-18 | Anchoring steel twisted wire connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2637612Y true CN2637612Y (en) | 2004-09-01 |
Family
ID=34302571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03277012 Expired - Lifetime CN2637612Y (en) | 2003-07-18 | 2003-07-18 | Anchoring steel twisted wire connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2637612Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434636C (en) * | 2006-12-20 | 2008-11-19 | 北京城建集团有限公司 | Steel strand retractor |
| CN100519966C (en) * | 2007-01-23 | 2009-07-29 | 建研科技股份有限公司 | Engaged single-hole opening anchorage for steel strand prestressed tendon |
| CN101613966B (en) * | 2009-07-27 | 2011-08-10 | 奥盛新材料股份有限公司 | Method for changing length of process wastes of steel strand joints |
| CN103590597A (en) * | 2013-11-18 | 2014-02-19 | 中煤建筑安装工程集团有限公司 | Jointer for rapid butting and clamping connection of reinforcing steel bars or steel tubes |
| CN103991132A (en) * | 2014-05-16 | 2014-08-20 | 中铁建大桥工程局集团第四工程有限公司 | Prefabricated T-beam steel strand discharging and steel strand clustering integrated device |
| CN104328869A (en) * | 2014-11-13 | 2015-02-04 | 宁波建工股份有限公司 | Anchoring type connecting device for steel bar wedge cone and connecting method thereof |
| CN106149982A (en) * | 2016-07-19 | 2016-11-23 | 成都鹏程路桥机械有限公司 | A kind of prestressed anchor |
| CN107829389A (en) * | 2017-11-08 | 2018-03-23 | 王筱文 | A kind of attachment means of wirerope |
-
2003
- 2003-07-18 CN CN 03277012 patent/CN2637612Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434636C (en) * | 2006-12-20 | 2008-11-19 | 北京城建集团有限公司 | Steel strand retractor |
| CN100519966C (en) * | 2007-01-23 | 2009-07-29 | 建研科技股份有限公司 | Engaged single-hole opening anchorage for steel strand prestressed tendon |
| CN101613966B (en) * | 2009-07-27 | 2011-08-10 | 奥盛新材料股份有限公司 | Method for changing length of process wastes of steel strand joints |
| CN103590597A (en) * | 2013-11-18 | 2014-02-19 | 中煤建筑安装工程集团有限公司 | Jointer for rapid butting and clamping connection of reinforcing steel bars or steel tubes |
| CN103590597B (en) * | 2013-11-18 | 2016-09-21 | 中煤建筑安装工程集团有限公司 | The rapid abutting joint clamping connection splicer of reinforcing bar or steel pipe |
| CN103991132A (en) * | 2014-05-16 | 2014-08-20 | 中铁建大桥工程局集团第四工程有限公司 | Prefabricated T-beam steel strand discharging and steel strand clustering integrated device |
| CN104328869A (en) * | 2014-11-13 | 2015-02-04 | 宁波建工股份有限公司 | Anchoring type connecting device for steel bar wedge cone and connecting method thereof |
| CN104328869B (en) * | 2014-11-13 | 2016-09-07 | 宁波建工股份有限公司 | Reinforcing bar wedge cone anchoring type attachment means and method of attachment |
| CN106149982A (en) * | 2016-07-19 | 2016-11-23 | 成都鹏程路桥机械有限公司 | A kind of prestressed anchor |
| CN107829389A (en) * | 2017-11-08 | 2018-03-23 | 王筱文 | A kind of attachment means of wirerope |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2637612Y (en) | Anchoring steel twisted wire connector | |
| CN2739290Y (en) | Steel strand vertical prestress anchoring system | |
| CN101074578B (en) | Special anchoros for wedged variable-corrugated clamped sheets | |
| CN202925767U (en) | Low-retraction pre-stressed anchorage device | |
| CN206467574U (en) | For finish rolling deformed bar anchorage sleeve fastener | |
| CN107165060B (en) | Bridge prestressing force high strength wire rope bending resistance reinforcing apparatus | |
| CN102912987B (en) | Stress applying method and tool thereof for low retraction pre-stress concrete member | |
| CN101349110B (en) | Reducing prestress structure system before prestressed reinforcement withdrawing tension | |
| CN105666688B (en) | A kind of prefabricated pile, pile body and production method | |
| CN108396969B (en) | Steel strand mesh tensioning and fastening assembly for building structure reinforcement and application method thereof | |
| CN206071086U (en) | The system of prestress rope integrative consolidation slab column | |
| CN215106597U (en) | Combined sleeve type novel steel bar truss for laminated slab | |
| CN115538697A (en) | Large-span slow-bonding prestressed reinforced concrete structural beam | |
| CN2706548Y (en) | Mould for moulding column | |
| CN201671339U (en) | Fixing device for wall bodies and beam column templates of buildings | |
| CN211113185U (en) | Prestressed bending and anchoring device for pre-tensioning method precast beam plate | |
| CN1206420C (en) | High-grade prestressed bolt cable of compact rope for geotechnical engineering | |
| CN112096053A (en) | Aluminum formwork for building | |
| CN209780243U (en) | Fastening device for assembling and hoisting FS composite heat-insulation external template | |
| CN2853980Y (en) | Building shuttering steel pipe fastener | |
| CN205591551U (en) | Novel concrete member template clip | |
| CN220414873U (en) | External corner reinforcing device for building construction shear wall or column part wood template system | |
| CN108086596A (en) | Fusiformis anchor head and its application for the major diameter high tensile reinforcement of reinforced concrete beam column node | |
| CN216516492U (en) | Extrusion tool for prestressed stranded wire or prestressed reinforcement fixed end | |
| CN2701981Y (en) | High strength wire pre-tensioned prestressing anchor system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130718 Granted publication date: 20040901 |