CN103243652B - A kind of large-span non-floor type cast-in-place beam falsework and construction method thereof - Google Patents
A kind of large-span non-floor type cast-in-place beam falsework and construction method thereof Download PDFInfo
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- CN103243652B CN103243652B CN201310163620.2A CN201310163620A CN103243652B CN 103243652 B CN103243652 B CN 103243652B CN 201310163620 A CN201310163620 A CN 201310163620A CN 103243652 B CN103243652 B CN 103243652B
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Abstract
The invention discloses a kind of large-span non-floor type cast-in-place beam falsework and construction method thereof, it is characterized in that being symmetrical arranged two side stands on the both sides cushion cap for supporting Cast-in-situ Beam and pier shaft, is arrange cushion cap pre-embedded steel slab at the top of concrete bearing platform by stone bolt; The sidepiece differing heights position of concrete pier shaft arranges each pier shaft pre-embedded steel slab respectively by stone bolt; Cushion cap pre-embedded steel slab props up vertical steel pipe post and bracket bearing diagonal respectively; Pier shaft column joint steel pipe on differing heights position is set between each pier shaft pre-embedded steel slab and steel pipe post respectively; Bracket horizontal support is set between steel pipe post and bracket bearing diagonal; Arrange unloading sand cylinder top cap respectively at the top of steel pipe post and bracket bearing diagonal, unloading sand cylinder top cap arranges Two bors d's oeuveres i iron, and Bailey beam is arranged on Two bors d's oeuveres i iron.The present invention is used for, in cast-in-situ continuous beam and continuous steel frame construction, can not carrying out basement process, reducing the security risk in construction cost and construction.
Description
Technical field
The present invention relates to the technical field of cast-in-place falsework construction in bridge engineering, be specifically related to a kind of cast-in-place falsework and construction method thereof.
Background technology
Along with the development of domestic highway, railway, the beam type such as large span, large width bridge cast-in-situ continuous beam, cast-in-place continuous steel frame beam are applied more and more extensive in engineering construction.At present, this type of bridge adopts raft support method or steel pipe to bear frame method construction usually.At the Special section such as cross a river, soft base, raft support method obviously can not meet on-the-spot needs and ask.Now, steel pipe bears frame method construction comparatively general, and the strength and stability of falsework residing for fulcrum is the key that whole work progress and quality of main body project ensure, therefore, basement process is the key of whole work progress.If leap river, then an inserted to play steel pipe clump of piles artificially manufactures fulcrum force and meets requirement for bearing capacity; If be located in soft foundation zone, then need to process ground, processing method comprises the basement process such as bored pile, high-pressure rotary jet grouting pile, steel pipe pile.No matter adopt any foundation treatment mode, are all parts costly in whole falsework system, all can have the shortcomings such as the increase of construction cost, the wasting of resources.
Summary of the invention
The object of the invention is to solve in some special geology or construction environment, bear frame method construction after Full space support construction can not be adopted maybe must to adopt basement process and bring long in time limit, construction cost is large, the problems such as the wasting of resources, thus reach the object reducing basement process when bearing frame method construction as far as possible or do not carry out basement process, a kind of large-span non-floor type cast-in-place beam falsework and construction method thereof are provided.
The present invention adopts following technical scheme to realize:
The design feature of large-span non-floor type cast-in-place beam falsework of the present invention is: on the both sides cushion cap for supporting Cast-in-situ Beam and pier shaft, be symmetrical arranged two side stands, and the form of structure of described two side stands is:
At the top of concrete bearing platform, cushion cap pre-embedded steel slab is set by stone bolt;
The sidepiece differing heights position of concrete pier shaft arranges each pier shaft pre-embedded steel slab respectively by stone bolt;
Described cushion cap pre-embedded steel slab props up vertical steel pipe post and bracket bearing diagonal respectively;
Pier shaft column joint steel pipe on differing heights position is set between described each pier shaft pre-embedded steel slab and steel pipe post respectively;
Bracket horizontal support is set between described steel pipe post and bracket bearing diagonal;
Arrange unloading sand cylinder top cap respectively at the top of described steel pipe post and bracket bearing diagonal, described unloading sand cylinder top cap arranges Two bors d's oeuveres i iron, and Bailey beam is arranged on Two bors d's oeuveres i iron.
The design feature of large-span non-floor type cast-in-place beam falsework of the present invention is also:
Described bracket bearing diagonal and horizontal plane angle are not less than 45 o.
At described steel pipe post with between bracket bearing diagonal and described cushion cap pre-embedded steel slab, and described pier shaft column joint steel pipe be connected by flange between pier shaft pre-embedded steel slab.
The feature of the construction method of large-span non-floor type cast-in-place beam falsework of the present invention is carried out as follows:
A, concreting cushion cap and concrete pier shaft, and pre-buried cushion cap pre-embedded steel slab and pier shaft pre-embedded steel slab is distinguished in described concrete bearing platform and concrete pier shaft;
B, successively installation column steel pipe, bracket horizontal support, bracket bearing diagonal, unloading sand cylinder top cap, Two bors d's oeuveres i iron and Bailey beam;
C, described Bailey beam is laid channel-section steel, on channel-section steel, lay bamboo slab rubber, complete the construction of Cast-in-situ Beam falsework.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, large-span non-floor type cast-in-place beam falsework flexible structure of the present invention, easy accessibility, can greatly accelerating construction progress;
2, the material that large-span non-floor type cast-in-place beam falsework of the present invention uses can reuse, and economizes on resources, and reduces construction cost;
3, large-span non-floor type cast-in-place beam falsework of the present invention is used for, in cast-in-situ continuous beam and continuous steel frame construction, can not carrying out basement process, reducing the security risk in construction cost and construction;
4, the present invention is suitable for and is applied in some special geology or construction environment, could adopt the place of bearing frame method construction, can effectively avoid the construction period long after Full space support construction can not be adopted maybe must to adopt basement process, and construction cost is large, the problems such as the wasting of resources.
Accompanying drawing explanation
Fig. 1 is facade structures schematic diagram of the present invention;
Number in the figure: 1 cushion cap; 2 pier shaft pre-embedded steel slabs; 3 cushion cap pre-embedded steel slabs; 4 Cast-in-situ Beams; 5 pier shafts; 6 steel pipe posts; 7 pier shaft column joint steel pipes; 8 bracket horizontal supports; 9 column unloading sand cylinder top caps; 10 bracket bearing diagonals; 11 Two bors d's oeuveres i iron; 12 level connection joint steel pipes; 13 Bailey beams; 14 channel-section steels; 15 bamboo slab rubber.
Detailed description of the invention
See Fig. 1, in the present embodiment, the form of structure of large-span non-floor type cast-in-place beam falsework is: on the both sides cushion cap 1 for supporting Cast-in-situ Beam 4 and pier shaft 5, be symmetrical arranged two side stands, the form of structure of two side stands is: arrange cushion cap pre-embedded steel slab 3 at the top of concrete bearing platform 1 by stone bolt; The sidepiece differing heights position of concrete pier shaft 5 arranges each pier shaft pre-embedded steel slab 2 respectively by stone bolt; Cushion cap pre-embedded steel slab 3 props up vertical steel pipe post 6 and bracket bearing diagonal 10 respectively; Pier shaft column joint steel pipe 7 on differing heights position is set between each pier shaft pre-embedded steel slab 2 and steel pipe post 6 respectively; Bracket horizontal support 8 is set between steel pipe post 6 and bracket bearing diagonal 10; Arrange unloading sand cylinder top cap 9 respectively at the top of steel pipe post 6 and bracket bearing diagonal 10, unloading sand cylinder top cap 9 arranges Two bors d's oeuveres i iron 11, and Bailey beam 13 is arranged on Two bors d's oeuveres i iron 11; Bailey beam 13 is arranged on Two bors d's oeuveres i iron 11; Bailey beam 13 can adopt individual layer Bailey beam or double-deck Bailey beam; Routinely, be layered in Bailey beam 13 channel-section steel 14 is horizontal; Channel-section steel 14 is laid bamboo slab rubber 15, bamboo slab rubber 15 completes the construction of Cast-in-situ Beam 4.
In concrete enforcement, bracket bearing diagonal 10 and horizontal plane angle are not less than 45 o; At steel pipe post 6 with between bracket bearing diagonal 10 and cushion cap pre-embedded steel slab 3, and pier shaft column joint steel pipe 7 be connected by flange between pier shaft pre-embedded steel slab 2.In order to gain in strength, level connection joint steel pipe 12 can be set above a pair bracket bearing diagonal 10, between adjacent unloading sand cylinder top cap 9.
In the present embodiment, the feature of the construction method of large-span non-floor type cast-in-place beam falsework is carried out as follows:
1, concreting cushion cap 1 and concrete pier shaft 5, and pre-buried cushion cap pre-embedded steel slab 3 and pier shaft pre-embedded steel slab 2 is distinguished in concrete bearing platform 1 and concrete pier shaft 5;
2, column steel pipe 6, bracket horizontal support 8, bracket bearing diagonal 10, unloading sand cylinder top cap 9, Two bors d's oeuveres i iron 11 and Bailey beam 13 are installed successively;
3, in Bailey beam 13, lay channel-section steel 14, on channel-section steel 14, lay bamboo slab rubber 15, complete the construction of Cast-in-situ Beam falsework.
In order to ensure the concrete do not damaged on concrete bearing platform 1 and concrete pier shaft 5, the position of cushion cap pre-embedded steel slab 3 and pier shaft pre-embedded steel slab 2 should be made to be not less than 50cm apart from concrete edge; In order to ensure the stability of whole falsework, after the construction of steel pipe post, bracket horizontal support and bracket bearing diagonal, should connect as connecting rod adopting each other channel-section steel, forming the form of structure of bridging.
Claims (3)
1. a large-span non-floor type cast-in-place beam falsework, is characterized in that: on the both sides cushion cap (1) for supporting Cast-in-situ Beam (4) and pier shaft (5), be symmetrical arranged two side stands, the form of structure of described two side stands is:
At the top of concrete bearing platform (1), cushion cap pre-embedded steel slab (3) is set by stone bolt;
The sidepiece differing heights position of concrete pier shaft (5) arranges each pier shaft pre-embedded steel slab (2) respectively by stone bolt;
Described cushion cap pre-embedded steel slab (3) is propped up vertical steel pipe post (6) and bracket bearing diagonal (10) respectively;
Pier shaft column joint steel pipe (7) on differing heights position is set between described each pier shaft pre-embedded steel slab (2) and steel pipe post (6) respectively;
Bracket horizontal support (8) is set between described steel pipe post (6) and bracket bearing diagonal (10);
At the top of described steel pipe post (6) and bracket bearing diagonal (10), unloading sand cylinder top cap (9) is set respectively, described unloading sand cylinder top cap (9) arranges Two bors d's oeuveres i iron (11), and Bailey beam (13) is arranged on Two bors d's oeuveres i iron (11);
The construction method of described large-span non-floor type cast-in-place beam falsework is carried out as follows:
A, concreting cushion cap (1) and concrete pier shaft (5), and at described concrete bearing platform (1) and concrete pier shaft (5) middle pre-buried cushion cap pre-embedded steel slab (3) and pier shaft pre-embedded steel slab (2) respectively;
B, successively steel pipe post (6), bracket horizontal support (8), bracket bearing diagonal (10), unloading sand cylinder top cap (9), Two bors d's oeuveres i iron (11) and Bailey beam (13) are installed;
C, described Bailey beam (13) is laid channel-section steel (14), on channel-section steel (14), lay bamboo slab rubber (15), complete the construction of Cast-in-situ Beam falsework.
2. large-span non-floor type cast-in-place beam falsework according to claim 1, is characterized in that: described bracket bearing diagonal (10) and horizontal plane angle are not less than 45 °.
3. large-span non-floor type cast-in-place beam falsework according to claim 1, it is characterized in that: at described steel pipe post (6) with between bracket bearing diagonal (10) and described cushion cap pre-embedded steel slab (3), and described pier shaft column joint steel pipe (7) be connected by flange between pier shaft pre-embedded steel slab (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310163620.2A CN103243652B (en) | 2013-05-06 | 2013-05-06 | A kind of large-span non-floor type cast-in-place beam falsework and construction method thereof |
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| CN201310163620.2A CN103243652B (en) | 2013-05-06 | 2013-05-06 | A kind of large-span non-floor type cast-in-place beam falsework and construction method thereof |
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| CN103243652B true CN103243652B (en) | 2015-07-29 |
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Families Citing this family (18)
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| CN103866696A (en) * | 2014-03-26 | 2014-06-18 | 中铁二十四局集团安徽工程有限公司 | Cast-in-situ support of long-cantilever zero segment of short-pylon cable-stayed bridge |
| CN104963295A (en) * | 2015-07-27 | 2015-10-07 | 中铁九局集团第二工程有限公司 | Support frame for non-ground internal-force balanced cast-in-place beam and construction method thereof |
| CN105155414A (en) * | 2015-09-24 | 2015-12-16 | 中铁四局集团第二工程有限公司 | Floor-type slant-legged steel truss bracket of lower transverse beam of large-span cable tower |
| CN105625193A (en) * | 2016-03-14 | 2016-06-01 | 中铁二十四局集团安徽工程有限公司 | Whole-span cast-in-place beam inverted-triangle formwork supporting frame and construction method thereof |
| CN106012848B (en) * | 2016-06-08 | 2018-02-06 | 江苏燕宁建设工程有限公司 | A kind of pre-buried bracket construction method of cast-in-situ box girder and bridge |
| CN106087746A (en) * | 2016-06-14 | 2016-11-09 | 江苏燕宁建设工程有限公司 | A kind of cast-in-situ box girder falsework construction method and bridge |
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| CN108103956B (en) * | 2017-12-21 | 2020-02-14 | 中铁三局集团华东建设有限公司 | Construction method of side span cable-stayed bracket of cantilever cast beam |
| CN108411790A (en) * | 2018-05-11 | 2018-08-17 | 中铁广州工程局集团有限公司 | A kind of adjustable installing bracket of prefabricated assembled segmentation bent cap |
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| CN110230393B (en) * | 2019-06-18 | 2024-04-05 | 中建三局第二建设工程有限责任公司 | Large concrete tank dome climbing high formwork support system and installation method |
| CN110593102A (en) * | 2019-08-22 | 2019-12-20 | 中铁十六局集团第四工程有限公司 | High mound continuous beam construction support |
| CN111576734A (en) * | 2020-04-30 | 2020-08-25 | 中建五局第三建设有限公司 | Secondary-support-free high formwork overlapping construction method for large-section concrete beam |
| CN112227227B (en) * | 2020-10-21 | 2022-11-25 | 中铁八局集团第一工程有限公司 | Construction method of large-span beam column type support |
| CN113585076A (en) * | 2021-07-08 | 2021-11-02 | 中国建筑第六工程局有限公司 | Construction method of overwater large-span double-layer cast-in-place beam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007023714A (en) * | 2005-07-21 | 2007-02-01 | Jfe Engineering Kk | Composite floor slab using shape steel, composite floor slab bridge or composite girder bridge and its construction method |
| CN101570958A (en) * | 2009-05-25 | 2009-11-04 | 中铁十二局集团有限公司 | Device for safely demounting large-scale cast-in-place girder scaffold and using method thereof |
| KR20110093158A (en) * | 2010-02-11 | 2011-08-18 | 청운건설 주식회사 | Concrete forming load steel complex girder and this construction technique |
| CN102747677A (en) * | 2012-07-27 | 2012-10-24 | 中铁三局集团有限公司 | Bridge and construction method thereof |
| CN203213021U (en) * | 2013-05-06 | 2013-09-25 | 中铁二十四局集团安徽工程有限公司 | Large-span non-ground type cast-in-place beam falsework |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7461427B2 (en) * | 2004-12-06 | 2008-12-09 | Ronald Hugh D | Bridge construction system and method |
-
2013
- 2013-05-06 CN CN201310163620.2A patent/CN103243652B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007023714A (en) * | 2005-07-21 | 2007-02-01 | Jfe Engineering Kk | Composite floor slab using shape steel, composite floor slab bridge or composite girder bridge and its construction method |
| CN101570958A (en) * | 2009-05-25 | 2009-11-04 | 中铁十二局集团有限公司 | Device for safely demounting large-scale cast-in-place girder scaffold and using method thereof |
| KR20110093158A (en) * | 2010-02-11 | 2011-08-18 | 청운건설 주식회사 | Concrete forming load steel complex girder and this construction technique |
| CN102747677A (en) * | 2012-07-27 | 2012-10-24 | 中铁三局集团有限公司 | Bridge and construction method thereof |
| CN203213021U (en) * | 2013-05-06 | 2013-09-25 | 中铁二十四局集团安徽工程有限公司 | Large-span non-ground type cast-in-place beam falsework |
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