CN104404883A - Inner working platform for rapid construction of bridge pier and construction method using inner working platform - Google Patents
Inner working platform for rapid construction of bridge pier and construction method using inner working platform Download PDFInfo
- Publication number
- CN104404883A CN104404883A CN201410668270.XA CN201410668270A CN104404883A CN 104404883 A CN104404883 A CN 104404883A CN 201410668270 A CN201410668270 A CN 201410668270A CN 104404883 A CN104404883 A CN 104404883A
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- steel structure
- working platform
- bridge pier
- structure framework
- platform
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- 238000010276 construction Methods 0.000 title claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 75
- 239000010959 steel Substances 0.000 claims abstract description 75
- 238000003466 welding Methods 0.000 claims abstract description 5
- 210000003205 muscle Anatomy 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000003462 Bender reaction Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 229910000746 Structural steel Inorganic materials 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000019994 cava Nutrition 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003252 repetitive effect Effects 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides an inner working platform for rapid construction of a bridge pier and a construction method using the inner working platform. The inner working platform comprises at least one unit module which is overlapped vertically, wherein each unit module comprises a steel structure framework, a fixed platform, movable frameworks, a movable platform, stairs and protection guardrails, wherein each steel structure framework is formed by welding structural steel; the steel structure framework of each unit module is of a two-layered structure; fixing holes are correspondingly formed in the top and the bottom of each steel structure framework; the steel structure frameworks of two layers of adjacent overlapped unit modules penetrate through the fixing holes to be connected by plugs or bolts; each fixed platform is flatly laid above each layer of structure of the corresponding steel structure framework; the movable frameworks are movably connected with the two sides of the corresponding steel structure framework by plugs; each to two sides of each layer of structure is movably connected with one movable framework; the movable platforms are flatly laid on the movable frameworks; the stairs are connected between the two layers of structures of the steel structure frameworks; the protection guardrails are arranged at the peripheries of the stairs. With the adoption of the inner working platform, the construction efficiency and the construction quality can be effectively improved.
Description
Technical field
The present invention relates to Construction Technology field, be specifically related to working platform and construction method in a kind of bridge pier rapid construction.
Background technology
High-speed railway bridge engineering accounts for sizable proportion, structure many employings round end type bridge pier of bridge pier, bridge pier height from several meters to tens meters, even more than 20 meter.Simple supported box beam bridge pier adopts two-wire round ended pier, is made up of pinner, top cap and pier shaft, and from 6m ~ 20m not etc., vertical main muscle is Φ 16 screw-thread steel to bridge pier height, and stirrup is φ 10 round steel, the horizontal lacing wire φ 10 of pier shaft, top cap configuring multi-layer reinforced mesh.Such bridge pier structure is relatively simple, and during construction, repetitive operation is many, often can not cause the great attention of most personnel.Construction method of the prior art first sets up outside bridge pier or steel pipe scaffold in bridge pier, utilizes scaffold to carry out reinforcing bar binding and model sheetinstallat.
There is larger defect in said method.There is larger danger in the process of scaffold building, the danger that the existence of bad scaffold itself is caved in and scaffold building quality is checked on, have impact on the personal safety of operating personnel greatly.The working space that scaffold can provide is narrow, and reinforcing bar binding efficiency is low, and the time is long.Bridge pier main muscle diameter is little, and cage of reinforcement rigidity is little, is easily out of shape, and needs to increase a lot of bearing rod, adopts the method for scaffold construction greatly to affect the normal operation of constructor, reduces efficiency of construction and construction quality.After reinforcing bar binding completes, due to the impact of scaffold, the narrow space of installation form, affects the normal operation of model sheetinstallat, and cause model sheetinstallat efficiency low, the time is long.And the template collision scaffold easily sling in work progress, cause the danger that scaffold caves in.
Being not difficult to find out, also there is certain defect in prior art.
Summary of the invention
Technical problem to be solved by this invention is to provide working platform and construction method in a kind of bridge pier rapid construction, replaces scaffold with working platform, effectively improves efficiency of construction and construction quality.
For achieving the above object, the present invention is by the following technical solutions:
Working platform in a kind of bridge pier rapid construction, comprise the unit module of at least one vertical pile, each unit module comprises steel structure framework, fixed platform, movable skeleton, movable platform, stair and guard rail; Steel structure framework adopts shaped steel to be welded, the steel structure framework of each unit module is set to double-layer structure, the top of steel structure framework and bottom respectively correspondence are provided with fixing hole, and the steel structure framework of the unit module that adjacent two layers stacks is connected through fixing hole by latch or bolt; Fixed platform is laid on every Rotating fields of steel structure framework; Movable skeleton is movably connected on the both sides of steel structure framework by latch, and the both sides of every Rotating fields are all connected with a movable skeleton; Movable platform is laid on movable skeleton; Stair are connected with between the double-layer structure of steel structure framework; Guard rail is provided with around stair.
Further, described fixed platform or movable platform are plank or steel plate.
Further, every Rotating fields of described steel structure framework is high 1.8 meters-2 meters.
Further, the bottom being positioned at the steel structure framework of bottom is fixed on concrete surface by expansion bolt.
Further, described movable skeleton is rectangular, trapezoidal or semicircle.
A kind of bridge pier rapid constructing method, comprises the following steps:
S01, make above-mentioned interior working platform, according to the outline line welding production steel structure framework of bridge pier and movable skeleton beyond job location, within requiring that steel structure framework and movable skeleton are positioned at bridge pier outline line;
The concrete surface at S02, cleaning bridge pier place, job location, guarantees surfacing foreign;
S03, install in working platform, the unit module of interior working platform is lifted into the concrete surface at bridge pier place and connection layer by layer by loop wheel machine;
S04, utilize sash weight positioned edge bridge pier pier shaft short transverse to tie up 2 ~ 3 road positioning bars, positioning bar and interior working platform are fixed;
Every layer of platform of S05, interior working platform arranges a bar bender, then together main muscle is holded up and spacer bars colligation; Main muscle has all tied up rear colligation stirrup and nose circle " Eight characters " stirrup, during colligation stirrup, the top layer of interior working platform arranges 2 bar benders, be responsible for specially and pinion stirrup two ends with 2 ropes and mentioned by stirrup, other bar benders stand on interior working platform and carry out colligation, then colligation topping cushion block; Attention vacates several main muscle in bottom and last colligation waited until by stirrup, as the import and export of operating personnel;
S06, installation form, after model sheetinstallat completes, hang out interior working platform, and then the horizontal lacing wire of colligation pier shaft or top cap reinforcing bar, complete steel bar template engineering;
S07, carry out pouring concrete, from lower to upper merogenesis cast bridge pier pier shaft.
Further, described step S03 comprises:
S031, by loop wheel machine by the concrete surface of bottom floor units module hoisting to bridge pier place, and to be connected and fixed bottom the steel structure framework of bottom floor units module with concrete surface by expansion bolt;
S032, successively lift remaining unit module, be connected and fixed by latch or bolt between the steel structure framework of adjacent two layers unit module.
Further, described step S06 comprises:
S061, installation form;
S062, dismantle connecting bolt between steel structure framework layer by layer, pack up movable skeleton;
S063, loop wheel machine is utilized successively to hang out unit module;
The horizontal lacing wire of S064, colligation pier shaft or top cap reinforcing bar.
Working platform and construction method in a kind of bridge pier rapid construction provided by the present invention, have the following advantages:
Replace scaffold with working platform, significantly improve efficiency of construction and construction quality;
Ensure that the personal security of work high above the ground preferably, effectively improve the comfortableness of working environment, reduce the labour intensity of operating personnel, ensure the stability of bridge pier reinforcing bar;
Interior ramp moduleization design, install simple, reduce the mounting or dismounting cycle, stability is high;
The input of labour, plant equipment, template etc. can be reduced, save construction cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of steel structure framework.
Fig. 2 is the top view of unit module.
Description of reference numerals:
1, steel structure framework 2, stair
3, movable skeleton 4, fixed platform
5, movable platform 6, latch
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the embodiment of the present invention and accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.It should be noted that, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
Refer to Fig. 1 and Fig. 2, the present invention specifically discloses working platform in a kind of bridge pier rapid construction, comprise the unit module of at least one vertical pile, each unit module comprises steel structure framework 1, fixed platform 4, movable skeleton 3, movable platform 5, stair 2 and guard rail; Steel structure framework 1 adopts shaped steel to be welded, the steel structure framework 1 of each unit module is set to double-layer structure, the top of steel structure framework 1 and bottom respectively correspondence are provided with fixing hole, and the steel structure framework 1 of the unit module that adjacent two layers stacks is connected through fixing hole by latch 6 or bolt; Fixed platform 4 is laid on every Rotating fields of steel structure framework 1; Movable skeleton 3 is movably connected on the both sides of steel structure framework 1 by latch 6, and the both sides of every Rotating fields are all connected with a movable skeleton 3; Movable platform 5 is laid on movable skeleton 3; Stair 2 are connected with between the double-layer structure of steel structure framework 1; Guard rail is provided with around stair 2.
Be flexibly connected between movable skeleton 3 with fixing skeleton, allow to receive movable skeleton 3.Operating personnel carries out needing when constructing to stand in fixed platform 4 and movable platform 5.Fixing skeleton and movable skeleton 3 are all carry out welding production by shaped steel such as angle steel, channel-section steel, i iron beyond job location, preferably prefabricated in the place that the environment such as factory are comparatively superior, then the job location being transported to outfield is to be installed.Only to need in job location by loop wheel machine, unit module vertical pile to be connected and fixed by latch 6 or bolt, a complete interior working platform can be assembled.Similarly, after construction is complete, interior working platform can successively carry out dismantling and reclaiming, and waits until next construction usage.
Different from general scaffold, interior working platform is without the need to carrying out loaded down with trivial details and attached dangerously to build at every turn, and interior working platform can provide and stablizes broad plane of standing, and construction operation difficulty is reduced greatly, also effectively can improve construction quality.Every Rotating fields is equipped with stair 2 convenient working personnel and moves between different aspects, and guard rail then shields to operating personnel, the personal safety of effective guarantee operating personnel.
As preferably, described fixed platform 4 or movable platform 5 are plank or steel plate.The Main Function of fixed platform 4 and movable platform 5 is for operating personnel provides plane of standing, and is ensureing the plank or steel plate that preferably adopt lightweight under well-set prerequisite.
As preferably, every Rotating fields of described steel structure framework 1 is high 1.8 meters-2 meters.This highly meets the height of general job personnel, ensures again to save most space simultaneously, reduces and manufactures and cost of transportation.Meanwhile, ensure operating personnel can freely movable while reduce floor height as far as possible and help the convenience ensureing and construct, there will not be the region that to there is operating personnel between double-layer structure and cannot touch.
As preferably, the bottom being positioned at the steel structure framework 1 of bottom is fixed on concrete surface by expansion bolt.Apparently, the stability being positioned at the steel structure framework 1 of bottom is vital, has material impact to the stability of the steel structure framework 1 being positioned at upper strata.Firm in order to ensure the integral installation of interior working platform, need the steel structure framework 1 of external force to bottom by expansion bolt to be fixed, the steel structure framework 1 of bottom is taken root.
As preferably, described movable skeleton 3 is rectangular, trapezoidal or semicircle.Semicircular movable skeleton 3 is especially applicable to round ended pier, and its profile with round ended pier is the most identical, and the entire area of the movable platform 5 caused also is maximum, and thus most convenient operating personnel constructs.Trapezoidal and movable skeleton 3 that is rectangle is convenient to manufacture most.The type selecting of movable skeleton 3 should be chosen according to physical condition.
Embodiment two
The present embodiment specifically discloses a kind of bridge pier rapid constructing method, comprises the following steps:
S01, make above-mentioned interior working platform, according to the outline line welding production steel structure framework 1 of bridge pier and movable skeleton 3 beyond job location, within requiring that steel structure framework 1 and movable skeleton 3 are positioned at bridge pier outline line;
The concrete surface at S02, cleaning bridge pier place, job location, guarantees surfacing foreign;
S03, install in working platform, the unit module of interior working platform is lifted into the concrete surface at bridge pier place and connection layer by layer by loop wheel machine;
S04, utilize sash weight positioned edge bridge pier pier shaft short transverse to tie up 2 ~ 3 road positioning bars, positioning bar and interior working platform are fixed;
Every layer of platform of S05, interior working platform arranges a bar bender, then together main muscle is holded up and spacer bars colligation; Main muscle has all tied up rear colligation stirrup and nose circle " Eight characters " stirrup, during colligation stirrup, the top layer of interior working platform arranges 2 bar benders, be responsible for specially and pinion stirrup two ends with 2 ropes and mentioned by stirrup, other bar benders stand on interior working platform and carry out colligation, then colligation topping cushion block; Attention vacates several main muscle in bottom and last colligation waited until by stirrup, as the import and export of operating personnel;
S06, installation form, after model sheetinstallat completes, hang out interior working platform, and then the horizontal lacing wire of colligation pier shaft or top cap reinforcing bar, complete steel bar template engineering;
S07, carry out pouring concrete, from lower to upper merogenesis cast bridge pier pier shaft.
Specifically, described step S03 comprises:
S031, by loop wheel machine by the concrete surface of bottom floor units module hoisting to bridge pier place, and to be connected and fixed bottom the steel structure framework 1 of bottom floor units module with concrete surface by expansion bolt;
S032, successively lift remaining unit module, be connected and fixed by latch 6 or bolt between the steel structure framework 1 of adjacent two layers unit module.
Specifically, described step S06 comprises:
S061, installation form;
S062, dismantle connecting bolt between steel structure framework 1 layer by layer, pack up movable skeleton 3;
S063, loop wheel machine is utilized successively to hang out unit module;
The horizontal lacing wire of S064, colligation pier shaft or top cap reinforcing bar.
Working platform and construction method in a kind of bridge pier rapid construction provided by the invention, replace scaffold with working platform, significantly improves efficiency of construction and construction quality.Interior working platform can provide better working environment, ensure that the personal security of work high above the ground preferably, the comfortableness of effective raising working environment, carries out by interior working platform the labour intensity that bridge pier rapid construction effectively can reduce operating personnel, ensures the stability of bridge pier reinforcing bar.Interior ramp moduleization design, install simple, reduce the mounting or dismounting cycle, stability is high.In adopting, working platform carries out the input that Bridge Pier Construction can reduce labour, plant equipment, template etc., saves construction cost.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. a working platform in bridge pier rapid construction, it is characterized in that: the unit module comprising at least one vertical pile, each unit module comprises steel structure framework, fixed platform, movable skeleton, movable platform, stair and guard rail; Steel structure framework adopts shaped steel to be welded, the steel structure framework of each unit module is set to double-layer structure, the top of steel structure framework and bottom respectively correspondence are provided with fixing hole, and the steel structure framework of the unit module that adjacent two layers stacks is connected through fixing hole by latch or bolt; Fixed platform is laid on every Rotating fields of steel structure framework; Movable skeleton is movably connected on the both sides of steel structure framework by latch, and the both sides of every Rotating fields are all connected with a movable skeleton; Movable platform is laid on movable skeleton; Stair are connected with between the double-layer structure of steel structure framework; Guard rail is provided with around stair.
2. working platform in bridge pier rapid construction according to claim 1, is characterized in that: described fixed platform or movable platform are plank or steel plate.
3. working platform in bridge pier rapid construction according to claim 1, is characterized in that: every Rotating fields of described steel structure framework is high 1.8 meters-2 meters.
4. working platform in bridge pier rapid construction according to claim 1, is characterized in that: the bottom being positioned at the steel structure framework of bottom is fixed on concrete surface by expansion bolt.
5. working platform in bridge pier rapid construction according to claim 1, is characterized in that: described movable skeleton is rectangular, trapezoidal or semicircle.
6. a bridge pier rapid constructing method, is characterized in that, comprises the following steps:
Working platform in described in S01, making claim 1 to 5 are arbitrary, according to the outline line welding production steel structure framework of bridge pier and movable skeleton beyond job location, within requiring that steel structure framework and movable skeleton are positioned at bridge pier outline line;
The concrete surface at S02, cleaning bridge pier place, job location, guarantees surfacing foreign;
S03, install in working platform, the unit module of interior working platform is lifted into the concrete surface at bridge pier place and connection layer by layer by loop wheel machine;
S04, utilize sash weight positioned edge bridge pier pier shaft short transverse to tie up 2 ~ 3 road positioning bars, positioning bar and interior working platform are fixed;
Every layer of platform of S05, interior working platform arranges a bar bender, then together main muscle is holded up and spacer bars colligation; Main muscle has all tied up rear colligation stirrup and nose circle " Eight characters " stirrup, during colligation stirrup, the top layer of interior working platform arranges 2 bar benders, be responsible for specially and pinion stirrup two ends with 2 ropes and mentioned by stirrup, other bar benders stand on interior working platform and carry out colligation, then colligation topping cushion block; Attention vacates several main muscle in bottom and last colligation waited until by stirrup, as the import and export of operating personnel;
S06, installation form, after model sheetinstallat completes, hang out interior working platform, and then the horizontal lacing wire of colligation pier shaft or top cap reinforcing bar, complete steel bar template engineering;
S07, carry out pouring concrete, from lower to upper merogenesis cast bridge pier pier shaft.
7. bridge pier rapid constructing method according to claim 6, is characterized in that, described step S03 comprises:
S031, by loop wheel machine by the concrete surface of bottom floor units module hoisting to bridge pier place, and to be connected and fixed bottom the steel structure framework of bottom floor units module with concrete surface by expansion bolt;
S032, successively lift remaining unit module, be connected and fixed by latch or bolt between the steel structure framework of adjacent two layers unit module.
8. bridge pier rapid constructing method according to claim 6, is characterized in that, described step S06 comprises:
S061, installation form;
S062, dismantle connecting bolt between steel structure framework layer by layer, pack up movable skeleton;
S063, loop wheel machine is utilized successively to hang out unit module;
The horizontal lacing wire of S064, colligation pier shaft or top cap reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410668270.XA CN104404883B (en) | 2014-11-19 | 2014-11-19 | Workbench and construction method in a kind of bridge pier rapid construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410668270.XA CN104404883B (en) | 2014-11-19 | 2014-11-19 | Workbench and construction method in a kind of bridge pier rapid construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104404883A true CN104404883A (en) | 2015-03-11 |
| CN104404883B CN104404883B (en) | 2016-05-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410668270.XA Expired - Fee Related CN104404883B (en) | 2014-11-19 | 2014-11-19 | Workbench and construction method in a kind of bridge pier rapid construction |
Country Status (1)
| Country | Link |
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| CN (1) | CN104404883B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672137A (en) * | 2016-03-22 | 2016-06-15 | 中国水利水电第八工程局有限公司 | Bridge pier body reinforcement construction method and reinforcement frameworks |
| CN106988221A (en) * | 2017-03-15 | 2017-07-28 | 中铁上海工程局集团有限公司 | Unit construction bridge beam construction method based on BIM |
| CN108547227A (en) * | 2018-06-07 | 2018-09-18 | 宁波交通工程建设集团有限公司 | Modularization bridge pier inclosure structure and construction method |
| CN111472303A (en) * | 2018-12-07 | 2020-07-31 | 杭州江润科技有限公司 | Middle pier anti-collision system and construction method |
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| CN204298741U (en) * | 2014-11-19 | 2015-04-29 | 中交四航局第三工程有限公司 | Working platform in a kind of bridge pier rapid construction |
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| JP2008240410A (en) * | 2007-03-28 | 2008-10-09 | Kawasaki Heavy Ind Ltd | Bridge construction method, steel structure and bridge |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672137A (en) * | 2016-03-22 | 2016-06-15 | 中国水利水电第八工程局有限公司 | Bridge pier body reinforcement construction method and reinforcement frameworks |
| CN105672137B (en) * | 2016-03-22 | 2018-04-13 | 中国水利水电第八工程局有限公司 | A kind of construction method and framework of steel reinforcement of bridge pier pier shaft reinforcing bar |
| CN106988221A (en) * | 2017-03-15 | 2017-07-28 | 中铁上海工程局集团有限公司 | Unit construction bridge beam construction method based on BIM |
| CN108547227A (en) * | 2018-06-07 | 2018-09-18 | 宁波交通工程建设集团有限公司 | Modularization bridge pier inclosure structure and construction method |
| CN108547227B (en) * | 2018-06-07 | 2024-02-06 | 宁波交通工程建设集团有限公司 | Modular pier surrounding cage structure and construction method |
| CN111472303A (en) * | 2018-12-07 | 2020-07-31 | 杭州江润科技有限公司 | Middle pier anti-collision system and construction method |
| CN111472303B (en) * | 2018-12-07 | 2021-08-20 | 杭州江润科技有限公司 | Middle pier anti-collision system and construction method |
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| Publication number | Publication date |
|---|---|
| CN104404883B (en) | 2016-05-25 |
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Inventor after: Shovey Inventor after: Feng Guoyao Inventor after: Huang Xiaomiao Inventor after: Bi Lili Inventor after: Liao Shiqiang Inventor after: Mo Hongwu Inventor after: Wang Shenguang Inventor after: Chen Xin Inventor before: Shovey Inventor before: Ju Zhian Inventor before: Feng Guoyao Inventor before: Mo Hongwu Inventor before: Liao Shiqiang Inventor before: Bi Lili Inventor before: Huang Xiaomiao Inventor before: Wang Shenguang |
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