CN102493363B - Quick construction method for segment No.0 of continuous beam - Google Patents

Quick construction method for segment No.0 of continuous beam Download PDF

Info

Publication number
CN102493363B
CN102493363B CN201110411902.0A CN201110411902A CN102493363B CN 102493363 B CN102493363 B CN 102493363B CN 201110411902 A CN201110411902 A CN 201110411902A CN 102493363 B CN102493363 B CN 102493363B
Authority
CN
China
Prior art keywords
pier
construction
reinforcing bar
piece
assembled
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
Application number
CN201110411902.0A
Other languages
Chinese (zh)
Other versions
CN102493363A (en
Inventor
刘晓阳
秦顺全
李海宏
刘玉峰
耿克强
贾为民
何中华
刘绍游
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
No.1 Engineering Co., Ltd., Zhongtie Bridge Bureau Group
China Railway Major Bridge Engineering Group Co Ltd MBEC
Original Assignee
No1 Engineering Co Ltd Zhongtie Bridge Bureau Group
China Railway Major Bridge Engineering Co Ltd
China Railway Major Bridge Engineering Group Co Ltd MBEC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by No1 Engineering Co Ltd Zhongtie Bridge Bureau Group, China Railway Major Bridge Engineering Co Ltd, China Railway Major Bridge Engineering Group Co Ltd MBEC filed Critical No1 Engineering Co Ltd Zhongtie Bridge Bureau Group
Priority to CN201110411902.0A priority Critical patent/CN102493363B/en
Publication of CN102493363A publication Critical patent/CN102493363A/en
Application granted granted Critical
Publication of CN102493363B publication Critical patent/CN102493363B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a quick construction method for a segment No.0 of a continuous beam, which includes: A10, constructing an assembly foundation along a bridge beside a main pier, wherein the assembly foundation is used for assembling an integral lifting platform for reinforced forms of the segment No.0; A20, synchronously constructing the integral lifting platform for the reinforced forms of the segment No.0 during construction of the main pier, wherein the integral lifting platform for the reinforced forms of the segment No.0 is complete before the main pier is complete; A30, lifting the integral lifting platform for the reinforced forms of the segment No.0 to the top of the main pier, and performing girder concreting with the segment No.0 and performing tensioning and grouting for a bridge body. By the method, the integral lifting platform for the reinforced forms of the segment No.0 is assembled and the forms are mounted and tied with rebars when construction of the main pier cap and a pier body starts, no interference with construction of the body of the main pier exists, and accordingly, construction period can be shortened greatly.

Description

Quick construction method for segment No.0 of continuous beam
Technical field
The present invention relates to greatly, across footpath the continuous beam bridge construction method, to be specifically related to Quick construction method for segment No.0 of continuous beam.
Background technology
Across footpath continuous girder bridge, generally select cast-in-place cantilever method construction greatly, main minute four parts are carried out, be respectively No. 0 piece of pier back timber section, the symmetrical cantilever pouring part of Hanging Basket, end bay straightway and end bay and midspan closing section, wherein No. 0 piece construction is a very important stage in the construction of continuous beam cantilever casting method.
At present, conventional No.0 of continuous beam construction method is that piece support system is installed No. 0 after pier shaft is built, then assembled No. 0 piece reinforcing bar template on support system, finally concreting.As can be seen here, traditional construction method, the installation of No. 0 piece template, reinforcing bar, prestress pipe etc. must be undertaken by step after pier construction completes, and the duration is long, in the duration, can not meet construction needs anxiety in the situation that.
Summary of the invention
Technical problem to be solved by this invention is to solve long problem of No.0 of continuous beam construction period.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is to provide a kind of Quick construction method for segment No.0 of continuous beam, comprises the following steps:
A10, in the pier position of main pier other along bridge to the assembled basis of construction, described assembled basis is for assembled No. 0 piece reinforcing bar formwork integral hoisting platform;
A20, in the construction of main pier, No. 0 piece reinforcing bar formwork integral hoisting platform of construction of running simultaneously on described assembled basis, and No. 0 piece reinforcing bar formwork integral hoisting platform completes before main pier has been constructed;
A30, No. 0 piece reinforcing bar formwork integral hoisting platform of lifting be to main Dun Dunding, carries out that No. 0 piece main beam concrete is built and the stretch-draw mud jacking construction of beam body.
In said method, described No. 0 piece reinforcing bar formwork integral hoisting platform comprises by many transverse distribution beams and the tower structure that longitudinally distribution beam forms and be arranged on No. 0 piece soffit formwork and the left and right side template on described tower structure, and steps A 20 comprises the following steps:
A201, on the main pier bearing platform of main pier, construct pier shaft and No. 0 piece support system, described No. 0 piece support system is by being arranged on four steel pipe columns around of pier shaft and connecting system and attached arm forms, every steel pipe column utilizes respectively with attached arm and is connected with the built-in fitting on pier shaft, and by connection, is to connect between two steel pipe columns of direction across bridge setting;
A202, No. 0 piece of construction of running simultaneously on described assembled basis water the hoisting platform of injection molding, and soffit formwork, side template are installed on described hoisting platform, and carry out steel bar overall binding and prestress pipe installation;
Steps A 202 has been constructed early than steps A 201.
In said method, in steps A 30, No. 0 piece reinforcing bar formwork integral hoisting platform lifting utilizes two cranes hoisted in position in two steps, first rise and winch to top, pier top, when being positioned at girder design attitude overhead 20cm, the large arm of two cranes is locked, then on each steel pipe column, arrange and pull jack respectively, by pulling jack, No. 0 piece reinforcing bar formwork integral hoisting platform is carried out to adjustment in place, when and steel pipe column between correct position after, again No. 0 piece reinforcing bar formwork integral hoisting platform is fallen to putting in place and measure, and adjust absolute altitude, center line, qualified rear loose hook.
In said method, in steps A 10, in the pier position of main pier, other suitable bridge drains into few four assembled bases to construction two, and first, second voussoir of difference spot welding on the end face on each assembled basis, first, second voussoir along bridge to layout, the two adjacent assembled bases of row are upper, and near the first voussoir on the assembled basis of main pier, near main pier, the second voussoir is away from main pier; Away from the first voussoir on the assembled basis of main pier away from main pier, the second voussoir is near main pier, the height of the first voussoir is lower than the second voussoir, the gradient forming between the two end face is identical with the inclined bottom surface angle of No.0 of continuous beam, in steps A 20, the end face of first, second voussoir is connected with No. 0 piece reinforcing bar formwork integral hoisting platform full weld.
In said method, described assembled basis has six, and two adjacent row are for assembled No. 0 piece reinforcing bar formwork integral hoisting platform, and other row are as standby.
Beneficial effect of the present invention is:
(1), when construction main pier bearing platform, pier shaft, start assembled No. 0 piece reinforcing bar formwork integral hoisting platform, installation form and assembling reinforcement, do not conflict with main pier main body construction, be about to the time started of No. 0 piece construction in advance, shortened the construction period;
(2) " uprising empty is land ", " becoming loose pricks as whole ", have been realized, because the work such as the template of No.0 of continuous beam, reinforcing bar, prestressing force have completed on hoisting platform, after lifting puts in place, can very fast concreting, thus can compress to greatest extent the duration;
(3), falsework input amount is few, saved cost, improved economic benefit.
Accompanying drawing explanation
Fig. 1 is the job site arrangement diagram before No. 0 piece reinforcing bar formwork integral hoisting platform lifting in the present invention;
Fig. 2 is the direction across bridge view of the present invention in construction;
Fig. 3 is that the suitable bridge of the present invention in construction is to view;
Fig. 4 is the tower structure schematic diagram of No. 0 piece reinforcing bar formwork integral hoisting platform in the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.For convenience of description, in following examples, take along bridge is fore-and-aft direction to direction, take direction across bridge direction as left and right direction.
Quick construction method for segment No.0 of continuous beam provided by the invention, comprises the following steps:
A10, as shown in Figure 1, six assembled basic 21,22,23,24,25 and 26 of the pier position of main pier 4 side dressing works, arrange and put to being two along bridge in above-mentioned six assembled bases, and first, second voussoir 51,52 of difference spot welding on the end face on each assembled basis, first, second voussoir 51,52 along bridge to layout, the first voussoir 51 on assembled basic 21,22 and 25,26 near main pier 4, the second voussoirs 52 away from main pier 4; The first voussoir 51 on assembled basic 23,24 away from main pier 4, the second voussoirs 52 near the height of main pier 4, the first voussoirs 51 lower than the second voussoir 52, the gradient forming between the two end face is identical with the inclined bottom surface angle of No.0 of continuous beam.
Face mutually two row totally four assembled bases for assembled No. 0 piece reinforcing bar formwork integral hoisting platform, other one row totally two assembled bases as standby, for example, assembled basic 21,22,23,24 for assembled No. 0 piece reinforcing bar formwork integral hoisting platform, assembled basic 25,26 standby; Or assembled basic 23,24,25,26 for assembled No. 0 piece reinforcing bar formwork integral hoisting platform, assembled basic 21,22 standby.
A20, in the main pier 4 of construction, No. 0 piece reinforcing bar formwork integral hoisting platform of construction of running simultaneously on above-mentioned assembled basis, and No. 0 piece reinforcing bar formwork integral hoisting platform completes before main pier has been constructed.
As shown in Figure 4, No. 0 piece reinforcing bar formwork integral hoisting platform comprise the tower structure being formed by four transverse distribution beams 9 that are arranged in parallel and 6 longitudinal distribution beam 8 that are arranged in parallel and be arranged on No. 0 piece soffit formwork 13 on described tower structure and left and right side template 10(referring to Fig. 2, Fig. 3), transverse distribution beam 9 and longitudinally between distribution beam 8 respectively by many connecting rods 14 formation robust structure.
The detailed step of steps A 20 is as follows:
A201, at the main pier bearing platform 42 upper pier shafts 41 of main pier 4, while assembled No. 0 piece support system on main pier bearing platform 42, No. 0 piece support system by be arranged on four steel pipe columns 2 around of pier shaft 41 and connect be 11 and attached arm 6 form, every steel pipe column 2 utilizes respectively with attached arm 6 and is connected with the built-in fitting on pier shaft 41, and by connection, is 11 connections between two steel pipe columns 2 of direction across bridge setting.
A202, on assembled basis 21,22,23,24 run simultaneously construction No. 0 piece reinforcing bar formwork integral hoisting platform, first the tower structure many transverse distribution beams 9 and longitudinal distribution beam 8 being assemblied to form on first, second voussoir 51,52, first, second voussoir 51,52 is connected with transverse distribution beam 9 full welds, then in the arranged on left and right sides of tower structure, weld respectively first, second hoisting beam 15,16, between first, second hoisting beam 15,16, by hoisting beam, connecting is 17 connections;
Afterwards, soffit formwork 13 and left and right side template 10 are installed on tower structure, and carry out steel bar overall binding and prestress pipe installation.
Steps A 202 should have been constructed early than steps A 201.
A30, check that No. 0 piece reinforcing bar formwork integral hoisting platform is qualified after, with two hoister in large tonnage 3, lifted to No. 0 piece support system, because first, second voussoir 51,52 and assembled basis are that spot welding is connected, and be that full weld is connected with No. 0 piece reinforcing bar formwork integral hoisting platform, therefore, first, second voussoir 51,52 can be separated with assembled basis under the traction action of crane, with the rising that becomes one of No. 0 piece reinforcing bar formwork integral hoisting platform.
No. 0 piece reinforcing bar formwork integral hoisting platform lifting utilizes two cranes hoisted in position in two steps, first rise and winch to top, pier top, when being positioned at girder 7 design attitude overhead 20cm, the large arm of two cranes is locked, then on four steel pipe columns 2, arrange and pull jack respectively, by pulling jack, No. 0 piece reinforcing bar formwork integral hoisting platform is carried out to adjustment in place, when and steel pipe column 2 between correct position after, again No. 0 piece reinforcing bar formwork integral hoisting platform is fallen to putting in place and measure, and adjust absolute altitude, center line, qualified rear loose hook.
In whole hoisting process, to constantly note observing the support situation of No. 0 piece support system and loop wheel machine supporting leg, when especially second step lifts, require whole process maintenance level, and keep slowly synchronous, observe No. 0 spirit level reading on piece reinforcing bar formwork integral hoisting platform constantly and adjust in time its levelness.
Behind No. 0 piece reinforcing bar formwork integral hoisting platform accurate adjustment location, carry out the stretch-draw mud jacking construction of No. 0 piece girder 7 concretings and No. 0 piece beam body.
In said method, during assembled No. 0 piece support system, should control the verticality of steel pipe column 2 being reliably connected with the attached arm 6 of pier shaft well.
When No. 0 piece reinforcing bar formwork integral hoisting platform is assembled, should guarantee to measure unwrapping wire accurate, firm welding between the end face of first, second voussoir 51,52 and transverse distribution beam 9.
Certainly, the present invention is not limited to above-mentioned form, the construction of assembled basis, No. 0 piece support system and No. 0 piece reinforcing bar formwork integral hoisting platform can be adjusted according to Bridge Pier and Abutment Construction progress in good time, but must guarantee that No. 0 piece reinforcing bar formwork integral hoisting platform completes before main pier has been constructed, thereby compress to greatest extent the duration.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, within all falling into protection scope of the present invention.

Claims (3)

1. Quick construction method for segment No.0 of continuous beam, is characterized in that, comprises the following steps:
A10, in the pier position of main pier other along bridge to the assembled basis of construction, described assembled basis is for assembled No. 0 piece reinforcing bar formwork integral hoisting platform;
A20, in main pier construction, on described assembled basis, run simultaneously construction No. 0 piece reinforcing bar formwork integral hoisting platform, described No. 0 piece reinforcing bar formwork integral hoisting platform comprises by many transverse distribution beams and the tower structure that longitudinally distribution beam forms and be arranged on No. 0 piece soffit formwork and the left side on described tower structure, right side template, on the main pier bearing platform of main pier, construct pier shaft and No. 0 piece support system, described No. 0 piece support system is by being arranged on four steel pipe columns around of pier shaft and connecting system and attached arm forms, every steel pipe column utilizes respectively with attached arm and is connected with the built-in fitting on pier shaft, and by connection, be to connect between two steel pipe columns that direction across bridge arranges, No. 0 piece of construction of running simultaneously on described assembled basis waters the hoisting platform of injection molding, and soffit formwork, side template are installed on described hoisting platform, and carries out steel bar overall binding and prestress pipe installation, and No. 0 piece reinforcing bar formwork integral hoisting platform completes before main pier has been constructed,
A30, lift No. 0 piece reinforcing bar formwork integral hoisting platform to main Dun Dunding, carry out that No. 0 piece main beam concrete is built and the construction of the stretch-draw mud jacking of beam body, No. 0 piece reinforcing bar formwork integral hoisting platform lifting utilizes two cranes hoisted in position in two steps, first rise and winch to top, pier top, when being positioned at girder design attitude overhead 20cm, the large arm of two cranes is locked, then on each steel pipe column, arrange and pull jack respectively, by pulling jack, No. 0 piece reinforcing bar formwork integral hoisting platform is carried out to adjustment in place, when and steel pipe column between correct position after, again No. 0 piece reinforcing bar formwork integral hoisting platform is fallen to putting in place and measure, and adjust absolute altitude, center line, qualified rear loose hook.
2. Quick construction method for segment No.0 of continuous beam as claimed in claim 1, it is characterized in that, in steps A 10, in the pier position of main pier, other suitable bridge drains into few four assembled bases to construction two, and first, second voussoir of difference spot welding on the end face on each assembled basis, first, second voussoir is along bridge to layout, and the two adjacent assembled bases of row are upper, near the first voussoir on the assembled basis of main pier, near main pier, the second voussoir is away from main pier; Away from the first voussoir on the assembled basis of main pier away from main pier, the second voussoir is near main pier, the height of the first voussoir is lower than the second voussoir, the gradient forming between the two end face is identical with the inclined bottom surface angle of No.0 of continuous beam, in steps A 20, the end face of first, second voussoir is connected with No. 0 piece reinforcing bar formwork integral hoisting platform full weld.
3. Quick construction method for segment No.0 of continuous beam as claimed in claim 2, is characterized in that, described assembled basis has six, and two adjacent row are for assembled No. 0 piece reinforcing bar formwork integral hoisting platform, and other row are as standby.
CN201110411902.0A 2011-12-12 2011-12-12 Quick construction method for segment No.0 of continuous beam Active CN102493363B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110411902.0A CN102493363B (en) 2011-12-12 2011-12-12 Quick construction method for segment No.0 of continuous beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110411902.0A CN102493363B (en) 2011-12-12 2011-12-12 Quick construction method for segment No.0 of continuous beam

Publications (2)

Publication Number Publication Date
CN102493363A CN102493363A (en) 2012-06-13
CN102493363B true CN102493363B (en) 2014-04-16

Family

ID=46185219

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110411902.0A Active CN102493363B (en) 2011-12-12 2011-12-12 Quick construction method for segment No.0 of continuous beam

Country Status (1)

Country Link
CN (1) CN102493363B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103132463B (en) * 2013-03-12 2015-06-24 中国建筑第六工程局有限公司 Movable hanger operating platform and manufacturing, installing, using and removing methods thereof
CN104264592B (en) * 2014-10-14 2016-08-24 中国水利水电第四工程局有限公司 A kind of continuous beam construction method
CN110230259B (en) * 2018-08-21 2021-05-28 中铁十八局集团有限公司 Bridge cantilever casting pier top beam section and rapid construction method thereof
CN111042000A (en) * 2020-01-16 2020-04-21 中建七局安装工程有限公司 Temporary supporting method for continuous beam construction of support pier

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004218316A (en) * 2003-01-16 2004-08-05 Ps Mitsubishi Construction Co Ltd Construction method for capital part and installing work vehicle
JP2007132077A (en) * 2005-11-10 2007-05-31 Yokogawa Bridge Corp Construction method of rigid-frame bridge with angle brace member, and rigid-frame bridge with angle brace member
CN201169750Y (en) * 2008-03-28 2008-12-24 中铁十三局集团有限公司 Moving platform for bridging
CN101586330A (en) * 2008-05-22 2009-11-25 中铁十一局集团第一工程有限公司 Receding construction method of cradle of continuous girder bridge made of prestressing concrete
JP2009299418A (en) * 2008-06-17 2009-12-24 Kajima Corp Retreating and removing method and retreating device for travelling work vehicle for cantilever construction
CN201567533U (en) * 2009-09-28 2010-09-01 中交二公局第六工程有限公司 Assembly and disassembly-type bracket for cast-in-place of continuous beam
CN102051859A (en) * 2010-12-14 2011-05-11 中铁大桥局集团第二工程有限公司 Synchronous and fast construction method and device for cantilever-cast continuous girder No.0 block and lower structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004218316A (en) * 2003-01-16 2004-08-05 Ps Mitsubishi Construction Co Ltd Construction method for capital part and installing work vehicle
JP2007132077A (en) * 2005-11-10 2007-05-31 Yokogawa Bridge Corp Construction method of rigid-frame bridge with angle brace member, and rigid-frame bridge with angle brace member
CN201169750Y (en) * 2008-03-28 2008-12-24 中铁十三局集团有限公司 Moving platform for bridging
CN101586330A (en) * 2008-05-22 2009-11-25 中铁十一局集团第一工程有限公司 Receding construction method of cradle of continuous girder bridge made of prestressing concrete
JP2009299418A (en) * 2008-06-17 2009-12-24 Kajima Corp Retreating and removing method and retreating device for travelling work vehicle for cantilever construction
CN201567533U (en) * 2009-09-28 2010-09-01 中交二公局第六工程有限公司 Assembly and disassembly-type bracket for cast-in-place of continuous beam
CN102051859A (en) * 2010-12-14 2011-05-11 中铁大桥局集团第二工程有限公司 Synchronous and fast construction method and device for cantilever-cast continuous girder No.0 block and lower structure

Also Published As

Publication number Publication date
CN102493363A (en) 2012-06-13

Similar Documents

Publication Publication Date Title
CN102747677B (en) Bridge and construction method thereof
CN110042769B (en) Auxiliary span full-cantilever assembling construction method for composite beam cable-stayed bridge
CN100441779C (en) Space-precasting translation-emplacing method for bridge construction
CN104264592B (en) A kind of continuous beam construction method
CN106677070B (en) A kind of high-altitude long-span heavy duty construction of beam bracket and construction method
CN104631333B (en) Arch bridge needle beam, stringer and floorings cast-in-place construction travelling bridge and method
CN105421248B (en) Large-Span Continuous girder span building up station turns and closure construction method
CN105648926B (en) Large-Span Continuous girder span building up station rotation swivel construction method
CN101824800B (en) Method for construction of bridge cast-in-situ pre-stressed concrete continuous beam
CN102493363B (en) Quick construction method for segment No.0 of continuous beam
CN105672134A (en) Through concrete-filled steel tube tied-arch bridge erection construction method
CN106522112A (en) Cable-stayed bridge side span beam section erecting system and method thereof
CN103821359A (en) Large-cross-section concrete beam layered casting construction method
CN106087746A (en) A kind of cast-in-situ box girder falsework construction method and bridge
CN104314013B (en) Two Cantilever Construction Methods of a kind of pole asymmetrical array beam
CN101781878A (en) Integral lifting template of main pylon of single-pylon cable-stayed bridge without dorsal cables and lifting construction method thereof
CN102134832B (en) Movable support and movable support assisted method for erecting steel box beams through non-variable amplitude frame beam crane
CN105019357B (en) The installation method of abnormity prefabricated bridge on a kind of arch bridge uncovered lattice girder steel
CN102605717A (en) Pier-top longitudinal support scaffolding method
CN207244425U (en) Part earth anchored suspension bridge
CN107090772B (en) A kind of construction method of the especially big cast-in-place boom support of cable-stayed bridge end bay
CN106320192B (en) A kind of beam section replacing and reinforcing method for large span concrete continuous beam bridge
CN107806019A (en) Large-span suspension bridge gate Sarasota construction method
CN106522101A (en) Construction method of superlong cable beam-free sections of cable-stayed bridge
CN204551267U (en) Arch bridge needle beam, stringer and bridge deck cast-in-place construction travelling bridge

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
ASS Succession or assignment of patent right

Owner name: GROUP CO., LTD., ZHONGTIE DAQIAO BUREAU

Free format text: FORMER OWNER: CHINA ZHONGTIE MAJOR BRIDGE ENGINEERING CO., LTD.

Effective date: 20150217

Owner name: NO.1 ENGINEERING CO., LTD., ZHONGTIE BRIDGE BUREAU

Free format text: FORMER OWNER: NO.1 ENGINEERING CO., LTD., ZHONGTIE BRIDGE BUREAU GROUP GROUP CO., LTD., ZHONGTIE DAQIAO BUREAU

Effective date: 20150217

TR01 Transfer of patent right

Effective date of registration: 20150217

Address after: 430050 Hanyang Road, Hanyang District, Hubei, No. 38, No.

Patentee after: Group Co., Ltd., Zhongtie Daqiao Bureau

Patentee after: No.1 Engineering Co., Ltd., Zhongtie Bridge Bureau Group

Address before: 430074 Hubei province Wuhan Dongxin East Lake New Technology Development Zone Road SBI Venture Street No. 6 Building 12 layer

Patentee before: China Zhongtie Major Bridge Engineering Co., Ltd.

Patentee before: No.1 Engineering Co., Ltd., Zhongtie Bridge Bureau Group

Patentee before: Group Co., Ltd., Zhongtie Daqiao Bureau

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 430074 WUHAN, HUBEI PROVINCE TO: 430050 WUHAN, HUBEI PROVINCE