CN201770942U - Support for soft soil foundation cast-in-place concrete continuous beam bridge - Google Patents

Support for soft soil foundation cast-in-place concrete continuous beam bridge Download PDF

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Publication number
CN201770942U
CN201770942U CN2009200945655U CN200920094565U CN201770942U CN 201770942 U CN201770942 U CN 201770942U CN 2009200945655 U CN2009200945655 U CN 2009200945655U CN 200920094565 U CN200920094565 U CN 200920094565U CN 201770942 U CN201770942 U CN 201770942U
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CN
China
Prior art keywords
steel
post
cup
pipe pile
bracket
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CN2009200945655U
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Chinese (zh)
Inventor
王兆威
李凯
谭深贵
张亮
张艳娇
王晓刚
吴洪举
杜惠萍
邵凤书
冯科
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中铁九局集团第三工程有限公司
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Priority to CN2009200945655U priority Critical patent/CN201770942U/en
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Publication of CN201770942U publication Critical patent/CN201770942U/en

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Abstract

The utility model relates to a support for a soft soil foundation cast-in-place concrete continuous beam bridge, a steel support unit, a sand cylinder, a cross beam, a longitudinal beam and a sole timber which are adopted can be prefabricated in advance according to the design or assembled on the field; or the steel support unit can be produced into a standard part in the appropriate size and then assembled with the sand cylinder, the cross beam, the longitudinal beam and the sole timber on the field. The support can save time and save cost in comparison with the assembly of a full house type support. When in construction, a soft soil foundation is a mechanically driven steel pipe piles, and the construction progress is fast; furthermore, the process is simple, and the time is saved in comparison with a compacted fill, a gravel pile, a cement mixing pile and the like, thereby shortening the construction period of the soft soil foundation cast-in-place concrete continuous beam bridge and further reducing the engineering cost.

Description

Be used for the in-situ casting concrete continuous girder bridge on soft soil foundation support
Technical field
The utility model relates to the support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation.
Background technology
Do not establish prestressed continuous girder bridge and generally adopt the support cast-in-site, the full hall of the general employing of a support cribbing, full hall cribbing is to assemble at the scene with steel pipe and connector, is abound with Yu Liangxia, its consumption steel pipe and connector are many, waste time and energy again.If bridge site is positioned on the soft foundation, when the bearing capacity of ground and sedimentation are difficult to requiring of satisfied full hall cribbing, must handle soft foundation, for satisfying the requirement of full hall cribbing, soft foundation is handled and can be selected: (1) is changed and is filled out rolled-on method: by calculating, the weak soil of certain depth is excavated, changed and fill out grit, mountain skin soil or rubble etc. and roll, so that ground reaches certain bearing capacity.(2) broken stone pile: clamp-on the stratum with the stake pipe that vibration or shock loading are equipped with the flapper-type shoe with the bottom, in soft foundation behind the pore-forming, again rubble is dropped in the stake pipe from stake pipe dog-house, pile pulling pipe on reality, the limit is hit on the limit then, form closely knit broken stone pile, and form composite foundation with pile peripheral earth, broken stone pile plays metathesis to foundation soil, with raising bearing capacity of foundation soil and minimizing sedimentation, thereby reach the purpose that ground is handled.(3) cement mixing pile: utilize cement as curing compound, by special deep mixer tool, while boring in the weak soil jet cement slurries or vaporific powder, on the spot weak soil is cured as in the ground depths have enough intensity, the cement-soil of modulus of deformation and stability, thereby reach the purpose of ground stabilization.These method long construction periods, the engineering cost height.(list of references: [1] " ground is handled handbook editorial board. and ground is handled handbook. Beijing: China Construction Industry Press, 1993.[2] Tang Wenjun. the cement paddling process is reinforced the research of soft layer major influence factors. subgrade construction, 2002, (5).[3] Huang Shengwen. " the highway engineering ground is handled handbook. the .2005 of People's Transportation Press, (7).)
The utility model content
The purpose of this utility model provides the support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation.
Shown in Fig. 1,2,3,4,5,6,7 and 8, the support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation, it is by first steel post, second steel post, the 3rd steel post and the 4th steel post, flange, first steel pipe pile, second steel pipe pile, the 3rd steel pipe pile and the 4th steel pipe pile, diagonal brace, horizontal brace, sand tube, crossbeam, longeron, chock and batten plate constitute;
Being constructed as follows of each steel bracket unit: by 4 steel posts: first steel post, second steel post, the 3rd steel post, the 4th steel post, 12 diagonal braces, 8 horizontal braces and 24 batten plates are formed; Support to be welded to connect by first steel post, second steel post, the 3rd steel post, the 4th steel post and 8 molten steel and form a cuboid framework, form the steel post at each angle on each plane of cuboid framework and molten steel and all weld a rectangle steel batten plate between supporting, steel diagonal brace of welding between the steel batten plate at the diagonal angle on each plane of forming the cuboid framework;
Two or more steel bracket unit are vertically combined form the steel bracket constituent element; The steel bracket unit of two or more standards vertically combined form the steel bracket constituent element; Described steel bracket unit can also be made the standard component of certain size;
Specifically be that a flange that specification is identical is all welded at first steel post, second steel post, the 3rd steel post of each steel bracket, the two ends of the 4th steel post, corresponding placement of the identical flange of the specification at the two ends of first steel post of two steel bracket correspondences, second steel post, the 3rd steel post, the 4th steel post, two flange are coupled together with bolt by bolt hole, form the steel bracket constituent element thereby steel bracket coupled together;
Nethermost first steel post of forming each steel bracket unit of steel bracket constituent element, second steel post, the 3rd steel post, the 4th steel post respectively with first steel pipe pile, second steel pipe pile, the 3rd steel pipe pile, the 4th corresponding placement of steel pipe pile, a flange of the lower end welding of every steel post welds the corresponding placement of flange that specification is identical with the upper end of the steel pipe pile of squeezing into soft foundation, two flange are coupled together with bolt by bolt hole, thereby every steel post and every steel pipe pile of described each steel bracket unit are connect, just steel bracket constituent element and steel pipe pile are connect.
The sand tube all is equipped with in the upper end of each steel post of the uppermost steel bracket unit of described steel bracket constituent element, and the sand tube is a member commonly used in the construction; Being constructed as follows of sand tube:
The bottom of first steel pipe is welded into first cup with circular steel plate, the welded top steel plate of this cup, and the steel pipe of cup is positioned at the center of this steel plate;
The bottom of the steel pipe of second larger diameter also is welded into second cup with circular steel plate, and quartzy sand hole is arranged at the bottom of the steel pipe of this cup, quartzy sand hole stopper jam-pack, and packing in the steel pipe of cup highly is the quartz sand of h;
First cup steel pipe of welded top steel plate is inserted in second cup, and the bottom of first cup is positioned at highly on the quartz sand surface of h, finally constitutes the sand tube; Quartz sand height h in the sand tube is the elevation in order to adjustment steel bracket top, and the height h of described quartz sand determines according to the difference in height of steel bracket top with the continuous girder bridge bottom of being built;
Bolt hole is arranged at the bottom of second cup of sand tube, the bottom of second cup of sand tube contacts placement with the flange of steel post, the flange of the bottom of second cup and steel post is coupled together by bolt hole with bolt, thereby sand tube and steel post are coupled together;
Between two sand tubes, on the steel plate of sand tube upper end welding, gooseneck is installed along the continuous girder bridge transverse weld; Crossbeam is to be used for bearing the load that the top is transmitted, and the load that the top is transmitted is passed to the steel post that is attached thereto equably by the sand tube;
On gooseneck, along continuous girder bridge the steel longeron is installed vertically, gooseneck and steel longeron adopt i iron to make, and gooseneck adopts bolt to be connected with the steel longeron; Steel longeron and steel longeron laterally between adopt double steel plate to be connected with bolt; The technical functionality of longeron is to accept the load that the top is transmitted, and this load passed to equably is attached thereto the crossbeam that connects.
In the upper surface of steel longeron, along continuous girder bridge laterally, between two steel longerons, chock is installed, chock adopts the pine side of high-quality, adopts iron wire to bundle between chock and the steel longeron and is connected and fixed; Constituted the support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation; The technical functionality of described chock is the levelling of the thin portion of crest level, and bears the load that case beam and template transmit, and load is passed to the below equably be attached thereto the longeron that connects.
The described support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation that the utility model provides, the steel bracket unit of employing and sand tube, crossbeam, longeron and chock all are can be prefabricated in advance according to design, assembled on site; Perhaps, described steel bracket unit is made the standard component of suitable dimension, then with sand tube, crossbeam, longeron and chock assembled on site.
During use,, entire field fluid concrete continuous girder bridge is played a supportive role the facade assembled arrangement of the support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation along continuous girder bridge.
The using method of support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation is as follows:
1), the flange of welding steel pile tube: burn-on the respectively flange in tape splicing hole of the upper end of first steel pipe pile, second steel pipe pile, the 3rd steel pipe pile and the 4th steel pipe pile;
2), squeeze into steel pipe pile: squeeze into first steel pipe pile, second steel pipe pile, the 3rd steel pipe pile and the 4th steel pipe pile at the soft foundation scene;
3), steel bracket unit is installed: first steel post of each steel bracket unit that assembles, second steel post, the 3rd steel post, the 4th steel post respectively with first steel pipe pile, second steel pipe pile, the 3rd steel pipe pile, the 4th corresponding placement of steel pipe pile, a flange of the lower end welding of every steel post welds the corresponding placement of flange that specification is identical with the upper end of the steel pipe pile of squeezing into soft foundation, two flange are coupled together with bolt by bolt hole, thereby every steel post and every steel pipe pile of described each steel bracket unit are connect, just steel bracket constituent element and steel pipe pile are connect;
4), assemble the steel bracket constituent element: two or more steel bracket unit are vertically combined form the steel bracket constituent element; Specifically be that a flange that specification is identical is all welded at first steel post, second steel post, the 3rd steel post of each steel bracket, the two ends of the 4th steel post, corresponding placement of the identical flange of the specification at the two ends of first steel post of two steel bracket correspondences, second steel post, the 3rd steel post, the 4th steel post, two flange are coupled together with bolt by bolt hole, form the steel bracket constituent element thereby steel bracket coupled together;
5), the sand tube is installed: the bottom of second cup of sand tube contacts placement with the flange of steel post, bolt hole is arranged at the bottom of second cup of sand tube, the bottom of second cup of sand tube and the flange of steel post are coupled together by bolt hole with bolt, thereby sand tube and steel post are coupled together;
6), crossbeam is installed: between two sand tubes, on the steel plate of sand tube upper end welding, gooseneck is installed along the continuous girder bridge transverse weld;
7), longeron is installed: on gooseneck, along continuous girder bridge the steel longeron is installed vertically, gooseneck and steel longeron adopt i iron to make, and gooseneck adopts bolt to be connected with the steel longeron; Steel longeron and steel longeron laterally between adopt double steel plate to be connected with bolt;
8), chock is installed: in the upper surface of steel longeron, along continuous girder bridge laterally, between two steel longerons, chock is installed, chock adopts the pine side of high-quality, adopts iron wire to bundle between chock and the steel longeron and is connected and fixed; So far, installation be used for the support of in-situ casting concrete continuous girder bridge on soft soil foundation.
Installation after being used for the support of in-situ casting concrete continuous girder bridge on soft soil foundation, in-situ casting concrete continuous girder bridge in the above just.
Construction finishes, withdraw from the support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation, earlier the stopper of the quartzy sand hole in the bottom of the steel pipe of second cup of sand tube is extracted, emit the quartz sand in the sand tube, so, be used for the support of in-situ casting concrete continuous girder bridge on soft soil foundation and the continuous girder bridge of construction and disengage, thereby, withdraw from assembly from top to bottom.
Beneficial effect: the described support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation that the utility model provides, the steel bracket unit of employing and sand tube, crossbeam, longeron and chock all are can be prefabricated in advance according to design, assembled on site; Perhaps, described steel bracket unit is made the standard component of suitable dimension, then with sand tube, crossbeam, longeron and chock assembled on site.This saves time than the full hall of assembling cribbing and saves cost.
The described support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation that the utility model provides, during construction, steel pipe pile is squeezed into for machinery in the soft foundation basis, construction speed is fast, and technology is simple, than change fill out roll, broken stone pile, cement mixing pile etc. will save time, therefore shortened construction period, thereby also reduced engineering cost at soft foundation cast-in-situ concrete continuous girder bridge.
Description of drawings
Fig. 1 is the front view of the user mode schematic diagram of soft foundation cast-in-situ concrete continuous girder bridge support.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the A-A cross-sectional schematic among Fig. 1.This figure also is the structural representation of the steel bracket constituent element of soft foundation cast-in-situ concrete continuous girder bridge support.
Fig. 4 is the D-D sectional view among Fig. 3.This figure also is the sectional view of structural representation of the steel bracket unit of soft foundation cast-in-situ concrete continuous girder bridge support.
Fig. 5 is the C-C sectional view among Fig. 3.This figure also is the sectional view of the assembling schematic diagram of steel pipe pile.
Fig. 6 is the B-B cross-sectional schematic among Fig. 1.This figure also is the structural representation of the steel bracket unit of soft foundation cast-in-situ concrete continuous girder bridge support.
Fig. 7 is the F-F sectional view among Fig. 6.This figure also is the sectional view of structural representation of the steel bracket unit of soft foundation cast-in-situ concrete continuous girder bridge support.
Fig. 8 is the E-E sectional view among Fig. 6.This figure also is the assembling schematic diagram of steel pipe pile.
The specific embodiment
Embodiment 1 is shown in Fig. 1,2,3,4,5,6,7 and 8, the support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation, its spy just is that it is by first steel pipe pile 11, second steel pipe pile 12, the 3rd steel pipe pile 13 and the 4th steel pipe pile 14, flange; First steel post 21, second steel post 22, the 3rd steel post 23 and the 4th steel post 24; Steel diagonal brace, molten steel support, sand tube, gooseneck, steel longeron, chock and steel batten plate constitute;
Being constructed as follows of each steel bracket unit: by 4 steel posts: first steel post 21, second steel post 22, the 3rd steel post 23,24,12 diagonal braces of the 4th steel post, 8 horizontal braces and 24 batten plates are formed; Support to be welded to connect by first steel post 21, second steel post 22, the 3rd steel post 23, the 4th steel post 24 and 8 molten steel and form a cuboid framework, form the steel post at each angle on each plane of cuboid framework and molten steel and all weld a rectangle steel batten plate between supporting, steel diagonal brace of welding between the batten plate of the steel at the diagonal angle on each plane of forming the cuboid framework;
Two or more steel bracket unit are vertically combined form the steel bracket constituent element; Perhaps, described steel bracket unit can be made the standard component of certain size, the steel bracket unit of two or more standards is vertically combined form the steel bracket constituent element;
Specifically be that a flange that specification is identical is all welded at first steel post 21, second steel post 22, the 3rd steel post 23 of each steel bracket, the two ends of the 4th steel post 24, corresponding placement of the identical flange of the specification at the two ends of first steel post 21 of two steel bracket correspondences, second steel post 22, the 3rd steel post 23, the 4th steel post 24, two flange are coupled together with bolt by bolt hole, form the steel bracket constituent element thereby steel bracket coupled together;
Nethermost first steel post 21 of forming each steel bracket unit of steel bracket constituent element, second steel post 22, the 3rd steel post 23, the 4th steel post 24 respectively with first steel pipe pile 11, second steel pipe pile 12, the 3rd steel pipe pile 13, the 4th steel pipe pile 14 corresponding placements, a flange of the lower end welding of every steel post welds the corresponding placement of flange that specification is identical with the upper end of the steel pipe pile of squeezing into soft foundation, two flange are coupled together with bolt by bolt hole, thereby every steel post and every steel pipe pile of described each steel bracket unit are connect, just steel bracket constituent element and steel pipe pile are connect.
The sand tube all is equipped with in the upper end of each steel post of the uppermost steel bracket unit of described steel bracket constituent element, and the sand tube is a member commonly used in the construction; Being constructed as follows of sand tube:
The bottom of first steel pipe is welded into first cup with circular steel plate, the welded top steel plate of this cup, and the steel pipe of cup is positioned at the center of this steel plate;
The bottom of the steel pipe of second larger diameter also is welded into second cup with circular steel plate, and quartzy sand hole is arranged at the bottom in the steel pipe of cup, quartzy sand hole stopper jam-pack, and packing in the steel pipe of cup highly is the quartz sand of h;
First cup steel pipe of welded top steel plate is inserted in second cup, and the bottom of first cup is positioned at highly on the quartz sand surface of h, finally constitutes the sand tube; Quartz sand height h in the sand tube is the elevation in order to adjustment steel bracket top, and the height h of described quartz sand determines according to the difference in height of steel bracket top with the continuous girder bridge bottom of being built;
Bolt hole is arranged at the bottom of second cup of sand tube, the bottom of second cup of sand tube contacts placement with the flange of steel post, the flange of the bottom of second cup and steel post is coupled together by bolt hole with bolt, thereby sand tube and steel post are coupled together;
Between two sand tubes, on the steel plate of sand tube upper end welding, gooseneck is installed along the continuous girder bridge transverse weld; Crossbeam is to be used for bearing the load that the top is transmitted, and the load that the top is transmitted is passed to the steel post that is attached thereto equably by the sand tube;
On gooseneck, along continuous girder bridge the steel longeron is installed vertically, gooseneck and steel longeron adopt i iron to make, and gooseneck adopts bolt to be connected with the steel longeron; Steel longeron and steel longeron laterally between adopt double steel plate to be connected with bolt; The technical functionality of longeron is to accept the load that the top is transmitted, and this load passed to equably is attached thereto the crossbeam that connects.
In the upper surface of steel longeron, along continuous girder bridge laterally, between two steel longerons, chock is installed, chock adopts the pine side of high-quality, adopts iron wire to bundle between chock and the steel longeron and is connected and fixed; Constituted the support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation; The technical functionality of described chock is the levelling of the thin portion of crest level, and bears the load that case beam and template transmit, and load is passed to the below equably be attached thereto the longeron that connects.
During use,, entire field fluid concrete continuous girder bridge is played a supportive role the facade assembled arrangement of the support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation along continuous girder bridge.
Above-mentioned steel pipe pile adopts φ 422x10mm steel pipe; Steel post adopts φ 377x8mm spiral steel pipe; Horizontal brace and diagonal brace adopt the 75x75x8mm angle steel; Flange is that 20mm Q235 steel plate is made; Batten plate adopts 12mm Q235 steel plate to make; Chock is the 12*14cm lumps of wood; Crossbeam is two I28a i iron; Longeron is the I28a i iron, spacing 1.3m.
The using method of support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation is as follows:
1), the flange of welding steel pile tube: burn-on the respectively flange in tape splicing hole of the upper end of first steel pipe pile 11, second steel pipe pile 12, the 3rd steel pipe pile 13 and the 4th steel pipe pile 14;
2), squeeze into steel pipe pile: squeeze into first steel pipe pile 11, second steel pipe pile 12, the 3rd steel pipe pile 13 and the 4th steel pipe pile 14 at the soft foundation scene;
3), steel bracket unit is installed: first steel post 21 of each steel bracket unit that assembles, second steel post 22, the 3rd steel post 23, the 4th steel post 24 respectively with first steel pipe pile 11, second steel pipe pile 12, the 3rd steel pipe pile 13, the 4th steel pipe pile 14 corresponding placements, a flange of the lower end welding of every steel post welds the corresponding placement of flange that specification is identical with the upper end of the steel pipe pile of squeezing into soft foundation, two flange are coupled together with bolt by bolt hole, thereby every steel post and every steel pipe pile of described each steel bracket unit are connect, just steel bracket constituent element and steel pipe pile are connect;
4), assemble the steel bracket constituent element: two or more steel bracket unit are vertically combined form the steel bracket constituent element; Specifically be that a flange that specification is identical is all welded at first steel post 21, second steel post 22, the 3rd steel post 23 of each steel bracket, the two ends of the 4th steel post 24, corresponding placement of the identical flange of the specification at the two ends of first steel post 21 of two steel bracket correspondences, second steel post 22, the 3rd steel post 23, the 4th steel post 24, two flange are coupled together with bolt by bolt hole, form the steel bracket constituent element thereby steel bracket coupled together;
5), the sand tube is installed: the bottom of second cup of sand tube contacts placement with the flange of steel post, bolt hole is arranged at the bottom of second cup of sand tube, the bottom of second cup of sand tube and the flange of steel post are coupled together by bolt hole with bolt, thereby sand tube and steel post are coupled together;
6), crossbeam is installed: between two sand tubes, on the steel plate of sand tube upper end welding, gooseneck is installed along the continuous girder bridge transverse weld;
7), longeron is installed: on gooseneck, along continuous girder bridge the steel longeron is installed vertically, gooseneck and steel longeron adopt i iron to make, and gooseneck adopts bolt to be connected with the steel longeron; Steel longeron and steel longeron laterally between adopt double steel plate to be connected with bolt;
8), chock is installed: in the upper surface of steel longeron, along continuous girder bridge laterally, between two steel longerons, chock is installed, chock adopts the pine side of high-quality, adopts iron wire to bundle between chock and the steel longeron and is connected and fixed; So far, installation be used for the support of in-situ casting concrete continuous girder bridge on soft soil foundation.
Installation after being used for the support of in-situ casting concrete continuous girder bridge on soft soil foundation, in-situ casting concrete continuous girder bridge in the above just.
Construction finishes, withdraw from the support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation, earlier the stopper of the quartzy sand hole in the bottom of the steel pipe of second cup of sand tube is extracted, emit the quartz sand in the sand tube, so, be used for the support of in-situ casting concrete continuous girder bridge on soft soil foundation and the continuous girder bridge of construction and disengage, thereby, withdraw from assembly from top to bottom.

Claims (1)

1. be used for the support of in-situ casting concrete continuous girder bridge on soft soil foundation, it is characterized in that, it is by first steel pipe pile (11), second steel pipe pile (12), the 3rd steel pipe pile (13) and the 4th steel pipe pile (14), flange; First steel post (21), second steel post (22), the 3rd steel post (23) and the 4th steel post (24); Diagonal brace, horizontal brace, sand tube, crossbeam, longeron, chock and batten plate constitute;
Being constructed as follows of each steel bracket unit: by 4 steel posts: first steel post (21), second steel post (22), the 3rd steel post (23), the 4th steel post (24), 12 diagonal braces, 8 horizontal braces and 24 batten plates are formed; Support to be welded to connect by first steel post (21), second steel post (22), the 3rd steel post (23), the 4th steel post (24) and 8 molten steel and form a cuboid framework, form the steel post at each angle on each plane of cuboid framework and molten steel and all weld a rectangle steel batten plate between supporting, steel diagonal brace of welding between the batten plate of the steel at the diagonal angle on each plane of forming the cuboid framework;
Two or more steel bracket unit are vertically combined form the steel bracket constituent element; Specifically be that a flange that specification is identical is all welded at first steel post (21), second steel post (22), the 3rd steel post (23) of each steel bracket, the two ends of the 4th steel post (24), corresponding placement of the identical flange of the specification at the two ends of first steel post (21) of two steel bracket correspondences, second steel post (22), the 3rd steel post (23), the 4th steel post (24), two flange are coupled together with bolt by bolt hole, form the steel bracket constituent element thereby steel bracket coupled together;
First steel post (21) of the nethermost steel bracket of each steel bracket unit of composition steel bracket constituent element, second steel post (22), the 3rd steel post (23), the 4th steel post (24) respectively with first steel pipe pile (11), second steel pipe pile (12), the 3rd steel pipe pile (13), the 4th steel pipe pile (14) is corresponding to be placed, a flange of the lower end welding of every steel post welds the corresponding placement of flange that specification is identical with the upper end of the steel pipe pile of squeezing into soft foundation, two flange are coupled together with bolt by bolt hole, thereby every steel post and every steel pipe pile of described each steel bracket unit are connect, steel bracket constituent element and steel pipe pile are connect;
The sand tube all is equipped with in the upper end of each steel post of the uppermost steel bracket unit of described steel bracket constituent element; Being constructed as follows of sand tube:
The bottom of first steel pipe is welded into first cup with circular steel plate, the welded top steel plate of this cup, and the steel pipe of cup is positioned at the center of this steel plate;
The bottom of the steel pipe of second larger diameter also is welded into second cup with circular steel plate, and quartzy sand hole is arranged at the bottom of the steel pipe of cup, quartzy sand hole stopper jam-pack, and packing in the steel pipe of cup highly is the quartz sand of h;
First cup steel pipe of welded top steel plate is inserted in second cup, and the bottom of first cup is positioned at highly on the quartz sand surface of h, finally constitutes the sand tube; Quartz sand height h in the sand tube is the elevation in order to adjustment steel bracket top, and the height h of described quartz sand determines according to the difference in height of steel bracket top with the continuous girder bridge bottom of being built;
Bolt hole is arranged at the bottom of second cup of sand tube, the bottom of second cup of sand tube contacts placement with the flange of steel post, the flange of the bottom of second cup and steel post is coupled together by bolt hole with bolt, thereby sand tube and steel post are coupled together;
Between two sand tubes, on the steel plate of sand tube upper end welding, gooseneck is installed along the continuous girder bridge transverse weld;
On gooseneck, along continuous girder bridge the steel longeron is installed vertically, gooseneck and steel longeron adopt i iron to make, and gooseneck adopts bolt to be connected with the steel longeron; Steel longeron and steel longeron laterally between adopt double steel plate to be connected with bolt;
In the upper surface of steel longeron, along continuous girder bridge laterally, between two steel longerons, chock is installed, chock adopts the pine side of high-quality, adopts iron wire to bundle between chock and the steel longeron and is connected and fixed; Constituted the support that is used for in-situ casting concrete continuous girder bridge on soft soil foundation.
CN2009200945655U 2009-10-22 2009-10-22 Support for soft soil foundation cast-in-place concrete continuous beam bridge CN201770942U (en)

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Cited By (7)

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CN102121233A (en) * 2011-04-20 2011-07-13 天津第三市政公路工程有限公司 Construction method of bridge cast-in-place box beam
CN102691266A (en) * 2012-06-03 2012-09-26 中交第四公路工程局有限公司 Construction method for ultrahigh combined support for bridge side span cast-in-situ section
CN103669225A (en) * 2013-12-30 2014-03-26 中铁五局(集团)有限公司 Continuous beam 0# block support and installing method
CN104831635A (en) * 2015-05-26 2015-08-12 中铁二十二局集团第三工程有限公司 Combined H-shaped steel cast-in-situ box beam support adjoining to and overpassing existing lines
CN105155431A (en) * 2015-10-22 2015-12-16 河南省公路工程局集团有限公司 Rapid repair method for three-stand-column structure bridge with damaged lateral stand columns and undamaged beam and slab structure
CN106049289A (en) * 2016-06-30 2016-10-26 中铁第四勘察设计院集团有限公司 Construction method for transforming Bailey beam temporary bridge into reinforced concrete combined permanent bridge
CN109778715A (en) * 2019-03-25 2019-05-21 中冶建工集团有限公司 Assembled support platform and its installation and removal method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102121233A (en) * 2011-04-20 2011-07-13 天津第三市政公路工程有限公司 Construction method of bridge cast-in-place box beam
CN102691266A (en) * 2012-06-03 2012-09-26 中交第四公路工程局有限公司 Construction method for ultrahigh combined support for bridge side span cast-in-situ section
CN102691266B (en) * 2012-06-03 2014-04-16 中交第四公路工程局有限公司 Construction method for ultrahigh combined support for bridge side span cast-in-situ section
CN103669225A (en) * 2013-12-30 2014-03-26 中铁五局(集团)有限公司 Continuous beam 0# block support and installing method
CN104831635A (en) * 2015-05-26 2015-08-12 中铁二十二局集团第三工程有限公司 Combined H-shaped steel cast-in-situ box beam support adjoining to and overpassing existing lines
CN105155431A (en) * 2015-10-22 2015-12-16 河南省公路工程局集团有限公司 Rapid repair method for three-stand-column structure bridge with damaged lateral stand columns and undamaged beam and slab structure
CN106049289A (en) * 2016-06-30 2016-10-26 中铁第四勘察设计院集团有限公司 Construction method for transforming Bailey beam temporary bridge into reinforced concrete combined permanent bridge
CN106049289B (en) * 2016-06-30 2018-01-16 中铁第四勘察设计院集团有限公司 Bailey beam make-shift bridge transform the construction method of steel reinforced concrete combination permanent bridge as
CN109778715A (en) * 2019-03-25 2019-05-21 中冶建工集团有限公司 Assembled support platform and its installation and removal method

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