CN105714692A - Cast-in-cantilever beam concrete filled steel tube temporary concretion system - Google Patents
Cast-in-cantilever beam concrete filled steel tube temporary concretion system Download PDFInfo
- Publication number
- CN105714692A CN105714692A CN201610114743.0A CN201610114743A CN105714692A CN 105714692 A CN105714692 A CN 105714692A CN 201610114743 A CN201610114743 A CN 201610114743A CN 105714692 A CN105714692 A CN 105714692A
- Authority
- CN
- China
- Prior art keywords
- steel
- steel pipe
- concrete filled
- concrete column
- bridge
- 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
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
- E01D21/10—Cantilevered erection
- E01D21/105—Balanced cantilevered erection
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a cast-in-cantilever beam concrete filled steel tube temporary concretion system, comprising a bearing platform, steel tube prestressed box girders, a pier, a base, concrete filled steel tubular columns and jacks, wherein the pier and the concrete filled steel tubular columns are all arranged at the top end of the bearing platform, the concrete filled steel tubular columns are located at two sides of the pier, the bottom ends of the concrete filled steel tubular columns are fixed to the top end of the bearing platform by column foot stiffening plates, rod piece profile steel is arranged between the top end of the pier and each concrete filled steel tubular column, I-steel in the longitudinal direction of a bridge is arranged at the top end of each concrete filled steel tubular column, a square timber template is mounted at the top end of each concrete filled steel tubular column by a hollow steel tube, multiple pieces of I-steel in the transverse direction of the bridge are connected between each I-steel in the longitudinal direction of the bridge and the corresponding square timber template, the steel tube prestressed box girders are mounted at two sides of the top ends of the square timber templates, and the jacks are mounted at the top ends of the steel tube prestressed box girders by profile steel. The cast-in-cantilever beam concrete filled steel tube temporary concretion system is simple in structure, reaches a balanced state by transmitting force to the bearing platform through the concrete filled steel tubular columns and deformed steel bars subjected to precision rolling, and is clear in stress and high in safety.
Description
Technical field
The present invention relates to bridge technology field, specifically a kind of for the temporary consolidation system in the construction of bridge superstructure continuous box girder symmetry cantilever pouring.
Background technology
Continuous beam is in adopting segmentation cantilever pouring process, and permanent bearing can not bear the unbalanced moments produced in construction, needs to take anchoring temporarily measure in construction, to provide the various unbalanced moments produced in vertical supporting, opposing construction, it is ensured that " T " structure balances.Such as, 50+5 × 80+50m continuous beam of No. 2 bridges in Na Chao river, Tangshan, Chao He abysmal area is received owing to crossing over, Continuous beam design adopts Hanging Basket Cantilever Casting Construction method, continuous beam maximum span cantilever pouring is to No. 9 sections, maximum cantilever length 41.5m, can produce certain unbalanced load in cantilever construction process, thus causing the danger that in Hanging Basket free cantilever casting process, T structure topples.
Summary of the invention
It is an object of the invention to provide a kind of cantilever pouring joist steel pipe concrete temporary consolidation system, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of cantilever pouring joist steel pipe concrete temporary consolidation system, including cushion cap, steel pipe prestress box beam, bridge pier, bearing, steel core concrete column and jack, the lower end of described cushion cap is provided with multiple pile foundation, described bridge pier is arranged in the middle of the top of cushion cap, described bearing is arranged in the middle of the top of bridge pier, described steel core concrete column is arranged on the both sides, top of cushion cap, and steel core concrete column is symmetricly set on the top of cushion cap about bridge pier, the bottom of steel core concrete column is fixed on the top of cushion cap by suspension column stiffener, the company's of being provided with pier rod member shaped steel between top and the steel core concrete column of described bridge pier, the top of described steel core concrete column is provided with vertical bridge to I-steel, the top of described steel core concrete column is provided with lumps of wood template by hollow steel pipe, described vertical bridge is to being connected to many parallel direction across bridge I-steel between I-steel with lumps of wood template, described steel pipe prestress box beam is symmetrically installed on both sides, lumps of wood template top, described jack is arranged on the top of shaped steel, shaped steel is arranged on the top of steel pipe prestress box beam by high-strength nut.
As the further scheme of the present invention: the inner transverse of described hollow steel pipe, longitudinally each filling three road steel stiffeners, two block plates are all welded in hollow steel pipe top and bottom.
As the present invention further scheme: the arranged outside of described steel core concrete column has two finish rolling deformed bars, the lower end of finish rolling deformed bar is embedded into inside cushion cap, the finish rolling deformed bar upper end in outside connects jack through the limit web of steel pipe prestress box beam, and the upper end of the finish rolling deformed bar of inner side is directly through steel pipe prestress box beam.
Compared with prior art, the invention has the beneficial effects as follows:
1, simple structure, T structure cantilever produced out-of-balance force in each segmental construction process passes to cushion cap to reach balance by steel core concrete column and fining twisted steel, and stress is clear and definite.
2, using safety, fining twisted steel adopts jack to carry out stretch-draw after connecting, and it is 500KN that stretching force controls power；It is respectively adopted bridging between steel core concrete column and between pier stud and wall-connecting piece connects, it is ensured that the safety of cantilever pouring.
Accompanying drawing explanation
Fig. 1 is cantilever casting box girder temporary consolidation of the present invention construction side elevation schematic diagram.
Fig. 2 is cantilever casting box girder temporary consolidation of the present invention construction floor map.
In figure: 1-cushion cap；11-steel pipe prestress box beam；12-bridge pier；13-bearing；14-pile foundation；2-steel core concrete column；21-suspension column stiffener；22-hollow steel pipe；23-connects pier rod member shaped steel；24-steel-pipe pile；The vertical bridge of 3-is to I-steel；31-direction across bridge I-steel；32-lumps of wood template；4-jack；41-high-strength nut；42-shaped steel；5-finish rolling deformed bar.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Refer to Fig. 1～2, in the embodiment of the present invention, a kind of cantilever pouring joist steel pipe concrete temporary consolidation system, including cushion cap 1, steel pipe prestress box beam 11, bridge pier 12, bearing 13, steel core concrete column 2 and jack 4, the lower end of cushion cap 1 is provided with multiple pile foundation 14, bridge pier 12 is arranged in the middle of the top of cushion cap 1, bearing 13 is arranged in the middle of the top of bridge pier 12, steel core concrete column 2 is arranged on the both sides, top of cushion cap 1, and steel core concrete column 2 is symmetricly set on the top of cushion cap 1 about bridge pier 12, the bottom of steel core concrete column 2 is fixed on the top of cushion cap 1 by suspension column stiffener 21, the company's of being provided with pier rod member shaped steel 23 between top and the steel core concrete column 2 of bridge pier 12, cast-in-place support as sustaining wall measure and steel pipe prestress box beam 11 initial segment；The top of steel core concrete column 2 is provided with vertical bridge to I-steel 3, the top of steel core concrete column 2 is provided with lumps of wood template 32 by hollow steel pipe 22 high for 10cm, the inner transverse of hollow steel pipe 22, longitudinally each filling three road steel stiffeners, two block plates are all welded in hollow steel pipe 22 top and bottom, vertical bridge is to being connected to many parallel direction across bridge I-steel 31 between I-steel 3 with lumps of wood template 32, steel pipe prestress box beam 11 is symmetrically installed on both sides, lumps of wood template 32 top, jack 4 is arranged on the top of shaped steel 42, shaped steel 42 is arranged on the top of steel pipe prestress box beam 11 by high-strength nut 41.
The arranged outside of steel core concrete column 2 has two finish rolling deformed bars 5, and it is internal that the lower end of finish rolling deformed bar 5 is embedded into cushion cap 1, and when No. 0 block box girder construction, finish rolling deformed bar 5 upper end in outside connects jack 4 through the limit web of steel pipe prestress box beam 11；After the design load that No. 0 block concrete reaches intensity, the upper end of the finish rolling deformed bar 5 of inner side, directly through steel pipe prestress box beam 11, carries out stretch-draw anchor to complete the temporary consolidation of box beam.
This bridge box beam temporary consolidation scheme adopts rigid structure.By associated construction specification and be typically designed requirement, and do not make the too early stress of permanent bearing, in cantilever process, be considered as permanent bearing and do not stress, undertake cantilever load and uneven overturning moment by temporary consolidation structure.
Temporary consolidation structure is removed along with the closure step of box beam, adopts this temporary consolidation form of construction work, it is ensured that the balance of cantilever T structure, meets construction stage structural safety stable.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when without departing substantially from the spirit of the present invention or basic feature, it is possible to realize the present invention in other specific forms.Therefore, no matter from which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the invention rather than described above limits, it is intended that all changes in the implication of the equivalency dropping on claim and scope included in the present invention.Any accompanying drawing labelling in claim should be considered as the claim that restriction is involved.
Claims (3)
1. a cantilever pouring joist steel pipe concrete temporary consolidation system, including cushion cap, steel pipe prestress box beam, bridge pier, bearing, steel core concrete column and jack, it is characterized in that, the lower end of described cushion cap is provided with multiple pile foundation, described bridge pier is arranged in the middle of the top of cushion cap, described bearing is arranged in the middle of the top of bridge pier, described steel core concrete column is arranged on the both sides, top of cushion cap, and steel core concrete column is symmetricly set on the top of cushion cap about bridge pier, the bottom of steel core concrete column is fixed on the top of cushion cap by suspension column stiffener, the company's of being provided with pier rod member shaped steel between top and the steel core concrete column of described bridge pier, the top of described steel core concrete column is provided with vertical bridge to I-steel, the top of described steel core concrete column is provided with lumps of wood template by hollow steel pipe, described vertical bridge is to being connected to many parallel direction across bridge I-steel between I-steel with lumps of wood template, described steel pipe prestress box beam is symmetrically installed on both sides, lumps of wood template top, described jack is arranged on the top of shaped steel, shaped steel is arranged on the top of steel pipe prestress box beam by high-strength nut.
2. cantilever pouring joist steel pipe concrete temporary consolidation system according to claim 1, it is characterised in that the inner transverse of described hollow steel pipe, longitudinally each filling three road steel stiffeners, two block plates are all welded in hollow steel pipe top and bottom.
3. cantilever pouring joist steel pipe concrete temporary consolidation system according to claim 1, it is characterized in that, the arranged outside of described steel core concrete column has two finish rolling deformed bars, the lower end of finish rolling deformed bar is embedded into inside cushion cap, the finish rolling deformed bar upper end in outside connects jack through the limit web of steel pipe prestress box beam, and the upper end of the finish rolling deformed bar of inner side is directly through steel pipe prestress box beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610114743.0A CN105714692A (en) | 2016-03-02 | 2016-03-02 | Cast-in-cantilever beam concrete filled steel tube temporary concretion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610114743.0A CN105714692A (en) | 2016-03-02 | 2016-03-02 | Cast-in-cantilever beam concrete filled steel tube temporary concretion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105714692A true CN105714692A (en) | 2016-06-29 |
Family
ID=56157150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610114743.0A Pending CN105714692A (en) | 2016-03-02 | 2016-03-02 | Cast-in-cantilever beam concrete filled steel tube temporary concretion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105714692A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107893379A (en) * | 2017-11-03 | 2018-04-10 | 中国水利水电第七工程局有限公司 | A kind of concrete continuous Cantilever Construction load equilibrium adjusting means and adjusting method |
| 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 |
| 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 |
| CN111809505A (en) * | 2020-06-19 | 2020-10-23 | 中铁大桥局上海工程有限公司 | Anchor pulling component and eccentric beam |
| CN112411386A (en) * | 2020-11-26 | 2021-02-26 | 中铁三局集团有限公司 | Method for erecting and dismantling continuous beam No. 0 block reinforced concrete-filled steel tube support |
-
2016
- 2016-03-02 CN CN201610114743.0A patent/CN105714692A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 刘先涛: "连续箱梁体外临时固结技术", 《桥梁工程》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107893379A (en) * | 2017-11-03 | 2018-04-10 | 中国水利水电第七工程局有限公司 | A kind of concrete continuous Cantilever Construction load equilibrium adjusting means and adjusting method |
| 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 |
| 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 |
| CN111809505A (en) * | 2020-06-19 | 2020-10-23 | 中铁大桥局上海工程有限公司 | Anchor pulling component and eccentric beam |
| CN112411386A (en) * | 2020-11-26 | 2021-02-26 | 中铁三局集团有限公司 | Method for erecting and dismantling continuous beam No. 0 block reinforced concrete-filled steel tube support |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105714692A (en) | Cast-in-cantilever beam concrete filled steel tube temporary concretion system | |
| CN105568866B (en) | Across the large-span steel box beam push construction method of existing road | |
| CN105568853B (en) | Wide-span reinforced concrete flitch-trussed beam side position is traversing, the construction method of the beam that falls | |
| CN109778721A (en) | Synchronization of jacking up bridge top and the bottom structure carries out the method that bridge increases transformation | |
| CN211815489U (en) | Super large span flying swallow type concrete filled steel tube arch bridge with self-anchoring suspension cable system | |
| CN104452597B (en) | Pier prestressed cap beam with extra length Construction Supporting System in water | |
| CN103669224A (en) | Method and steel pipe support for construction of arch tower of inclined arch tower double-cable-plane prestressed concrete cable-stayed bridge | |
| CN103352429A (en) | Bracket counter pull loading pre-pressing device and tensioning pre-pressing method thereof | |
| CN105178200A (en) | Construction method of cable-stayed combined support for construction of first segment of suspended-pouring arch bridge | |
| CN106522112A (en) | Cable-stayed bridge side span beam section erecting system and method thereof | |
| CN103132460A (en) | Concrete filled steel tubular temporary consolidation system of cast-in-cantilever beam | |
| CN105544398A (en) | Horizontal force self-balancing type splayed heavy type upper air support system and installation method thereof | |
| CN103866696A (en) | Cast-in-situ support of long-cantilever zero segment of short-pylon cable-stayed bridge | |
| CN103774560B (en) | The curved bridge construction engineering method of suspension type cast-in-situ template | |
| CN104532749A (en) | Support used for construction of upper beam of main tower of suspension bridge | |
| CN102605717A (en) | Pier-top longitudinal support scaffolding method | |
| CN105568870A (en) | Triangle hanging basket suspended casting device used for overpass bridge construction and construction method thereof | |
| CN103362074B (en) | Bridge cantilever box girder construction hanging basket pre-pressing loading device | |
| CN103966947A (en) | Beam-falling-resistant device based on bridge beam shock absorption | |
| CN103233426A (en) | Bailey beam support free of buttress in soft foundation and supporting method thereof | |
| CN205242278U (en) | A triangle string basket method is hanged and is watered device for deck bridge construction | |
| CN104963295A (en) | Support frame for non-ground internal-force balanced cast-in-place beam and construction method thereof | |
| CN203795315U (en) | High pier cable-stayed bridge No.0 block non-bracket construction structure | |
| CN104562944B (en) | Long span steel-concrete composite beam cable-stayed bridge limit steel case anchoring temporarily system | |
| CN103835238A (en) | High-pier cable-stayed bridge zero-number block non-bracket construction method and structure in construction process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160629 |
|
| RJ01 | Rejection of invention patent application after publication |