CN103924513B - Telescopic device of bridge steel cover plate - Google Patents

Telescopic device of bridge steel cover plate Download PDF

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Publication number
CN103924513B
CN103924513B CN201410166704.6A CN201410166704A CN103924513B CN 103924513 B CN103924513 B CN 103924513B CN 201410166704 A CN201410166704 A CN 201410166704A CN 103924513 B CN103924513 B CN 103924513B
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China
Prior art keywords
bearing beam
cover plate
shrinkage joint
steel
seam
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Expired - Fee Related
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CN201410166704.6A
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Chinese (zh)
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CN103924513A (en
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鲁应慧
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Lu Yinghui
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Individual
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Publication of CN103924513B publication Critical patent/CN103924513B/en
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Abstract

A kind of Telescopic device of bridge steel cover plate, multipair location anchor slab is provided with in the both sides at shrinkage joint, all weld with anchor bar, first bearing beam and the second bearing beam are located at the both sides at shrinkage joint on abutment or beam body respectively, and be welded and fixed with one end of location anchor slab, the top of the first bearing beam be welded and fixed across the bottom surface of stitch cover plate, the top of the second bearing beam and across the bottom movable contact stitching cover plate; Be provided with the steel bomb body bridge length direction-agile shape between first bearing beam and the second bearing beam, steel bomb body is fixedly connected with the second bearing beam with the first bearing beam respectively at the two ends in bridge length direction.Across seam cover plate under vehicle-mounted impact, structure stress is directly perceived, simple, safe and reasonable.Jump car phenomenon significantly better than existing stretching device.Ensure that this device can be used safely under various metamorphosis; Between beam seam place beam body, power transmission is less, and steel bomb body is that waterproof construction provides support, and installs simple, fast and easy.

Description

Telescopic device of bridge steel cover plate
Technical field
The present invention relates to bridge construction field, is a kind of linkage of bridge expanssion joint specifically.
Background technology
In prior art, bridge expanssion joint place is all provided with stretching device, some defects of these stretching devices existence all in various degree, a large amount of Maurer expansion installation used at present, easy laying dust, card stone in its seam, jump car obviously, water proof rubber easily departs from and leaks, beam seam both sides concrete is subject to Vehicular impact because jumping car, very easily damages.
Summary of the invention
Technical problem to be solved by this invention is under the prerequisite ensureing stretching device telescopicing performance, provides a kind of Telescopic device of bridge steel cover plate, solves jumping car, the waterproof problem of stretching device.
Described Telescopic device of bridge steel cover plate, anchor bar is embedded with in the both sides, shrinkage joint of abutment or beam body, be equipped with steel fibrous concrete on the shrinkage joint of abutment or beam body, it is characterized in that: the described stretching device be installed on above shrinkage joint comprises across seam cover plate, location anchor slab, the first bearing beam, the second bearing beam and steel bomb body;
Described location anchor slab is provided with multipair in the both sides at shrinkage joint, all weld with anchor bar, described first bearing beam and the second bearing beam are located at the both sides at shrinkage joint on abutment or beam body respectively, and it is all parallel with shrinkage joint, being welded and fixed with one end of location anchor slab respectively away from side, shrinkage joint at the first bearing beam and the second bearing beam, top and the described bottom surface across stitching cover plate of described first bearing beam are welded and fixed, the top of described second bearing beam is provided with described across stitching the parallel platform of cover plate, and across the bottom movable contact stitching cover plate;
Be provided with the steel bomb body bridge length direction-agile shape between described first bearing beam and the second bearing beam, described steel bomb body is fixedly connected with described second bearing beam with described first bearing beam respectively at the two ends in bridge length direction.
Adopt following scheme when shrinkage joint is less than or equal to 160mm: relatively described second bearing beam of described first bearing beam is arranged at the direction to the car side of road, be provided with in the outside of described the first bearing beam across seam cover plate the anchoring spring that spring force is vertical direction.
Following scheme is adopted: what relatively described second bearing beam of described first bearing beam was arranged at road goes to side, car direction when shrinkage joint is greater than 160mm, the anchoring spring that spring force is vertical direction is provided with in the outside of described the first bearing beam across seam cover plate, be equipped with across above seam cover plate the leveling cover plate that thickness is less than or equal to 12mm described, described leveling cover plate is located at above the second bearing beam close to the one end at shrinkage joint, the relative other end in direction to the car side away from shrinkage joint.
Now, described leveling cover plate is provided with in the position, one end 1/7 ~ 1/3 of distance direction to the car side the anchoring spring that spring force is vertical direction.
A kind of embodiment of steel bomb body, described steel bomb body is provided with one or more, and the shape of cross section of its connector is axisymmetric two parts, and every part is the solder side at two ends and the oblique joint face at middle part, solder side is parallel with the first bearing beam, and oblique joint face is connected with the oblique obtuse angle of solder side.
At the top of described steel bomb body and be describedly provided with flashing member across stitching between cover plate.
The present invention has following beneficial effect:
1, multiple functional, be well positioned to meet beam body and stretch and other deformation requirements, drive a vehicle comfortable, draining is unobstructed, and waterproof is tight; Shrinkage joint can not card stone, laying dust, and good water-proof effect, therefore can not because of the infringement bridge that leaks;
2, structure is simple, and fabrication and installation are convenient, and maintenance is simple and easy, durable in use;
3, be static determinacy primary structure member across seam cover plate, under vehicle-mounted impact, structure stress is directly perceived, simple, safe and reasonable.
4, make use of as down train feature: compared with girder seam device across seam cover plate and the reverse leveling cover plate compared with crossbeam seam device, at the steep bank of the less discrepancy in elevation (≤12mm) formed along direction of traffic, driving comfort level can not be affected.And jump car phenomenon significantly better than existing stretching device.
5, across seam cover plate fixed end be elasticity anchoring: a, ensure that the various metamorphosis of this device beyond beam body dilatation under can use safely; Between b, beam seam place beam body, power transmission is less, thus does not affect the stressed safety of beam body itself.
6, cover plate underbeam seam size can be controlled, thus ensure that cover plate stressed at last and controlled;
7, a, steel bomb body are that waterproof construction provides support, and b, in advance this device can be connected into entirety, thus make installation simple, fast and easy.
Accompanying drawing explanation
Fig. 1 is below 160mm (containing) beam seam stretching device embodiment profile,
Fig. 2 is the top view of Fig. 1,
Fig. 3 is that 160mm stitches stretching device embodiment profile with upper beam,
Fig. 4 is the top view of Fig. 3,
Fig. 5 is the floor map across seam cover plate and leveling cover plate.
In figure: 1-deck paving, 2-anticracking steel mesh reinforcement, 3-steel fibrous concrete, 4-location anchor slab, 5-anchoring spring, 6-across seam cover plate, 7-the first bearing beam, 8-flashing member, 9-steel bomb body, the 10-the second bearing beam, 11-leveling cover plate, 12-abutment or beam body, 13-anchor bar, 14-oblique joint face.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described: be shrinkage joint stretching device structure when the less shrinkage joint of below 160mm as shown in Fig. 1,2, and the described stretching device be installed on above shrinkage joint comprises across seam cover plate 6, location anchor slab 4, first bearing beam 7, second bearing beam 10 and steel bomb body 9; Described location anchor slab 4 is provided with multipair in the both sides at shrinkage joint, all weld with anchor bar 13, described first bearing beam 7 and the second bearing beam 10 are located at the both sides at shrinkage joint on abutment or beam body respectively, and it is all parallel with shrinkage joint, being welded and fixed with one end of location anchor slab 4 respectively away from side, shrinkage joint at the first bearing beam 7 and the second bearing beam 10, top and the described bottom surface across stitching cover plate 6 of described first bearing beam 7 are welded and fixed, the top of described second bearing beam 10 is provided with described across stitching the parallel platform of cover plate 6, and across the bottom movable contact stitching cover plate 6; Be provided with the steel bomb body 9 bridge length direction-agile shape between described first bearing beam 7 and the second bearing beam 10, described steel bomb body is fixedly connected with described second bearing beam 10 with described first bearing beam 7 respectively at the two ends in bridge length direction.
Relatively described second bearing beam 10 of described first bearing beam 7 is arranged at the direction to the car side of road, is provided with in the outside of described the first bearing beam 7 across seam cover plate 6 the anchoring spring 5 that spring force is vertical direction.
A kind of constructive embodiment of steel bomb body, described steel bomb body 9 is provided with one or more, the shape of cross section of its connector is axisymmetric two parts, every part is the solder side at two ends and the oblique joint face 14 at middle part, solder side is parallel with the first bearing beam 7, and oblique joint face 14 is connected with the oblique obtuse angle of solder side.At the top of described steel bomb body 9 and be describedly provided with flashing member 8 across stitching between cover plate 6.
When shrinkage joint is greater than 160mm, as shown in Figure 3,4, what relatively described second bearing beam 10 of described first bearing beam 7 was arranged at road goes to side, car direction, the anchoring spring 5 that spring force is vertical direction is provided with in the outside of described the first bearing beam 7 across seam cover plate 6, be equipped with across above seam cover plate 6 the leveling cover plate 11 that thickness is less than or equal to 12mm described, described leveling cover plate 11 is located at above the second bearing beam 10 close to the one end at shrinkage joint, the relative other end in direction to the car side away from shrinkage joint.
Now, described leveling cover plate 11 is provided with in the position, one end 1/7 ~ 1/3 of distance direction to the car side the anchoring spring 5 that spring force is vertical direction.
When shrinkage joint is larger, as Fig. 5, be provided with staggered comb seam across seam cover plate and leveling cover plate, prevent the distortion at width.
Illustrate work progress below:
1, completed by a complete set of stretching device in factory, comparatively bigger device when shrinkage joint is more than 160mm separately will make across seam cover plate and leveling cover plate, in-site installation.Namely, after all subitem completes across seam cover plate, leveling cover plate, anchoring spring, control seam load anchoring composite member, steel bomb body waterproof construction support member and flashing member etc., become a whole set of to equip in factory-assembled, be then transported to scene, wait to be installed.
2, digging in-situ notch: the notch namely excavating respective depth and width in both sides, beam body gap, checks and supplement pre-buried anchor bar.Clean out dregs in beam seam and notch; Check beam end of body preset clearance size (if do not met the requirement of beam body elongation, a part of beam body must be cut).Check the corresponding relation (transformation of old seam needs bar planting, first can extend compression apparatus, rear steel planting) of embedded bar position and stretching device anchor slab, Site Welding or cutting, be linked to be the one whole section stretching device consistent with notch size by segmentation finished product.
3, with soft material filling beam seam, and in stretching device face width (not containing location anchor slab) scope, padding below stretching device also compresses soft material (cystosepiment, shoddy cotton, knitting bagged sandy soil etc.).
4, package unit is put into notch, adjust linear and elevation, and anchor slab is welded anchoring and location with embedded bar, then by embedded bar and location anchor slab firm welding.
5, colligation ater-casting anti-cracking concrete steel mesh reinforcement.Under checking stretching device side bar, whether padding is tight for soft material; First use gap under high-grade cement mortar (in right amount) shutoff side bar, in case concrete enters inside beam seam and stretching device, when reaching suitable intensity etc. cement mortar, pour into a mould ater-casting concrete by specification procedure.Spread anticracking steel mesh reinforcement, concreting.Can come into operation after concrete setting.
Attention:
1. stretching device is in transport and must be steady, light and slow when getting on or off the bus, and arbitrarily must not lose and put, clashes into or unevenly to stack.To prevent from damaging component or impact use planeness because of shock.
2. the installation of two-direction road deck expansion installation should arrange a joint, by weld after installation from knick point.
3. must adopt suitable firm method, during guarantee ater-casting concrete casting, concrete could not enter " beam seam " and " shrinkage joint " the inside, and suggestion first uses high-grade cement mortar (appropriate! ) gap under shutoff side bar, when reaching suitable intensity etc. cement mortar, by specification procedure cast ater-casting concrete.
4. anchor slab and embedded bar or bar planting must have enough weld lengths, and concrete welding position suitably can adjust according to field condition.
5. necessary bar planting installed by the stretching device of old seam transformation, and bar planting length must not be less than 8 centimetres.
6. responsible measures must be taked when pouring into a mould ater-casting concrete to ensure, and concrete does not water stretching device surface, to ensure cleaning and the presentation quality of product.

Claims (4)

1. a Telescopic device of bridge steel cover plate, anchor bar (13) is embedded with in the both sides, shrinkage joint of abutment or beam body, be equipped with steel fibrous concrete (3) on the shrinkage joint of abutment or beam body, it is characterized in that: the described stretching device be installed on above shrinkage joint comprises across seam cover plate (6), location anchor slab (4), the first bearing beam (7), the second bearing beam (10) and steel bomb body (9);
Described location anchor slab (4) is provided with multipair in the both sides at shrinkage joint, all weld with anchor bar (13), described first bearing beam (7) and the second bearing beam (10) are located at the both sides at shrinkage joint on abutment or beam body respectively, and it is all parallel with shrinkage joint, being welded and fixed with one end of location anchor slab (4) respectively away from side, shrinkage joint at the first bearing beam (7) and the second bearing beam (10), top and the described bottom surface across stitching cover plate (6) of described first bearing beam (7) are welded and fixed, the top of described second bearing beam (10) is provided with described across stitching the parallel platform of cover plate (6), with across the bottom movable contact stitching cover plate (6),
Be provided with the steel bomb body (9) bridge length direction-agile shape between described first bearing beam (7) and the second bearing beam (10), described steel bomb body is fixedly connected with described second bearing beam (10) with described first bearing beam (7) respectively at the two ends in bridge length direction;
Described steel bomb body (9) is provided with one or more, the shape of cross section of its connector is axisymmetric two parts, every part is the solder side at two ends and the oblique joint face (14) at middle part, solder side is parallel with the first bearing beam (7), and oblique joint face (14) is connected with the oblique obtuse angle of solder side;
At the top of described steel bomb body (9) and be describedly provided with flashing member (8) across stitching between cover plate (6).
2. Telescopic device of bridge steel cover plate according to claim 1, it is characterized in that: relatively described second bearing beam (10) of described first bearing beam (7) is arranged at the direction to the car side of road, be provided with in the outside of described the first bearing beam (7) across seam cover plate (6) the anchoring spring (5) that spring force is vertical direction.
3. Telescopic device of bridge steel cover plate according to claim 1, it is characterized in that: what relatively described second bearing beam (10) of described first bearing beam (7) was arranged at road goes to side, car direction, the anchoring spring (5) that spring force is vertical direction is provided with in the outside of described the first bearing beam (7) across seam cover plate (6), at the described leveling cover plate (11) across being equipped with thickness above seam cover plate (6) and being less than or equal to 12mm, described leveling cover plate (11) is located at the second bearing beam (10) top close to the one end at shrinkage joint, the relative other end in direction to the car side away from shrinkage joint.
4. Telescopic device of bridge steel cover plate according to claim 3, is characterized in that: described leveling cover plate (11) is provided with in the position, one end 1/7 ~ 1/3 of distance direction to the car side the anchoring spring (5) that spring force is vertical direction.
CN201410166704.6A 2014-04-24 2014-04-24 Telescopic device of bridge steel cover plate Expired - Fee Related CN103924513B (en)

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Application Number Priority Date Filing Date Title
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CN103924513B true CN103924513B (en) 2015-12-30

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105040580A (en) * 2015-06-30 2015-11-11 中国一冶集团有限公司 Cross seam sealing steel cover plate comb tooth telescopic device for bridge and implementation method of cross seam sealing steel cover plate comb tooth telescopic device
CN105544384B (en) * 2015-11-27 2017-09-19 中铁第四勘察设计院集团有限公司 Modularization multi-directional deflection cover-plate type retractor device and bridge
CN107299591A (en) * 2017-09-04 2017-10-27 中国建筑第七工程局有限公司 A kind of non-bolt corrugated sheet bridge extension joint
CN109137726A (en) * 2018-09-28 2019-01-04 苏州同尚工程设计咨询有限公司 A kind of expanded joint structure and its implementation method suitable for bridge
CN110886210A (en) * 2019-12-16 2020-03-17 内江师范学院 Bridge expansion joint width adjusting device

Citations (6)

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Publication number Priority date Publication date Assignee Title
CN1273306A (en) * 1999-10-10 2000-11-15 江阴职工大学 Full-enclosed elasticjoint for road bridge
CN2880898Y (en) * 2006-02-21 2007-03-21 杨延新 Imbedded elastic expansion device
CN201517198U (en) * 2009-03-20 2010-06-30 鲁应慧 Telescopic device of bridge steel cover plate
CN101838965A (en) * 2009-03-20 2010-09-22 鲁应慧 Bridge deck steel-plastic body expansion device
CN102021884A (en) * 2009-09-16 2011-04-20 鲁应慧 Telescopic device for steel elastomer bridge deck girder body
CN203782559U (en) * 2014-04-24 2014-08-20 鲁应慧 Expansion and contraction device for bridge steel cover plate

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Publication number Priority date Publication date Assignee Title
JP2860457B2 (en) * 1995-09-18 1999-02-24 ニッタ株式会社 Bridge expansion joints

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1273306A (en) * 1999-10-10 2000-11-15 江阴职工大学 Full-enclosed elasticjoint for road bridge
CN2880898Y (en) * 2006-02-21 2007-03-21 杨延新 Imbedded elastic expansion device
CN201517198U (en) * 2009-03-20 2010-06-30 鲁应慧 Telescopic device of bridge steel cover plate
CN101838965A (en) * 2009-03-20 2010-09-22 鲁应慧 Bridge deck steel-plastic body expansion device
CN102021884A (en) * 2009-09-16 2011-04-20 鲁应慧 Telescopic device for steel elastomer bridge deck girder body
CN203782559U (en) * 2014-04-24 2014-08-20 鲁应慧 Expansion and contraction device for bridge steel cover plate

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CB03 Change of inventor or designer information

Inventor after: Luo Yanming

Inventor after: Lu Yinghui

Inventor after: Lv Guopeng

Inventor after: Wang Lin

Inventor after: Dan Yaojia

Inventor before: Lu Yinghui

COR Change of bibliographic data
TR01 Transfer of patent right

Effective date of registration: 20161024

Address after: Cuiwei cross road 430000 Hubei province Wuhan city Hanyang District No. 10

Patentee after: WUHAN HANYANG MUNICIPAL CONSTRUCTION GROUP CORPORATION

Address before: 430015 Wuhan Municipal Design Institute, Changqing Road, Jianghan District, Hubei, Wuhan 40, China

Patentee before: Lu Yinghui

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20200622

Address after: 430000 No.2, 7 / F, No.5 Decai Li, Jiang'an District, Wuhan City, Hubei Province

Patentee after: Lu Yinghui

Address before: Cuiwei cross road 430000 Hubei province Wuhan city Hanyang District No. 10

Patentee before: WUHAN HANYANG MUNICIPAL CONSTRUCTION Group Corp.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151230

Termination date: 20210424