CN103556578B - Casting mold system for straight line section and side span closure section of continuous beam and building method thereof - Google Patents
Casting mold system for straight line section and side span closure section of continuous beam and building method thereof Download PDFInfo
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- CN103556578B CN103556578B CN201310478131.6A CN201310478131A CN103556578B CN 103556578 B CN103556578 B CN 103556578B CN 201310478131 A CN201310478131 A CN 201310478131A CN 103556578 B CN103556578 B CN 103556578B
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- hanging basket
- pier
- end bay
- vertical sliding
- platform
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- 238000000034 method Methods 0.000 title claims description 10
- 238000005266 casting Methods 0.000 title claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052742 iron Inorganic materials 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 abstract description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 7
- 230000005484 gravity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
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Abstract
The invention discloses a pouring die system for a straight line section and a side span closure section of a continuous beam and a construction method thereof, and solves the problems of large steel consumption and long construction period in the construction of the straight line section and the side span closure section of the high-pier continuous beam in the prior art. The device comprises an embedded iron plate (2) and a pier top cross beam (3) which are embedded in the pier top of a side span pier body (1), wherein a pair of herringbone longitudinal sliding beam supports (4) are welded on the pier top cross beam, a hanging basket (8) is arranged on a reciprocal first cantilever block section (7), a platform longitudinal beam (11) is arranged between a front lower cross beam (9) of the hanging basket and the pier top cross beam, a longitudinal sliding beam hanging strip (10) of the hanging basket is connected with the middle part of a longitudinal sliding beam (14) of the hanging basket, the outer end of the longitudinal sliding beam of the hanging basket is connected with the top end of the herringbone longitudinal sliding beam supports (4), and an outer mold truss (15) is arranged between the top ends of the two herringbone longitudinal sliding beam supports. The construction cost is reduced, and the construction period of the straight section and the side span closure section of the continuous beam is shortened.
Description
Technical field
What the present invention relates to that a kind of cantilevered builds continuous beam builds mold system and building method thereof, particularly a kind of high pier shaft cantilevered build the straightway of continuous beam and end bay closure segment build mold system and this builds the building method of mold system.
Background technology
Existing high pier shaft cantilevered is built building of the end bay closure segment of continuous beam and is just carried out after straightway has been built, straightway build mold system and end bay closure segment to build building of mold system be ground near abutment pier is first carried out after ground strengthens processing, set up steel bracket again, get out the pre-briquetting meeting preloading weight demands simultaneously, and pre-briquetting is lifted into steel bracket top carries out precompressed, and in pre-compaction process, observe the deflection of ground and steel bracket, until deflection lays down pre-briquetting after stablizing again, the last template setting up straightway and end bay closure segment at the top of steel bracket.This existing building method of building mold system there is foundation treatment material and support rolled steel dosage is many, and lifting workload is large, length consuming time, uses prepressing materials many, the problem that construction costs height and work high above the ground have a big risk.
Summary of the invention
What the invention provides a kind of continuous beam straightway and end bay closure segment builds mold system and building method thereof, solve prior art when constructing continuous beam with high-pier straightway and end bay closure segment, end bay support foundation treatment material and the support rolled steel dosage of existence are many, lifting workload is large, the problem that construction costs is high and security risk is large.
The present invention solves above technical problem by the following technical programs:
A kind of continuous beam straightway and end bay closure segment build mold system, comprise end bay pier shaft, across pier shaft in nearest apart from end bay pier shaft, the cantilever block section second from the bottom of therefrom building to end bay pier shaft direction across pier shaft and the cantilever block section last of therefrom building to end bay pier shaft direction across pier shaft, pre-buried iron plate is embedded with at the Dun Ding of end bay pier shaft, pre-buried iron plate is welded with pier head piece, pier head piece is welded with a pair lambdoid vertical sliding boom support, cantilever block section last is provided with Hanging Basket, platform longeron is erected with between lower transverse beam and pier head piece before Hanging Basket, platform longeron is provided with platform beams, platform beams is placed with platform panel, the middle part that the vertical sliding beam suspender belt of Hanging Basket and Hanging Basket indulge sliding beam links together, the outer end that Hanging Basket indulges sliding beam is connected with the top of lambdoid vertical sliding boom support, external mold truss is provided with between the top of two lambdoid vertical sliding boom supports, external mold truss is fixedly installed external mold, be provided with in the bottom of external mold truss laterally pull bar.
The merging section of building has been built in the casting space that external mold and platform panel form.
A building method of building mold system for continuous beam straightway and end bay closure segment, comprises the following steps:
The first step, on the pier top of end bay pier shaft pre-buried 4 pieces of pre-buried iron plates, 2 pieces of pre-buried iron plates on front side of abutment pier top are welded and fixed pier head piece, 2 pieces of pre-buried iron plates of abutment pier top rear are welded and fixed another pier head piece;
Second step, the cantilever block section second from the bottom that Hanging Basket is therefrom built to end bay pier shaft direction across pier shaft to be moved on in cantilever block section last, make Hanging Basket meet normal cantilever pouring condition, and the absolute altitude adjusting the front lower transverse beam of Hanging Basket is to calculating absolute altitude;
3rd step, platform longeron placed successively to be fixed on before pier head piece and Hanging Basket on lower transverse beam;
4th step, on platform longeron placement platform crossbeam successively;
5th step, on platform beams, lay flat upper surface plate;
6th step, lifted respectively and be welded to the both sides of pier head piece by two lambdoid vertical sliding boom supports, the vertical sliding beam of the direction movable hanging basket subsequently to end bay pier shaft, the outer end of Hanging Basket being indulged sliding beam links together with the top of vertical sliding boom support;
7th step, the middle part of the vertical sliding beam suspender belt of Hanging Basket and Hanging Basket being indulged sliding beam link together, and adjust Hanging Basket and indulge the absolute altitude of sliding beam to calculating absolute altitude;
8th step, on the vertical sliding beam of 2 Hanging Baskets, place external mold truss, with the both sides laterally external mold truss being fastened on by pull bar to platform beams;
9th step, on external mold truss, external mold is installed.
The present invention takes full advantage of the Gravity support structure that end bay Dun Ding and Hanging Basket are built as cantilever pouring continuous beam straightway and end bay closure segment, instead of and set up the Gravity support structure of end bay cast-in-place support as its concrete work on the ground, save lot of materials and preloading and prepressing materials, reduce construction costs, shorten the construction period of cantilever pouring continuous beam straightway and end bay closure segment, reduce the risk of upper air installing operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that A-A in Fig. 1 is to sectional view.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
A kind of continuous beam straightway and end bay closure segment build mold system, comprise end bay pier shaft 1, across pier shaft 5 in nearest apart from end bay pier shaft, the cantilever block section 6 second from the bottom of therefrom building to end bay pier shaft 1 direction across pier shaft 5 and the cantilever block section 7 last of therefrom building to end bay pier shaft 1 direction across pier shaft 5, pre-buried iron plate 2 is embedded with at the Dun Ding of end bay pier shaft 1, pre-buried iron plate 2 is welded with pier head piece 3, pier head piece 3 is welded with a pair lambdoid vertical sliding boom support 4, cantilever block section 7 last is provided with Hanging Basket 8, platform longeron 11 is erected with between lower transverse beam 9 and pier head piece 3 before Hanging Basket 8, platform longeron 11 is provided with platform beams 12, platform beams 12 is placed with platform panel 13, the middle part that the vertical sliding beam suspender belt 10 of Hanging Basket 8 and Hanging Basket indulge sliding beam 14 links together, the outer end that Hanging Basket indulges sliding beam 14 is connected with the top of lambdoid vertical sliding boom support 4, external mold truss 15 is provided with between the top of two lambdoid vertical sliding boom supports 4, external mold truss 15 is fixedly installed external mold 16, be provided with in the bottom of external mold truss 15 laterally pull bar 18.
In the casting space that external mold 16 and platform panel 13 forms, built the merging section of building 17, the merging section of building 17 is that the straightway of cantilever pouring continuous beam and the concrete of end bay closure segment merge and build engineering.
A building method of building mold system for continuous beam straightway and end bay closure segment, comprises the following steps:
The first step, on the pier top of end bay pier shaft 1 pre-buried 4 pieces of pre-buried iron plates 2,2 pieces on front side of abutment pier top pre-buried iron plates 2 are welded and fixed pier head piece 3,2 pieces of pre-buried iron plates 2 of abutment pier top rear are welded and fixed another pier head piece;
Second step, the cantilever block section 6 second from the bottom that Hanging Basket 8 is therefrom built to end bay pier shaft 1 direction across pier shaft 5 to be moved on in cantilever block section 7 last, make Hanging Basket 8 meet normal cantilever pouring condition, and the absolute altitude adjusting the front lower transverse beam 9 of Hanging Basket 8 is to calculating absolute altitude;
3rd step, platform longeron 11 placed successively to be fixed on before pier head piece 3 and Hanging Basket on lower transverse beam 9;
4th step, on platform longeron 11 placement platform crossbeam 12 successively;
5th step, on platform beams 12, lay flat upper surface plate 13;
6th step, lifted respectively and be welded to the both sides of pier head piece 3 by two lambdoid vertical sliding boom supports 4, the vertical sliding beam 14 of the direction movable hanging basket subsequently to end bay pier shaft 1, the outer end of Hanging Basket being indulged sliding beam 14 links together with the top of vertical sliding boom support 4;
7th step, the middle part of the vertical sliding beam suspender belt 10 of Hanging Basket 8 and Hanging Basket being indulged sliding beam 14 link together, and adjust Hanging Basket and indulge the absolute altitude of sliding beam 14 to calculating absolute altitude;
8th step, on the vertical sliding beam 14 of 2 Hanging Baskets, place external mold truss 15, with the both sides laterally external mold truss being fastened on by pull bar 18 to platform beams 12;
9th step, on external mold truss 15, external mold 16 is installed.
The Dun Ding that present invention utilizes existing Hanging Basket and end bay pier shaft on the nearest cantilever block of end bay pier shaft, as the Gravity support structure of the concrete work of cantilever pouring continuous beam straightway and end bay closure segment, builds support platform and the cast outer mold structure of its concrete work.Relative to traditional construction technology, the present invention saves duration and material and piling prepressing material greatly, reduces construction costs, shortens the engineering time of cantilever pouring continuous beam, reduce the risk of upper air installing operation.
Claims (2)
1. a continuous beam straightway and end bay closure segment build mold system, comprise end bay pier shaft (1), across pier shaft (5) in nearest apart from end bay pier shaft, the cantilever block section (6) second from the bottom therefrom built to end bay pier shaft (1) direction across pier shaft (5) and the cantilever block section (7) last therefrom built to end bay pier shaft (1) direction across pier shaft (5), it is characterized in that, pre-buried iron plate (2) is embedded with at the Dun Ding of end bay pier shaft (1), pre-buried iron plate (2) is welded with pier head piece (3), pier head piece (3) is welded with a pair lambdoid vertical sliding boom support (4), cantilever block section (7) last is provided with Hanging Basket (8), platform longeron (11) is erected with between the front lower transverse beam (9) and pier head piece (3) of Hanging Basket (8), platform longeron (11) is provided with platform beams (12), platform beams (12) is placed with platform panel (13), the vertical sliding beam suspender belt (10) of Hanging Basket (8) links together with the middle part of the vertical sliding beam (14) of Hanging Basket, the outer end of the vertical sliding beam (14) of Hanging Basket is connected with the top of lambdoid vertical sliding boom support (4), external mold truss (15) is provided with between the top of two lambdoid vertical sliding boom supports (4), external mold truss (15) is fixedly installed external mold (16), be provided with in the bottom of external mold truss (15) laterally pull bar (18).
2. a kind of continuous beam straightway according to claim 1 and end bay closure segment build mold system, it is characterized in that, in the casting space that external mold (16) and platform panel (13) form, built the merging section of building (17), the straightway that the merging section of building (17) is cantilever pouring continuous beam and the concrete of end bay closure segment merge builds engineering.
3. a building method of building mold system for continuous beam straightway and end bay closure segment, comprises the following steps:
The first step, on the pier top of end bay pier shaft (1) pre-buried 4 pieces of pre-buried iron plates (2), 2 pieces of pre-buried iron plates (2) on front side of abutment pier top are welded and fixed pier head piece (3), 2 pieces of pre-buried iron plates (2) of abutment pier top rear are welded and fixed another pier head piece;
Second step, Hanging Basket (8) to be moved on to cantilever block section (7) last from cantilever block section (6) second from the bottom, make Hanging Basket (8) meet normal cantilever pouring condition, and the absolute altitude adjusting Hanging Basket (8) front lower transverse beam (9) is to calculating absolute altitude;
3rd step, platform longeron (11) placed successively be fixed on the front lower transverse beam (9) of pier head piece (3) and Hanging Basket;
4th step, on platform longeron (11) placement platform crossbeam (12) successively;
5th step, laying flat upper surface plate (13) on platform beams (12);
6th step, two lambdoid vertical sliding boom supports (4) are lifted respectively and are welded to the both sides of pier head piece (3), the vertical sliding beam (14) of direction movable hanging basket subsequently to end bay pier shaft (1), links together the top of the outer end of vertical for Hanging Basket sliding beam (14) with vertical sliding boom support (4);
7th step, the middle part of vertical to the vertical sliding beam suspender belt (10) of Hanging Basket (8) and Hanging Basket sliding beam (14) to be linked together, and the absolute altitude adjusting the vertical sliding beam (14) of Hanging Basket is to calculating absolute altitude;
8th step, place external mold truss (15), with the both sides laterally external mold truss being fastened on by pull bar (18) to platform beams (12) the vertical sliding beam (14) of 2 Hanging Baskets is upper;
9th step, on external mold truss (15), external mold (16) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310478131.6A CN103556578B (en) | 2013-10-14 | 2013-10-14 | Casting mold system for straight line section and side span closure section of continuous beam and building method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310478131.6A CN103556578B (en) | 2013-10-14 | 2013-10-14 | Casting mold system for straight line section and side span closure section of continuous beam and building method thereof |
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| Publication Number | Publication Date |
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| CN103556578A CN103556578A (en) | 2014-02-05 |
| CN103556578B true CN103556578B (en) | 2015-05-13 |
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| 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 |
| CN104790302B (en) * | 2015-05-08 | 2016-09-07 | 中南林业科技大学 | A kind of high pier continuous rigid frame bridge end bay straightway Hanging Basket coordinates bent cap support integral construction method |
| CN105839540B (en) * | 2016-04-29 | 2023-06-13 | 贵州大通路桥工程建设有限公司 | Setting method and composition structure of No. 0 section non-welding bracket of rigid frame bridge |
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| CN106894345A (en) * | 2017-04-17 | 2017-06-27 | 五冶集团上海有限公司 | Continuous beam end bay closing device and method |
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| CN115434254A (en) * | 2022-10-20 | 2022-12-06 | 成都华川公路建设集团有限公司 | Construction method of corrugated steel web continuous rigid frame bridge |
| CN117166376B (en) * | 2023-11-02 | 2024-02-20 | 中铁十六局集团路桥工程有限公司 | Lightweight construction method for side span cast-in-situ frame body of high mountain gorge Gu Ou continuous beam |
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