CN102733307B - Method for constructing cast-in-place beam falsework - Google Patents
Method for constructing cast-in-place beam falsework Download PDFInfo
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- CN102733307B CN102733307B CN201210199644.9A CN201210199644A CN102733307B CN 102733307 B CN102733307 B CN 102733307B CN 201210199644 A CN201210199644 A CN 201210199644A CN 102733307 B CN102733307 B CN 102733307B
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Abstract
The invention belongs to the technical field of construction of cast-in-place beam falseworks in bridge engineering, particularly relates to a method for constructing a cast-in-place beam falsework, and aims to solve the problems of long construction period, high construction cost, resource waste and the like caused by construction with a falsework method after foundation treatment, which must be used in certain specific geological or construction environments. The method comprises the following steps of: manufacturing an assembled symmetrical inclined leg device; treating a soft foundation, and constructing a strip-type concrete foundation on the upper part of the soft foundation; and mounting the assembled symmetrical inclined leg device on the strip-type concrete foundation, and connecting a double-assembled section steel main beam, a bailey beam, a square timber and a bottom die on the top of an adjusting system, and adjacent steel pipe upright columns by using channel steel. The method has the advantages that the structure is flexible, resources are saved, the construction cost is reduced, a support is convenient to dismount and mount, the construction progress is accelerated, the range of foundation treatment can be reduced, and the construction cost and security risk in construction are reduced.
Description
Technical field
The technical field that the invention belongs to Cast-in-situ Beam falsework construction in bridge engineering, is specifically related to a kind of Cast-in-situ Beam falsework construction method.
Background technology
At present, in the time of construction railroad, highway cast-in-situ continuous beam, cast-in-place continuous rigid frame, all adopt full framing method or steel pipe to bear frame method construction.(Ru Kua road, cross a river or in soft base district) under special circumstances, full framing method can not meet field requirement, and it is comparatively general that now steel pipe is born frame method construction.And in some special geology or construction environment, as in Zhejiang, there is very thick Soft Soil Layer at the coastal area such as Jiangsu, Guangdong and the bridge location place of crossing over rivers, bearing capacity is extremely low, adopts to bear frame method construction, must process ground, to ensure the construction of major project.And in construction major project process, the intensity of falsework system and stability are the keys that whole work progress and quality of main body project ensure, and then it is the key of whole construction that falsework ground is processed.Only the intensity of guaranteed ground processing and sedimentation meet the demands, and its strutting system could well ensure the construction of major project.At present, use foundation treatment mode comparatively widely to comprise the processing of drill-pouring pile foundation, the processing of high-pressure rotary-spray pile foundation, the processing of steel pipe pile ground etc.No matter be any foundation treatment mode, are all very high parts of expense in whole falsework system, all can cause construction cost greatly to increase, cause the shortcomings such as the wasting of resources.
Summary of the invention
Goal of the invention of the present invention is in order to solve in some special geology or construction environment, must adopt ground process after bear frame method construction and bring long in time limit, construction cost is large, the problems such as the wasting of resources, thereby reach the ground processing as far as possible reducing while bearing frame method construction or the object of not carrying out ground processing, a kind of Cast-in-situ Beam falsework construction method is provided.
The present invention adopts following technical scheme to realize:
A kind of Cast-in-situ Beam falsework construction method, its step is as follows:
1), the assembling symmetrical inclined leg device that completes,
Described assembling symmetrical inclined leg device comprises primary structure member, connected system and some groups of regulating systems,
Described regulating system comprises movable head and is placed on the fin steel tube that adds outside movable head, and described ribbing steel duct arranges the adjustable track of longitudinal plank frame, adds fin steel tube bottom welding mounting flange; Described movable head comprise top steel plate with and bottom connect adjustable column, on adjustable column, have can with the chute of adjustable track generation relative sliding, chute bottom arranges limiting plate, the adjusting gag of the wedge shape that can fill between adjustable track top and chute between adjustable track top and chute, is equipped with
Described primary structure member comprises and connects the horizontal shaped steel of each regulating system and support each regulating system and longitudinal steel pipe of horizontal shaped steel, laterally between the outer end of shaped steel and the lower end of longitudinal steel pipe, be also provided with the battered leg shaped steel that connects the two, the connection of each several part all adopts flange to be connected with bolt
2), treatment of soft foundation, then soft base top construction strip concrete foundation, the scope for the treatment of of soft foundation and strip concrete foundation meets the scope of longitudinal steel pipe of assembling symmetrical inclined leg device;
3), assembling symmetrical inclined leg device is installed in strip concrete foundation,
A, basis absolute altitude on the spot, at the steel pipe post of the bottom of longitudinal steel pipe connection Len req, winch to construction area by the battered leg device entirety that connects steel pipe post, steel pipe bottom be connected on concrete foundation,
B, according to absolute altitude measuring and calculating, control and regulation gag is filled in the degree of depth within adjustable track and chute, reaches absolute altitude requirement;
4), Two bors d's oeuveres shaped steel main beam, Bailey beam, the lumps of wood and bed die be set at regulating system top,
5), adopt channel-section steel to connect as connecting rod between adjacent steel pipe post, the form that arranges of connecting rod is bridging form.
The present invention has following beneficial effect: 1. adopted assembling symmetrical inclined leg member, its flexible structure, can be according to the height adjustment steel pipe post height of practice of construction falsework; 2. adopt symmetrical battered leg structure, can reuse temporary structure material, saved resource, reduced construction cost; 3. the method adopts the symmetrical battered leg of adjustable assembling, and its support easy accessibility, has accelerated construction speed; 4. when the method is for cast-in-situ continuous beam and continuous rigid frame, can reduce the scope of ground processing, reduce the quantity of falsework central post, reduce the model of top distribution beam, reduce the security risk in construction cost and construction; When the method is used for continuous girders by suspension grouting 0# piece and end bay cast-in-place section construction, can utilize the cushion cap of major project, can not carry out ground processing, reduce construction cost, accelerate speed of application.
Brief description of the drawings
Fig. 1 is the structural representation of assembling symmetrical inclined leg device,
Fig. 2 is the structural representation of regulating system,
Fig. 3 is the structural representation of movable head,
Fig. 4 is the structural representation that adds fin steel tube,
Fig. 5 be the present invention for falsework cast-in-situ continuous beam, continuous steel frame schematic cross-sectional view,
Fig. 6 is existing falsework cast-in-situ continuous beam, continuous steel frame schematic cross-sectional view,
Fig. 7 be the present invention for continuous girders by suspension grouting end bay cast-in-place section construction schematic cross-sectional view,
In figure: 1-adds fin steel tube, 2-adjustable track, 3-deep floor, 4-flange, 5-top steel plate, 6-adjustable column, 7-chute, 8-regulates gag, the horizontal shaped steel of 9-, the longitudinal steel pipe of 10-, 11-battered leg shaped steel, 12-steel pipe post, 13-ground process range, 14-connecting rod, 15-shaped steel main beam, 16-Bailey beam.
Detailed description of the invention
By reference to the accompanying drawings the detailed description of the invention of this construction method is described further.
Cast-in-situ continuous beam or the construction of Continuous Rigid-framed Girder falsework adopt the symmetrical battered leg falsework construction of assembling, main span 32.6m, at span centre, one row basis is temporarily set, in both sides cushion cap, span centre strip foundation, arrange steel pipe post assembling symmetrical inclined leg device by design elevation, on it, arrange Two bors d's oeuveres shaped steel main beam, adopt Bailey beam, above establish the lumps of wood and bed die.Described assembling symmetrical inclined leg device comprises primary structure member, connected system and some groups of regulating systems, described regulating system comprises movable head and is placed on the fin steel tube that adds outside movable head, described ribbing steel duct arranges the adjustable track of longitudinal plank frame, adds fin steel tube bottom welding mounting flange; Described movable head comprise top steel plate with and bottom connect adjustable column, on adjustable column, have can with the chute of adjustable track generation relative sliding, chute bottom arranges limiting plate, the adjusting gag that can fill in the wedge shape in it between adjustable track top and chute, is equipped with, described primary structure member comprises and connects the horizontal shaped steel of each regulating system and support each regulating system and longitudinal steel pipe of horizontal shaped steel, laterally between the outer end of shaped steel and the lower end of longitudinal steel pipe, be also provided with the battered leg that connects the two, the connection of each several part all adopts flange to be connected with bolt.
Detailed description of the invention is:
1, construction of soft soil treatment, carries out treatment of soft foundation by drilled pile, and form of construction work is carried out routinely;
2, top bar shaped foundation construction, connects into an entirety by strip foundation and drilled pile, and strip foundation construction is constructed in the usual way, and its size inspection is calculated and determined;
3, the symmetrical battered leg construction of cushion cap and bar base upper steel tube column assembling, first by the requirement of the symmetrical battered leg plan of assembling, regulating system, primary structure member and the connected system of processing and fabricating symmetrical inclined leg device.Then be transported to job site, at construction area original ground, battered leg part is assembled into an entirety, it is as a whole to be that vertical special steel pipe, cross bar i iron, battered leg i iron connect, then basis absolute altitude on the spot, assembling falsework structure bottom steel pipe post, symmetrical inclined leg device entirety is winched to construction area by the artificial crane that coordinates, and carries out bottom connection, after carry out the connection of top regulating system.Wherein, top regulating system has been carried out as a whole in the time dispatching from the factory, without on-site consolidation.After above all process steps completes, according to absolute altitude measuring and calculating, rationally utilize adjustment gag to carry out the adjustment of last absolute altitude, finally reach the requirement of falsework system main body construction.Assembling symmetrical inclined leg device angle, size and size draw by structural calculation.
4, all constructions according to a conventional method such as top Two bors d's oeuveres H shaped steel crossbeam, Bailey bracket longeron, the lumps of wood, bed die, finally complete the construction of whole falsework structure, finally carry out continuous beam main structure construction.
5, for ensureing the stability of whole falsework system, steel pipe post and the construction of battered leg device complete after, between this, adopt 10 channel-section steels to connect as connecting rod, the form of setting is bridging form.
6, when the present invention is for cast-in-situ continuous beam and continuous rigid frame, the scope of ground processing and strip concrete foundation only need to meet the scope of steel pipe post under the battered leg device of both sides, because battered leg device is the overhanging design of bracket, little when the range size of the processing of bottom ground and strip concrete foundation is constructed compared with common steel pipe post falsework, specifically see Fig. 5,6.
7, when the present invention is for continuous girders by suspension grouting 0# piece and end bay cast-in-place section construction, can utilize the cushion cap of major project, the sponson of battered leg device can meet the concrete construction of most of end bay Cast-in-Situ Segment sponson, and ground processing that more common steel pipe post falsework construction is less, is specifically shown in Fig. 7.
When the present invention is used for cast-in-situ continuous beam and continuous rigid frame, reduce the scope of ground processing, reduced the quantity of falsework central post, reduced the model of top distribution beam, reduced the security risk in construction cost and construction; In the time that the method is used for continuous girders by suspension grouting 0# piece and end bay cast-in-place section construction, falsework part construction method is the same, in most of engineering, can utilize the cushion cap of major project, not carry out ground processing, also can meet construction requirement, thereby reduce construction cost, accelerated speed of application.In this construction method, assembling symmetrical inclined leg device can be determined its model, size according to practice of construction environment, and industrial machine-shaping, has ensured the quality of structure, and its bearing capacity meets construction requirement, can be well in-situ beam casting service.
Claims (1)
1. a Cast-in-situ Beam falsework construction method, its step is as follows:
1), the assembling symmetrical inclined leg device that completes,
Described assembling symmetrical inclined leg device comprises primary structure member, connected system and some groups of regulating systems,
Described regulating system comprises movable head and is placed on and add fin steel tube (1) outside movable head, and the described adjustable track (2) that adds fin steel tube (1) inside and arrange longitudinal plank frame, adds fin steel tube (1) bottom welding mounting flange (4); Described movable head comprise top steel plate (5) with and bottom connect adjustable column (6), on adjustable column (6), have the chute (7) that relative sliding can occur with adjustable track (2), chute (7) bottom arranges limiting plate, the adjusting gag (8) that can fill in the wedge shape between adjustable track (2) top and chute (7) between adjustable track (2) top and chute (7), is equipped with
Described primary structure member comprises and connects the horizontal shaped steel (9) of each regulating system and support each regulating system and longitudinal steel pipe (10) of horizontal shaped steel, laterally between the outer end of shaped steel (9) and the lower end of longitudinal steel pipe (10), be also provided with the battered leg shaped steel (11) that connects the two, the connection of each several part all adopts flange to be connected with bolt
2), treatment of soft foundation, then soft base top construction strip concrete foundation, the scope for the treatment of of soft foundation and strip concrete foundation meets the scope of longitudinal steel pipe of assembling symmetrical inclined leg device;
3), assembling symmetrical inclined leg device is installed in strip concrete foundation,
A, basis absolute altitude on the spot, at the steel pipe post (12) of the bottom of longitudinal steel pipe connection Len req, winch to construction area by the battered leg device entirety that connects steel pipe post, steel pipe bottom be connected on concrete foundation,
B, according to absolute altitude measuring and calculating, control and regulation gag is filled in the degree of depth within adjustable track and chute, reaches absolute altitude requirement;
4), Two bors d's oeuveres shaped steel main beam (15), Bailey beam (16), the lumps of wood and bed die be set at regulating system top,
5), adopt channel-section steel to connect as connecting rod (14) between adjacent steel pipe post (12), the form that arranges of connecting rod (14) is bridging form.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210199644.9A CN102733307B (en) | 2012-06-18 | 2012-06-18 | Method for constructing cast-in-place beam falsework |
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| CN201210199644.9A CN102733307B (en) | 2012-06-18 | 2012-06-18 | Method for constructing cast-in-place beam falsework |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104652288A (en) * | 2015-03-06 | 2015-05-27 | 中铁十六局集团第二工程有限公司 | Construction system of cast-in-situ large-tonnage box girder for soft soil foundation and construction method |
| CN105839539A (en) * | 2016-04-29 | 2016-08-10 | 贵州桥梁建设集团有限责任公司 | Rigid frame bridge zero section support and construction method thereof |
| CN108978477A (en) * | 2018-07-27 | 2018-12-11 | 武汉市盘龙明达建筑有限公司 | A kind of cast-in-situ box girder shuttering supporting body assembly technology |
| CN110565526A (en) * | 2019-07-29 | 2019-12-13 | 南昌大学 | Conveniently-disassembled side-span cast-in-place support suitable for bridge and construction method |
| CN110409320A (en) * | 2019-08-21 | 2019-11-05 | 广西路建工程集团有限公司 | A kind of the concrete cast-in-situ bracket and its construction method of adjustable slope |
| CN114718219B (en) * | 2022-04-06 | 2024-02-13 | 河南方元建筑工程有限公司 | Building construction with shock-resistant lightweight steel structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327108A (en) * | 2001-07-19 | 2001-12-19 | 大连理工大学 | First simply supporting and then continuously tensioning construction technology for post-crossing long-bundle prestressed rib |
| JP2002097608A (en) * | 2000-09-26 | 2002-04-02 | Shimizu Corp | Method of remounting railway bridge |
| JP2004324340A (en) * | 2003-04-28 | 2004-11-18 | Nishimatsu Constr Co Ltd | Steel shell for footing foundation, structure of bridge, construction method of bridge, and construction method of grade separation viaduct |
| KR100775053B1 (en) * | 2007-04-23 | 2007-11-08 | 매일종합건설(주) | The original seat concrete ballast method of construction and its structure for which existence steel girder was utilized |
| CN101586328A (en) * | 2009-06-12 | 2009-11-25 | 中国第一冶金建设有限责任公司 | Anchor ear angle-table bracket building method for bridge sidespan closure segment construction |
| CN101824800A (en) * | 2010-04-28 | 2010-09-08 | 中铁三局集团有限公司 | Method for construction of bridge cast-in-situ pre-stressed concrete continuous beam |
-
2012
- 2012-06-18 CN CN201210199644.9A patent/CN102733307B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002097608A (en) * | 2000-09-26 | 2002-04-02 | Shimizu Corp | Method of remounting railway bridge |
| CN1327108A (en) * | 2001-07-19 | 2001-12-19 | 大连理工大学 | First simply supporting and then continuously tensioning construction technology for post-crossing long-bundle prestressed rib |
| JP2004324340A (en) * | 2003-04-28 | 2004-11-18 | Nishimatsu Constr Co Ltd | Steel shell for footing foundation, structure of bridge, construction method of bridge, and construction method of grade separation viaduct |
| KR100775053B1 (en) * | 2007-04-23 | 2007-11-08 | 매일종합건설(주) | The original seat concrete ballast method of construction and its structure for which existence steel girder was utilized |
| CN101586328A (en) * | 2009-06-12 | 2009-11-25 | 中国第一冶金建设有限责任公司 | Anchor ear angle-table bracket building method for bridge sidespan closure segment construction |
| CN101824800A (en) * | 2010-04-28 | 2010-09-08 | 中铁三局集团有限公司 | Method for construction of bridge cast-in-situ pre-stressed concrete continuous beam |
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