CN110499711B - Bracket of descending self-moving die carrier and transporting method thereof - Google Patents
Bracket of descending self-moving die carrier and transporting method thereof Download PDFInfo
- Publication number
- CN110499711B CN110499711B CN201910835982.9A CN201910835982A CN110499711B CN 110499711 B CN110499711 B CN 110499711B CN 201910835982 A CN201910835982 A CN 201910835982A CN 110499711 B CN110499711 B CN 110499711B
- Authority
- CN
- China
- Prior art keywords
- bracket
- beams
- chain block
- bridge pier
- connecting beams
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009415 formwork Methods 0.000 claims abstract description 13
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 13
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention belongs to the technical field of bridge construction, and particularly discloses a descending self-moving formwork bracket and a transferring method thereof, which comprise two bracket beams respectively horizontally arranged at the left side and the right side of a bridge pier, wherein the upper side of each bracket beam is provided with a moving formwork trolley for driving the bracket beams to transversely move in the left-right direction, the inner side end of each bracket beam is provided with a Y-shaped connecting arm, the front side and the rear side of the end part of each Y-shaped connecting arm are respectively and rotatably connected with a connecting beam through a rotating shaft, the two bracket beams are respectively and movably connected through the connecting beams at the front side and the rear side of the end part of each bracket, and the connecting beams are mutually connected and locked and fixed through locking devices.
Description
Technical Field
The invention belongs to the technical field of bridge construction, and particularly relates to a bracket of a descending self-moving die carrier and a transporting method thereof.
Background
The traditional descending self-moving die carrier is fixed by pulling a plurality of steel bars between two bracket beams at the left end and the right end of the pier in a die closing state, the installation mode needs to open holes in the pier, the strength of the pier is influenced by larger size of the holes for a thin-wall pier or a hollow pier, meanwhile, the steel bars are removed during die opening, and then the bracket beams need to be transported to the next span by using a crane, so that the operation process is time-consuming and labor-consuming.
Disclosure of Invention
The invention aims to provide a bracket of a descending self-moving die carrier and a transfer method thereof, which have the advantages of good rigidity, firm structure and suitability for thin-wall piers and hollow piers.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a descending is from moving die carrier bracket, including two bracket beams that set up in pier left and right sides respectively the level, every bracket beam upside all is equipped with the moving die carrier dolly of drive bracket beam along left and right directions sideslip, every bracket beam inboard end all is equipped with a Y font linking arm, both sides are connected with the linking beam through the pivot rotation respectively around every Y font linking arm tip, two bracket beams are respectively through the linking beam swing joint of both sides around its tip, and between interconnect's the linking beam and through locking means locking fixed.
Further, the four connecting beams form a square structure, the bridge pier is located in an area surrounded by the four connecting beams, and the locking device comprises pin holes arranged at the end parts of the connecting beams and locking pins for connecting and fixing the two connecting beams.
Further, the bracket leg is further arranged at the lower part of the bracket respectively, the bracket leg is vertically arranged, the upper end of the bracket leg is fixedly connected with the bracket, and the lower end of the bracket leg is fixedly connected with the ground.
Furthermore, the bottom of the pier is also provided with a preset hole in the horizontal direction, a reinforcing steel bar is inserted into the preset hole, and two ends of the reinforcing steel bar are respectively fixedly connected with the bracket supporting legs.
A method for transporting a bracket of a descending self-moving die carrier comprises the following steps:
a) The initial state of the movable formwork is a mold closing state, pouring is carried out on the span, after the concrete box girder is poured, locking of the two locking mechanisms on the front side and the rear side of the pier is released, and bracket supporting legs on the bracket girder and reinforcing steel bars on the bracket supporting legs are removed;
b) One end of the chain block is fixed on the bracket beam, the other end of the chain block is fixed on the connecting beam at the rear side of the bridge pier, and the two connecting beams at the rear side of the bridge pier are pulled outwards to rotate by the chain block, wherein the rotation angle is more than 90 degrees;
c) The movable die carrier trolley drives the bracket beam to transversely move outwards relative to the bridge pier;
d) When the bracket beam leaves the bridge pier, one end of the chain block is fixed on the bracket beam, the other end of the chain block is fixed on the connecting beam at the front end, and the two connecting beams at the front side of the bridge pier are pulled outwards to rotate by the chain block, wherein the rotation angle is more than 90 degrees; e) The movable die carrier moves longitudinally, the bracket beams drive into the next span, and the two bracket beams move to the left and right sides of the pier of the next span;
f) One end of the chain block is fixed on the bracket beam, the other end of the chain block is fixed on a connecting beam at the front end of the bridge pier, the two connecting beams at the front side of the bridge pier are pulled inwards to rotate by the chain block until the two connecting beams rotate to be in a straight line, one end of the chain block is fixed on the bracket beam, the other end of the chain block is fixed on the connecting beam at the rear end of the bridge pier, and the two connecting beams at the rear side of the bridge pier are pulled inwards to rotate by the chain block until the two connecting beams rotate to be in a straight line;
g) The movable formwork trolley drives the bracket beam to transversely move inwards relative to the bridge pier, the locking device locks and fixes the inner side ends of the two connecting beams at the front end of the bridge, and the locking device locks and fixes the inner side ends of the two connecting beams at the rear end of the bridge.
Furthermore, in the step g), bracket supporting legs are respectively arranged at the lower ends of the bracket beams according to the use requirement, and reinforcing steel bars are arranged between the two bracket supporting legs for reinforcement.
The invention has the advantages that: compared with the traditional fixing mode that the descending self-moving die carrier bracket is tensioned by using the reinforcing steel bars, the moving die carrier bracket provided by the invention has high strength and light weight, can save the material for manufacturing the bracket, saves resources, and is particularly suitable for double-column piers, hollow piers or thin-wall piers because the two brackets are rigidly connected by using the connecting beam without generating horizontal transverse bending moment or arranging a preformed hole on the pier. Under the limit state, the bracket beam can be infinitely close to the ground, so that the construction of the ultra-short pier can be realized; when the movable die carrier drives the bracket beams to pass Kong Daoyun, the locking device is only required to be unlocked, the bracket beams can be enabled to longitudinally move along with the movable die carrier by turning the connecting beams outwards, the connecting beams are rotated inwards after reaching the pier of the next span, the two connecting beams which are in a straight line are locked and fixed by the locking device, a crane is not required to be used for lifting in the whole process, the safety factor is enhanced, and manual drainage is not required in the transportation process for water operation.
Drawings
FIG. 1 is a schematic diagram of a front view of the present invention;
FIG. 2 is a schematic view of a structure of a shaft portion according to the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic diagram I illustrating a state of the via hole according to the present invention;
FIG. 5 is a schematic diagram II illustrating a state of the via hole according to the present invention;
FIG. 6 is a schematic diagram III illustrating a state of the invention when a via is formed;
FIG. 7 is a schematic diagram I showing a state where the bracket beam of the present invention is inverted into the next bridge abutment;
FIG. 8 is a schematic view II showing a state where the bracket beam of the present invention is inverted into the next bridge abutment;
FIG. 9 is a schematic diagram III showing the inverted transportation of the bracket beam into the next bridge abutment;
FIG. 10 is a schematic view IV of the inverted transporting of the bracket beam into the next bridge pier;
in the figure, 1, a bridge pier; 2. a bracket beam; 3. a movable mould frame trolley; 4. a connecting beam; 5. bracket supporting legs; 6. reinforcing steel bars; 7. a rotating shaft; 8. and a locking pin.
Detailed Description
In this application, the front, rear, left, right, etc. of the azimuth terms are referred to in fig. 1.
As shown in the figure, a descending self-moving formwork bracket comprises two bracket beams 2, which are respectively positioned at the left side and the right side of a bridge pier 1, wherein the bracket beams 2 are connected under a moving formwork trolley 3 corresponding to the same side, the moving formwork trolley 3 drives the bracket beams 2 to transversely move along the left and the right directions (the moving formwork trolley drives the bracket beams to transversely move left and right, which belongs to the technical means commonly used in the art, and is described in the application document with specific reference publication No. CN 201310214235), the inner ends of the bracket beams 2 are provided with Y-shaped connecting arms, the front side and the rear side of each connecting arm are respectively provided with a connecting beam 4 through a rotating shaft 7, when the two connecting beams 4 at the front side of the bridge pier 1 rotate to be in a straight line, the inner ends of the two connecting beams 4 are locked and fixed through locking devices, when the two connecting beams 4 at the rear side of the bridge pier 1 rotate to be in a straight line, the inner ends of the two connecting beams 4 are locked and fixed through the locking devices, the four connecting beams 4 are combined into a square structure, the four connecting beams 4 are positioned in the area in the four connecting beams 4, the locking devices can be in the following structure, and the connecting beams are coaxially inserted into the two pin holes of the two coaxial pin holes of the two connecting beams 4 at the front sides of the bridge pier 1, and the two coaxial pin holes are coaxially inserted into the two pin holes of the two coaxial pin holes of the two connecting beams 4 at the two front sides. The two connecting beams 4 which rotate to the same straight line are locked by the locking pin 8, so that the operation is simple, and the construction efficiency is improved; because bracket beam 2 and two pivoted tie-beams 4 become Y font structure, two tie-beams 4 of homonymy utilize locking means locking fixed simultaneously, therefore compare traditional decline by oneself movable die carrier bracket and utilize the taut fixed mode of reinforcing bar, its intensity is high, light in weight, can save the material that the bracket was made, saved the resource, two brackets utilize tie-beams 4 to carry out rigid connection, do not produce horizontal transverse bending moment, do not need to set up the preformed hole on pier 1 yet, specially adapted double column mound, hollow mound or thin wall mound, bracket beam 2 can infinitely be close to ground under the limit state, therefore can realize the construction of super short mound, when movable die carrier drives bracket beam 2 to cross Kong Daoyun, only need to remove locking means, overturn tie-beam 4 outside and open can make bracket beam 2 follow the removal and realize the vertical through hole, reach the pier 1 department of next span again with tie-beam 4 to inside rotation, utilize locking means to lock two tie-beams 4 that are straight line, the whole process need not use the crane, the high altitude construction is not needed, the high-level work is also need not to be suitable for the overhead working, the water safety coefficient is moved down to the work.
Preferably, the bracket support comprises two bracket support legs 5 which are vertically arranged, the upper ends of the bracket support legs 5 are connected with the bottoms of bracket beams 2 on the same side, the lower ends of the bracket support legs are in contact with the ground, the bracket beams 2 can be supported by the two bracket support legs 5, the integral rigidity of the equipment is improved, the bracket support can further comprise preset holes which are horizontally arranged in the pier 1, reinforcing steel bars 6 are inserted into the preset holes, the two ends of the reinforcing steel bars 6 are respectively connected with the bracket support legs 5 on the same side, the two bracket support legs 5 are tensioned and fixed by the reinforcing steel bars 6, and the firmness of connection and fixation of the bracket support legs 5 is improved.
A method for transporting a bracket of a descending self-moving die carrier comprises the following steps:
a) The movable formwork is in a mold closing state, four connecting beams 4 form a square structure, the bridge pier 1 is positioned in the areas in the four connecting beams 4, a concrete box girder is poured over the bridge pier, after the concrete box girder is poured, two locking devices on the front side and the rear side of the bridge pier 1 are unlocked, and bracket supporting legs on the bracket beams and reinforcing steel bars on the bracket supporting legs are removed;
b) One end of a chain block is fixed on a bracket beam 2, the other end of the chain block is fixed on a connecting beam 4 at the rear side of a pier 1, and the two connecting beams 4 at the rear side of the pier 1 are pulled outwards to rotate by the chain block, wherein the rotation angle is more than 90 degrees;
c) The movable formwork trolley 3 drives the bracket beam 2 to transversely move outwards relative to the bridge pier 1;
d) When the bracket beam 2 leaves the bridge pier 1, one end of the chain block is fixed on the bracket beam 2, the other end of the chain block is fixed on the connecting beam 4 at the front end, and the two connecting beams 4 at the rear side of the bridge pier 1 are pulled outwards to rotate by the chain block, wherein the rotation angle is more than 90 degrees; e) The movable die carrier moves longitudinally, the bracket beams 2 drive into the next span, and the two bracket beams 2 move to the left side and the right side of the pier 1 of the next span;
f) One end of a chain block is fixed on a bracket beam 2, the other end of the chain block is fixed on a connecting beam 4 at the front end of a bridge pier 1, the two connecting beams 4 at the front side of the bridge pier 1 are pulled and rotated inwards by the chain block until the two connecting beams 4 rotate to be in a straight line, one end of the chain block is fixed on the bracket beam 2, the other end of the chain block is fixed on the connecting beam 4 at the rear end of the bridge pier 1, and the two connecting beams 4 at the rear side of the bridge pier 1 are pulled and rotated inwards by the chain block until the two connecting beams 4 rotate to be in a straight line;
g) The movable formwork trolley 3 drives the bracket beams 2 to transversely move inwards relative to the bridge pier 1, the locking device locks and fixes the inner side ends of the two connecting beams 4 at the front end of the bridge 1, the locking device locks and fixes the inner side ends of the two connecting beams 4 at the rear end of the bridge 1, bracket legs are respectively arranged at the lower ends of the bracket beams according to use requirements, and reinforcing steel bars are arranged between the two bracket legs for reinforcement; the bracket beam is not required to be disassembled in the whole process, and a crane is not required to be used for hoisting and transporting, so that the safety is improved.
Claims (5)
1. The utility model provides a descending is from moving die carrier bracket, includes two bracket beams that set up in pier left and right sides respectively the level, and every bracket beam upside all is equipped with the moving die carrier dolly of the sideslip of drive bracket beam along left and right directions, its characterized in that: the inner side end of each bracket beam is provided with a Y-shaped connecting arm, the front side and the rear side of the end part of each Y-shaped connecting arm are respectively and rotatably connected with connecting beams through rotating shafts, the two bracket beams are respectively and movably connected through the connecting beams at the front side and the rear side of the end part of each bracket beam, and the connecting beams which are mutually connected are locked and fixed through a locking device; the bridge pier is located in an area surrounded by the four connecting beams, the locking device comprises pin holes arranged at the ends of the connecting beams and locking pins for connecting and fixing the two connecting beams, and the two connecting beams are locked by the locking pins which rotate to the same straight line.
2. The downlink self-moving scaffold bracket of claim 1, wherein: the bracket is characterized in that bracket legs are further arranged at the lower parts of the brackets respectively, the bracket legs are vertically arranged, the upper ends of the bracket legs are fixedly connected with the brackets, and the lower ends of the bracket legs are fixedly connected with the ground.
3. The downlink self-moving scaffold bracket of claim 2, wherein: the pier bottom still is equipped with the preset hole of horizontal direction, preset downthehole reinforcing bar that inserts is equipped with, reinforcing bar both ends respectively with bracket landing leg fixed connection.
4. A method for transporting a descending self-moving scaffold bracket according to any one of claims 1 to 3, comprising the steps of:
a) The initial state of the movable formwork is a mold closing state, concrete box girder pouring is carried out on the current span, after the concrete box girder pouring is finished, locking of two locking mechanisms on the front side and the rear side of the pier is released, and bracket supporting legs on the bracket girder and reinforcing steel bars on the bracket supporting legs are removed;
b) One end of the chain block is fixed on the bracket beam, the other end of the chain block is fixed on the connecting beam at the rear side of the bridge pier, and the two connecting beams at the rear side of the bridge pier are pulled outwards to rotate by the chain block, wherein the rotation angle is more than 90 degrees;
c) The movable die carrier trolley drives the bracket beam to transversely move outwards relative to the bridge pier;
d) When the bracket beam leaves the bridge pier, one end of the chain block is fixed on the bracket beam, the other end of the chain block is fixed on the connecting beam at the front end, and the two connecting beams at the front side of the bridge pier are pulled outwards to rotate by the chain block, wherein the rotation angle is more than 90 degrees; e) The movable die carrier moves longitudinally, the bracket beams drive into the next span, and the two bracket beams move to the left and right sides of the pier of the next span;
f) One end of the chain block is fixed on the bracket beam, the other end of the chain block is fixed on a connecting beam at the front end of the bridge pier, the two connecting beams at the front side of the bridge pier are pulled inwards to rotate by the chain block until the two connecting beams rotate to be in a straight line, one end of the chain block is fixed on the bracket beam, the other end of the chain block is fixed on the connecting beam at the rear end of the bridge pier, and the two connecting beams at the rear side of the bridge pier are pulled inwards to rotate by the chain block until the two connecting beams rotate to be in a straight line;
g) The movable formwork trolley drives the bracket beam to transversely move inwards relative to the bridge pier, the locking device locks and fixes the inner side ends of the two connecting beams at the front end of the bridge, and the locking device locks and fixes the inner side ends of the two connecting beams at the rear end of the bridge.
5. The method for transporting the descending self-moving die carrier bracket according to claim 4, wherein the method comprises the following steps: and in the step g), bracket supporting legs are respectively arranged at the lower ends of the bracket beams according to the use requirement, and reinforcing steel bars are arranged between the two bracket supporting legs for reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910835982.9A CN110499711B (en) | 2019-09-05 | 2019-09-05 | Bracket of descending self-moving die carrier and transporting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910835982.9A CN110499711B (en) | 2019-09-05 | 2019-09-05 | Bracket of descending self-moving die carrier and transporting method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110499711A CN110499711A (en) | 2019-11-26 |
| CN110499711B true CN110499711B (en) | 2024-02-09 |
Family
ID=68591384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910835982.9A Active CN110499711B (en) | 2019-09-05 | 2019-09-05 | Bracket of descending self-moving die carrier and transporting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110499711B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101162596B1 (en) * | 2012-02-21 | 2012-07-04 | 동방엔지니어링 주식회사 | Middle leg for launching girder |
| CN102953343A (en) * | 2012-11-30 | 2013-03-06 | 山东省路桥集团有限公司 | Descending bracket self-mobile model framework bridge fabrication machine |
| CN103382701A (en) * | 2013-06-03 | 2013-11-06 | 四川公路桥梁建设集团有限公司 | Transport system for corbel mechanism of under-deck non-self-propelled movable mould frame and mounting method of transport system |
| FR3013066A1 (en) * | 2013-11-14 | 2015-05-15 | Outinord St Amand | WORK PLATFORM IN CONVERTIBLE ENCORBELLEMENT |
| CN107740350A (en) * | 2017-09-21 | 2018-02-27 | 郑州新大方重工科技有限公司 | The bridge pier column construction method and its passing method of full precast bridge Bridge Erector |
| CN110158470A (en) * | 2019-04-09 | 2019-08-23 | 中铁大桥局集团有限公司 | It can the longitudinal and transverse method for moving Construction Through Form on Traveler highway continuous beam under a kind of complex environment |
| CN210975563U (en) * | 2019-09-05 | 2020-07-10 | 中交一公局集团有限公司 | Down self-propelled movable mould frame bracket |
-
2019
- 2019-09-05 CN CN201910835982.9A patent/CN110499711B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101162596B1 (en) * | 2012-02-21 | 2012-07-04 | 동방엔지니어링 주식회사 | Middle leg for launching girder |
| CN102953343A (en) * | 2012-11-30 | 2013-03-06 | 山东省路桥集团有限公司 | Descending bracket self-mobile model framework bridge fabrication machine |
| CN103382701A (en) * | 2013-06-03 | 2013-11-06 | 四川公路桥梁建设集团有限公司 | Transport system for corbel mechanism of under-deck non-self-propelled movable mould frame and mounting method of transport system |
| FR3013066A1 (en) * | 2013-11-14 | 2015-05-15 | Outinord St Amand | WORK PLATFORM IN CONVERTIBLE ENCORBELLEMENT |
| CN107740350A (en) * | 2017-09-21 | 2018-02-27 | 郑州新大方重工科技有限公司 | The bridge pier column construction method and its passing method of full precast bridge Bridge Erector |
| CN110158470A (en) * | 2019-04-09 | 2019-08-23 | 中铁大桥局集团有限公司 | It can the longitudinal and transverse method for moving Construction Through Form on Traveler highway continuous beam under a kind of complex environment |
| CN210975563U (en) * | 2019-09-05 | 2020-07-10 | 中交一公局集团有限公司 | Down self-propelled movable mould frame bracket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110499711A (en) | 2019-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108442255B (en) | Movable formwork bridge fabrication machine and construction method for cast-in-situ bridge fabrication | |
| KR20140084107A (en) | Self-Launching Movable Scaffolding System | |
| CN101408019A (en) | Low altitude prefabricated case beam internal mold and construction method thereof | |
| CN202658533U (en) | Movable formwork of curved bridge with variable width | |
| CN106012859A (en) | Double-deflection hollow plate beam internal mould and bidirectional rigid locking support structure | |
| CN112647436A (en) | Porous cast-in-situ box culvert bottom plate and construction method | |
| CN206967729U (en) | Precast T-Beam floorings reinforcing bar active ligation mold | |
| CN105088970A (en) | Construction method of corrugated steel web PC box girder cable-stayed bridge | |
| CN210975563U (en) | Down self-propelled movable mould frame bracket | |
| CN110499711B (en) | Bracket of descending self-moving die carrier and transporting method thereof | |
| CN114922132B (en) | Construction method for upper structure of high pile wharf based on combined inclined piles | |
| CN215104759U (en) | Walking type bridge floor guardrail pouring system | |
| AU2021435256B2 (en) | Double-span movable formwork of lower bearing type and construction method | |
| CN105648908A (en) | Decorating trolley used for crossing existing lines or crossing bridges and construction method | |
| CN205874980U (en) | Two traitorous internal mold of hollow plate beam and two -way rigidity locking bearing structure | |
| CN214883071U (en) | Porous cast-in-situ box culvert bottom plate template system | |
| CN209742366U (en) | Supporting system for integral lifting in cylinder | |
| CN210256628U (en) | Self-adaptive outer mold system for prefabricating concrete | |
| CN115094836B (en) | Grooving machine and grooving method | |
| CN112695650A (en) | Downward movable formwork method construction method for shoal variable-curve wide cast-in-place beam | |
| CN219280620U (en) | Water conservancy aqueduct making machine | |
| CN214219733U (en) | Arch type support light mobile trolley system under limited operation space condition | |
| CN218562116U (en) | Light drawer type internal mold based on construction hanging basket | |
| CN216760257U (en) | Device for mounting anchor backing plate on precast box girder end mould | |
| CN213116337U (en) | Special tunnel lining platform truck of foldable widening section |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |