CN105290274B - Triangular Taper Penetrating water-permeable frame steel thimble extrudes cold connection forming method - Google Patents
Triangular Taper Penetrating water-permeable frame steel thimble extrudes cold connection forming method Download PDFInfo
- Publication number
- CN105290274B CN105290274B CN201510160406.0A CN201510160406A CN105290274B CN 105290274 B CN105290274 B CN 105290274B CN 201510160406 A CN201510160406 A CN 201510160406A CN 105290274 B CN105290274 B CN 105290274B
- Authority
- CN
- China
- Prior art keywords
- rod member
- class
- rod members
- jack
- classes
- 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
Landscapes
- Joining Of Building Structures In Genera (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The present invention seeks to disclosing a kind of Triangular Taper Penetrating water-permeable frame steel thimble extrudes cold connection forming method, three beams reinforcing bar is enclosed within steel pipe using a kind of method of cold connection, on the basis of Split hydraulic clamp, pressure output end is transformed, hydraulic jack with tip top is uniformly fixed on triangle reaction frame, by hydraulic controller controlled output pressure, under 3 points of stress effects, make sleeve pipe produce plastic deformation, and lock ring is in reinforcing bar.
Description
Technical field
The present invention relates to the Triangular Taper Penetrating water-permeable frame in waterway regulation is manufactured, belong to steel thimble and extrude cold connection skill
Art field.
Background technology
In dredging waterway work, the solid foot of shore protection occupies extremely important status.The solid foot engineering of entity shore protection mainly has throwing
Stone shore protection, concrete block hinge row, mold-bagged concrete, modeling pillow protection, ballast earth work fabric soft revetment shore protection etc., apply wider
General is riprap protection.There is block stone easy, simple, investment of constructing of drawing materials to save, the convenient advantage of maintenance management, but block stone
Itself it is particulate structure, without globality, during riverbed is with current adjustment, block stone is easily rolled with the deformation in riverbed
Dynamic displacement causes to scatter and disappear, and affects the effect of the stable and shore protection of bank-protection works.Meanwhile, after jackstone is reinforced, current transversal flow is received
Resistance, switchs to incision, and scour block stone foundation, toe riverbed are caused the slip of block stone, rolling, avalanche, caused solid bank engineering sheet by degradation
Body unstability and destroy.
Concrete Triangular Taper Penetrating water-permeable frame is a kind of new solid bank method, is obtained in Yangtze River waterway training works
Successful application.Framework is welded to each other by 6 prefabricated equal length armored concrete rod members and is constituted, in positive tetrahedron.
Permeable rod member cross dimensions is 10mm*10mm, and length is generally divided into 0.6m, 0.8m and 1m, and concrete adopts C20 intensity, framework
Contain 1 in the middle of rod memberReinforcing bar, two ends respectively expose 13cm and weld for rod member.It is that Triangular Taper Penetrating is permeable that the concentration of factory makes
Advantage of the framework compared with other bank protection methods, existing frame manufacture technique mainly have two kinds：One is frame member precast assembly method；
Two is the frame mold method of forming.
Rod member precast assembly method adopts modularization making frame member, and rod member manufacture method is simple, and operation is few, efficiency high.
But when rod member splices and welds, as six rods need to be overlapped in advance, the stability of overlap joint, rod member position accurate
Property etc. is all difficult to ensure that, therefore can cause difficulty to the welding of rod member, so as to affect the efficiency of framework integral manufacturing；Next, this
When method makes framework, three reinforcing bar roots of frame joint meet at a bit, and rod member is connected as a contact, can be only formed one during welding
Individual pad, it is difficult to reach the design requirement of fusion length so that framework using durability be difficult to ensure that.
When mould forming method makes Triangular Taper Penetrating water-permeable frame, framework of steel reinforcement advance notice welding overcomes rod member precast assembly
Instability problem during method during the welding of rod member overlap joint, and the framework that makes is one-shot forming, welding node is covered in concrete,
Improve the reliability and stability of framework.Then, the framework that the method is made, its skeleton reinforcing steel bar node are still point connection,
Fusion length does not have essential change；Secondly, during frame manufacture, in mould, the installation of internal model, fixation and demolishing process multiple
Miscellaneous, it is difficult to effectively improve the make efficiency of framework；Again, when framework is produced in a large number, fabricating yard needs to equip a large amount of moulds, system
Make investment larger.
Content of the invention
On the basis of the present invention is according to existing several Triangular Taper Penetrating water-permeable frame moulding processs, a kind of new steel bushing is proposed
Pipe extrudes cold-connecting method.The feasibility study that novel process is carried out by indoor prototype test, finds key node in construction,
And be acted upon solving, to reach simplified Triangular Taper Penetrating water-permeable frame manufacturing process and effectively reduce cost of manufacture, improve framework
Reliability and stability purpose.
The technical scheme adopted for realizing the object of the invention is such, and a kind of Triangular Taper Penetrating water-permeable frame steel thimble is squeezed
Press cold connection forming method, it is characterised in that comprise the following steps：
1) some a classes rod members and b class rod members are made；The a classes and b classes rod member are by rod member skeleton reinforcing steel bar and overcoating concrete
Composition；The overcoating concrete cross section is length of side 10cm square, is cladded with concrete length and is determined according to engine request；Rod member bone
Overcoating concrete is stretched out at the two ends of frame reinforcing bar, and often end outreach is not less than 15cm；A classes and b class rod member skeleton reinforcing steel bars and overcoating
The identical length of concrete is same；The a classes rod member skeleton reinforcing steel bar stretches out the two ends bending of overcoating concrete in 27 ± 1 °；The b
Class rod member skeleton reinforcing steel bar is stretched out one end bending of overcoating concrete and is bent in 59 ° in 31 °, the other end；
2) three a class rod members are placed on a liftoff platform；The two ends skeleton reinforcing steel bar bending place of each a class rod member,
Contact with the bending place of the skeleton reinforcing steel bar of other two a class rod members so that three a class rod members are combined into equilateral triangle；Any two a
Angle point of the contact position of class rod member for equilateral triangle；
3) three b class rod members are prepared；Step 2) three a classes rod members and this three b class rod members be overlapped to form a tetrahedron；
Be one end that this three b class rod member skeleton reinforcing steel bar bending angles are 59 ° respectively with step 2) in three a class rod members be combined into positive three
Three angular angle points connect, and form three angle points of tetrahedron bottom surface；Three b class rod member skeleton reinforcing steel bars bending angles are 31 °
One end connect, form the angle point on tetrahedron top；Tetrahedral 4 corner points, 3 skeleton reinforcing steel bars of two class rod members are parallel to be connect
Touch；3 parallel skeleton reinforcing bars of four angle points are entangled using the hollow circular cylinder sleeve of 4 open at both ends；
4) a triangle reaction frame and three jack are prepared；
Three jack are respectively positioned in the middle of triangle reaction frame；The tail end of each jack is anti-with triangle respectively
The a line contact of power frame；The telescopic end of three jack points to triangle reaction frame center；
5) triangle reaction frame is enclosed within any one cartridge exterior so that the telescopic end of three jack and this sleeve
Outer surface contact；Start three jack, by this sleeve cold-pressing deformation；
6) with reference to step 5) method, complete colding pressing for each sleeve.
Further, the equal outsourcing cuboid sleeve pipe of the main part of a classes rod member and/or b class rod members.A classes rod member and/or
The bending part of b class rod members is located at the two ends of cuboid sleeve pipe.
Further, step 2) in, described platform is made up of disk, column, inclined support bar and base.
The uprights vertical is in floor installation.The disk is parallel to horizontal plane, and is located above base.The column is worn
Cross disk.The upper end of column is located at the top of disk.
The upper end of three inclined support bars is both connected to the outer surface of the column, and lower end is both connected to the upper surface of disk.
Further, step 4) in, the termination of the telescopic end of the jack is dome.Step 5) in, three jack
The termination of telescopic end extrudes the gap in the middle of reinforcing bar bundled together.
What deserves to be explained is, the inventive method is three beams reinforcing bar to be enclosed within steel pipe using a kind of method of cold connection,
On the basis of Split hydraulic clamp, pressure output end is transformed, the hydraulic jack with tip top is uniformly fixed
On triangle reaction frame, by hydraulic controller controlled output pressure, under 3 points of stress effects, make sleeve pipe produce plasticity and become
Shape, and lock ring had the advantages that relative to prior art in reinforcing bar：
1) in terms of rod member splicing, rod member positioning can be made more accurately using the splicing shelf for making, improves assembled speed
Degree；
2) in terms of node connection, sleeve pipe cold joint is made into by traditional welding：The centering of the cold connection of reinforcing bar is good, performance is steady
Fixed, strength of joint is high, easy to operate, speed is fast, the flames of anger, weatherproof, can all-weather construction；
3) on the node connection construction time, one node of traditional welding about 180 seconds or so, and currently designed sleeve pipe is cold
From beginning, connection all realizes that Expected Results only needs to 7 seconds or so；
Description of the drawings
Fig. 1 is (two classes) steel bar meter schematic diagram in water-permeable frame rod member；
Fig. 2 is schematic diagram after water-permeable frame assembly shelf and assembly；
Fig. 3 is steel thimble and bar connecting schematic diagram；
Fig. 4 is jack and reaction frame overall schematic；
Fig. 5 is that jack is colded pressing schematic diagram；
Fig. 6 is jacking header schematic diagram；
Fig. 7 is axonometric chart of the present invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples, but should not be construed above-mentioned theme of the invention
Scope is only limitted to following embodiments.Without departing from the idea case in the present invention described above, known according to ordinary skill
Know and customary means, make various replacements and change, all should include within the scope of the present invention.
Embodiment 1：
The present embodiment provides a kind of Triangular Taper Penetrating water-permeable frame steel thimble and extrudes cold connection forming method, including following step
Suddenly：
1) referring to a, b part of Fig. 1, some a classes rod member (water-permeable frame base reinforcing bars) and b class rod member (permeable frames are made
Frame side reinforcing bar).The a classes and b classes rod member by skeleton reinforcing steel bar and overcoating coagulation local soil type into；The overcoating concrete cross section is side
Long 10cm squares, are cladded with concrete length and are determined according to engine request, i.e., the main part of described a classes rod member and b class rod members
Equal outsourcing cuboid sleeve pipe.Rod member skeleton reinforcing steel bar stretches out overcoating concrete, and often end outreach is not less than 15cm；A classes and b class bars
The identical length of part skeleton reinforcing steel bar and overcoating concrete is same；(skeleton reinforcing steel bar stretches out the portion of overcoating concrete at a classes rod member two ends
Point) bend in 27 °.One end (skeleton reinforcing steel bar stretches out the part of overcoating concrete) bending of the b classes rod member is in 31 °, the other end
(skeleton reinforcing steel bar stretches out the part of overcoating concrete) bending is in 59 °.
What deserves to be explained is, in order that the reinforcing bar that four nodes of framework go out on three directions that stretches is in one direction
And three reinforcing bars can be leaning closely against together so that steel thimble easily can be inserted in, need to calculate reinforcing bar expose rod length,
Transfer angle and bend up a little.In embodiment, water-permeable frame a class member design overall lengths 1400mm, 200mm is respectively stayed at two ends, and is bent
27 ° ± 1 °, bend up a little apart from end 96.6mm.The long 1460mm of b class member designs, two ends respectively stay 230mm, bend respectively and 31 °
With 59 °, bend up a little apart from end distinguish 121.74mm and 93.17mm.
The bending part of a classes rod member and b class rod members is located at the two ends of cuboid sleeve pipe.Cuboid sleeve pipe is Steel Casing.a
The screw-thread steel of class rod member and b classes rod member for Φ 10, steel thimble is seamless steel pipe, overall diameter 28mm thickness 5mm.
2) referring to the b parts of Fig. 2, three a class rod members are placed on a liftoff platform.The two ends of each a class rod member are curved
At folding, contact with the bending place of other two a class rod members so that three a class rod members are combined into equilateral triangle；Any two a classes
Angle point of the contact position of rod member for equilateral triangle.
3) see also the b parts of Fig. 2, three b class rod members are prepared.Step 2) three a classes rod members will be with this three b
Class rod member is overlapped to form a tetrahedron；
After bundled together for the one end of this three b classes rod members in 31 ° of bendings, the angle point on tetrahedron top is formed, one is adopted
The hollow circular cylinder sleeve of individual open at both ends entangles (such as Fig. 3).
This three b classes rod members be located at step 2) three a class steel top.The one end of each b classes rod member in 59 ° of bendings
After bundled together with the bending end of two a class rod members, three angle points of tetrahedron bottom surface are formed；Prepare three open at both ends
Hollow circular cylinder covers jacket casing, is entangled (such as Fig. 3).
4) a triangle reaction frame and three jack are prepared.
Three jack are respectively positioned in the middle of triangle reaction frame.The tail end of each jack is anti-with triangle respectively
The a line contact of power frame.The telescopic end of three jack points to triangle reaction frame center.
In the present embodiment, channel-section steel welding triangularity of the jack reaction frame using 200mm, the length of side is 600mm, inside which
The steel plate for having 200mm*120mm*16mm is welded at three angles.In order to be able to make the direction of three jack applying powers flat at one
In face, steel plate center is made to correspond with jack center first, after center alignment, as very heavy top/bottom part has bored four in advance
The bolt hole of individual M10, so the Kong Yuqi bored by steel plate overlaps, blending bolt is fixed to jack on steel plate, it is achieved that steel
Plate is fixed with jack, and meets three jack in one plane.
What deserves to be explained is, as shown in figure 3, as the reinforcing bar in sleeve and sleeve are closely forced together, steel thimble
Hole in three directions is deposited with steel bar plane, so jack will be in three direction applying powers, this is accomplished by a shelf
Three jack are got up with guarantee effect direction in a plane according to certain angle combinations, and reaction frame bears thousand
The counteractive power in jin top, meets rigidity and intensity requirement.
5) referring to Fig. 7, triangle reaction frame is enclosed within any one cartridge exterior so that the telescopic end of three jack with
The outer surface contact of this sleeve.Start three jack, by this sleeve cold-pressing deformation.As shown in figure 5, combination jack
When applying pressure to steel thimble, one on the hole direction that reinforcing bar and steel thimble will be formed first on three directions of applying power
Cause.By the plastic deformation of steel bushing so that steel thimble is fully combined with face outside reinforcing bar.As shown in fig. 6, the bottom of jacking header
Portion's size first has to satisfaction and just can be nested into inside hollow jack, and it is tubular with steel bushing that the concrete size on top will meet reinforcing bar
Into plane in the pore-size requirement that contains；On material is selected, wolfram steel is used, it is ensured that its rigidity is sufficiently large should not to be become
The features such as shape.
What deserves to be explained is, the power-equipment of the jack of the present invention uses electric hydraulic oil pump, by one three
Open up pass a total oil circuit assign to three oil circuits go to realize three jack and meanwhile work.Can be controlled by oil pressure control
Loading and unloading and loading speed, while observing oil gauge obtains pressure size value.
6) with reference to step 5) method, complete colding pressing for each sleeve.
Embodiment 2
The main technological steps of the present embodiment are with embodiment 2, but further machining tool has been made further to study.Specifically
Ground, referring to a parts for seeing Fig. 2.Step 2) in, described platform is made up of disk, column, inclined support bar and base.
The uprights vertical is in floor installation.The disk is parallel to horizontal plane, and is located above base.The column is worn
Cross disk.The upper end of column is located at the top of disk.
The upper end of three inclined support bars is both connected to the outer surface of the column, and lower end is both connected to the upper surface of disk.
Further, the upper surface of the disk is welded into slightly a little greatly than base of frame rod member pros by six roots of sensation equal leg angle
Shape stopper slot.Reinforcing bar of the column for Φ 20.It is upper and lower that the top of column is inserted in blending bolt in screw rod by the steel plate that thickness is 3mm
Fix and can also adjust steel plate position up and down, for determining most suitable height after assembly.The base is by the corners such as three
Steel is welded into spider inside which circular steel plate, and the vertical place in steel plate center is welded with iron pipe, while top is also welded with iron pipe, two
Iron pipe is nested together, and can thus realize the rotation of support.
Claims (4)
1. a kind of Triangular Taper Penetrating water-permeable frame steel thimble extrudes cold connection forming method, it is characterised in that comprise the following steps：
1) some a classes rod members and b class rod members are made；The a classes and b classes rod member are by rod member skeleton reinforcing steel bar and overcoating coagulation local soil type
Into；The overcoating concrete cross section is length of side 10cm square, and the two ends of rod member skeleton reinforcing steel bar are stretched out overcoating concrete, often hold and stretch
Go out distance not less than 15cm；The identical length of the rod member skeleton reinforcing steel bar and overcoating concrete of a classes and b class rod members is same；The a classes bar
The rod member skeleton reinforcing steel bar of part stretches out the two ends bending of overcoating concrete in 27 ± 1 °；The rod member skeleton reinforcing steel bar of the b classes rod member is stretched
One end bending for going out overcoating concrete is bent in 59 ° in 31 °, the other end；
2) three a class rod members are placed on a liftoff platform；The two ends rod member skeleton reinforcing steel bar bending place of each a class rod member,
Contact with the bending place of the rod member skeleton reinforcing steel bar of other two a class rod members so that three a class rod members are combined into equilateral triangle；Arbitrarily
Angle point of the contact position of two a class rod members for equilateral triangle；
3) three b class rod members are prepared；Step 2) three a classes rod members and this three b class rod members be overlapped to form a tetrahedron；It is this
The rod member skeleton reinforcing steel bar bending angle of three b class rod members be 59 ° one end respectively with step 2) in three a class rod members be just combined into
Three angle points of triangle connect, and form three angle points of tetrahedron bottom surface；The rod member skeleton reinforcing steel bar bending angle of three b class rod members
Spend and connect for 31 ° one end, form the angle point on tetrahedron top；Tetrahedral 4 corner points, 3 rod member bones of two class rod members
Frame parallel reinforced steel bar is contacted；Hollow circular cylinder sleeve using 4 open at both ends is by 3 of four angle points parallel rod member skeleton steels
Muscle is entangled；
4) a triangle reaction frame and three jack are prepared；
Three jack are respectively positioned in the middle of triangle reaction frame；The tail end of each jack respectively with triangle reaction frame
A line contact；The telescopic end of three jack points to triangle reaction frame center；
5) triangle reaction frame is enclosed within any one cartridge exterior so that the telescopic end of three jack is outer with this sleeve
Surface contacts；Start three jack, by this sleeve cold-pressing deformation；
6) with reference to step 5) method, complete colding pressing for each sleeve.
2. Triangular Taper Penetrating water-permeable frame steel thimble according to claim 1 extrudes cold connection forming method, it is characterised in that：
The equal outsourcing cuboid sleeve pipe of the main part of a classes rod member and/or b class rod members；A classes rod member and/or the kink of b class rod members
Divide the two ends for being located at cuboid sleeve pipe.
3. Triangular Taper Penetrating water-permeable frame steel thimble according to claim 1 extrudes cold connection forming method, it is characterised in that：
Step 2) in, described platform is made up of disk, column, inclined support bar and base；
The uprights vertical is in floor installation；The disk is parallel to horizontal plane, and is located above base；The column is through circle
Disk；The upper end of column is located at the top of disk；
The upper end of three inclined support bars is both connected to the outer surface of the column, and lower end is both connected to the upper surface of disk.
4. Triangular Taper Penetrating water-permeable frame steel thimble according to claim 1 extrudes cold connection forming method, it is characterised in that：
Step 4) in, the termination of the telescopic end of the jack is dome；Step 5) in, the termination of the telescopic end of three jack is squeezed
Gap in the middle of pressure beam rod member skeleton reinforcing steel bar together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510160406.0A CN105290274B (en) | 2015-04-07 | 2015-04-07 | Triangular Taper Penetrating water-permeable frame steel thimble extrudes cold connection forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510160406.0A CN105290274B (en) | 2015-04-07 | 2015-04-07 | Triangular Taper Penetrating water-permeable frame steel thimble extrudes cold connection forming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105290274A CN105290274A (en) | 2016-02-03 |
| CN105290274B true CN105290274B (en) | 2017-03-15 |
Family
ID=55188472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510160406.0A Expired - Fee Related CN105290274B (en) | 2015-04-07 | 2015-04-07 | Triangular Taper Penetrating water-permeable frame steel thimble extrudes cold connection forming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105290274B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2142377Y (en) * | 1992-11-24 | 1993-09-22 | 王添发 | Joint device for reinforcing bar |
| JP2982083B2 (en) * | 1991-07-09 | 1999-11-22 | ヤマハ発動機株式会社 | Joint structure of truss structure |
| CN2822826Y (en) * | 2005-10-17 | 2006-10-04 | 上海宝钢建筑工程设计研究院 | Side pressing type steel bar connecting machine |
| JP2011080256A (en) * | 2009-10-07 | 2011-04-21 | Ishida Shozo | Knock-down frame, water-permeable structure, construction, frame panel, and connecting member |
| CN204000754U (en) * | 2014-06-19 | 2014-12-10 | 长江航道规划设计研究院 | A kind of snap close installing type water-permeable frame |
| CN204174575U (en) * | 2014-10-16 | 2015-02-25 | 长江泸州航道局 | The mounting bracket of card system formula water-permeable frame |
-
2015
- 2015-04-07 CN CN201510160406.0A patent/CN105290274B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2982083B2 (en) * | 1991-07-09 | 1999-11-22 | ヤマハ発動機株式会社 | Joint structure of truss structure |
| CN2142377Y (en) * | 1992-11-24 | 1993-09-22 | 王添发 | Joint device for reinforcing bar |
| CN2822826Y (en) * | 2005-10-17 | 2006-10-04 | 上海宝钢建筑工程设计研究院 | Side pressing type steel bar connecting machine |
| JP2011080256A (en) * | 2009-10-07 | 2011-04-21 | Ishida Shozo | Knock-down frame, water-permeable structure, construction, frame panel, and connecting member |
| CN204000754U (en) * | 2014-06-19 | 2014-12-10 | 长江航道规划设计研究院 | A kind of snap close installing type water-permeable frame |
| CN204174575U (en) * | 2014-10-16 | 2015-02-25 | 长江泸州航道局 | The mounting bracket of card system formula water-permeable frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105290274A (en) | 2016-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105887811B (en) | Ultra-deep weak soil pile integral construction method is monitored based on precise informationization | |
| CN109629403B (en) | Concrete support column structure and manufacturing method thereof | |
| CH713032B1 (en) | An assembly comprising a heat transfer conduit embedded in a prefabricated tubular pile and a method for installing the assembly | |
| CN103422620A (en) | Prefabricated hollow steel-reinforced concrete column and splicing structure and splicing method thereof | |
| CN106906951A (en) | The concrete filled steel tube component and its processing method of a kind of steel tube confinement of sandwich | |
| CN206707122U (en) | A kind of concrete filled steel tube component of the steel tube confinement of sandwich | |
| CN108708481B (en) | Construction method for constructional column without formwork support | |
| CN205088797U (en) | Empty intermediate layer steel core concrete column of half punching wherein and girder steel connected node imbed | |
| CN106917470A (en) | The steel tube confinement concrete-filled rectangular steel tube component and its processing method of a kind of sandwich | |
| CN105290274B (en) | Triangular Taper Penetrating water-permeable frame steel thimble extrudes cold connection forming method | |
| CN106948476B (en) | The frame and its construction method that prestressing with bond combination beam is constituted | |
| CN104652430A (en) | Composite reinforcement partially prestressed concrete solid square pile and manufacturing method thereof | |
| CN112049019A (en) | Accurate installation structure and construction method for complex three-dimensional variable cross-section arch rib | |
| CN204401628U (en) | Large-span steel supports multidirectional connector | |
| CN110820743A (en) | Accurate positioner of prestressing force tubular pile | |
| CN206941588U (en) | A kind of simple positioning tool of steel-pipe pile spreading | |
| CN207332114U (en) | A kind of steel tube confinement concrete-filled rectangular steel tube component of sandwich | |
| CN104452798A (en) | Offshore wind turbine foundation structure and equipment and construction method of offshore wind turbine foundation equipment | |
| CN206681263U (en) | A kind of concrete filled steel tube new type of component of steel tube confinement | |
| CN213773339U (en) | Tubular pile with large bearing capacity | |
| CN213173700U (en) | Precast pile for soft foundation treatment | |
| CN204139162U (en) | Concrete tubular pile pile splicing structure | |
| CN212534828U (en) | Tool for controlling bottom plate steel bar stirrup and gluten elevation | |
| CN216765927U (en) | Assembled supporting device | |
| CN210684706U (en) | Be used for PHC tubular pile to dig instrument of fetching earth soon |
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 | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 1, Fuxing Avenue, Shuang Fu new area, Jiangjin District, Chongqing Co-patentee after: CHANGJIANG CHONGQING WATERWAY ENGINEERING BUREAU Patentee after: CHONGQING JIAOTONG University Address before: 400074 Chongqing Nan'an District University Avenue, No. 66 Co-patentee before: Changjiang Chongqing Waterway Engineering Bureau Patentee before: chongqing jiaotong university |
|
| 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: 20170315 |