CN208899308U - A kind of multi beam connects few beam prestressed strand spreading structure - Google Patents
A kind of multi beam connects few beam prestressed strand spreading structure Download PDFInfo
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- CN208899308U CN208899308U CN201820912047.9U CN201820912047U CN208899308U CN 208899308 U CN208899308 U CN 208899308U CN 201820912047 U CN201820912047 U CN 201820912047U CN 208899308 U CN208899308 U CN 208899308U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 167
- 239000010959 steel Substances 0.000 claims abstract description 167
- 239000004567 concrete Substances 0.000 claims abstract description 44
- 238000000926 separation method Methods 0.000 claims description 18
- 238000004873 anchoring Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 5
- 239000002689 soil Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 238000005345 coagulation Methods 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims 2
- 239000004568 cement Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 15
- 238000002955 isolation Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 11
- 210000002435 tendon Anatomy 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model discloses a kind of multi beams to connect few beam prestressed strand spreading structure, is followed successively by leading portion, middle section and back segment along steel beam spreading direction, three has separately included leading portion steel beam, middle section passes through steel beam and back segment steel beam；Middle section be arranged preceding anchor slab, connection steel bushing, middle anchor slab, by steel beam and rear anchor slab, leading portion steel beam is all anchored by preceding anchor slab, a part of back segment steel beam is anchored by rear anchor slab, remaining is that middle section passes through steel beam, its front end is anchored on middle anchor slab, and preceding anchor slab and middle anchor slab pass through connection steel bushing connection；Preceding anchor slab, connection steel bushing, middle anchor slab, middle section are covered by the external setting overall isolation of steel beam and rear anchor slab to be isolated with middle section concrete.The utility model is applied to work as prestressed strand duct characteristics of compact layout, same duct steel beam need to be required according to construction from the different of bridge stress, the project situation of the steel beam of few root is connect with more steel beams, entire spreading structure is simple, easy for construction, has the characteristics that safety, economic, convenience.
Description
Technical field
The utility model relates to Bridge Designs and technical field of construction, more particularly to divide across or be segmented the prestressing force poured and mix
Prestressed strand spreading structure in solidifying soil bridge.
Background technique
In prestressed reinforced concrete construction, especially divides across or be segmented in the Prestressed Concrete Bridges poured, often need
It is required, prestressed strand spreading can be used according to working procedure, but existing prestressed strand spreading is essentially with connector
The identical radical of same specification steel beam spreading or less radical in one channel.Under some particular cases, such as pushing tow PC small box girder bridge,
Its Cheng Qiaogang beam and construction stage steel beam are there are larger difference, in order to save cost, concrete floor need to be arranged to as far as possible it is relatively narrow,
Therefore bottom plate cloth beam position is limited, as connect few beam prestressed strand spreading structure and corresponding construction party using multi beam in design and construction
Method can make the bridge in such situation under the premise of safety is guaranteed, there is more superior economy and convenient construction
Property.
Utility model content
The technical problems to be solved in the utility model is in view of the deficiencies of the prior art, to provide one kind in prestress steel beam hole
It is used when road characteristics of compact layout, construction can be facilitated, and cost can be reduced, safe and reliable multi beam connects few beam prestressed strand spreading knot
Structure.
In order to solve the above technical problems, the utility model adopts the following technical solution: a kind of multi beam connects few beam prestress steel
Beam spreading structure.It is characterized by: the steel beam spreading structure be three-stage structure, along the spreading direction of steel beam be followed successively by leading portion, in
Section and back segment, between middle section and leading portion before anchoring end face formed boundary, between back segment and middle section after anchoring end face formed point
Boundary；Leading portion has leading portion steel beam, and leading portion Strands Layout is in leading portion concrete preformed hole road；There is middle section to pass through steel beam in middle section,
Middle section is by Strands Layout in the separation sleeve of middle section concrete；Back segment has back segment steel beam, and back segment Strands Layout is mixed in back segment
In solidifying soil reserving hole channel；Middle section is less than or equal to the radical of leading portion steel beam, but back segment (anchor slab after i.e.) anchor by the radical of steel beam
Solid radical by the radical of the steel Shu Yiqi back segment steel beam formed greater than leading portion steel beam of steel beam and middle section.
It is equipped with preceding anchor plate in preceding segment trailer, thereafter close to the preceding anchor slab in middle section, the periphery of preceding anchor plate is equipped with preceding anchor
Lower spiral bar, leading portion steel beam pass through preceding anchor plate, and before being anchored on anchor slab, spiral bar is arranged in leading portion under preceding anchor plate and preceding anchor
In concrete；
It is equipped with rear anchor plate in the front of back segment, the front is equipped with close to the rear anchor slab in middle section, the periphery of rear anchor plate
Spiral bar under anchor afterwards, back segment steel beam completely extend across rear anchor plate, and a portion is anchored on rear anchor slab, rear anchor plate and rear anchor
Lower spiral bar is arranged in rear section concrete；
Preceding anchor slab, connection steel bushing, middle anchor slab, middle section are set gradually in middle section by steel beam and rear anchor slab, leading portion steel
Beam is all anchored by preceding anchor slab, anchor plate setting before preceding anchor slab is close to；Anchor plate is arranged after anchor slab is close to afterwards, anchors back segment steel beam
In a part of steel beam；Remaining back segment steel beam (the remaining steel beam in addition to the steel beam of rear anchor slab anchoring) is middle section by steel beam,
It is anchored on anchor slab, middle anchor slab connect power transmission with preceding anchor slab by connection steel bushing；Preceding anchor slab, connection steel bushing, middle anchor slab,
Middle section is provided with integrated separation sleeve by the outside of steel beam and rear anchor slab this five components, and separation sleeve is by all of the above component
It is isolated with middle section concrete, after the completion of whole prestressed stretch-draws, separation sleeve domestic demand filling concrete slurry.
Further, the connection steel bushing is made of Steel material, and sleeve both ends are equipped with internal screw thread, and both ends screw thread is positive
Anti- silk combination arrangement.
Further, the preceding anchor plate and rear anchor plate have the structure of identical (or similar), using steel or cast iron material
Material is made, and connecing anchor plate-end is that the direct bearing plate of circular hole is opened at middle part, extends backward and lengthens pressure-bearing cylinder, and cylinder is equipped with multi-turn
Shearing resistance bearing ring outstanding.
Further, the preceding anchor slab, middle anchor slab and rear anchor slab are all made of Steel material, are cylindrical shape, wherein preceding anchor slab,
Middle anchor slab is tapped, matches with steel bushing internal screw thread is connect, to be attached thereto.
Further, before the leading portion steel Shu Caiyong stretching end or fixing end anchorage are anchored on anchor slab, middle section passes through steel
Shu Caiyong fixing end cone anchorage or Extrusion anchor ground tackle are anchored on middle anchor slab, and middle section passes through remaining back segment steel Shu Caiyong outside steel beam
Fixing end cone anchorage or Extrusion anchor ground tackle are anchored on rear anchor slab.
Further, the separation sleeve is made of plastics or thin walled metallic materials, for isolated double-sheet arrangement, is installed as
One closing is whole.
Further, middle section concrete uses the microdilatancy fiber concrete than front and back Duan Gaoyi strength grade.
The construction method that few beam prestressed strand spreading structure is connect based on aforementioned multi beam, is sequentially included the following steps:
First stage:
1) whole leading portion steel beam anchorage elements are installed --- spiral bar and leading portion steel beam provided pipe under preceding anchor plate, preceding anchor
Then road pours preceding section concrete, install leading portion steel beam；
2) after section concrete reaches the intensity of design requirement before, anchor slab before installing, tensioning simultaneously anchors leading portion steel beam；
Second stage:
3) whole back segment steel beam anchorage elements are installed --- spiral bar and back segment steel beam provided pipe under rear anchor plate, rear anchor
Then road pours rear section concrete, install back segment steel beam；
4) after section concrete reaches the intensity of design requirement afterwards, anchor slab after installation, then in the distal end tensioning part of back segment
Or all it is anchored at the back segment prestressed strand on rear anchor slab；
Phase III:
5) middle section is anchored on middle anchor slab by steel beam, make in order by middle section by steel beam, connected with connection steel bushing
Anchor slab and middle anchor slab before connecing；
6) separation sleeve in middle section is installed；
7) middle section pours the microdilatancy fiber concrete than front and back Duan Gaoyi strength grade；
Fourth stage:
8) after section concrete reaches design requirement intensity in, in the distal end tensioning whole back segment steel beam of back segment, prestressing force
It draws and uses gradation symmetrical cycle single tendon stretch, until reaching the required stretching force of design；
9) gap being in the milk in front and rear sections steel beam reserving hole channel and middle section separation sleeve.
Each component function:
Spiral bar under preceding anchor: it is used to meet leading portion prestressed strand Mao Xia concrete partial pressing；
Preceding anchor plate: by the prestressed strand pre-applied force power transmission of leading portion anchoring to concrete；
Preceding anchor slab: anchoring prestress steel beam, band external screw thread are connected with steel bushing is connect；
Connect steel bushing: band internal screw thread in the cylinder of front and back end is arranged for positive and negative silk, is connect with preceding anchor slab, middle anchor slab, in transmitting
Section passes through steel Shu Lali；
Middle anchor slab: anchoring middle section is connected by steel beam, band external screw thread with steel bushing is connect；
Separation sleeve: middle section spreading component is isolated with middle section concrete, provides pore-forming support by steel beam for middle section；
Anchor slab afterwards: anchorage part back segment prestressed strand；
Anchor plate afterwards: by the back segment steel beam pre-applied force power transmission being anchored on rear anchor slab to concrete；
Spiral bar under anchor afterwards: the back segment prestressed strand Mao Xia concrete partial pressing anchored for anchor slab after meeting uses.
The utility model is applied to work as prestressed strand duct characteristics of compact layout, and same duct steel beam need to be according to construction and Cheng Qiao
Structure stress requirement, the project situation of few root steel beam is connect with more steel beams, is anchored at two since spreading steel beam exists, therefore in order to
Guaranteeing the uniform force of each steel beam of spreading, spreading steel beam uses gradation symmetrical cycle single tendon stretch in the distal end of back segment, until
Reach the required stretching force of design.Entire spreading structure is simple, easy for construction, through engineering practice detection, has safety, warp
Ji, convenient effect, can bring higher economic benefit, have promotional value.
Detailed description of the invention
Fig. 1 is the utility model elevational schematic view；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is the B-B cross-sectional view of Fig. 1；
Fig. 4 is the C-C cross-sectional view of Fig. 1.
In figure, 1 is leading portion, and 11 be leading portion steel beam, and 12 be preceding anchor plate, and 13 be spiral bar under preceding anchor, and 14 be leading portion coagulation
Soil, 15 be preceding anchoring end face, and 2 be middle section, and 21 be middle section by steel beam, and 22 be preceding anchor slab, and 23 be middle anchor slab, and 24 be rear anchor slab,
25 be connection steel bushing, and 26 be separation sleeve, and 27 be middle section concrete, 28 be after anchor end face, 3 be back segment, and 31 be back segment steel beam,
32 be rear anchor plate, and 33 be spiral bar under rear anchor, and 34 be rear section concrete.
Specific embodiment
The present embodiment by taking Jinggang Mountain economic and technological development zone (area abbreviation Jing Kai) Shenzhen bridge well Ji railroad underbridge as an example,
This spanning gets over well Ji Tielu, is three across the Wavelike steel webplate continuous small box girder bridges of PC of (61+8+61) m, and bridge deck width 17m is horizontal
Bridge is formed to by 4 small box girders, roof and floor is prestressed reinforced concrete construction, use two panels small box girder for one group simultaneously pushing tow apply
Work engineering method.Box beam longitudinal direction leading portion be pushing tow nose girder section, one using permanent Wavelike steel webplate as incremental launching construction Guide beam structure
Point, long 41.8m, rest part is Wavelike steel webplate PC small box girder.Since box beam bottom plate position is narrow, arrangement prestress beam hole road has
It limits, the Cheng Qiaogang beam of corresponding intermediate pier location can be less than the Cheng Qiao of span centre section according to force request in the prestressed pore passage of bottom plate
Steel beam.
- Fig. 4 referring to Fig.1, the multi beam connect few beam prestressed strand spreading structure, are three-stage structure, along the spreading of steel beam
Direction is followed successively by leading portion 1, middle section 2 and back segment 3, and anchoring end face 15 forms boundary in the past between middle section 2 and leading portion 1, and back segment 3 is in
Anchoring end face 28 forms boundary after between section 2；Leading portion 1 has leading portion steel beam 11 (using 4 beam φ 21.8mm steel strand wires), leading portion
Before steel beam 11 is arranged in the reserving hole channel of section concrete 14 (C50)；There is middle section (to use 4 beam φ by steel beam 21 in middle section 2
21.8mm steel strand wires), middle section is arranged in the separation sleeve of middle section concrete 27 (C55) by steel beam 21；Back segment 3 has back segment steel
Beam 31 (uses 9 beam φ 21.8mm steel strand wires), and back segment steel beam 31 is arranged in rear section concrete 34 (C50) reserving hole channel；Wherein
(the 9 beam φ 21.8mm steel strand wires) radical of back segment steel beam 31 is greater than the radical of leading portion steel beam 11 (4 beam φ 21.8mm steel strand wires).
It is equipped with preceding anchor plate 12 in the tail portion of leading portion 1, (7 circles of spiral bar 13 under anchor before the periphery of preceding anchor plate 12 is arranged with
φ 18mm reinforcing bar), before leading portion steel beam 11 is anchored at by stretching end anchorage on anchor slab 22；
It is equipped with rear anchor plate 32 in the front of back segment 3, the periphery of rear anchor plate 32 is arranged with (7 circles of spiral bar 33 under rear anchor
φ 18mm reinforcing bar), 5 in back segment steel beam 31 are anchored on rear anchor slab 24 (the same anchor slab 22 of size) with fixing end anchorage；
Preceding anchor slab 22, middle anchor slab 23 and rear anchor slab 24 are set in middle section 2, and back segment steel beam 31 is removed and is anchored on rear anchor slab 24
5 steel beams outside 4 (for middle section pass through steel beam 21), extension forward is anchored on middle anchor slab 23 with fixing end anchorage, connection
Anchor slab 22 and middle anchor slab 23 before steel bushing 25 (outer diameter φ 310mm, long 450mm) connects；Separation sleeve 26 by preceding anchor slab 22, connection steel
Sleeve 25, middle anchor slab 23, middle section are closed by steel beam 21 (4 beam φ 21.8mm steel strand wires) with rear anchor slab 24 together, outer to pour
Middle section concrete 27 (C55 slightly expanded concrete).
The connection steel bushing 25 is made of Steel material, and sleeve both ends are equipped with internal screw thread, and both ends screw thread is positive and negative silk group
Close arrangement.
The preceding anchor plate and rear anchor plate use identical structure, are made of cast iron materials, front end is opened for middle part
The direct bearing plate of circular hole (bearing plate planar dimension is 38cm*38cm), extends backward and lengthens pressure-bearing cylinder (long 50cm altogether), cylinder
Body is equipped with 3 circle shearing resistance bearing rings outstanding.
The preceding anchor slab 22, middle anchor slab 23 and rear anchor slab 24 are Steel material, are cylindrical shape, size is diameter phi
250mm, long 120mm are matched, to be attached thereto wherein preceding anchor slab, middle anchor slab are tapped with steel bushing internal screw thread is connect.
Before the leading portion steel beam (4 beam φ 21.8mm steel strand wires) is anchored at using stretching end anchorage on anchor slab 22, middle section is logical
It crosses steel beam 21 (4 beam φ 21.8mm steel strand wires) to be anchored on middle anchor slab 23 using fixing end cone anchorage, except middle section passes through steel beam
Remaining back segment steel beam 31 (5 beam φ 21.8mm steel strand wires) outside 21 is anchored on rear anchor slab 24 using fixing end cone anchorage.
The separation sleeve is made of metal, and for isolated double-sheet arrangement, it is whole to be installed as a closing.
The middle section concrete 27 (C55 slightly expanded concrete) is using a strength grade higher than front and back section (C50 concrete)
Microdilatancy fiber concrete.
The construction method that few beam prestressed strand spreading structure is connect based on aforementioned multi beam, is carried out according to the following steps,
First stage:
1) whole leading portion prestressed strand anchorage elements are installed --- spiral bar 13 and leading portion under preceding anchor plate 12, preceding anchor
Steel beam preserved pipeline, section concrete 14 before then pouring install leading portion steel beam 11；
2) after section concrete 14 reaches the intensity of design requirement before, anchor slab 22 before installing, tensioning simultaneously anchors leading portion steel beam 11；
Second stage:
3) whole back segment steel beam anchorage elements are installed --- spiral bar 33 and back segment steel beam are reserved under rear anchor plate 32, rear anchor
Then pipeline pours rear section concrete 34, install back segment steel beam 31；
4) after section concrete 34 reaches the intensity of design requirement afterwards, anchor slab 24 after installation, then in the distal end tensioning of back segment
The back segment prestressed strand being partly or entirely anchored on rear anchor slab 24；
Phase III:
5) by middle section by steel beam 21 on middle anchor slab 23, make in order by middle section by steel beam 21, with connection steel bushing
25 connect preceding anchor slab 22 and middle anchor slab 23；
6) separation sleeve 26 in middle section is installed；
7) middle section pours the microdilatancy fiber concrete than front and back Duan Gaoyi strength grade；
Fourth stage:
8) it after section concrete 27 reaches design requirement intensity in, in the distal end tensioning whole back segment steel beam 31 of back segment, answers in advance
Power tensioning uses gradation symmetrical cycle single tendon stretch, until reaching the required stretching force of design；
9) gap being in the milk in front and rear sections steel beam reserving hole channel and middle section separation sleeve.
On the utility model is described in detail, described above, the only preferred embodiment of the utility model,
It is when the utility model practical range cannot be limited, i.e., all according to the made equivalent changes and modifications of the application range, it should still belong to this reality
With in novel covering scope.
Claims (7)
1. a kind of multi beam connects few beam prestressed strand spreading structure, it is characterised in that: the steel beam spreading structure is three-stage structure: edge
The spreading direction of steel beam is followed successively by leading portion, middle section and back segment, between middle section and leading portion before anchoring end face formed boundary, back segment with
Anchoring end face forms boundary after between middle section；Leading portion has leading portion steel beam, is arranged in leading portion concrete preformed hole road；In
Section has middle section by steel beam, and middle section is by Strands Layout in the separation sleeve of middle section concrete；Back segment has back segment steel beam, after
Section Strands Layout is in back segment concrete preformed hole road；Middle section is less than or equal to the radical of leading portion steel beam by the radical of steel beam,
But the steel beam of back segment anchoring and middle section are greater than the radical of leading portion steel beam by the radical of the steel Shu Yiqi back segment steel beam formed；
It is equipped with preceding anchor plate in preceding segment trailer, thereafter close to the preceding anchor slab in middle section, the periphery of preceding anchor plate is equipped with spiral shell under preceding anchor
Muscle is revolved, leading portion steel beam passes through preceding anchor plate, and before being anchored on anchor slab, spiral bar is arranged in leading portion coagulation under preceding anchor plate and preceding anchor
In soil；
It is equipped with rear anchor plate in the front of back segment, the front is equipped with rear anchor close to the rear anchor slab in middle section, the periphery of rear anchor plate
Lower spiral bar, back segment steel beam completely extend across rear anchor plate, and a portion is anchored on rear anchor slab, spiral shell under rear anchor plate and rear anchor
Rotation muscle is arranged in rear section concrete；
Preceding anchor slab, connection steel bushing, middle anchor slab, middle section are set gradually in middle section by steel beam and rear anchor slab, leading portion steel Shu Quan
Portion is anchored by preceding anchor slab, anchor plate setting before preceding anchor slab is close to；Anchor plate is arranged after anchor slab is close to afterwards, anchors in back segment steel beam
A part of steel beam；The middle section remaining steel Shu Junwei is anchored on middle anchor slab by steel beam in addition to the steel beam of rear anchor slab anchoring, in
Anchor slab connect power transmission with preceding anchor slab by connection steel bushing；Preceding anchor slab, connection steel bushing, middle anchor slab, middle section by steel beam and
The outside of anchor slab is provided with one and is filled with the separation sleeve of cement slurry afterwards, separation sleeve by preceding anchor slab, connection steel bushing, middle anchor
Plate, middle section are isolated by steel beam and rear anchor slab with middle section concrete.
2. multi beam according to claim 1 connects few beam prestressed strand spreading structure, it is characterised in that: the connection steel bushing
Cylinder is made of Steel material, and sleeve both ends are equipped with internal screw thread, and both ends screw thread is positive and negative silk combination arrangement.
3. multi beam according to claim 1 connects few beam prestressed strand spreading structure, it is characterised in that: the preceding anchor plate
And rear anchor plate structure having the same, it is made of steel or cast iron materials, connecing anchor plate-end is that the direct pressure-bearing of circular hole is opened at middle part
Plate, extends backward and lengthens pressure-bearing cylinder, and cylinder is equipped with multi-turn shearing resistance bearing ring outstanding.
4. multi beam according to claim 1 connects few beam prestressed strand spreading structure, it is characterised in that: the preceding anchor slab,
Middle anchor slab and rear anchor slab are all made of Steel material, are cylindrical shape, wherein before anchor slab and middle anchor slab it is tapped, and connect steel bushing
Internal screw thread matching, is threadedly coupled.
5. multi beam according to claim 1 connects few beam prestressed strand spreading structure, it is characterised in that: the leading portion steel beam
Before being anchored at using stretching end or fixing end anchorage on anchor slab, middle section passes through steel Shu Caiyong fixing end cone anchorage or Extrusion anchor ground tackle
It is anchored on anchor slab, middle section is anchored at by remaining back segment steel Shu Caiyong fixing end cone anchorage outside steel beam or Extrusion anchor ground tackle
Afterwards on anchor slab.
6. multi beam according to claim 1 connects few beam prestressed strand spreading structure, it is characterised in that: the separation sleeve is adopted
It is made of plastics or thin walled metallic materials, for isolated double-sheet arrangement, it is whole to be installed as a closing.
7. multi beam according to claim 1 connects few beam prestressed strand spreading structure, it is characterised in that: the middle section coagulation
Soil is using the microdilatancy fiber concrete than front and back Duan Gaoyi strength grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820912047.9U CN208899308U (en) | 2018-06-12 | 2018-06-12 | A kind of multi beam connects few beam prestressed strand spreading structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820912047.9U CN208899308U (en) | 2018-06-12 | 2018-06-12 | A kind of multi beam connects few beam prestressed strand spreading structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208899308U true CN208899308U (en) | 2019-05-24 |
Family
ID=66566597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820912047.9U Withdrawn - After Issue CN208899308U (en) | 2018-06-12 | 2018-06-12 | A kind of multi beam connects few beam prestressed strand spreading structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208899308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108570922A (en) * | 2018-06-12 | 2018-09-25 | 中交第四航务工程勘察设计院有限公司 | A kind of multi beam connects few beam prestressed strand spreading structure and construction method |
-
2018
- 2018-06-12 CN CN201820912047.9U patent/CN208899308U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108570922A (en) * | 2018-06-12 | 2018-09-25 | 中交第四航务工程勘察设计院有限公司 | A kind of multi beam connects few beam prestressed strand spreading structure and construction method |
| CN108570922B (en) * | 2018-06-12 | 2023-12-05 | 中交第四航务工程勘察设计院有限公司 | Multi-beam-connection few-beam prestressed steel beam lengthening structure and construction method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190524 Effective date of abandoning: 20231205 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190524 Effective date of abandoning: 20231205 |