CN106948492A - A kind of self-driven lock prestressing force attachment structure and connection method - Google Patents
A kind of self-driven lock prestressing force attachment structure and connection method Download PDFInfo
- Publication number
- CN106948492A CN106948492A CN201710314442.7A CN201710314442A CN106948492A CN 106948492 A CN106948492 A CN 106948492A CN 201710314442 A CN201710314442 A CN 201710314442A CN 106948492 A CN106948492 A CN 106948492A
- Authority
- CN
- China
- Prior art keywords
- piston
- lock
- connection method
- locking part
- thrust chamber
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention is proposed at a kind of self-driven lock prestressing force attachment structure and connection method, including plug pin portion and the plug-connection structure of locking part formation, the locking part provided with lock；The plug pin portion includes pin cylinder and piston；The piston side wall is fitted at pin medial wall of the tube and slid, and piston one end is the latch ends in ladder shaft-like, and the end face of the other end surrounds the first thrust chamber jointly with pin cylinder inwall；The pin cylinder open at one end adjacent with piston latch ends, sell and snap ring is provided with cylinder open end, when latch ends are passed from snap ring annular distance and probe into the lock of locking part, latch ends are snapped fixation, the diameter portion of the multi-diameter shaft of latch ends is fitted at snap ring annular distance, and multi-diameter shaft diameter portion surrounds the second thrust chamber jointly with pin cylinder inwall, snap ring；The first thrust chamber side-walls are provided with compression injected hole；Second thrust chamber side-walls are provided with tension injected hole；The present invention fast can advantageously realize more economical prestressing force attachment structure with inserting mode.
Description
Technical field
The present invention relates to building element field, especially a kind of self-driven lock prestressing force attachment structure and connection side
Method.
Background technology
In recent years, connected structure is applied in building element connection, and this structure, which has, to weld, convenient to carry out
Advantage, but this structure need to such as carry out autofrettage, then need to realize compared with multiple operation and equipment so that connected structure is pre-
Need to put into certain cost in stress processing, how to realize convenient and economic prestressing force connected structure, be a research direction.
The content of the invention
The present invention proposes a kind of self-driven lock prestressing force attachment structure and connection method, can be quick just with inserting mode
More economical prestressing force attachment structure is realized sharply.
The present invention uses following technical scheme.
A kind of self-driven lock prestressing force attachment structure and connection method, the attachment structure are with plug pin portion and with inserting
Provided with lock at the plug-connection structure that the locking part of pin portion matching is formed through latch grafting, the locking part；The plug pin portion includes
Sell cylinder and piston；The piston side wall is fitted at pin medial wall of the tube and slid, and piston one end is the latch ends in ladder shaft-like, separately
The end face of one end surrounds the first thrust chamber jointly with pin cylinder inwall；Pin cylinder one end adjacent with piston latch ends is opened
Open, snap ring, when latch ends are passed from snap ring annular distance and probe into the lock of locking part, latch ends quilt are provided with pin cylinder open end
Lock is fixed, and the diameter portion of the multi-diameter shaft of latch ends is fitted at snap ring annular distance, and multi-diameter shaft diameter portion and pin cylinder are interior
Wall, snap ring surround the second thrust chamber jointly；The first thrust chamber side-walls are provided with compression injected hole；The second thrust chamber
Side-walls are provided with tension injected hole.
When injecting liquid into compression injected hole, the hydraulic drive piston of the first thrust chamber makes piston latch ends to pin
Cylinder open end is leant out；When injecting liquid into tension injected hole, the hydraulic pressure of the second thrust chamber reversely promote piston be allowed to
Sell cylinder retraction；When piston is snapped it is fixed when, the action that leans out of piston makes piston compression deformation and produces compressive pre-stress, piston
Retracting action makes the deformation of piston tension and produces pre-tensile stress.
The liquid is that can voluntarily adjust the rapid solidification liquid of solidification.
The connection method of the prestressing force attachment structure includes compressive pre-stress connection method and pre-tensile stress connection method.
The compressive pre-stress connection method comprises the following steps successively；
A1, need to be to be respectively mounted plug pin portion and locking part on two workpiece of compressive pre-stress connection method, and make the work of plug pin portion
Fill in the proper lock to locking part of latch；
A2, make tension injected hole keep it is unimpeded with row pressure, into compression injected hole with predetermined pressure inject rapid solidification liquid
Body, the hydraulic drive piston of the first thrust chamber makes piston latch ends be leant out to pin cylinder open end, when latch ends are from snap ring annular distance
When passing and probeing into the lock of locking part, latch ends are snapped fixation；Piston deformation under the pressure of the first thrust chamber produces pre-
Compression；Then all injected holes are blocked to maintain hydraulic pressure；
A3, after rapid solidification liquid solidifies, the piston of deformed state is to be fixed at locking part lock, connects compressive pre-stress
Connect shaping structures.
The pre-tensile stress connection method comprises the following steps successively；
B1, need to be to be respectively mounted plug pin portion and locking part on two workpiece of compressive pre-stress connection method, and make the work of plug pin portion
Fill in the proper lock to locking part of latch；
B2, make tension injected hole unimpeded with row pressure, then inject gases at high pressure into compression injected hole or it is injected with pressure
His flowable liquid, the pressure of the first thrust chamber promotes the piston piston latch ends is leant out to pin cylinder open end, works as latch ends
When being passed from snap ring annular distance and probeing into the lock of locking part, latch ends are snapped fixation；
B3, make compression injected hole unimpeded with to the first thrust chamber row pressure, it is fast with predetermined pressure injection into tension injected hole
Rapid hardening solid-liquid, the hydraulic drive piston of the second thrust chamber is to pin cylinder place retraction；Fixed piston is snapped in the second thrust chamber
Pressure under deformation, produce pre-tensile stress；
B4, the stability hydraulic of the second thrust chamber of maintenance are until rapid solidification liquid solidifies, and the piston of deformed state is to be fixed in
At locking part lock, it is molded pre-tensile stress attachment structure.
The compressive pre-stress, the size of pre-terminated stress are together decided on by slip casting pressure and piston cross-section.
The lock that the locking part includes the lock cylinder of open at one end and coordinated with piston latch ends；The lock is placed in lock cylinder
Interior, when plug pin portion and locking part progress socket connection, lock cylinder open end is close at pin cylinder open end.
The piston is molded with having the high-strength metal material of elasticity.
The present invention applies prestressing force due to coming with the slip casting hydraulic structure carried to attachment structure, greatly reduces prestressing force
The device requirement of processing procedure, advantageously reduces cost, and is conducive to the construction of the modularization and assembling of architectural workpieces, when
When this attachment structure is pre-installed at architectural workpieces, architectural workpieces are to have possessed under the cooperation of Simple hydraulic equipment, and autonomous apply in advance should
The ability of power, so as to make site operation more convenient, when needing to increase prestressing force, also only needs oversize piston diameter and pin cylinder straight
Footpath, or increase slip casting pressure, you can strengthen prestressing force by hydraulic principle, facilitate site operation.
In the present invention, rapid solidification liquid is employed during due to slip casting, therefore the present invention can be formed not after slip casting solidification
Dismountable firm connection.
Product of the present invention, can directly be assembled after construction site directly applies prestressing force so that be applied
Prestressing force can be rapidly used for construction, so as to be prevented effectively from traditional prestressing force product because long-term placement causes prestressed failure
The problem of.
In the present invention, due to producing prestressing force with piston deformation, therefore the pre- of attachment structure of the present invention generation should
Power effect and associating for workpiece material are smaller, so that not only prestressed structure can be used for the workpiece such as reinforcing bar, moreover it is possible to which this is sent out
Bright prestressed structure is used for the concrete structure for being difficult deformation, has expanded the application field of prestressed structure.
The present invention due to generating prestressing force with the slip casting hydraulic structure carried, even if therefore this product not with outside workpiece
Connection, can also produce prestressing force, therefore in practicality, can directly exist after voluntarily grafting, slip casting at the piston of plug pin portion
This product is made in factory the small-sized auxiliary connection of preset stress（Only include plug pin portion and locking part）Afterwards, then auxiliary connection with
Workpiece is fixed, so as to extend the mounting means of product, and is readily transported.
Brief description of the drawings
The present invention is described in more detail with reference to the accompanying drawings and detailed description：
Accompanying drawing 1 be plug pin portion of the present invention piston latch ends lean out pin cylinder open end when schematic diagram；
Accompanying drawing 2 is the original state schematic diagram of plug pin portion of the present invention；
Accompanying drawing 3 is the original state schematic diagram of locking part of the present invention；
Accompanying drawing 4 is the connection diagram of the compressive pre-stress connection method of the present invention；
Accompanying drawing 5 is the connection diagram of the pre-tensile stress connection method of the present invention；
In figure：1- pistons；2- multi-diameter shafts；The latch ends of 3- pistons；4- snap rings；5- tension injected holes；The grouting stop-valves of 6- second；7-
Second thrust chamber；The diameter portion of 8- multi-diameter shafts；The grouting stop-valves of 9- first；10- compression injected holes；11- workpiece；12- first
Thrust chamber；13- sells cylinder；14- lock cylinders；15- is latched；16- liquid；17- plug pin portions；18- locking parts.
Embodiment
As Figure 1-4, a kind of self-driven lock prestressing force attachment structure and connection method, the attachment structure be with
Provided with lock 15 at the plug-connection structure that plug pin portion and the locking part matched with plug pin portion are formed through latch grafting, the locking part；
The plug pin portion includes pin cylinder 13 and piston 1；The side wall of piston 1 is fitted in be slid at pin 13 madial walls of cylinder, and the one end of piston 1 is
In the latch ends 3 of ladder shaft-like, the end face of the other end surrounds the first thrust chamber 12 jointly with the pin 13 inwalls of cylinder；The pin cylinder
Snap ring 4 is provided with 13 open at one end adjacent with piston latch ends 3, pin cylinder open end, when latch ends 3 are worn from the annular distance of snap ring 4
When going out and probeing into the lock 15 of locking part, latch ends 3 are snapped 15 fixations, and the diameter portion 8 of the multi-diameter shaft 2 of latch ends 3 is pasted
At the annular distance of snap ring 4, multi-diameter shaft diameter portion 8 surrounds the second thrust chamber 7 jointly with 13 inwalls of pin cylinder, snap ring 4；Described
The side-walls of one thrust chamber 12 are provided with compression injected hole 10；The side-walls of second thrust chamber 7 are provided with tension injected hole 5.
When injecting liquid 16 into compression injected hole 10, the hydraulic drive piston of the first thrust chamber makes piston latch ends
Leant out to pin cylinder open end；When injecting liquid into tension injected hole, the hydraulic pressure of the second thrust chamber reversely promotes the piston to make
To pin cylinder bounce back；When piston is snapped it is fixed when, the action that leans out of piston makes piston compression deformation and produces compressive pre-stress, living
The retracting action of plug makes the deformation of piston tension and produces pre-tensile stress.
The liquid 16 is that can voluntarily adjust the rapid solidification liquid of solidification.
The connection method of the prestressing force attachment structure includes compressive pre-stress connection method and pre-tensile stress connection method.
The compressive pre-stress connection method comprises the following steps successively；
A1, need to be to be respectively mounted plug pin portion and locking part on two workpiece of compressive pre-stress connection method, and make the work of plug pin portion
Fill in the proper lock to locking part of latch；
A2, make tension injected hole keep it is unimpeded with row pressure, into compression injected hole with predetermined pressure inject rapid solidification liquid
Body, the hydraulic drive piston of the first thrust chamber makes piston latch ends be leant out to pin cylinder open end, when latch ends are from snap ring annular distance
When passing and probeing into the lock of locking part, latch ends are snapped fixation；Piston deformation under the pressure of the first thrust chamber produces pre-
Compression；Then all injected holes are blocked to maintain hydraulic pressure；
A3, after rapid solidification liquid solidifies, the piston of deformed state is to be fixed at locking part lock, connects compressive pre-stress
Connect shaping structures.
The pre-tensile stress connection method comprises the following steps successively；
B1, need to be to be respectively mounted plug pin portion and locking part on two workpiece of compressive pre-stress connection method, and make the work of plug pin portion
Fill in the proper lock to locking part of latch；
B2, make tension injected hole unimpeded with row pressure, then inject gases at high pressure into compression injected hole or it is injected with pressure
His flowable liquid, the pressure of the first thrust chamber promotes the piston piston latch ends is leant out to pin cylinder open end, works as latch ends
When being passed from snap ring annular distance and probeing into the lock of locking part, latch ends are snapped fixation；
B3, make compression injected hole unimpeded with to the first thrust chamber row pressure, it is fast with predetermined pressure injection into tension injected hole
Rapid hardening solid-liquid, the hydraulic drive piston of the second thrust chamber is to pin cylinder place retraction；Fixed piston is snapped in the second thrust chamber
Pressure under deformation, produce pre-tensile stress；
B4, the stability hydraulic of the second thrust chamber of maintenance are until rapid solidification liquid solidifies, and the piston of deformed state is to be fixed in
At locking part lock, it is molded pre-tensile stress attachment structure.
The compressive pre-stress, the size of pre-terminated stress are together decided on by slip casting pressure and piston cross-section.
The lock that the locking part includes the lock cylinder of open at one end and coordinated with piston latch ends；The lock is placed in lock cylinder
Interior, when plug pin portion and locking part progress socket connection, lock cylinder open end is close at pin cylinder open end.
The piston 1 is molded with having the high-strength metal material of elasticity.
Embodiment 1：
Workmen is respectively mounted plug pin portion and locking part in the architectural workpieces 11 that need to be connected, by Grouting Pipe to the first thrust
Injection rapid solidification liquid in chamber；After the piston latch ends push-in locking part of plug pin portion, the first grouting stop-valve 9 is closed, makes first
Thrust intraluminal fluid pressure is maintained until liquid curing, and now plug pin portion and locking part, which are fixed as one, to form auxiliary connection and built to two
Build workpiece 11 to be attached, and possess compressive pre-stress in auxiliary connection.
Embodiment 2：
Workmen, by B2, B3, B4 step operation of pre-tensile stress connection method, makes laminating after plug pin portion and locking part laminating
Plug pin portion and locking part form the auxiliary connection of built-in pre-tensile stress, then two building elements are attached with this auxiliary connection.
Claims (10)
1. a kind of self-driven lock prestressing force attachment structure and connection method, it is characterised in that：The attachment structure is with slotting
Provided with lock at the plug-connection structure that pin portion and the locking part matched with plug pin portion are formed through latch grafting, the locking part；It is described
Plug pin portion includes pin cylinder and piston；The piston side wall is fitted at pin medial wall of the tube and slid, and piston one end is in ladder shaft-like
Latch ends, the end face of the other end and the pin cylinder inwall surrounds the first thrust chamber jointly；The pin cylinder and piston latch ends phase
Snap ring is provided with adjacent open at one end, pin cylinder open end, when latch ends are passed from snap ring annular distance and probe into the lock of locking part
When, latch ends are snapped fixation, and the diameter portion of the multi-diameter shaft of latch ends is fitted at snap ring annular distance, multi-diameter shaft major diameter portion
Divide and surround the second thrust chamber jointly with pin cylinder inwall, snap ring；The first thrust chamber side-walls are provided with compression injected hole；It is described
Second thrust chamber side-walls are provided with tension injected hole.
2. a kind of self-driven lock prestressing force attachment structure according to claim 1 and connection method, it is characterised in that：
When injecting liquid into compression injected hole, the hydraulic drive piston of the first thrust chamber makes piston latch ends to pin cylinder open end
Lean out；When injecting liquid into tension injected hole, the hydraulic pressure of the second thrust chamber reversely promotes piston to be allowed to bounce back to pin cylinder；
When piston is snapped it is fixed when, the action that leans out of piston makes piston compression deformation and produces compressive pre-stress, the retracting action of piston
Make the deformation of piston tension and produce pre-tensile stress.
3. a kind of self-driven lock prestressing force attachment structure according to claim 2 and connection method, it is characterised in that：
The liquid is that can voluntarily adjust the rapid solidification liquid of solidification.
4. a kind of self-driven lock prestressing force attachment structure according to claim 3 and connection method, it is characterised in that：
The connection method of the prestressing force attachment structure includes compressive pre-stress connection method and pre-tensile stress connection method.
5. a kind of self-driven lock prestressing force attachment structure according to claim 4 and connection method, it is characterised in that：
The compressive pre-stress connection method comprises the following steps successively；
A1, need to be to be respectively mounted plug pin portion and locking part on two workpiece of compressive pre-stress connection method, and make the work of plug pin portion
Fill in the proper lock to locking part of latch；
A2, make tension injected hole keep it is unimpeded with row pressure, into compression injected hole with predetermined pressure inject rapid solidification liquid
Body, the hydraulic drive piston of the first thrust chamber makes piston latch ends be leant out to pin cylinder open end, when latch ends are from snap ring annular distance
When passing and probeing into the lock of locking part, latch ends are snapped fixation；Piston deformation under the pressure of the first thrust chamber produces pre-
Compression；Then all injected holes are blocked to maintain hydraulic pressure；
A3, after rapid solidification liquid solidifies, the piston of deformed state is to be fixed at locking part lock, connects compressive pre-stress
Connect shaping structures.
6. a kind of self-driven lock prestressing force attachment structure according to claim 4 and connection method, it is characterised in that：
The pre-tensile stress connection method comprises the following steps successively；
B1, need to be to be respectively mounted plug pin portion and locking part on two workpiece of compressive pre-stress connection method, and make the work of plug pin portion
Fill in the proper lock to locking part of latch；
B2, make tension injected hole unimpeded with row pressure, then inject gases at high pressure into compression injected hole or it is injected with pressure
His flowable liquid, the pressure of the first thrust chamber promotes the piston piston latch ends is leant out to pin cylinder open end, works as latch ends
When being passed from snap ring annular distance and probeing into the lock of locking part, latch ends are snapped fixation；
B3, make compression injected hole unimpeded with to the first thrust chamber row pressure, it is fast with predetermined pressure injection into tension injected hole
Rapid hardening solid-liquid, the hydraulic drive piston of the second thrust chamber is to pin cylinder place retraction；Fixed piston is snapped in the second thrust chamber
Pressure under deformation, produce pre-tensile stress；
B4, the stability hydraulic of the second thrust chamber of maintenance are until rapid solidification liquid solidifies, and the piston of deformed state is to be fixed in
At locking part lock, it is molded pre-tensile stress attachment structure.
7. a kind of self-driven lock prestressing force attachment structure according to claim 2 and connection method, it is characterised in that：
The compressive pre-stress, the size of pre-terminated stress are together decided on by slip casting pressure and piston cross-section.
8. a kind of self-driven lock prestressing force attachment structure according to claim 1 and connection method, it is characterised in that：
The lock that the locking part includes the lock cylinder of open at one end and coordinated with piston latch ends；The lock is placed in lock cylinder, when slotting
When pin portion and locking part carry out socket connection, lock cylinder open end is close at pin cylinder open end.
9. a kind of self-driven lock prestressing force attachment structure according to claim 1 and connection method, it is characterised in that：
The first grouting stop-valve is provided with the compression injected hole；The second grouting stop-valve is provided with the tension injected hole.
10. a kind of self-driven lock prestressing force attachment structure according to claim 1 and connection method, its feature exist
In：The piston is molded with having the high-strength metal material of elasticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710314442.7A CN106948492B (en) | 2017-05-06 | 2017-05-06 | Self-driven pin lock prestress connecting structure and connecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710314442.7A CN106948492B (en) | 2017-05-06 | 2017-05-06 | Self-driven pin lock prestress connecting structure and connecting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106948492A true CN106948492A (en) | 2017-07-14 |
| CN106948492B CN106948492B (en) | 2023-05-02 |
Family
ID=59478217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710314442.7A Active CN106948492B (en) | 2017-05-06 | 2017-05-06 | Self-driven pin lock prestress connecting structure and connecting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106948492B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759942A (en) * | 2017-03-01 | 2017-05-31 | 邓剑涛 | A kind of the welding lock attachment structure and its construction method of one solidification |
| WO2021109911A1 (en) * | 2019-12-06 | 2021-06-10 | 邓剑涛 | Connection structure capable of bidirectional prestress adjustment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001262981A (en) * | 2000-03-21 | 2001-09-26 | Yamax Corp | Coupling method and coupling device for concrete attachment |
| CN101424100A (en) * | 2008-12-09 | 2009-05-06 | 颜小荣 | Connecting apparatus of reinforced concrete precast member |
| CN101519877A (en) * | 2008-03-17 | 2009-09-02 | 周兆弟 | Multi-headed fast tearing butt coupler and fabricated part |
| CN204781349U (en) * | 2015-06-25 | 2015-11-18 | 周兆弟 | But connecting piece of roll adjustment |
| CN105350640A (en) * | 2015-11-19 | 2016-02-24 | 李全民 | A machinery connecting device between assembly type concrete prefabricated units and an operation method |
-
2017
- 2017-05-06 CN CN201710314442.7A patent/CN106948492B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001262981A (en) * | 2000-03-21 | 2001-09-26 | Yamax Corp | Coupling method and coupling device for concrete attachment |
| CN101519877A (en) * | 2008-03-17 | 2009-09-02 | 周兆弟 | Multi-headed fast tearing butt coupler and fabricated part |
| CN101424100A (en) * | 2008-12-09 | 2009-05-06 | 颜小荣 | Connecting apparatus of reinforced concrete precast member |
| CN204781349U (en) * | 2015-06-25 | 2015-11-18 | 周兆弟 | But connecting piece of roll adjustment |
| CN105350640A (en) * | 2015-11-19 | 2016-02-24 | 李全民 | A machinery connecting device between assembly type concrete prefabricated units and an operation method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759942A (en) * | 2017-03-01 | 2017-05-31 | 邓剑涛 | A kind of the welding lock attachment structure and its construction method of one solidification |
| WO2021109911A1 (en) * | 2019-12-06 | 2021-06-10 | 邓剑涛 | Connection structure capable of bidirectional prestress adjustment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106948492B (en) | 2023-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2998566B1 (en) | Fuel distributor | |
| CN109611129A (en) | It can contracting formula the stressed-arch structures and construction method | |
| JP4852378B2 (en) | Reinforced joint half sleeve, joint using the half sleeve, and precast reinforced concrete molded product | |
| JP5258099B2 (en) | Prestressed concrete pile, method for manufacturing the same, and method for connecting pile head and footing | |
| CN104385454A (en) | Common threaded steel tensioning device and prefabricated square pile process | |
| CN106948492A (en) | A kind of self-driven lock prestressing force attachment structure and connection method | |
| CN105666688B (en) | A kind of prefabricated pile, pile body and production method | |
| CN209557014U (en) | One kind can contracting formula the stressed-arch structures | |
| CN103469967B (en) | Steel bar connecting sleeve of fabricated constructional member of reinforced concrete member | |
| CN102505806B (en) | Connection device special for prestressed reinforcement with screw thread at end head | |
| CN105729621A (en) | Concrete member prefabrication component | |
| CN107269019A (en) | The device and method of very-high performance fiber concrete prefabricated pipe section hoop constraint reinforced concrete column | |
| CN202658721U (en) | Connecting structure of cast steel joint | |
| KR101468037B1 (en) | The filler injection coupler for an iron reinforcing rod | |
| CN207582682U (en) | A kind of adjustable double-head connecting rod from driving | |
| CN108204130A (en) | Concrete filled steel tube pressing shaping device and method | |
| CN210100330U (en) | Pile making device for prestressed concrete pile | |
| CN111997672B (en) | Collaborative prestress array anchor rod device and construction method thereof | |
| CN212612443U (en) | Staple bolt formula benefit stake device | |
| CN107842377A (en) | Utilize the big stroke bellows damper of performance behind material peak | |
| CN207140063U (en) | A kind of tensioning mechanism of prestressed concrete member | |
| CN210562989U (en) | Assembled steel structure post is connected grout anchor joint with post | |
| JP4204260B2 (en) | Steel pipe connection method and connection structure for pipe roof construction method | |
| CN208946627U (en) | A kind of expansion shell type prestressing force grouted anchor bar plastic tube process units | |
| JP2010185205A (en) | Reinforcement joint and method for connecting reinforcement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |