CN103924513A - Expansion device of bridge steel cover plate - Google Patents
Expansion device of bridge steel cover plate Download PDFInfo
- Publication number
- CN103924513A CN103924513A CN201410166704.6A CN201410166704A CN103924513A CN 103924513 A CN103924513 A CN 103924513A CN 201410166704 A CN201410166704 A CN 201410166704A CN 103924513 A CN103924513 A CN 103924513A
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- China
- Prior art keywords
- bearing beam
- cover plate
- bridge
- shrinkage joint
- steel
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- 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.)
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Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 238000004873 anchoring Methods 0.000 claims description 14
- 239000004567 concrete Substances 0.000 claims description 14
- 229910000679 solder Inorganic materials 0.000 claims description 9
- 238000013459 approach Methods 0.000 claims description 3
- 230000009191 jumping Effects 0.000 abstract description 4
- 230000000007 visual effect Effects 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 239000011083 cement mortar Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 239000007779 soft material Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000029052 metamorphosis Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
Disclosed is an expansion device of a bridge steel cover plate. A plurality of pairs of positioning anchor plates are arranged on the two sides of an expansion joint and are all welded with anchor steel bars. A first bearing beam and a second bearing beam are arranged on the two sides of the expansion joint on a bridge abutment or a beam body respectively and are welded and fixedly connected with one ends of the positioning anchor plates, the top end of the first bearing beam and the bottom face of a cross-joint cover plate are welded and fixed, and the top of the second bearing beam and the bottom of the cross-joint cover plate are in movable contact. A deformable steel elastic body is arranged between the first bearing beam and the second bearing beam in the length direction of a bridge, and the two ends of the steel elastic body in the length direction of the bridge are fixedly connected with the first bearing beam and the second bearing beam respectively. Under the vehicle-mounted impact, the cross-joint cover plate is visual in structural stress, simple, safe and reasonable, the vehicle jumping phenomenon is obviously reduced compared with an existing expansion device, and it is guaranteed that the expansion device can be safely used under various deformation functions. Transmitted force between beam bodies at a beam joint is small, the steel elastic body provides support for a waterproof structure, and mounting is simple, quick and convenient.
Description
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, all some defects of existence in various degree of these stretching devices, a large amount of Maurer expansion installations that use at present, easy laying dust, card stone in its seam, jumping car is obvious, and 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 to ensure, under the prerequisite of stretching device telescopicing performance, to provide a kind of Telescopic device of bridge steel cover plate, solving jumping car, the waterproof problem of stretching device.
Described Telescopic device of bridge steel cover plate, both sides, shrinkage joint at abutment or beam body are embedded with anchor bar, on the shrinkage joint of abutment or beam body, be equipped with steel fibrous concrete, it is characterized in that: the described stretching device that is installed on top, 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 the first bearing beam and the second bearing beam are located at respectively the both sides at shrinkage joint on abutment or beam body, and all parallel with shrinkage joint, being welded and fixed with one end of location anchor slab respectively away from shrinkage joint one side of the first bearing beam and the second bearing beam, the top of described the first bearing beam and described across seam cover plate bottom surface be welded and fixed, the top of described the second bearing beam is provided with described across the parallel platform of seam cover plate, with the bottom movable contact across seam cover plate;
Between described the first bearing beam and the second bearing beam, be provided with the steel bomb body bridge length direction-agile shape, described steel bomb body is fixedly connected with described the second bearing beam with described the first bearing beam respectively at the two ends of bridge length direction.
In the time that shrinkage joint is less than or equal to 160mm, adopt following scheme: relatively described the second bearing beam of described the first bearing beam is arranged at the direction to the car side of road, described across seam cover plate the first bearing beam outside side be provided with the anchoring spring that spring force is vertical direction.
In the time that being greater than 160mm, shrinkage joint adopts following scheme: what relatively described the second bearing beam of described the first bearing beam was arranged at road goes car direction side, described across seam cover plate the first bearing beam outside side be provided with the anchoring spring that spring force is vertical direction, above stitching cover plate, be equipped with the leveling cover plate that thickness is less than or equal to 12mm described, the second bearing beam top is located in one end that described leveling cover plate approaches 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 1/7～1/3 position, one end apart from 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, the oblique joint face at the solder side that every part is two ends and 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 between across seam 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, to drive a vehicle comfortable, draining is unobstructed, and waterproof is tight; Stone, laying dust can not blocked in shrinkage joint, and good water-proof effect therefore can be because of the infringement bridge that leaks;
2, simple in structure, 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, utilized as down train feature: compared with girder seam device across seam cover plate with compared with the reverse leveling cover plate of crossbeam seam device, at the steep bank of the less discrepancy in elevation (≤12mm) forming along direction of traffic, can not affect driving comfort level.And jump car phenomenon significantly better than existing stretching device.
5, be elasticity anchoring: a, ensured that this device can use safely under beam body dilatation various metamorphosis in addition across seam cover plate fixed end; Between b, beam seam place beam body, power transmission is less, thereby do not affect the stressed safety of beam body itself.
6, can control cover plate underbeam seam size, thus ensured cover plate stressed at last and controlled;
7, a, steel bomb body are that waterproof construction provides support, and b, can in advance this device be connected into entirety, thereby make to install simple, fast and easy.
Brief description of the drawings
Fig. 1 is following (containing) beam seam of 160mm 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, the 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: stretching device structure be the less shrinkage joint of shrinkage joint below 160mm as shown in Fig. 1,2 time, and the described stretching device that is installed on top, 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 the first bearing beam 7 and the second bearing beam 10 are located at respectively the both sides at shrinkage joint on abutment or beam body, and all parallel with shrinkage joint, being welded and fixed with one end of location anchor slab 4 respectively away from shrinkage joint one side of the first bearing beam 7 and the second bearing beam 10, the top of described the first bearing beam 7 and described across seam cover plate 6 bottom surface be welded and fixed, the top of described the second bearing beam 10 is provided with described across the parallel platform of seam cover plate 6, with the bottom movable contact across seam cover plate 6; Between described the first bearing beam 7 and the second bearing beam 10, be provided with the steel bomb body 9 bridge length direction-agile shape, described steel bomb body is fixedly connected with described the second bearing beam 10 with described the first bearing beam 7 respectively at the two ends of bridge length direction.
Relatively described the second bearing beam 10 of described the first bearing beam 7 is arranged at the direction to the car side of road, described across seam cover plate 6 the first bearing beam 7 outside side be provided with the anchoring spring 5 that spring force is vertical direction.
A kind of structure 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 between across seam cover plate 6.
In the time that shrinkage joint is greater than 160mm, as shown in Figure 3,4, what relatively described the second bearing beam 10 of described the first bearing beam 7 was arranged at road goes car direction side, described across seam cover plate 6 the first bearing beam 7 outside side be provided with the anchoring spring 5 that spring force is vertical direction, above stitching cover plate 6, be equipped with the leveling cover plate 11 that thickness is less than or equal to 12mm described, the second bearing beam 10 tops are located in one end that described leveling cover plate 11 approaches 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 1/7～1/3 position, one end apart from 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 broach seam across seam cover plate and leveling cover plate, prevent the distortion at width.
Illustrate work progress below:
1, in factory, a complete set of stretching device is completed, shrinkage joint is 160mm will separately make across seam cover plate and leveling cover plate compared with bigger device when above, on-the-spot installation.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 equipment in factory-assembled, be then transported to scene, wait to be installed.
2, digging in-situ notch:, at the notch of both sides, beam body gap excavation respective depth and width, check 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, must cut a part of beam body).The corresponding relation (old seam transformation needs bar planting, can first extend compression apparatus, rear boring bar planting) that checks 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 (containing location anchor slab) scope, padding compress soft material (cystosepiment, shoddy cotton, knitting bagged sandy soil etc.) below stretching device.
4, package unit is put into notch, adjust linearity and elevation, and by anchor slab and embedded bar welding anchoring and location, then by embedded bar and location anchor slab firm welding.
5, colligation ater-casting anti-cracking concrete steel mesh reinforcement.Under inspection 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 beam seam and stretching device the inside, while reaching suitable intensity etc. cement mortar, by specification procedure cast ater-casting concrete.Spread anticracking steel mesh reinforcement, concreting.After concrete setting, can come into operation.
Attention:
1. stretching device must be steady, light and slow in the time transporting and get on or off the bus, and must not arbitrarily lose and put, clash into or uneven stacking.To prevent damaging member or impact use planeness because of shock.
2. the installation of two-way driving deck expansion installation should be arranged a joint from knick point, after installation, joint is welded.
3. must adopt suitable firm method, while ensureing 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, while 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 can suitably be adjusted according to field condition.
5. the stretching device of old seam transformation is installed necessary bar planting, and bar planting length must not be less than 8 centimetres.
6. while pouring into a mould ater-casting concrete, must take reliable measure to ensure that concrete does not water stretching device surface, to ensure cleaning and the presentation quality of product.
Claims (6)
1. a Telescopic device of bridge steel cover plate, be embedded with anchor bar (13) in the both sides, shrinkage joint of abutment or beam body, on the shrinkage joint of abutment or beam body, be equipped with steel fibrous concrete (3), it is characterized in that: the described stretching device that is installed on top, 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 the first bearing beam (7) and the second bearing beam (10) are located at respectively the both sides at shrinkage joint on abutment or beam body, and all parallel with shrinkage joint, being welded and fixed with one end of location anchor slab (4) respectively away from shrinkage joint one side of the first bearing beam (7) and the second bearing beam (10), the top of described the first bearing beam (7) and described across seam cover plate (6) bottom surface be welded and fixed, the top of described the second bearing beam (10) is provided with described across the parallel platform of seam cover plate (6), with the bottom movable contact across seam cover plate (6),
Between described the first bearing beam (7) and the second bearing beam (10), be provided with the steel bomb body (9) bridge length direction-agile shape, described steel bomb body is fixedly connected with described the second bearing beam (10) with described the first bearing beam (7) respectively at the two ends of bridge length direction.
2. Telescopic device of bridge steel cover plate according to claim 1, it is characterized in that: relatively described the second bearing beam of described the first bearing beam (7) (10) is arranged at the direction to the car side of road, described across seam cover plate (6) the first bearing beam (7) outside side be provided with 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 the second bearing beam of described the first bearing beam (7) (10) was arranged at road goes car direction side, described across seam cover plate (6) the first bearing beam (7) outside side be provided with the anchoring spring (5) that spring force is vertical direction, above stitching cover plate (6), be equipped with the leveling cover plate (11) that thickness is less than or equal to 12mm described, described leveling cover plate (11) approaches the one end at shrinkage joint and is located at the second bearing beam (10) top, 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 the anchoring spring (5) that spring force is vertical direction in 1/7～1/3 position, one end apart from direction to the car side.
5. Telescopic device of bridge steel cover plate according to claim 1, it is characterized in that: 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.
6. Telescopic device of bridge steel cover plate according to claim 1, is characterized in that: at the top of described steel bomb body (9) and be describedly provided with flashing member (8) between across seam cover plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166704.6A CN103924513B (en) | 2014-04-24 | 2014-04-24 | Telescopic device of bridge steel cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410166704.6A CN103924513B (en) | 2014-04-24 | 2014-04-24 | Telescopic device of bridge steel cover plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103924513A true CN103924513A (en) | 2014-07-16 |
| CN103924513B CN103924513B (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410166704.6A Expired - Fee Related CN103924513B (en) | 2014-04-24 | 2014-04-24 | Telescopic device of bridge steel cover plate |
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| Country | Link |
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| CN (1) | CN103924513B (en) |
Cited By (5)
| 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 |
| CN105544384A (en) * | 2015-11-27 | 2016-05-04 | 中铁第四勘察设计院集团有限公司 | Modularized multi-direction displacement cover plate type telescopic 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 (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0978513A (en) * | 1995-09-18 | 1997-03-25 | Nitta Ind Corp | Expansion joint for bridge |
| 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 |
-
2014
- 2014-04-24 CN CN201410166704.6A patent/CN103924513B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0978513A (en) * | 1995-09-18 | 1997-03-25 | Nitta Ind Corp | Expansion joint for bridge |
| 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 |
Cited By (6)
| 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 |
| CN105544384A (en) * | 2015-11-27 | 2016-05-04 | 中铁第四勘察设计院集团有限公司 | Modularized multi-direction displacement cover plate type telescopic device and bridge |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103924513B (en) | 2015-12-30 |
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Inventor after: Luo Yanming Inventor after: Lu Yinghui Inventor after: Lv Guopeng Inventor after: Wang Lin Inventor after: Dan Yaojia Inventor before: Lu Yinghui |
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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 |
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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. |
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Granted publication date: 20151230 Termination date: 20210424 |