CN101736684B - Non-standard simple supporting girder and manufacturing and mounting technology thereof - Google Patents
Non-standard simple supporting girder and manufacturing and mounting technology thereof Download PDFInfo
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- CN101736684B CN101736684B CN2008102267149A CN200810226714A CN101736684B CN 101736684 B CN101736684 B CN 101736684B CN 2008102267149 A CN2008102267149 A CN 2008102267149A CN 200810226714 A CN200810226714 A CN 200810226714A CN 101736684 B CN101736684 B CN 101736684B
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Abstract
The invention relates to simple supporting girder span type of girder engineering, in particular to non-standard simple supporting girder of long bridge used for adjusting pier position and changing girder length as well as non-standard simple supporting girder manufacturing and mounting technology utilizing place, tool, equipment and technology of the standard girder. The invention is characterized in that: the shape and section of the non-standard simple supporting girder are the same as the shape and section of the standard girder, the length is between the length of the most common standard girder and the length of the next level standard girder; the inner steel bar and prestressing tendon are the same as the distribution manner of the standard girder, only the middle length is reduced according to the fact; the most common standard girder pedestal is adopted to perform the pedestal of the non-standard simple supporting girder; the external mould and terminal mould of the most common standard girder are adopted, the combination of the external mould and terminal mould is changed into 'the terminal is wrapped by the side' from 'the side is wrapped by the terminal'; the inner mould of the next level length is adopted, the middle part is completed by wood mould; the non-standard simple supporting girder is subject to double layer girder saving on the most common standard girder; and the existing bridge girder erection machine used for erecting the standard girder is added with a connecting plate which is connected with the front support leg of the bridge girder erection machine and can move under the main girder, and the front support leg of the bridge girder erection machine is mounted on the connecting plate to erect the non-standard simple supporting girder.
Description
Technical field
The present invention relates to the simply supported beam span type of bridge engineering, particularly long bridge is used to adjust the nonstandard simply supported beam of pier position, change bridge length and utilizes place, frock, equipment, the technology system of standard beam, pacifies nonstandard simply supported beam technology.
Background technology
All there is the simply supported beam standard drawing of series of standards length value in railway, highway field, utilize the combination of different length standard simply supported beam to adjust the position of bridge pier, satisfy field condition requirement is laid in the pier position.When striding design, generally select 32.6 meters standard beams earlier for use in special line for passenger trains bridge hole; But long bridge is striden place in the hole of crossing over some special constructions, as in the front and rear gaps position of the continuous beam in leap road, river course, stride the standard beam that need also select some 24.6 meters and other length for use for accent.Only adopt prior standard beam cloth to stride during to the long bridge of tens kilometers of length even up to a hundred kilometers, design; When prioritization scheme such as need adjust a certain hole span length's degree; Because of hole bridging lock effect, need the position of all other bridge piers of adjustment full-bridge, workload will be very huge.Behind commencement of works because of the requirement of local government; Some emphasis structure hole of striding existing road is striden needs change; And near some bridge piers possibly accomplished construction and maybe can't change the pier position, and therefore in specific section, adjusting length with the combination of prior standard length simply supported beam can't meet the demands.For solving the above-mentioned hole span length's degree adjustment problem that causes because of change, design at present adopts the special accent of two-way abutment to stride works.
Between grand bridge 484# to the 487# pier of Zheng Xi special line for passenger trains Yanshi because of the prioritization scheme hole stride be adjusted into (48+80+48) rice continuous beam cross over 320 national highways; And one (48+80+48) rice circle, V-type pier continuous girder span Lip river speedway arranged between 704# to 707# pier; Because of between 487# pier and 704# pier, meeting the demands, therefore be provided with one 6.53 meters long two-way abutment at the 591# pier with full-length beam combination adjustment length.Two-way abutment height generally is less than 10 meters, is not suitable for high pier section; Bulky, engineering cost is higher; Be provided with, influence attractive in appearance at long bridge middle part.
Summary of the invention
The objective of the invention is to overcome two-way abutment and transfer whole deficiencies of striding, provide a kind of works to replace two-way abutment, make and transfer that to stride change simple; And the constructure scheme of this works economical rationality is provided.For realizing above-mentioned purpose; The technical scheme that the present invention adopts is: design that a kind of profile and section are identical with the standard beam, the random length beam of length between the standard beam of most common standard beam and next stage length; And, make non-standard simply supported beam can directly utilize frock, equipment, technology, the technology of most common standard beam through technological transformation.
No matter stride scheme in the optimization hole of design stage, or the change of the position, hole of construction stage, adopt " nonstandard simply supported beam " to carry out the hole easily and stride adjustment." nonstandard simply supported beam " do not receive height restriction, and two-way abutment transfers the scheme of striding, the setting of high pier section to become very difficult.Grand bridge former design in Zheng Xi special line for passenger trains Yanshi totally 3 is crossed over 320 national highways at 125#-128# pier, 283#-286# pier, 484#-487# Dun Chu respectively.Because of local government's requirement, change straight original 320 national highways in the work progress, grand bridge only surplus 484#-487# Dun1Chu in Yanshi crosses over 320 national highways.With the intrinsic 125#128# pier of Yanshi grand bridge, 283#-286# pier totally 2 places cross over 320 national highways (48+80+48) rice continuous beam change to (the 3-32.6 rice standard beam+2-24.6 standard beam+nonstandard beam of 1-29.88 rice) combination, can practice thrift up to ten million construction funds.Special line for passenger trains " nonstandard simply supported beam " adopts and utilizes original frock, equipment system peace, and every hole cost is merely about 800,000 yuan, and adopts on-the-spot support to build " nonstandard simply supported beam ", and support height is in 10, and cost needs 150 yuan approximately." nonstandard simply supported beam " outward appearance is identical with the standard beam, compares overall appearance with two-way abutment." nonstandard simply supported beam " utilizes original frock, equipment system peace " nonstandard simply supported beam " remarkable in economical benefits.
Description of drawings
Fig. 1 is the two-way abutment figure of Zheng Xi railway Yanshi grand bridge 591#, and Zheng Xi visitor specially executes and recruits ZQ4 mark (bridge)-19-II, and two-way abutment and nonstandard simply supported beam transfer the scheme of striding to contrast;
Fig. 2 is the 32.6 meters beam figure of standard through rule institute of the Ministry of Railways.
The specific embodiment
1, nonstandard beam length: special line for passenger trains most common standard beam is 32.6 meters standard beams, and the standard beam of next stage length i.e. 24.6 meters standard beams, and " nonstandard beam " length is between 32.6 meters to 24.6 meters.
2, " nonstandard beam " structure: the standard paragraphs cross dimensions of nonstandard beam, beam-ends thick section cross dimensions, beam-ends structure and standard beam are identical, only change the length of span centre standard paragraphs; The prestressing tendon layout of nonstandard beam, reinforcement placement are identical with 32.6 meters standard beams, only shorten through the steel strand of span centre standard paragraphs, the length of reinforcing bar; The prestressing tendon stretching force of nonstandard beam is compared with 32.6 meters standard beams and is reduced tonnage.
3, the beam field of nonstandard beam is prefabricated: 32.6 meters standard beams of nonstandard beam prefabricated employing pedestal, and camber curve is provided with 32.6 meters standard beams at the bottom of the beam; The external mold of nonstandard beam adopts 32.6 meters standard beam external molds, Zhi Lifang case constant.The relation of end mould and external mold changes to " outsourcing end " by " the end bag is outer ", holds in the mould retraction external mold with the adjustment beam length; The internal mold of nonstandard beam adopts the internal mold of 24.6 meters standard beams, and the span centre insufficient section adopts wooden model to supply; Mould is gone in reinforcing bar colligation on placenta, integral hoisting, and technology is identical with the standard beam; Concrete adopts the mixing station system of mixing, be pumped into mould, form vibrator and vibrating head vibrates, steam curing, and technology is identical with the standard beam; The whole stretch-draw of prestressing force, hole path pressure grouting are carried out depositing Liang Taishang, and technology is identical with the standard beam; Nonstandard beam length is between between 24.6 meters and the 32.6 meters standard beams, so the Liang Taidou that deposits of beam field standard beam is not suitable for.Adopt bilayer to deposit the Liang Chang of beam, need reconfigure and deposit Liang Tai; But adopt bilayer to deposit the Liang Chang of beam scheme, nonstandard beam can directly exist above 32.6 meters standard beams.
4, the transportation of nonstandard beam: the transportation of nonstandard beam can be adopted existing 900 tons of case beam Beam transportation vehicles.
5, nonstandard beam sets up; At present 900 tons of special bridge formation machines of railway visitor all are according to setting up 24.6 meters, 32.6 meters two kinds of standard beams designs, and girder and rear leg relative position immobilize; Girder can be installed front support leg from 37.2 meters of rear leg a plate being arranged.37.2 meters of front and back leg spacings are used to set up 32.6 meters standard beams; Girder can be installed front support leg from 29.2 meters of rear leg a plate being arranged.29.2 meters of front and back leg spacings are used to set up 24.6 meters standard beams; Improve existing 900 tons of bridge formation machines, increasing a junction plate that can be connected with front support leg, that also can under girder, move under the girder of bridge formation machine.When setting up 24.6 to 32.6 meters long nonstandard simply supported beams, front and back leg spacing is between 29.2 to 37.2 meters.
Can adjust all size as required in the application,, should belong within protection scope of the present invention therefore in the variation and the modification that do not break away under the general plotting of the present invention.
Claims (4)
1. non-standard simply supported beam is characterized in that: said non-standard simply supported beam profile and section is identical with the standard beam, length is between the standard beam of most common standard beam and next stage length; Inner steel bar, prestressing tendon are identical with most common standard beam arrangement, and only length is reduced factually at the middle part.
2. the manufacturing approach of a non-standard simply supported beam comprises beam pedestal, external mold and end mould, it is characterized in that: said prefabricated this nonstandard simply supported beam pedestal adopts most common standard beam pedestal; External mold, end mould utilize external mold, the end mould of the most frequently used standard beam, and external mold changes " side Bao Duan " with the combination of end mould into by " end bag side "; Internal mold adopts the internal mold of next stage length, and the middle part is not enough adopts the wooden model completion.
3. the manufacturing approach of non-standard simply supported beam according to claim 2, it is characterized in that: said non-standard simply supported beam can carry out bilayer and deposit beam on the most common standard beam.
4. the manufacturing approach of non-standard simply supported beam according to claim 2; It is characterized in that: said under the existing crane ' s major girder that is used to set up the standard beam, set up the removable junction plate that is connected with the machine front support leg of bridge formation, bridge formation machine front support leg is installed in order to set up nonstandard simply supported beam under this junction plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102267149A CN101736684B (en) | 2008-11-24 | 2008-11-24 | Non-standard simple supporting girder and manufacturing and mounting technology thereof |
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| CN2008102267149A CN101736684B (en) | 2008-11-24 | 2008-11-24 | Non-standard simple supporting girder and manufacturing and mounting technology thereof |
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| Publication Number | Publication Date |
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| CN101736684A CN101736684A (en) | 2010-06-16 |
| CN101736684B true CN101736684B (en) | 2012-07-18 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102493345B (en) * | 2011-11-29 | 2014-03-26 | 广州瀚阳工程咨询有限公司 | Manufacture method for prefabricating support-free system bridge sections |
| CN103147397B (en) * | 2013-02-04 | 2015-05-27 | 秦皇岛天业通联重工股份有限公司 | Diagonal bracing mechanism of front support leg of bridge girder erection machine and mounting method of diagonal bracing mechanism |
Citations (5)
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| CN2438776Y (en) * | 2000-06-19 | 2001-07-11 | 赵玉章 | Double-clip adjustable early dismounting top strut |
| KR20060112874A (en) * | 2005-04-28 | 2006-11-02 | 주식회사 인터컨스텍 | Segment joint method of segmented prestressed concrete girder |
| CN1918342A (en) * | 2004-01-05 | 2007-02-21 | 三现P.F株式会社 | Method of applying prestress and connecting means used therein and prestressed concrete beam therefrom |
| CN101139812A (en) * | 2007-10-19 | 2008-03-12 | 清华大学 | Bottom Chord Open Truss Type Corrugated Steel Web Composite Beam |
| CN101275384A (en) * | 2008-04-28 | 2008-10-01 | 张国志 | Hollow type beam and bridge main body employing the same |
-
2008
- 2008-11-24 CN CN2008102267149A patent/CN101736684B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2438776Y (en) * | 2000-06-19 | 2001-07-11 | 赵玉章 | Double-clip adjustable early dismounting top strut |
| CN1918342A (en) * | 2004-01-05 | 2007-02-21 | 三现P.F株式会社 | Method of applying prestress and connecting means used therein and prestressed concrete beam therefrom |
| KR20060112874A (en) * | 2005-04-28 | 2006-11-02 | 주식회사 인터컨스텍 | Segment joint method of segmented prestressed concrete girder |
| CN101139812A (en) * | 2007-10-19 | 2008-03-12 | 清华大学 | Bottom Chord Open Truss Type Corrugated Steel Web Composite Beam |
| CN101275384A (en) * | 2008-04-28 | 2008-10-01 | 张国志 | Hollow type beam and bridge main body employing the same |
Non-Patent Citations (3)
| Title |
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| JP特开2006-322312A 2006.11.30 |
| 刘建红.轨道交通高架桥标准梁设计.《铁道标准设计》.2003,(第6期),1-4. * |
| 张晓林.国内轨道交通高架桥标准梁设计的回顾和探讨.《都市快轨交通》.2004,(第6期),49-51. * |
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Owner name: NO. 1 ENGINEERING CO., LTD. OF CHINA RAILWAY 16TH Effective date: 20111226 |
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Effective date of registration: 20111226 Address after: 100018 Beijing city Chaoyang District No. 2 North Pine dam Park Applicant after: China Railway Construction Engineering Bureau No.16 Group Corp., Ltd. Co-applicant after: The First Engineering Co., Ltd. Of China Railway 16th Construction Bureau Group Address before: 100018 Beijing city Chaoyang District No. 2 North Pine dam Park Applicant before: China Railway Construction Engineering Bureau No.16 Group Corp., Ltd. |
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