CN106368127A - Whole support landing device and method for box girder support - Google Patents

Whole support landing device and method for box girder support Download PDF

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Publication number
CN106368127A
CN106368127A CN201610980449.8A CN201610980449A CN106368127A CN 106368127 A CN106368127 A CN 106368127A CN 201610980449 A CN201610980449 A CN 201610980449A CN 106368127 A CN106368127 A CN 106368127A
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CN
China
Prior art keywords
suspension rod
separate type
type nut
double
cross member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610980449.8A
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Chinese (zh)
Inventor
唐璜
王健
雷进发
于长波
唐丹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Civil Engineering Co Ltd of CREC
Sixth Engineering Co Ltd of Shanghai Civil Engineering Co Ltd of CREC
Original Assignee
Shanghai Civil Engineering Co Ltd of CREC
Sixth Engineering Co Ltd of Shanghai Civil Engineering Co Ltd of CREC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Civil Engineering Co Ltd of CREC, Sixth Engineering Co Ltd of Shanghai Civil Engineering Co Ltd of CREC filed Critical Shanghai Civil Engineering Co Ltd of CREC
Priority to CN201610980449.8A priority Critical patent/CN106368127A/en
Publication of CN106368127A publication Critical patent/CN106368127A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges

Abstract

The invention relates to the technical field of bridge construction, in particular to a support landing device of a box girder support. The support landing device is suitable for cast-in-place box girder bailey falsework construction and comprises support landing sand cylinders, a bottom crossbeam, bailey supports, upper supporting beams, connecting panels, suspenders and separating nuts. The support landing sand cylinders are arranged on the lower portion of the bottom crossbeam, the bailey supports are arranged on the upper portion of the bottom crossbeam, the bottoms of the bailey supports are connected with the bottom crossbeam, the bailey supports are arranged below a concrete bridge body, the suspenders perpendicularly penetrate into bridge body preformed holes, the upper ends of the suspenders are connected with the upper supporting beams through the separating nuts, the middle portions of the suspenders are fixed to the connecting panels through the separating nuts and double-layer steel cushion plates, the bottoms of the suspenders are fixed to the bottom crossbeam through double nuts, mechanical jacks are arranged above the concrete bridge body, and the mechanical jacks ascend and descend repeatedly to cyclically make the upper supporting beams arranged at the upper portions of the mechanical jacks reset and descend to achieve whole support landing. By the adoption of the device, safety risks can be reduced, the work efficiency can be improved, and the application and popularization value are achieved.

Description

A kind of box beam bracket integrally falls rack device and method
[technical field]
The present invention relates to technical field of bridge construction, specifically a kind of it is applied to cast-in-situ box girder shellfish thunder falsework construction Fall rack device and the method for box beam bracket.
[background technology]
With China's expanding economy, bridge construction enters the all-round developing stage." 12 " planning of country proposes To low-carbon economy transition, the construction of science of bridge building also must closely follow step.The cast-in-situ box girder frame construction technology that integrally falls exists Apply more in bridge construction both domestic and external, directly removed using crane, by surrounding more than current cast-in-situ box girder falsework system Terrain environment and Venue Operations space limit, and this construction method difficulty of construction is larger, and the safe hoisting and hanging code of serious violation, There is larger potential safety hazard, also there is a problem of that assembling and disassembling high cost, work efficiency are low, and there is the cast-in-situ box girder of certain altitude Or in space-constrained construction of cast-in-situ box-beam, there is no the support removing method of economic and reliable to be available for using for reference.
[content of the invention]
The present invention be directed to the problem that the assembling and disassembling high cost of existing Cast-in-situ Beam box beam side form, work efficiency are low, construction is difficult, There is provided that a kind of structure is simple, flexible operation, be applied to fall rack device and the method for the high box beam bracket of environmental requirement.
To achieve these goals, design a kind of box beam bracket integrally to fall rack device, the described rack device that falls includes falling frame Sand cylinder, cross member, Bailey truss, on drag beam, connect panel, suspension rod and separate type nut, described cross member bottom is provided with Frame sand cylinder, top is provided with Bailey truss, connects and be placed under concrete beam body between described Bailey truss bottom and cross member Side, concrete beam body is provided with beam body preformed hole, and suspension rod extends vertically through reserves in the hole in beam body, and the upper end of suspension rod adopts separate type Nut is connected with upper joist, is fixed on double-deck billet using separate type nut and is connected on panel in the middle part of suspension rod, the bottom of suspension rod Portion is fixed on cross member using double nut, is equipped with mechanic jacks above described concrete beam body, described mechanical jack Top repeatedly rises general who has surrendered's upper joist cycle reset that portion is provided with thereon, declines come frame of realizing integrally falling.
Described cross member adopts 56# I-steel to make, and cross member is provided with boom hole, the described hole position of boom hole with Beam body preformed hole coaxially same footpath, cross member is using double-deck billet and double nut fixed derrick bottom.
Described connection panel is made using double-deck 20mm steel plate, and described suspension rod perforation is located at joint face plate center, With the boom hole on cross member and beam body preformed hole coaxially same footpath, connect panel and fixed using double-deck billet, separate type nut In the middle part of suspension rod.
Described upper joist adopts 45# Two bors d's oeuveres I-steel, stiffened steel plates welding production, and the spacing of Two bors d's oeuveres I-steel is more than hangs The diameter of bar, so that suspension rod passes through, upper joist is using double-deck billet, separate type nut fixed derrick upper end.
Described suspension rod adopts32mm fining twisted steel makes, and the diameter of suspension rod, hangs from reselection procedure according to box beam bracket Bar is symmetrical arranged with the corner of every box beam respectively.
Described mechanic jacks are symmetricly set in suspension rod both sides 50-60cm position.
Described separate type nut is made up of bayonet socket and the collar, bayonet socket semicircular in shape, two bayonet sockets correspondence connect formation around The annular space of suspension rod, bayonet socket is respectively arranged at two ends with the collar, bayonet socket fixed derrick, and by the collar locking at two ends, loosens set Ring is in order to separate nut.
Integrally the fall installation method of rack device of above-mentioned box beam bracket specifically comprises the following steps that
1) fall and suspension rod be through at beam body preformed hole and cross member boom hole before frame, suspension rod bottom using double-deck billet, join Set double nut and cross member fixation;
2) vertically it is through at connecting panel above suspension rod, drops down onto beam face, double-deck billet is installed on connecting panel, and leads to Cross bottom separate type nut to fix;
3) mechanic jacks are installed on beam face in suspension rod left and right sides 50-60cm positional symmetry;
4) finally upper joist is vertically through at suspension rod upper end, drops down onto on jack, completing all to fall sets up standby installation simultaneously Checked.
A kind of construction method of the rack device that integrally fallen using above-mentioned box beam bracket, the concrete steps of described construction method As follows:
1) with mechanic jacks, pop-up back is risen to maximum height, tighten the separate type nut stress on top, under loosening The separate type nut collar in portion makes it not stress;
2) the frame sand cylinder that will fall unloads sand and falls frame, the now separate type nut stress on top, and mechanic jacks will by upper joist Whole box beam bracket suspention, removes frame sand cylinder and support;
3) mechanic jacks are dropped to minimum altitude, now unclamp the separate type nut on top, tighten the separation of bottom Formula nut makes its stress;
4) mechanic jacks rise to maximum height, upper joist and top separate type nut are resetted, tightens the separation on top Formula nut, unclamps the separate type nut of bottom, makes the separate type nut stress on top, and mechanic jacks again will by upper joist Whole box beam bracket suspention;
5) mechanic jacks are dropped to minimum altitude, repeat 3,4,5 steps and circulate frame successively to pier bottom, hand fit Mechanical removal falsework system;
6) when the frame height that falls is more than single length of boom, when needing spreading, separate type nut separates under the state of not stressing, Connector for spreading passes through separate type nut, you can realize the frame that falls of bigger height.
The present invention compared with the existing technology, has an advantage in that: this device using cross member, on drag beam, suspension rod and separate type So that the frame that integrally falls during jack stress, operation principle is simple, and easy to operate, stress is clear, leads to for the frame structure that falls of nut composition Cross this device and Bailey truss and template are fallen to pier bottom working depth, circulation successively is finally reached the purpose of frame, removes mould Board mount, work progress is safe and reliable, solves the problems, such as around terrain environment and narrow field constructional difficulties, and improves Work efficiency, ensure that the duration, save construction cost, there is higher application and promotional value.
[brief description]
Fig. 1 is the structural facades figure after the installation of the present invention;
Fig. 2 is the axial sectional diagrammatical view illustration of separate type nut in the present invention;
Fig. 3 is the side view of separate type nut in the present invention;
Fig. 4 is the structure expanded schematic diagram of separate type nut in the present invention;
Fig. 5 is that the frame sand cylinder that falls of the present invention unloads sand and falls frame schematic diagram;
Fig. 6 is the partial schematic diagram of mechanic jacks during decline frame of the present invention;
Fig. 7 is the partial schematic diagram of mechanic jacks during the upper joist reset of the present invention;
In figure: 1. frame sand cylinder 2. supporting double nut 3. cross member, the 4. Bailey truss 5. beam body preformed hole 6. that falls connects Beam 11. suspension rod 12. top separate type spiral shell is dragged in firm backing plate 9. mechanic jacks 10. of panel 7. bottom separate type nut 8. Female 13. bayonet socket 14. collar.
[specific embodiment]
The invention will be further described below in conjunction with the accompanying drawings, for the structure of this device and the principle people professional to this It is very clearly, be appreciated that completely.Specific embodiment described herein only in order to explain the present invention, is not used to limit Determine the present invention.
Box beam bracket integrally falls rack device referring to Fig. 1, including frame sand cylinder 1, supporting double nut 2, cross member 3, the Bei Leizhi of falling Frame 4, beam body preformed hole 5, connect panel 6, bottom separate type nut 7, firm backing plate 8, mechanic jacks 9, on drag beam 10, suspension rod 11st, top separate type nut 12.Cross member bottom is provided with frame sand cylinder, and top is provided with Bailey truss, Bailey truss bottom and bottom Connect between crossbeam and be placed in below concrete beam body, concrete beam body is provided with beam body preformed hole, suspension rod extends vertically through in beam Body reserves in the hole, and the upper end of suspension rod is connected with upper joist using separate type nut, adopts separate type nut and bilayer in the middle part of suspension rod Billet is fixed on connection panel, and the bottom of suspension rod is fixed on cross member using double nut, is equipped with above concrete beam body Mechanic jacks, mechanic jacks repeatedly rise general who has surrendered's upper joist cycle reset that portion is provided with thereon, decline come frame of realizing integrally falling.
Wherein, cross member adopts 56# I-steel to make, and cross member arranges boom hole, and hole position and beam body preformed hole are coaxially same Footpath, is used for fixed derrick bottom using double-deck billet, supporting double nut, is used for undertaking falsework system gravity;Joint face Plate is made it is therefore intended that increasing and beam body contact surface, strengthen rigidity using double-deck 20mm steel plate, prevents from damaging beam face coagulation Soil;Suspension rod perforation is located at joint face plate center, and cross member boom hole, beam body preformed hole coaxially same footpath, using double-deck billet, In the middle part of separate type nut fixed derrick;Upper joist adopts 45# Two bors d's oeuveres I-steel, stiffened steel plates welding production, between Two bors d's oeuveres I-steel Away from slightly larger than suspension rod diameter, so that suspension rod passes through, using double-deck billet, separate type nut fixed derrick upper end;Suspension rod Using32mm fining twisted steel makes, suspension rod diameter according to falsework from reselection procedure, symmetrical at 4 jiaos of every width box beam Setting;Mechanic jacks are symmetricly set in suspension rod both sides 50-60cm, are conducted oneself with dignity according to falsework, select mechanic jacks model, It is to be easy to control undercarriage stroke and speed using mechanic jacks purpose.
Separate type nut is made up of bayonet socket 13 and the collar 14, and referring to Fig. 2 to Fig. 4, bayonet socket semicircular in shape, two bayonet sockets correspond to phase Connect the annular space being formed around suspension rod, bayonet socket two ends are respectively provided with the collar, bayonet socket fixed derrick, and by the collar lock at two ends Tightly, the loosening collar can by nut separately.
The present invention first with the frame sand cylinder that falls strutting system is carried out overall fall frame 30cm, then make thousand using this device Integrally fall during the stress of jin top frame, raises jack and circulates the purpose being finally reached frame successively, box girder webs complete when not stressing After possessing form removal condition, install rack device by position shown in Fig. 1, the installation method of this device is:
1. fall and suspension rod is through at beam body preformed hole, cross member boom hole before frame, bottom is using double-deck billet, supporting pair of spiral shell Mother and cross member fixation;
2. vertically it is through at connecting panel above suspension rod, drops down onto beam face, double-deck billet is installed on connecting panel, and leads to Cross bottom separate type nut to fix;
3. mechanic jacks are installed on beam face in suspension rod left and right sides 50-60cm positional symmetry;
4. finally upper joist is vertically through at suspension rod upper end, drops down onto on jack, completing all to fall sets up standby installation simultaneously Checked.
The rack device that falls is completed and carries out Specific construction after carrying out safety inspection, and its construction method specifically comprises the following steps that
1) with mechanic jacks, pop-up back is risen to maximum height, tighten the separate type nut stress on top, under loosening The separate type nut collar in portion makes it not stress;
2) the frame sand cylinder that will fall unloads sand and falls frame, the now separate type nut stress on top, and mechanic jacks will by upper joist Whole box beam bracket suspention, removes frame sand cylinder and support, sees Fig. 5;
3) mechanic jacks are dropped to minimum altitude, now unclamp the separate type nut on top, tighten the separation of bottom Formula nut makes its stress, sees Fig. 6;
4) mechanic jacks rise to maximum height, upper joist and top separate type nut are resetted, tightens the separation on top Formula nut, unclamps the separate type nut of bottom, makes the separate type nut stress on top, and mechanic jacks again will by upper joist Whole box beam bracket suspention, is shown in Fig. 7;
5) mechanic jacks are dropped to minimum altitude, repeat 3,4,5 steps and circulate frame successively to pier bottom, hand fit Mechanical removal falsework system;
6) when the frame height that falls is more than single length of boom, when needing spreading, separate type nut separates under the state of not stressing, Connector for spreading passes through separate type nut, you can realize the frame that falls of bigger height.
This device and Kunming ring 2-in-1 same No. 1 spy in section ancient city of Hunan Road is successfully applied to using the construction method of this device Bridge waters highway double width bridge cast-in-situ box-beam construction, not only increases work efficiency, ensure that the duration it is ensured that work progress Safe and reliable, there is higher application and promotional value.

Claims (9)

1. a kind of box beam bracket integrally falls rack device it is characterised in that the described rack device that falls includes falling frame sand cylinder, cross member, shellfish Thunder support, on drag beam, connect panel, suspension rod and separate type nut, described cross member bottom is provided with frame sand cylinder, and top is provided with Bailey truss, connects between described Bailey truss bottom and cross member and is placed in below concrete beam body, on concrete beam body It is provided with beam body preformed hole, suspension rod extends vertically through reserves in the hole in beam body, and the upper end of suspension rod adopts separate type nut with upper joist even Connect, be fixed on double-deck billet using separate type nut in the middle part of suspension rod and be connected on panel, the bottom of suspension rod adopts double nut solid On cross member, above described concrete beam body, be equipped with mechanic jacks, described mechanic jacks repeatedly rise general who has surrendered its Upper joist cycle reset that top is provided with, decline to realize overall fall frame.
2. a kind of box beam bracket integrally falls rack device it is characterised in that described cross member adopts 56# as claimed in claim 1 I-steel makes, and cross member is provided with boom hole, the described hole position of boom hole and beam body preformed hole coaxially same footpath, and cross member is adopted With double-deck billet and double nut fixed derrick bottom.
3. a kind of box beam bracket integrally falls rack device it is characterised in that described connection panel adopts as claimed in claim 1 Double-deck 20mm steel plate makes, and the boom hole that described suspension rod perforation is located on joint face plate center, with cross member and beam body are pre- Box out coaxially same footpath, connect panel using double-deck billet, separate type nut fixed derrick in the middle part of.
4. a kind of box beam bracket integrally falls rack device it is characterised in that described upper joist adopts 45# as claimed in claim 1 Two bors d's oeuveres I-steel, stiffened steel plates welding production, the spacing of Two bors d's oeuveres I-steel is more than the diameter of suspension rod, so that suspension rod passes through, Upper joist is using double-deck billet, separate type nut fixed derrick upper end.
5. a kind of box beam bracket integrally falls rack device it is characterised in that described suspension rod adopts as claimed in claim 1Fining twisted steel make, the diameter of suspension rod according to box beam bracket from reselection procedure, suspension rod respectively with the corner of every box beam at It is symmetrical arranged.
6. a kind of box beam bracket integrally falls rack device it is characterised in that described mechanic jacks pair as claimed in claim 1 Claim to be arranged at suspension rod both sides 50-60cm position.
7. as claimed in claim 1 a kind of box beam bracket integrally fall rack device it is characterised in that described separate type nut by Bayonet socket and collar composition, bayonet socket semicircular in shape, two bayonet socket correspondences connect formation around the annular space of suspension rod, and bayonet socket two ends are respectively It is provided with the collar, bayonet socket fixed derrick, and by the collar locking at two ends, the loosening collar is in order to separate nut.
8. a kind of using box beam bracket as claimed in claim 1 integrally fall rack device installation method it is characterised in that described The specifically comprising the following steps that of installation method
1) fall and suspension rod is through at beam body preformed hole and cross member boom hole before frame, suspension rod bottom is using double-deck billet, supporting double Nut and cross member fixation;
2) vertically it is through at connecting panel above suspension rod, drop down onto beam face, on connecting panel, double-deck billet is installed, and under passing through Portion's separate type nut is fixed;
3) mechanic jacks are installed on beam face in suspension rod left and right sides 50-60cm positional symmetry;
4) finally upper joist is vertically through at suspension rod upper end, drops down onto on jack, completing all falls sets up and standby install and carry out Check.
9. a kind of using box beam bracket as claimed in claim 1 integrally fall rack device construction method it is characterised in that described The specifically comprising the following steps that of construction method
1) with mechanic jacks, pop-up back is risen to maximum height, tighten the separate type nut stress on top, loosening bottom The separate type nut collar makes it not stress;
2) the frame sand cylinder that will fall unloads sand and falls frame, the now separate type nut stress on top, and mechanic jacks will be whole by upper joist Box beam bracket suspends in midair, removes frame sand cylinder and support;
3) mechanic jacks are dropped to minimum altitude, now unclamp the separate type nut on top, tighten the separate type spiral shell of bottom Mother makes its stress;
4) mechanic jacks rise to maximum height, upper joist and top separate type nut are resetted, tightens the separate type spiral shell on top Mother, unclamps the separate type nut of bottom, makes the separate type nut stress on top, and mechanic jacks again will be whole by upper joist Box beam bracket suspends in midair;
5) mechanic jacks are dropped to minimum altitude, repeat 3,4,5 steps and circulate frame successively to pier bottom, hand fit's machinery Form removal strutting system;
6) when the frame height that falls is more than single length of boom, when needing spreading, separate type nut separately, is used under the state of not stressing The connector of spreading passes through separate type nut, you can realize the frame that falls of bigger height.
CN201610980449.8A 2016-11-08 2016-11-08 Whole support landing device and method for box girder support Pending CN106368127A (en)

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Application Number Priority Date Filing Date Title
CN201610980449.8A CN106368127A (en) 2016-11-08 2016-11-08 Whole support landing device and method for box girder support

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Application Number Priority Date Filing Date Title
CN201610980449.8A CN106368127A (en) 2016-11-08 2016-11-08 Whole support landing device and method for box girder support

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106948276A (en) * 2017-05-15 2017-07-14 中国十七冶集团有限公司 A kind of method of cast-in-place box beam bracket integral demounting
CN107201727A (en) * 2017-07-25 2017-09-26 利越集团有限公司 Cross a river Continuous box girder with cast-in-place cantilever method construction environmental-protection engineering method
CN107892238A (en) * 2017-11-11 2018-04-10 中铁三局集团华东建设有限公司 A kind of lowering equipment and method for Bailey beam
CN109468937A (en) * 2018-12-28 2019-03-15 中铁十局集团第二工程有限公司 Bridge and its method for dismounting with falsework
CN110374006A (en) * 2019-07-22 2019-10-25 中铁大桥局集团有限公司 A kind of construction method for removing space opposite sex large-tonnage steel beam bracket
CN111749135A (en) * 2020-05-30 2020-10-09 中交路桥建设有限公司 Integral dismantling method for 0# block bracket of continuous rigid frame bridge

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CN102080357A (en) * 2011-01-06 2011-06-01 中铁二十四局集团浙江工程有限公司 Integrated beam-falling device and method for steel pipe pier bailey beam cast-in-place bracket
CN204023414U (en) * 2014-07-23 2014-12-17 中建三局集团有限公司 The few fulcrum support entirety of a kind of novel large falls rack device
CN204803765U (en) * 2015-06-26 2015-11-25 中国中铁航空港建设集团有限公司 Cast -in -place continuous case roof beam of high mound bridge whereabouts device
CN106012852A (en) * 2016-06-15 2016-10-12 江苏燕宁建设工程有限公司 Construction method for overall support removal
CN206408527U (en) * 2016-11-08 2017-08-15 中铁上海工程局集团有限公司 A kind of box beam bracket integrally falls rack device

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Publication number Priority date Publication date Assignee Title
JPH11172627A (en) * 1997-12-16 1999-06-29 Ishikawajima Harima Heavy Ind Co Ltd Method and device for sending out variable cross section girder
CN102080357A (en) * 2011-01-06 2011-06-01 中铁二十四局集团浙江工程有限公司 Integrated beam-falling device and method for steel pipe pier bailey beam cast-in-place bracket
CN204023414U (en) * 2014-07-23 2014-12-17 中建三局集团有限公司 The few fulcrum support entirety of a kind of novel large falls rack device
CN204803765U (en) * 2015-06-26 2015-11-25 中国中铁航空港建设集团有限公司 Cast -in -place continuous case roof beam of high mound bridge whereabouts device
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106948276A (en) * 2017-05-15 2017-07-14 中国十七冶集团有限公司 A kind of method of cast-in-place box beam bracket integral demounting
CN107201727A (en) * 2017-07-25 2017-09-26 利越集团有限公司 Cross a river Continuous box girder with cast-in-place cantilever method construction environmental-protection engineering method
CN107892238A (en) * 2017-11-11 2018-04-10 中铁三局集团华东建设有限公司 A kind of lowering equipment and method for Bailey beam
CN107892238B (en) * 2017-11-11 2019-10-22 中铁三局集团华东建设有限公司 A kind of lowering equipment and method for Bailey beam
CN109468937A (en) * 2018-12-28 2019-03-15 中铁十局集团第二工程有限公司 Bridge and its method for dismounting with falsework
CN110374006A (en) * 2019-07-22 2019-10-25 中铁大桥局集团有限公司 A kind of construction method for removing space opposite sex large-tonnage steel beam bracket
CN110374006B (en) * 2019-07-22 2021-08-10 中铁大桥局集团有限公司 Construction method for dismantling space anisotropic large-tonnage steel beam bracket
CN111749135A (en) * 2020-05-30 2020-10-09 中交路桥建设有限公司 Integral dismantling method for 0# block bracket of continuous rigid frame bridge

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