CN110396927A - For bridge tower transverse direction bonded prestress rod iron anchoring assembly and construction method - Google Patents
For bridge tower transverse direction bonded prestress rod iron anchoring assembly and construction method Download PDFInfo
- Publication number
- CN110396927A CN110396927A CN201910611094.9A CN201910611094A CN110396927A CN 110396927 A CN110396927 A CN 110396927A CN 201910611094 A CN201910611094 A CN 201910611094A CN 110396927 A CN110396927 A CN 110396927A
- Authority
- CN
- China
- Prior art keywords
- rod iron
- anchoring assembly
- bar
- steel
- anchor plate
- 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.)
- Pending
Links
- 229910000754 Wrought iron Inorganic materials 0.000 title claims abstract description 39
- 238000004873 anchoring Methods 0.000 title claims abstract description 37
- 238000010276 construction Methods 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 96
- 239000010959 steel Substances 0.000 claims abstract description 96
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 5
- 230000013011 mating Effects 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 2
- 235000000396 iron Nutrition 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
Abstract
The present invention relates to one kind to be used for bridge tower transverse direction bonded prestress rod iron anchoring assembly and construction method, anchoring assembly structure: the injected hole on anchor plate is communicated with the hole on steel plate, two positioning steel tubes are welded on anchor plate, a spiral bar is through in every positioning steel tube, every spiral bar is fixed on anchor plate by a screw, anchor plate bottom is bonded welding with steel plate, and steel plate and capping, which are welded at the top of square steel tube, forms anchor box.In bridge tower construction, which is installed in advance, precise positioning prestressed steel bar screws locking anchoring using Standard fine thread, substantially increases the anchoring property of bonded prestress rod iron；Front end is extended bar tensioning, and high-strength rubber hose is connected a mud jacking, is simplified prestressed construction technology, has been effectively compressed the construction process period.Anchoring assembly in the present invention has the advantages such as easy to operate, construction precision is high, and tension stress and elongation consistency are strong, is processed using high strength nut regularization, and disposable accurate tensioning, bilayer ensures.
Description
Technical field:
The invention belongs to science of bridge building fields, relate generally to a kind of for bridge tower transverse direction bonded prestress rod iron anchoring group
Part and construction method are suitable for science of bridge building Sarasota transverse prestress and construct.
Background technique:
Tradition prestressing force product is commonly used in bridge construction, and there are two main classes: steel strand wires intermediate plate anchor (long term distance) and finish rolling
Screw-thread steel anchor (in, short distance).Steel strand wires intermediate plate anchor material retraction amount is big, and construction stress loss is larger, while steel are cold worked
The lower antidetonation energy absorption capacity of elongation percentage is poor；And the Material Relaxation rate of fining twisted steel anchor is higher, easily leads to biggish prestressing force damage
It loses.Its intensity is low, steel can only be caused to waste by increasing bar diameter to meet requirement for bearing capacity.Traditional finish rolling screw thread
Two kinds of anchorages of steel anchor and steel strand wires intermediate plate anchor have biggish construction stress to lose, the rigidity and stability influence of transverse splicing
The durability and reliability of bridge.
Summary of the invention:
For the present invention in order to overcome the above-mentioned problems of the prior art and disadvantage, providing one kind for bridge tower laterally has bonding
Prestressed steel bar anchoring assembly and construction method install the anchoring assembly, precise positioning prestress steel in bridge tower construction in advance
Stick, the anchoring assembly in the present invention have the advantages such as easy to operate, construction precision is high, and tension stress and elongation consistency are strong,
Processed using high strength nut regularization, disposable accurate tensioning, bilayer ensures, efficiently solve traditional intermediate plate anchor amount of recovery compared with
Greatly, the problems such as stress loss is big, and stretching construction is cumbersome.Standard fine thread screws locking anchoring, and it is pre- to have substantially increased bonding
The anchoring property of stress rod iron；Front end is extended bar tensioning, and high-strength rubber hose is connected a mud jacking, simplifies pre-stress construction work
Skill has been effectively compressed the construction process period.
The technical solution that the present invention realizes is:
For bridge tower transverse direction bonded prestress rod iron anchoring assembly, including two positioning steel tubes, two spiral bars, anchor pad
Plate, square steel tube, steel plate, it is characterised in that: set on anchor plate there are two location hole and an injected hole, steel plate is equipped with Kong Bingyu
Injected hole communicates, and two positioning steel tube correspondences are welded on two location holes of anchor plate, and a spiral shell is through in every positioning steel tube
Muscle is revolved, every spiral bar is fixed on anchor plate by a screw, and every spiral bar is connected by positioning steel tube with anchor plate,
Anchor plate bottom is bonded welding with steel plate, and steel plate and capping, which are welded at the top of square steel tube, forms anchor box.
The positioning steel tube is diameter 60mm, with a thickness of 5mm round steel pipe.
It is fully welded at the top of the positioning steel tube and anchor plate.
The spiral bar is diameter 8mm round steel.
The anchor plate is the mating anchor plate of bonded prestress rod iron.
The square steel tube cross section parameter is 250 × 150 × 12mm, long 150mm.
The steel plate is 250 × 150mm, with a thickness of 12mm.
The steel plate edge connect to use with square steel tube and be fully welded.
Construction method for bridge tower transverse direction bonded prestress rod iron anchoring assembly, it is characterised in that according to the following steps into
Row: the square steel tube of each rod iron anchoring assembly is welded and fixed in king-post reinforcing bar process of binding with positioning bar, then installs metal wave
Line pipe and prestressed steel bar；After molding casting concrete, passed through after king-post concrete reaches requirement using centre-hole jack
Bar tensioning of extending is completed；Using all rod iron anchoring assemblies of high-strength rubber tube series connection, vaccum pulp absorbing carries out mud jacking, and last sealing off and covering anchorage is complete
It constructs at transverse prestress；Below specific steps and method:
(1) rod iron anchoring assembly and prestressing force location and installation: the square steel tube of each rod iron anchoring assembly is tied up in king-post reinforcing bar
It is welded and fixed during bundle with positioning bar, the positioning steel tube of metal bellows both ends and two sides connects closing, then is having bonding pre-
Bonded prestress rod iron and gasket are installed on the mating anchor plate of stress rod iron, tighten bolt-nut；
(2) prestressed steel bar tensioning: start tensioning after concrete strength reaches design requirement, stretching end passes through bar of extending
It is connect with prestressed steel bar end silk mouth, centre-hole jack is installed, bolt-nut is locked；Using single branch single hop stretching mode
It pulls into；
(3) prestress pipe connects: after the completion of tensioning, using the longitudinal single-row anchor plate of high-strength rubber tube series connection, guaranteeing note
Starch hole airtightness；
(4) it vacuum grouting: is connect, is made with anchor plate injected hole at the top of king-post top prestressed steel bar using vacuum-pumping tube
It is starched with vacuum pumping；It is connect using madjack pipe with king-post bottom prestressed steel bar bottom anchor plate injected hole, using mudjack
Mud jacking is carried out in bottom；Slip casting can be completed when pulp is smooth, stable and consistency is consistent.
Anchoring assembly in the present invention has easy to operate, construction precision is high, and tension stress and elongation consistency are strong etc.
Advantage is processed using high strength nut regularization, efficiently solves that traditional intermediate plate anchor amount of recovery is larger, stress loss is big, tensioning
It constructs the problems such as cumbersome.
Detailed description of the invention:
Fig. 1 is present apparatus front view；
Fig. 2 is present apparatus top view；
Fig. 3 is the connection schematic diagram of the present apparatus and prestressed steel bar；
Fig. 4 is present apparatus stretching construction schematic diagram；
Fig. 5 is present apparatus mud jacking construction schematic diagram.
Specific embodiment:
The present invention will be described in detail with reference to the accompanying drawing:
As shown in Figure 1 and Figure 2, the inventive system comprises two positioning steel tubes 1, two spiral bar 3, anchor plates 4, square steel
Pipe 5, steel plate 6, it is characterised in that: set on anchor plate 4 there are two location hole and an injected hole 7, steel plate 6 is infused equipped with Kong Bingyu
Slurry hole 7 communicates, and two correspondences of positioning steel tube 1 are welded on two location holes of anchor plate 4, is through at one in every positioning steel tube 1
Spiral bar 3, every spiral bar 3 are fixed on anchor plate 4 by a M6 screw 2, and every spiral bar 3 passes through positioning steel tube 1 and anchor
Backing plate 4 is connected, and 4 bottom of anchor plate is bonded welding with steel plate 6, and steel plate 6 and capping are welded on formation anchor box at the top of square steel tube 5；
The positioning steel tube 1 is diameter 60mm, the round steel pipe with a thickness of 5mm.It is fully welded at the top of the positioning steel tube 1 and anchor plate 4,
And interior wear a spiral bar 3.The spiral bar 3 is diameter 8mm round steel, uses M6 screw 2 and anchor plate 4 fixed.Described
Anchor plate 4 is the mating anchor plate of bonded prestress rod iron.5 cross section parameter of square steel tube is 250 × 150 × 12mm, long
150mm.The steel plate 6 is 250 × 150mm, with a thickness of 12mm.6 edge of steel plate is connect using full with square steel tube 5
Weldering.
As shown in figure 3, figure 4 and figure 5, a kind of construction party of the lateral bonded prestress rod iron anchoring assembly for bridge tower
Method, it is characterised in that it is in king-post reinforcing bar process of binding and fixed to sequentially include the following steps: the square steel tube 5 of each rod iron anchoring assembly
Position muscle is welded and fixed, then installs metal bellows and prestressed steel bar；After molding casting concrete, reaches to king-post concrete and set
Meter is completed using centre-hole jack by bar tensioning of extending after requiring；Use all rod iron anchoring groups of high-strength rubber tube series connection
Part, vaccum pulp absorbing carry out mud jacking, and last sealing off and covering anchorage completes transverse prestress construction；Below specific steps and method:
(1) rod iron anchoring assembly and prestressing force location and installation: as shown in figure 3, the square steel tube 5 of rod iron anchoring assembly is in king-post
It being welded and fixed in reinforcing bar process of binding with positioning bar, the positioning steel tube 1 of 8 both ends of metal bellows and two sides, which connects, to be closed, then
Bonded prestress rod iron 9 and gasket 10 are installed on the mating anchor plate of bonded prestress rod iron, tighten bolt-nut 11；
(2) prestressed steel bar tensioning: as shown in figure 4, starting tensioning, stretching end after concrete strength reaches design requirement
It is connect by extending bar 12 with 9 end of prestressed steel bar silk mouth, centre-hole jack 13 is installed, bolt-nut 11 is locked；Using
Single branch single hop stretching mode tensioning is completed；
(3) prestress pipe connects: as shown in figure 5, after the completion of tensioning, being connected longitudinal single-row anchor using high-strength rubber tube 14
Backing plate 4 guarantees injected hole airtightness；
(4) vacuum grouting: as shown in figure 5, using vacuum-pumping tube 20 and 19 top prestressed steel bar of king-post, 9 top anchor pad
Plate injected hole 7 connects, and is taken out and is starched using vacuum pump 18；Use madjack pipe 15 and 19 bottom prestressed steel bar of king-post, 9 bottom anchor pad
Plate injected hole 7 connects, and carries out mud jacking in bottom using mudjack 15；It can be completed when pulp is smooth, stable and consistency is consistent
Slip casting.
The present invention exists to overcome the problems, such as above-mentioned existing traditional prestressing technique and disadvantage, fixed using high strength nut
Typeization processing, disposable accurate tensioning, while connecting plate welding and the artificial locking mode of prestressed steel bar bolt-nut are taken, it is double
Layer ensures, increases safety coefficient.With easy to operate, construction precision is high, the advantages such as tension stress and elongation consistency are strong have
Effect solves the problems such as traditional intermediate plate anchor amount of recovery is larger, stress loss is big, and stretching construction is cumbersome, greatly improves bridge structure
Service life.
Claims (9)
1. being used for bridge tower transverse direction bonded prestress rod iron anchoring assembly, including two positioning steel tubes, two spiral bars, anchor pad
Plate, square steel tube, steel plate, it is characterised in that: set on anchor plate there are two location hole and an injected hole, steel plate is equipped with Kong Bingyu
Injected hole communicates, and two positioning steel tube correspondences are welded on two location holes of anchor plate, and a spiral shell is through in every positioning steel tube
Muscle is revolved, every spiral bar is fixed on anchor plate by a screw, and every spiral bar is connected by positioning steel tube with anchor plate,
Anchor plate bottom is bonded welding with steel plate, and steel plate and capping, which are welded at the top of square steel tube, forms anchor box.
2. according to claim 1 be used for bridge tower transverse direction bonded prestress rod iron anchoring assembly, it is characterised in that: described
Positioning steel tube be diameter 60mm, with a thickness of 5mm round steel pipe.
3. according to claim 1 be used for bridge tower transverse direction bonded prestress rod iron anchoring assembly, it is characterised in that: described
Positioning steel tube and anchor plate at the top of be fully welded.
4. according to claim 1 be used for bridge tower transverse direction bonded prestress rod iron anchoring assembly, it is characterised in that: described
Spiral bar be diameter 8mm round steel.
5. according to claim 1 be used for bridge tower transverse direction bonded prestress rod iron anchoring assembly, it is characterised in that: described
Anchor plate be the mating anchor plate of bonded prestress rod iron.
6. according to claim 1 be used for bridge tower transverse direction bonded prestress rod iron anchoring assembly, it is characterised in that: described
Square steel tube cross section parameter be 250 × 150 × 12mm, long 150mm.
7. according to claim 1 be used for bridge tower transverse direction bonded prestress rod iron anchoring assembly, it is characterised in that: described
Steel plate be 250 × 150mm, with a thickness of 12mm.
8. according to claim 1 be used for bridge tower transverse direction bonded prestress rod iron anchoring assembly, it is characterised in that: described
Steel plate edge connect with square steel tube using being fully welded.
9. a kind of applying for bridge tower transverse direction bonded prestress rod iron anchoring assembly described in one of -8 according to claim 1
Work method, it is characterised in that sequentially include the following steps: the square steel tube of each rod iron anchoring assembly in king-post reinforcing bar process of binding
It is welded and fixed with positioning bar, then metal bellows and prestressed steel bar is installed；After molding casting concrete, reached to king-post concrete
It is completed using centre-hole jack by bar tensioning of extending after to design requirement；It is anchored using all rod irons of high-strength rubber tube series connection
Component, vaccum pulp absorbing carry out mud jacking, and last sealing off and covering anchorage completes transverse prestress construction；Below specific steps and method:
(1) rod iron anchoring assembly and prestressing force location and installation: the square steel tube of each rod iron anchoring assembly was bound in king-post reinforcing bar
Cheng Zhongyu positioning bar is welded and fixed, and the positioning steel tube of metal bellows both ends and two sides connects closing, then in bonded prestress
Bonded prestress rod iron and gasket are installed on the mating anchor plate of rod iron, tighten bolt-nut；
(2) prestressed steel bar tensioning: reaching design requirement in concrete strength and start tensioning, stretching end by extend bar with answer in advance
The silk mouth connection of power rod iron end, installs centre-hole jack, locks bolt-nut；It is complete using single branch single hop stretching mode tensioning
At；
(3) prestress pipe connects: after the completion of tensioning, using the longitudinal single-row anchor plate of high-strength rubber tube series connection, guaranteeing injected hole
Airtightness；
(4) it vacuum grouting: is connect using vacuum-pumping tube with anchor plate injected hole at the top of king-post top prestressed steel bar, using true
Empty pumping slurry；It is connect using madjack pipe with king-post bottom prestressed steel bar bottom anchor plate injected hole, using mudjack the bottom of at
Portion carries out mud jacking；Slip casting can be completed when pulp is smooth, stable and consistency is consistent.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910611094.9A CN110396927A (en) | 2019-07-08 | 2019-07-08 | For bridge tower transverse direction bonded prestress rod iron anchoring assembly and construction method |
| PCT/CN2020/100314 WO2021004417A1 (en) | 2019-07-08 | 2020-07-05 | Anchoring assembly for transversely bonded prestressed steel rod for bridge tower and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910611094.9A CN110396927A (en) | 2019-07-08 | 2019-07-08 | For bridge tower transverse direction bonded prestress rod iron anchoring assembly and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110396927A true CN110396927A (en) | 2019-11-01 |
Family
ID=68324001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910611094.9A Pending CN110396927A (en) | 2019-07-08 | 2019-07-08 | For bridge tower transverse direction bonded prestress rod iron anchoring assembly and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110396927A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021004417A1 (en) * | 2019-07-08 | 2021-01-14 | 中建三局第二建设工程有限责任公司 | Anchoring assembly for transversely bonded prestressed steel rod for bridge tower and construction method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008231700A (en) * | 2007-03-16 | 2008-10-02 | Anderson Technology Kk | Flat anchorage device for post-tensioned type prestressed concrete floor slab, post-tensioned type prestressed concrete floor slab using the anchorage device, and construction method for the post-tensioned type prestressed concrete floor slab |
| CN104060535A (en) * | 2014-07-04 | 2014-09-24 | 柳州欧维姆机械股份有限公司 | Prestress high-strength twisted steel anchoring system and construction method |
| CN206052566U (en) * | 2016-08-31 | 2017-03-29 | 浙江兴土桥梁临时钢结构工程有限公司 | A kind of new anchor box |
| CN106638307A (en) * | 2015-11-04 | 2017-05-10 | 襄阳中铁宏吉工程技术有限公司 | Deeply-buried anchorage device |
| CN106906751A (en) * | 2017-04-25 | 2017-06-30 | 中铁四局集团有限公司 | Especially big Cable stayed Bridge Main Tower segmental arc vertical prestressing construction method |
| CN208563129U (en) * | 2018-07-17 | 2019-03-01 | 中铁三局集团有限公司 | A kind of prefabricated case beam prestressed pore passage series connection mud jacking constructing device |
| CN208762859U (en) * | 2018-08-08 | 2019-04-19 | 河南省中交路桥工程材料有限公司 | A kind of prestressed high-strength spiral anchoring system |
| CN210712560U (en) * | 2019-07-08 | 2020-06-09 | 中建三局第二建设工程有限责任公司 | Anchoring component for transversely bonding prestressed steel bars of bridge tower |
-
2019
- 2019-07-08 CN CN201910611094.9A patent/CN110396927A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008231700A (en) * | 2007-03-16 | 2008-10-02 | Anderson Technology Kk | Flat anchorage device for post-tensioned type prestressed concrete floor slab, post-tensioned type prestressed concrete floor slab using the anchorage device, and construction method for the post-tensioned type prestressed concrete floor slab |
| CN104060535A (en) * | 2014-07-04 | 2014-09-24 | 柳州欧维姆机械股份有限公司 | Prestress high-strength twisted steel anchoring system and construction method |
| CN106638307A (en) * | 2015-11-04 | 2017-05-10 | 襄阳中铁宏吉工程技术有限公司 | Deeply-buried anchorage device |
| CN206052566U (en) * | 2016-08-31 | 2017-03-29 | 浙江兴土桥梁临时钢结构工程有限公司 | A kind of new anchor box |
| CN106906751A (en) * | 2017-04-25 | 2017-06-30 | 中铁四局集团有限公司 | Especially big Cable stayed Bridge Main Tower segmental arc vertical prestressing construction method |
| CN208563129U (en) * | 2018-07-17 | 2019-03-01 | 中铁三局集团有限公司 | A kind of prefabricated case beam prestressed pore passage series connection mud jacking constructing device |
| CN208762859U (en) * | 2018-08-08 | 2019-04-19 | 河南省中交路桥工程材料有限公司 | A kind of prestressed high-strength spiral anchoring system |
| CN210712560U (en) * | 2019-07-08 | 2020-06-09 | 中建三局第二建设工程有限责任公司 | Anchoring component for transversely bonding prestressed steel bars of bridge tower |
Non-Patent Citations (1)
| Title |
|---|
| 王修正等: "工程机械施工手册 第1分册 起重机械", vol. 1, 中国铁道出版社, pages: 483 - 484 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021004417A1 (en) * | 2019-07-08 | 2021-01-14 | 中建三局第二建设工程有限责任公司 | Anchoring assembly for transversely bonded prestressed steel rod for bridge tower and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104674808B (en) | Construction method of assembly type hollow grouting anchor bolt | |
| CN203569582U (en) | Connecting structure of concrete pipe pile and bearing platform | |
| WO2021004417A1 (en) | Anchoring assembly for transversely bonded prestressed steel rod for bridge tower and construction method | |
| CN103590414A (en) | Structure for connecting concrete tubular pile with bearing platform | |
| CN101696591A (en) | Steel strand connector | |
| CN105464110A (en) | Construction technology of basalt fiber reinforced material anchor rods | |
| CN109403205A (en) | Hollow sandwich multi-cavity steel tube concrete component and preparation method thereof | |
| CN202809633U (en) | Connecting structure of pre-stressed high-strength concrete (PHC) pipe pile and bearing platform | |
| CN110206143A (en) | A kind of construction method of post-stressed assembly concrete frame structure | |
| CN203510449U (en) | Novel tension device for pipe pile production | |
| CN202925767U (en) | Low-retraction pre-stressed anchorage device | |
| CN201217777Y (en) | Vertical pre-stress anchorage structure of low-retraction steel stranded wire | |
| CN110396927A (en) | For bridge tower transverse direction bonded prestress rod iron anchoring assembly and construction method | |
| CN210713360U (en) | Filler wall frame structure of GFRP reinforced flexible connection | |
| CN202031027U (en) | Whole replaceable anchorage system | |
| CN107905103A (en) | A kind of prestress anchorage system and its construction method with compression spring | |
| CN214328962U (en) | Structure is restoreed to gravity type barricade based on prestressed anchorage pole lattice girder | |
| CN102912987B (en) | Stress applying method and tool thereof for low retraction pre-stress concrete member | |
| CN210712560U (en) | Anchoring component for transversely bonding prestressed steel bars of bridge tower | |
| CN108360835B (en) | Construction method for reinforcing structure of old building | |
| CN205529907U (en) | P -type anchorage device at fixed end | |
| CN205012238U (en) | A letter T roof beam anchor based on violently open prestressing force | |
| CN204827500U (en) | Pinniform wedge body stock | |
| CN204940273U (en) | A kind of Prestressed anchor rope with pressure dispersing construction equipment | |
| CN1323254C (en) | Super large caliber centripetal stress high pressure water transport pipe and its preparing process |
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 |