CN110983985A - Continuously-walking double-layer flange plate box type concrete structure construction hanging basket and construction method thereof - Google Patents
Continuously-walking double-layer flange plate box type concrete structure construction hanging basket and construction method thereof Download PDFInfo
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- CN110983985A CN110983985A CN201911333214.XA CN201911333214A CN110983985A CN 110983985 A CN110983985 A CN 110983985A CN 201911333214 A CN201911333214 A CN 201911333214A CN 110983985 A CN110983985 A CN 110983985A
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- 238000010276 construction Methods 0.000 title claims abstract description 48
- 239000004567 concrete Substances 0.000 title claims abstract description 35
- 238000009415 formwork Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 238000004873 anchoring Methods 0.000 claims description 19
- 239000000725 suspension Substances 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000002355 dual-layer Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- 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
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- 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
- E01D21/10—Cantilevered erection
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Abstract
A continuously walking hanging basket for the box-type concrete structure with dual-layer flange plates is composed of a main truss system fixed to the poured box girder via anchor system, a walking system consisting of front slide block, back slide block, assembled track, the first and the second jacks, pull rod and movable anchor block, and a formwork system consisting of core mould, side mould, lower flange plate mould and bottom mould, and features that said hanging basket can be continuously moved forward by moving forward, installing movable anchor block, fixing pull rod, starting the first jack, returning oil to reset the first jack, starting the second jack, returning oil to reset the second jack, and alternatively stretching and pushing, the movable anchor block can be repeatedly used, the jack is used for tensioning alternately, continuous advancing of the construction hanging basket can be realized, and the construction period is saved.
Description
Technical Field
The invention belongs to the field of civil engineering, relates to a temporary facility for construction of a double-layer flange plate continuous box girder bridge structure and a construction method thereof, and particularly relates to a continuously-walking double-layer flange plate box type concrete structure construction hanging basket and a construction method thereof.
Background
The prestressed concrete continuous box girder bridge is one of the main types of bridges, has long history and is widely applied. In the construction process of the cantilever box girder bridge, the cradle is indispensable construction equipment, a support does not need to be erected, a large crane does not need to be used, and compared with other methods, the cradle construction method has the advantages of light structure, simplicity and convenience in splicing, no pressure, heavy weight and the like.
With the development of economy, most of the built bridge girders are increasingly congested, so that a wide bridge is built, and the traffic pressure is relieved. The double-deck bridge aims to overcome various problems of difficult design and construction of wide bridges, large occupied area, high manufacturing cost and the like, and various double-deck bridges capable of realizing double-deck traffic can be transported. The flange plates of the traditional box girder bridge are flush with the bridge deck, and the equal-section double-layer flange plate structure bridge is formed by adding one layer of flange plate on the bottom plate of the bridge. The upper layer flange plate and the box girder top plate jointly form a motor vehicle lane, and the lower layer flange plate is used as a passage for non-motor vehicles and pedestrians, so that the separation of the vehicles and the people is realized, and the climbing height of the pedestrians is reduced.
The prior hanging basket is pushed forwards, the manual control and symmetrical forward movement of a chain block are mostly adopted, the friction force generated in the forward movement process is large, when the forward movement distance of a large bridge is large, the chain block or a jack is required to be continuously disassembled and installed due to the limitation of the range, the workload is large, the forward movement speed is slow, once deviation occurs, the control is difficult, the asynchronous displacement of the two sides of the hanging basket is easily caused, the hanging basket is misplaced, and the whole structure has potential safety hazards of different degrees, for example, Chinese patent CN 203049470U discloses a hanging basket walking system which comprises a left walking track and a right walking track which are arranged corresponding to a left main longitudinal beam and a right main longitudinal beam of the hanging basket, each walking track is at least provided with a hydraulic cylinder, a sliding locking device and a sliding shoe in a matched manner, the sliding locking device is arranged on the walking tracks, can walk along the walking tracks and is fixed on the walking tracks through connecting pieces, and the sliding shoe is fixedly connected, and can walk along the walking track, hydraulic cylinder one end is connected in slip locking device, and the other end is connected in the piston shoes.
Although the system solves the problem of poor manual control precision, the jack has limited range and cannot ensure the continuous forward movement of the cradle, and the full-automatic forward movement is not realized.
Disclosure of Invention
The invention develops a matched template system aiming at a novel double-layer flange plate continuous box type concrete structure bridge, which is mainly formed by splicing a core mold, a side mold, a lower flange plate mold and a bottom mold, can realize one-time pouring forming, simultaneously solves the problems of poor forward moving precision, difficult control, slow forward moving speed and the like of a hanging basket, improves a traveling system of the hanging basket, realizes the rapid laying of a track in the forward moving direction of the hanging basket through a splicing track, has strong maneuverability of a movable anchor block, is convenient to install and disassemble, is fixed with a main truss system, alternately stretches a pull rod anchored on the movable anchor block through a stretching oil pump system, realizes the full-automatic forward movement of the hanging basket, can realize the differential control of jacks on two sides of the hanging basket at any time for the deviation generated in the forward moving process, does not need to disassemble the jacks in the construction process, and only needs to splice the forward moving direction of concrete every time when the hanging basket is moved, the movable anchor block and the pull rod are installed, construction is fast and convenient, a large amount of manpower and material resources are saved, and the construction period is shortened.
In order to achieve the purpose, the invention adopts the following technical scheme: a continuous-walking double-layer flange plate box type concrete structure construction hanging basket comprises a main truss system, an anchoring system, a suspension system, a template system and a walking system, and is characterized in that the main truss system is fixed with a poured box girder through the anchoring system, the walking system is arranged between the main truss system and the poured box girder and consists of a front sliding block, a rear sliding block, an assembled track, a first jack, a second jack, a pull rod and a movable anchor block, the front sliding block and the rear sliding block are respectively welded or connected with an anchor bolt at the front node and the rear node of the lower side of the main truss system, the front sliding block and the rear sliding block are respectively fixed with the assembled track in the vertical direction and are connected with the assembled track in a horizontal sliding or rolling manner, the first jack and the second jack are respectively arranged at the rear end parts of the front sliding block and the rear sliding block and are fixedly connected with the main truss system, the movable anchor block is flexibly embedded and fixed at the front end part of the assembled track in the advancing direction of concrete, one end of the pull rod is anchored with the movable anchor block, the other end of the pull rod longitudinally penetrates through the first jack and the second jack along the poured box girder, the template system is formed by assembling a core mold, a side mold, a lower flange plate mold and a bottom mold, and the core mold, the side mold, the lower flange plate mold and the bottom mold are all hung around the concrete of the box girder section to be poured in the advancing direction of box girder pouring through a suspension system.
The pin-connected panel track constitute by a plurality of shaped steel and a plurality of cross slab, each pin-connected panel track is connected gradually fixedly around vertical by two above shaped steel, the tip of every section shaped steel is equipped with the trompil steel sheet, front and back shaped steel passes the trompil steel sheet through the bolt and connects the formation pin-connected panel track around.
The movable anchor block consists of an anchoring block and an embedding block, the embedding block is flexibly embedded and connected with the front end of the assembled track, the anchoring block is vertically connected with the embedding block, and the anchoring block protrudes out of the section steel of the assembled track and forms anchoring to the pull rod.
The first jack and the second jack are arranged above each assembled track, and the tensioning pull rods are alternately jacked in series at intervals from front to back so that the main truss system continuously advances towards the pouring direction.
And the lower flange plate mold and the bottom mold extend out of the webs on the two outermost sides of the box girder.
A construction method of a continuously-walking double-layer flange plate box type concrete structure construction hanging basket is characterized by at least comprising the following steps:
A. advancing the assembled track: cast box girder with tail assembled rail detached and moved forwards in hanging basket moving forward direction
The assembled rail is fixedly connected with the assembled rail of the previous section through bolts;
B. installing a movable anchor block: embedding one end of an embedding block of the movable anchor block into the end part of the assembled track in the pouring advancing direction;
C. fixing a pull rod: one end of the pull rod sequentially penetrates through the first jack, the front sliding block, the second jack and the rear sliding block, and the other end of the pull rod is temporarily anchored on the anchoring block of the movable anchor block;
D. starting the first jack: starting a first jack in the sequence of the pouring forward direction, tensioning the pull rod, and pushing a front sliding block to enable the main truss system to move forward;
E. returning oil to reset of the first jack: when the first jack reaches the measuring range, the first jack returns oil and restores the original position;
F. starting the second jack: starting a second jack, tensioning the pull rod, and pushing the rear sliding block to enable the main truss system to continuously move forwards;
G. returning oil to the second jack and resetting: when the second jack reaches the measuring range, the second jack returns oil and restores the original position;
H. repeating the steps D to G to enable the main truss system to continuously advance on the assembled track until the advancing amount of the main truss system reaches a specified value;
I. and (3) dismounting the movable anchor block: detaching the pull rod on the anchoring block of the movable anchor block, and detaching the movable anchor block from the end part of the assembled track;
J. completing forward movement of the hanging basket: completing the continuous forward movement of the double-layer flange plate box type concrete structure construction hanging basket;
K. circulating walking hanging basket: after the hanging basket is moved in place, the template, the steel bar and the concrete of the box girder body segment are completed
And (4) construction and maintenance, and the steps A to J are circulated to finish the next traveling of the cradle.
Aiming at the novel double-layer flange plate continuous box type concrete structure bridge, the invention optimizes a template system and a traveling system of a hanging basket and designs hanging basket equipment for cantilever pouring construction of a double-layer flange plate structure constant-section continuous beam bridge. The hanging basket solves the problems of slow forward movement and low efficiency of the hanging basket in the cantilever construction process, and the full-automatic continuous forward movement of the hanging basket is realized by alternately tensioning the pull rod by the first jack and the second jack and simultaneously pushing the front sliding block and the rear sliding block; the front sliding block and the rear sliding block are connected with the assembled track in a horizontal sliding or rolling manner, so that the forward movement of the hanging basket is better assisted, and the friction force is reduced; the split mounting type rails are connected through the bolts, so that the hanging baskets can be quickly laid on the rails in the advancing direction, and the construction efficiency is greatly improved.
The invention has the following beneficial effects:
(1) the core mould, the side mould, the lower flange plate mould and the bottom mould are assembled to form a template system, so that the cantilever pouring construction of the double-layer flange plate concrete structure bridge based on the uniform cross section of the continuous beam is realized.
(2) Through bolted connection between two pin-connected panel tracks, it is swift convenient to install and dismantle at hanging basket antedisplacement in-process, has realized seamless butt joint, need not the welding, has saved manpower and materials, has reduced the potential safety hazard.
(3) First jack, second jack welding are in main purlin system below, by stretch-draw oil pump system control stretch-draw pull rod in turn, have realized the full automatization of hanging the basket and have advanced in succession, and the speed of advancing is fast, has saved the time of installation, dismantlement at every turn, has greatly improved the efficiency of construction, and the jack differential to the deviation accessible hanging basket both sides that the antedisplacement in-process appears is rectified, has reduced and has hung the basket and has appeared the hidden danger of distortion dislocation.
(4) The movable anchor block is convenient to mount and dismount, does not need bolts or welding, is directly fixed at the end part of the assembly type rail through the clamping groove, provides anchoring counter force together with the assembly type rail, can be repeatedly utilized, and improves economic benefits.
Description of the drawings:
FIG. 1 is a side view of a continuously traveling double-decked flange box type concrete structure construction hanging basket;
FIG. 2 is a front view of a continuously traveling double-layer flange plate box type concrete structure construction hanging basket;
FIG. 3 is a schematic diagram of a single assembly type track of a continuously-walking double-layer flange slab box type concrete structure construction hanging basket;
FIG. 4 is a schematic drawing of a pull rod anchoring of a continuously traveling double-layer flange box type concrete structure construction hanging basket;
FIG. 5 is a schematic view of a movable anchor block of a continuously-walking double-layer flange slab box type concrete structure construction hanging basket;
FIG. 6 is a flow chart of a construction method of a continuously-walking double-layer flange slab box type concrete structure construction hanging basket;
in all figures, 1 is a main truss system; 2 is an anchoring system; 3 is a suspension system; 4 is a template system; 41 is a core mould; 42 is a side mould; 43 is a lower flange plate mould; a bottom die 44; 5, a walking system; 511 is a front slider; 512 is a rear sliding block; 52 is a split rail; 521 is section steel; 522 is a diaphragm plate; 523 is an open pore steel plate; 531 is a first jack; 532 is a second jack; 54 is a pull rod; 55 is a movable anchor block; 551 is an anchoring block; 552 is an embedded block; and 6, a poured box girder.
The specific implementation mode is as follows:
in order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. The invention provides a continuous-walking double-layer flange slab box type concrete structure construction hanging basket, which comprises a main truss system 1, an anchoring system 2, a suspension system 3, a template system 4 and a walking system 5, and is characterized in that the main truss system 1 is fixed with a poured box girder 6 through the anchoring system 2, the walking system 5 is arranged between the main truss system 1 and the poured box girder 6, the walking system 5 consists of a front sliding block 511, a rear sliding block 512, an assembled track 52, a first jack 531, a second jack 532, a pull rod 54 and a movable anchor block 55, the front sliding block 511 and the rear sliding block 512 are respectively welded or connected with a front node and a rear node at the lower side of the main truss system 1, the front sliding block 511 and the rear sliding block 512 are respectively fixed with the assembled track 52 in the vertical direction and are horizontally or in rolling connection, the first jack 531 and the second jack 532 are respectively arranged at the rear end parts of the front sliding block 511 and the rear sliding block 512, the movable anchor block 55 is flexibly embedded in the front end part of the assembled track 52 in the advancing direction of concrete pouring, one end of the pull rod 54 is anchored with the movable anchor block 55, the other end of the pull rod longitudinally penetrates through the first jack 531 and the second jack 532 along the poured box girder 6, and the formwork system 4 is assembled by the core formwork 41, the side formwork 42, the lower flange plate formwork 43 and the bottom formwork 44 and is hung around the concrete to be poured in the advancing direction of the box girder pouring of the box girder section through the suspension system 3.
The assembled rail 52 is composed of a plurality of section steels 521 and a plurality of transverse partition plates 522, each assembled rail 52 is formed by sequentially connecting and fixing more than two section steels 521 along the longitudinal direction, a perforated steel plate 523 is arranged at the end part of each section of section steel 521, and the front section steel 521 and the rear section steel 521 are connected in a front-and-back mode through penetrating through the perforated steel plate 523 through bolts to form the assembled rail 52.
The movable anchor block 55 is composed of an anchor block 551 and an embedded block 552, the embedded block 552 is flexibly embedded and connected with the front end of the assembled track 52, the anchor block 551 is vertically connected with the embedded block 552, and the anchor block 551 protrudes out of the section steel 521 of the assembled track 52 and anchors the pull rod 54.
The first jack 531 and the second jack 532 are arranged above each assembled rail 52, and alternately jacking the tension pull rods 54 in series at intervals from front to back so that the main truss system 1 continuously advances towards the pouring direction.
The lower flange plate die 43 and the bottom die 44 extend out of the webs on the two outermost sides of the box girder.
A construction method of a continuously-walking double-layer flange plate box type concrete structure construction hanging basket is characterized by at least comprising the following steps:
A. advancing the assembled track: the assembly type rail 52 at the tail part is detached and moved forwards and is placed on the poured box girder 6 in the forward moving direction of the hanging basket, and is connected and fixed with the assembly type rail 52 at the previous section through bolts;
B. installing a movable anchor block: embedding one end of an embedding block 552 of the movable anchor block 55 into the end part of the assembled rail 52 in the pouring advancing direction;
C. fixing a pull rod: one end of the pull rod 54 sequentially passes through the first jack 531, the front sliding block 511, the second jack 532 and the rear sliding block 512, and the other end is temporarily anchored on the anchoring block 551 of the movable anchoring block 55;
D. starting the first jack: starting a first jack 531 in the sequence of the pouring forward direction, tensioning the pull rod 54, and pushing a front sliding block 511 to enable the main truss system 1 to move forwards;
E. returning oil to reset of the first jack: when the first jack 531 reaches the range, the first jack 531 returns oil, and the original position is recovered;
F. starting the second jack: starting the second jack 532, tensioning the pull rod 54, and pushing the rear sliding block 512 to enable the main truss system 1 to continuously move forwards;
G. returning oil to the second jack and resetting: when the second jack 532 reaches the measuring range, the second jack 532 returns oil and returns to the original position;
H. repeating the steps D to G to enable the main girder system 1 to continuously advance on the assembled track 52 until the advancing amount of the main girder system 1 reaches a specified value;
I. and (3) dismounting the movable anchor block: removing the pull rod 54 on the anchor block 551 of the movable anchor block 55 and detaching the movable anchor block 55 from the end of the sectional rail 52;
J. completing forward movement of the hanging basket: completing the continuous forward movement of the double-layer flange plate box type concrete structure construction hanging basket;
K. circulating walking hanging basket: and C, after the hanging basket is moved in place, completing construction and maintenance of the template, the steel bar and the concrete of the box girder body section, and circulating the steps A-J to complete the next walking of the hanging basket.
Claims (6)
1. A continuously-walking double-layer flange plate box type concrete structure construction hanging basket comprises a main truss system (1), an anchoring system (2), a suspension system (3), a template system (4) and a walking system (5), and is characterized in that the main truss system (1) is fixed with a poured box girder (6) through the anchoring system (2), the walking system (5) is arranged between the main truss system (1) and the poured box girder (6), the walking system (5) is composed of a front sliding block (511), a rear sliding block (512), an assembled track (52), a first jack (531), a second jack (532), a pull rod (54) and a movable anchor block (55), the front sliding block (511) and the rear sliding block (512) are respectively welded or connected with a front sliding block and a rear sliding block at the lower side of the main truss system (1) or anchor bolts, and the front sliding block (511) and the rear sliding block (512) are respectively fixed with the assembled track (52) in the vertical direction at a joint, The formwork system (4) is formed by splicing a core formwork (41), a side formwork (42), a lower flange plate formwork (43) and a bottom formwork (44) and is hung around concrete to be poured in the advancing direction of the box girder section through a suspension system (3).
2. The continuously-walking double-layer flange plate box type concrete structure construction hanging basket as claimed in claim 1, wherein the assembly type rail (52) is composed of a plurality of section steels (521) and a plurality of transverse partition plates (522), each assembly type rail (52) is formed by sequentially connecting and fixing more than two section steels (521) along the longitudinal direction from front to back, an open pore steel plate (523) is arranged at the end part of each section of section steel (521), and the front section steel (521) and the rear section steel (521) are connected in front and back to form the assembly type rail (52) by penetrating through the open pore steel plate (523) through bolts.
3. The continuous walking double-layer flange plate box type concrete structure construction hanging basket as claimed in claim 1, characterized in that the movable anchor block (55) is composed of an anchor block (551) and an embedded block (552), the embedded block (552) is flexibly embedded and connected with the front end of the assembly type track (52), the anchor block (551) is vertically connected with the embedded block (552), and the anchor block (551) protrudes out of the section steel (521) of the assembly type track (52) and forms an anchor for the pull rod (54).
4. The continuously-walking double-layer flange plate box type concrete structure construction hanging basket is characterized in that a first jack (531) and a second jack (532) are arranged above each split mounting type track (52), and tensioning pull rods (54) are alternately jacked in series at intervals from front to back so that a main truss system (1) continuously moves towards a pouring direction.
5. The continuously-walking double-layer flange plate box type concrete structure construction hanging basket as claimed in claim 1, wherein the lower flange plate mould (43) and the bottom mould (44) extend outwards beyond the web plates at the two outermost sides of the box girder.
6. The construction method of the continuously-walking double-layer flange plate box type concrete structure construction hanging basket as claimed in claim 1, characterized by comprising at least the following steps:
A. advancing the assembled track: the assembly type rail (52) at the tail part is detached and moved forwards and is placed on the poured box girder (6) in the forward moving direction of the hanging basket, and is connected and fixed with the assembly type rail (52) at the previous section through bolts;
B. installing a movable anchor block: embedding one end of an embedding block (552) of the movable anchor block (55) into the end part of the assembled track (52) in the pouring advancing direction;
C. fixing a pull rod: one end of the pull rod (54) sequentially passes through the first jack (531), the front sliding block (511), the second jack (532) and the rear sliding block (512), and the other end of the pull rod is temporarily anchored on an anchoring block (551) of the movable anchor block (55);
D. starting the first jack: starting a first jack (531) in the sequence of the pouring forward direction, tensioning a pull rod (54), and pushing a front sliding block (511) to enable a main truss system (1) to move forward;
E. returning oil to reset of the first jack: when the first jack (531) reaches the range, returning oil to the first jack (531), and restoring the original position;
F. starting the second jack: starting a second jack (532), tensioning the pull rod (54), and pushing a rear sliding block (512) to enable the main truss system (1) to continuously move forwards;
G. returning oil to the second jack and resetting: when the second jack (532) reaches the measuring range, the second jack (532) returns oil and restores the original position;
H. repeating the steps D to G to enable the main truss system (1) to continuously advance on the assembled track (52) until the advancing amount of the main truss system (1) reaches a specified value;
I. and (3) dismounting the movable anchor block: removing the pull rod (54) on the anchor block (551) of the movable anchor block (55), and detaching the movable anchor block (55) from the end part of the assembled track (52);
J. completing forward movement of the hanging basket: completing the continuous forward movement of the double-layer flange plate box type concrete structure construction hanging basket;
K. circulating walking hanging basket: and C, after the hanging basket is moved in place, completing construction and maintenance of the template, the steel bar and the concrete of the box girder body section, and circulating the steps A-J to complete the next walking of the hanging basket.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911333214.XA CN110983985A (en) | 2019-12-20 | 2019-12-20 | Continuously-walking double-layer flange plate box type concrete structure construction hanging basket and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911333214.XA CN110983985A (en) | 2019-12-20 | 2019-12-20 | Continuously-walking double-layer flange plate box type concrete structure construction hanging basket and construction method thereof |
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| CN110983985A true CN110983985A (en) | 2020-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319079A (en) * | 2022-01-14 | 2022-04-12 | 江苏沪宁钢机股份有限公司 | Upper and lower double-layer steel bridge girder falling structure of highway bridge and railway bridge and girder falling method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453614A (en) * | 2019-09-18 | 2019-11-15 | 中国建筑第七工程局有限公司 | Self-styled Wavelike steel webplate cast-in-situ box girder Hanging Basket |
| CN211596455U (en) * | 2019-12-20 | 2020-09-29 | 南京林业大学 | Basket is hung in quick construction of double-deck edge of a wing concrete box girder bridge |
-
2019
- 2019-12-20 CN CN201911333214.XA patent/CN110983985A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453614A (en) * | 2019-09-18 | 2019-11-15 | 中国建筑第七工程局有限公司 | Self-styled Wavelike steel webplate cast-in-situ box girder Hanging Basket |
| CN211596455U (en) * | 2019-12-20 | 2020-09-29 | 南京林业大学 | Basket is hung in quick construction of double-deck edge of a wing concrete box girder bridge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319079A (en) * | 2022-01-14 | 2022-04-12 | 江苏沪宁钢机股份有限公司 | Upper and lower double-layer steel bridge girder falling structure of highway bridge and railway bridge and girder falling method thereof |
| CN114319079B (en) * | 2022-01-14 | 2023-08-01 | 江苏沪宁钢机股份有限公司 | Double-deck steel bridge girder falling structure and girder falling method for highway bridge and railway bridge |
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