CN103132460A - Concrete filled steel tubular temporary consolidation system of cast-in-cantilever beam - Google Patents
Concrete filled steel tubular temporary consolidation system of cast-in-cantilever beam Download PDFInfo
- Publication number
- CN103132460A CN103132460A CN2011103836844A CN201110383684A CN103132460A CN 103132460 A CN103132460 A CN 103132460A CN 2011103836844 A CN2011103836844 A CN 2011103836844A CN 201110383684 A CN201110383684 A CN 201110383684A CN 103132460 A CN103132460 A CN 103132460A
- Authority
- CN
- China
- Prior art keywords
- steel
- concrete
- steel pipe
- consolidation system
- cast
- 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.)
- Pending
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a concrete filled steel tubular temporary consolidation system of a cast-in-cantilever beam. The concrete filled steel tubular temporary consolidation system of the cast-in-cantilever beam comprises a support steel tube, H-shaped steel, concrete and a finish rolling deformed steel bar, wherein the support steel tube is connected with the pre-embedded finish rolling deformed steel bar through a flange, the concrete is poured into the support steel tube, one end of the H-shaped steel penetrates through the support steel tube and is welded with a pier stub pier top embedded part and serves as a wall sustaining measure and a box beam initial segment cast-in-situ support, and the support steel tube and the box beam are stretched and connected into a consolidation system through the finish rolling deformed steel bar. The concrete filled steel tubular temporary consolidation system of the cast-in-cantilever beam is a temporary consolidation system which is used for symmetrically pouring of a continuous box beam cantilever and bearing unbalanced moment in a construction process, is especially suitable for such adverse conditions as large box beam span, heavy hanging basket and other temporary load, difficult control of deformation and large unbalanced bending moment.
Description
Technical field
The present invention relates to the temporary consolidation system that a kind of pier for the symmetrical cantilever construction of bridge superstructure continuous box girder Hanging Basket pushes up section.
Background technology
Cast-in-place cantilever method is in bridge pier both sides, working platform to be set, and evenly piecemeal to span centre cantilever pouring cement concrete beam body, and applies piecemeal prestressed job practices.Capital equipment is a pair of walking Hanging Basket, and Hanging Basket is linked to be on whole beam section at stretch-draw anchor and with pier shaft and moves, and assembling reinforcement, formwork erection, concreting, executes prestressing force and all carries out thereon.After completing this section construction, each moves a sections to the Hanging Basket symmetry forward, carries out lower a pair of beam section construction, moves ahead in proper order, completes until cantilever beam section is built.
Chong Qi passage (Shanghai section) V mark planning embankment section 90+150+90m continuous beam is the Hanging Basket cantilever pouring continuous box girder of District of Shanghai largest span, adopt the Hanging Basket cantilever construction, cantilever construction can be because the impact of various execution conditions and construction operating mode produces certain unbalanced load in work progress, in order to offset this out-of-balance force, need a kind of temporary locking technique that vertical bridge arranges to both sides below the 0# section to solve above problem.
Summary of the invention
The present invention be to solve that existing cantilever casting box girder is large across the footpath, Hanging Basket and other temporary load(ing) is heavy, distortion is wayward, unbalanced moment is large, and provide a cantilever pouring joist steel pipe concrete temporary consolidation system, this technique makes steel pipe and initial segment case beam and cushion cap anchoring respectively by fining twisted steel, the out-of-balance force that produces in each segmental construction process of T structure cantilever passes to cushion cap by steel concrete column and fining twisted steel thus, finally reaches the state of balance.
To achieve these goals, the technical scheme that the present invention takes: a kind of cantilever pouring joist steel pipe concrete temporary consolidation system, comprise supporting steel pipe, H shaped steel, concrete, fining twisted steel, be characterized in: be connected with flange between supporting steel pipe and the pre-buried fining twisted steel of cushion cap, concrete perfusion in supporting steel pipe, H shaped steel one end pass supporting steel pipe and the top built-in fitting welding of pier stud pier, as sustaining wall measure and case beam initial segment cast-in-place support; Connect into fixed system with fining twisted steel stretch-draw between supporting steel pipe and case beam.
The external diameter of supporting steel pipe is Φ 1200mm; Concrete grade is C30; The fining twisted steel diameter is φ 32 mm; H shaped steel is H588 shaped steel.
Beneficial effect of the present invention is:
1) simple structure.The out-of-balance force that T structure cantilever produces in each segmental construction process passes to cushion cap to reach balance by steel concrete column and fining twisted steel, and is stressed clear and definite.
2) use safety.Adopt jack to carry out stretch-draw after fining twisted steel connects, initial tensioning force is controlled at 25t; Adopt respectively bridging to be connected with sustaining wall spare between steel pipe and steel pipe and pier stud, guaranteed the safety of cantilever pouring.
Description of drawings
Fig. 1 is initial segment temporary consolidation structural front view of the present invention;
Fig. 2 is the left view of Fig. 1.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1 and Figure 2, cantilever pouring joist steel pipe concrete temporary consolidation of the present invention system comprises supporting steel pipe 1, H shaped steel 2, concrete 6, fining twisted steel 7 etc.
Be connected with flange between supporting steel pipe 1 and the pre-buried fining twisted steel 5 of cushion cap, the interior concrete perfusion 6 of supporting steel pipe 1, H shaped steel 2 pass supporting steel pipe 1, one end and top built-in fitting 3 welding of pier stud pier, as sustaining wall measure and case beam initial segment cast-in-place support; Connect into fixed system with fining twisted steel 7 stretch-draw between supporting steel pipe 1 and case beam.
The external diameter of supporting steel pipe 1 is Φ 1200mm; Concrete 6 labels are C30; Fining twisted steel 7 diameters are φ 32 mm; H shaped steel 2 is H588 shaped steel.
Work progress of the present invention:
1) the pier stud construction is complete, and the vertical bridge of pier stud is respectively installed four Φ, 1200 steel pipe supports 1 on the cushion cap of both sides, and steel pipe support 1 adopts 25 tons of cranes to lift, steel pipe bottom flange and pre-buried fining twisted steel 5 anchor connections of cushion cap.Adopt sustaining wall spare 4 to be connected between steel pipe and pier stud, establish built-in fitting 3 on pier stud.
2) Φ 1200 supporting steel pipes 1 install, and according to the longeron position carrying out perforate on supporting steel pipe 1, H588 shaped steel 2 are passed supporting steel pipe 1, one end and top built-in fitting 3 welding of pier stud pier.
3) after H588 shaped steel 2 is installed and is fixed, at the interior perfusion of supporting steel pipe 1 C30 concrete 6.The high case beam base plate face that is controlled at of supporting steel pipe 1 inner concrete top mark is put down.
4) after the construction of cast-in-situ box girder initial (0#) section is completed, install on every steel pipe of 40 φ 32 fining twisted steel 7(and arrange ten), adopt jack to carry out stretch-draw at the case top surface of the beam after installing, stretching force is controlled at 25t.
The shoulder pole girder of hanging of the present invention should be noted the following aspects in construction:
1) 40 φ 32 fining twisted steels 7 should be controlled alignment error, and φ 32 fining twisted steels 7 must be strained, and nut must screw with the long handle spanner, just can guarantee each root fining twisted steel uniform stressed.Stretch-draw jack must be demarcated, and makes φ 32 fining twisted steel 7 uniform stressed 25t.
Must guarantee that the verticality of steel pipe satisfies code requirement when 2) lifting, the gap between flange in the bottom plate and cushion cap adopts the M50 grouting material to tamp.
3) after the semi girder closure, can take the static crushing method, immediately constraint relief.
Embodiment: Chong Qi passage (Shanghai section) V mark 90+150+90m continuous beam adopts Hanging Basket method cantilever pouring technique, and the 0# section adopts the balance of temporary consolidation System Assurance cantilever T structure, satisfies the construction stage structural safety stable.
Claims (2)
1. cantilever pouring joist steel pipe concrete temporary consolidation system, comprise supporting steel pipe (1), H shaped steel (2), concrete (6), fining twisted steel (7) is characterized in that: be connected the interior concrete perfusion of supporting steel pipe (1) (6) between supporting steel pipe (1) and the pre-buried fining twisted steel of cushion cap (5) with flange, H shaped steel (2) one ends pass supporting steel pipe (1) and pier stud pier top built-in fitting (3) welding, as sustaining wall measure and case beam initial segment cast-in-place support; Connect into fixed system with fining twisted steel (7) stretch-draw between supporting steel pipe (1) and case beam.
2. continuous beam cantilever according to claim 1 is built the temporary consolidation system, and it is characterized in that: the external diameter of described supporting steel pipe (1) is Φ 1200mm; Concrete (6) label is C30; Fining twisted steel (7) diameter is φ 32 mm; H shaped steel (2) is H588 shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103836844A CN103132460A (en) | 2011-11-28 | 2011-11-28 | Concrete filled steel tubular temporary consolidation system of cast-in-cantilever beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103836844A CN103132460A (en) | 2011-11-28 | 2011-11-28 | Concrete filled steel tubular temporary consolidation system of cast-in-cantilever beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103132460A true CN103132460A (en) | 2013-06-05 |
Family
ID=48492869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103836844A Pending CN103132460A (en) | 2011-11-28 | 2011-11-28 | Concrete filled steel tubular temporary consolidation system of cast-in-cantilever beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103132460A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726445A (en) * | 2013-12-05 | 2014-04-16 | 中交一公局第三工程有限公司 | Tower beam consolidation cable-stayed bridge 0# block support cast-in-place and movable suspended scaffolding suspension pouring combined construction method |
| CN106120568A (en) * | 2016-08-18 | 2016-11-16 | 德州市公路工程总公司 | Cross a river Main Bridge bridge pier secondary locking temporary consolidation structure and construction method |
| CN106400702A (en) * | 2016-11-28 | 2017-02-15 | 中交路桥华南工程有限公司 | Auxiliary pier 0# block beam temporary anchoring structure for preventing overturning of continuous beam |
| CN107524096A (en) * | 2017-10-13 | 2017-12-29 | 中铁八局集团第工程有限公司 | A kind of continuous girders by suspension grouting 0# blocks cast-in-place support and erection method |
| CN109098094A (en) * | 2018-10-16 | 2018-12-28 | 河南省交通规划设计研究院股份有限公司 | Construction method without bracket horizontal splicing corrugated steel web plate combined box girder |
| CN109610346A (en) * | 2018-12-18 | 2019-04-12 | 腾达建设集团股份有限公司 | A kind of cantilever beam method of adjustment |
| CN114382018A (en) * | 2022-01-20 | 2022-04-22 | 浙江交工集团股份有限公司 | Cast-in-place box girder 0# block and construction method thereof |
| CN114687298A (en) * | 2022-03-31 | 2022-07-01 | 中交路桥华南工程有限公司 | Ultrahigh vertical temporary anchoring structure and construction method thereof |
| CN114941284A (en) * | 2022-03-04 | 2022-08-26 | 中建八局天津建设工程有限公司 | Permanent-temporary combined tower crane foundation and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201187039Y (en) * | 2008-04-25 | 2009-01-28 | 中交第二航务工程局有限公司 | Self-balance loading temporary anchoring device between main beam and platform |
| 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 |
| CN101608433A (en) * | 2009-07-07 | 2009-12-23 | 中铁大桥勘测设计院有限公司 | The stayed-cable construction method of long-span concrete beam bridge |
| CN102168407A (en) * | 2011-03-23 | 2011-08-31 | 中交三航局第三工程有限公司 | Method for preventing and controlling cracks of long and big-segment bracket cantilever box girder structure |
-
2011
- 2011-11-28 CN CN2011103836844A patent/CN103132460A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201187039Y (en) * | 2008-04-25 | 2009-01-28 | 中交第二航务工程局有限公司 | Self-balance loading temporary anchoring device between main beam and platform |
| 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 |
| CN101608433A (en) * | 2009-07-07 | 2009-12-23 | 中铁大桥勘测设计院有限公司 | The stayed-cable construction method of long-span concrete beam bridge |
| CN102168407A (en) * | 2011-03-23 | 2011-08-31 | 中交三航局第三工程有限公司 | Method for preventing and controlling cracks of long and big-segment bracket cantilever box girder structure |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726445A (en) * | 2013-12-05 | 2014-04-16 | 中交一公局第三工程有限公司 | Tower beam consolidation cable-stayed bridge 0# block support cast-in-place and movable suspended scaffolding suspension pouring combined construction method |
| CN103726445B (en) * | 2013-12-05 | 2015-09-09 | 中交一公局第三工程有限公司 | The construction method that a kind of cable-stayed bridge with tower beam consolidation 0# block support cast-in-place combines with Hanging Basket cantilever |
| CN106120568A (en) * | 2016-08-18 | 2016-11-16 | 德州市公路工程总公司 | Cross a river Main Bridge bridge pier secondary locking temporary consolidation structure and construction method |
| CN106120568B (en) * | 2016-08-18 | 2017-09-26 | 德州市公路工程总公司 | The construction method of cross a river Main Bridge bridge pier secondary locking temporary consolidation structure |
| CN106400702A (en) * | 2016-11-28 | 2017-02-15 | 中交路桥华南工程有限公司 | Auxiliary pier 0# block beam temporary anchoring structure for preventing overturning of continuous beam |
| CN107524096A (en) * | 2017-10-13 | 2017-12-29 | 中铁八局集团第工程有限公司 | A kind of continuous girders by suspension grouting 0# blocks cast-in-place support and erection method |
| CN109098094A (en) * | 2018-10-16 | 2018-12-28 | 河南省交通规划设计研究院股份有限公司 | Construction method without bracket horizontal splicing corrugated steel web plate combined box girder |
| CN109610346A (en) * | 2018-12-18 | 2019-04-12 | 腾达建设集团股份有限公司 | A kind of cantilever beam method of adjustment |
| CN114382018A (en) * | 2022-01-20 | 2022-04-22 | 浙江交工集团股份有限公司 | Cast-in-place box girder 0# block and construction method thereof |
| CN114941284A (en) * | 2022-03-04 | 2022-08-26 | 中建八局天津建设工程有限公司 | Permanent-temporary combined tower crane foundation and construction method thereof |
| CN114687298A (en) * | 2022-03-31 | 2022-07-01 | 中交路桥华南工程有限公司 | Ultrahigh vertical temporary anchoring structure and construction method thereof |
| CN114687298B (en) * | 2022-03-31 | 2023-10-20 | 中交路桥华南工程有限公司 | Super-high vertical temporary anchoring structure and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103132460A (en) | Concrete filled steel tubular temporary consolidation system of cast-in-cantilever beam | |
| CN105672134A (en) | Through concrete-filled steel tube tied-arch bridge erection construction method | |
| CN109778721A (en) | Synchronization of jacking up bridge top and the bottom structure carries out the method that bridge increases transformation | |
| CN102808383B (en) | Curved bridge counter-slope jacking construction process | |
| CN104452597B (en) | Pier prestressed cap beam with extra length Construction Supporting System in water | |
| CN103924525B (en) | Urban interchange industrialization short-term precast assembly construction method | |
| CN105507168A (en) | Multi-span box girder integral ultrahigh alternate jacking construction system and method | |
| CN105714692A (en) | Cast-in-cantilever beam concrete filled steel tube temporary concretion system | |
| CN107806019A (en) | Large-span suspension bridge gate Sarasota construction method | |
| CN102605717A (en) | Pier-top longitudinal support scaffolding method | |
| CN112554077A (en) | Steel pipe concrete assembled truss composite beam construction system and construction method | |
| CN103233426A (en) | Bailey beam support free of buttress in soft foundation and supporting method thereof | |
| CN112554059A (en) | Viaduct ground-crossing parallel bridge pier full combined support and construction method thereof | |
| CN104963295A (en) | Support frame for non-ground internal-force balanced cast-in-place beam and construction method thereof | |
| CN106894345A (en) | Continuous beam end bay closing device and method | |
| CN211646028U (en) | Temporary anchoring structure for long-span cantilever beam | |
| CN104452598A (en) | Construction method for water pier super-long pre-stressed cap beam construction supporting system | |
| CN213233105U (en) | Small-span concrete cast-in-place box girder support system | |
| CN211368335U (en) | Bridge small box girder transverse connection device | |
| CN202247706U (en) | Hanging bracket | |
| CN112854004A (en) | Fish-bellied box girder column type support construction method | |
| CN216405153U (en) | Attached type cast-in-place concrete overline bridge column type support dismantling device | |
| CN206667071U (en) | Continuous beam end bay closing device | |
| CN204343168U (en) | Pier prestressed cap beam with extra length Construction Supporting System in water | |
| CN115162165B (en) | Construction method for closing middle tower column of highway-railway dual-purpose river-crossing A-type cable-stayed bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |