CN201567527U - Double-joint super-shallow buried profile steel bridge expansion device - Google Patents

Double-joint super-shallow buried profile steel bridge expansion device Download PDF

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Publication number
CN201567527U
CN201567527U CN200920316012XU CN200920316012U CN201567527U CN 201567527 U CN201567527 U CN 201567527U CN 200920316012X U CN200920316012X U CN 200920316012XU CN 200920316012 U CN200920316012 U CN 200920316012U CN 201567527 U CN201567527 U CN 201567527U
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CN
China
Prior art keywords
shaped steel
crossbeam
central sill
joint
profile 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.)
Expired - Fee Related
Application number
CN200920316012XU
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Chinese (zh)
Inventor
李忠贵
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Chengdu Hongzhu Road & Bridge Machine Co Ltd
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Chengdu Hongzhu Road & Bridge Machine Co Ltd
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Priority to CN200920316012XU priority Critical patent/CN201567527U/en
Application granted granted Critical
Publication of CN201567527U publication Critical patent/CN201567527U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a double-joint super-shallow buried profile steel bridge expansion device between beam plates on both sides of a bridge expansion joint, which can be buried in a mounting notch with less depth. The double-joint super-shallow buried profile steel bridge expansion device comprises side beam profile steels positioned at both sides of a beam body and arranged vertically along the beam body, a middle beam profile steel positioned between the side beam profile steels and arranged vertically along the beam body, and a cross beam transversely arranged along the beam body; the beam body is provided with a support structure, both ends of the cross beam are movably distributed in the support structure, the web plate position of the middle beam profile steel is provided with a through hole, and the cross beam penetrates through the through hole to be fixedly connected with the middle beam profile steel. As the cross beam is fixedly connected in the through hole of the web plate position of the middle beam profile steel, the total height of the whole expansion device is greatly reduced, and the double-joint super-shallow buried profile steel bridge expansion device can be buried in a shallower mounting notch more conveniently; and the double-joint super-shallow buried profile steel bridge expansion device is particularly applicable to popularization and use in reconstruction projects of thin-wall bridge and old bridge expansion joint devices.

Description

The shaped steel bridge extension joint is established in the super shallow embedding of double slit
Technical field
The utility model relates to the bridge stretching structure, and the shaped steel bridge extension joint is established in the super shallow embedding of double slit that is specifically related between a kind of bridge expanssion joint place both sides beam slab.
Background technology
At present, on the market of bridge double slit shaped steel stretching device like product in the depth of burying of bridge floor generally more than 350mm, some double slit shallow embedding type stretching device structure heights are also about 200mm, and the crossbeam of these bridge double slit shaped steel stretching devices and the central sill designs for welding structure that open otch (crossbeam is arranged in the central sill below) is arranged have the opening otch of very big shortcoming: a, central sill lower wing plate to make central sill horizontal stressed discontinuous; The reinforcement gusset of b, crossbeam both sides changes the power transmission direction of central sill by crossbeam to cause pad stress to be concentrated, and makes central sill that fatigue fracture in use very easily take place.For medium and smallly stride footpath bridge its bridge floor thin thickness, deck-molding is low, the stretching device improvement project of some old bridges particularly when it reserves depth of rebate less than 150mm, can't be imbedded when general shallow embedding double slit stretching device is installed.The expansion gap device than big displacement quantity of the bridge employing that mounting groove is more shallow at present mostly is interdigitated electrode structure steel plate stretching device greatly.The structure of interdigitated electrode structure steel plate bridge extension joint also exists a lot of shortcomings: a, broach steel plate to only depend on the minority bolt to be connected with the bridge construction connection, connects insecure with bridge construction; After having added the yielding rubber plate below b, the steel plate, vehicle is reflected in the strong repeated stock to clamp nut the percussion of steel plate, and not adding the damping rubber tile does not have damping effect again to bridge; C, interdigitated electrode structure steel plate are that face contacts with concrete foundation, be exposed to the sun by sunlight or different because of the material coefficient of expansion during temperature Change, steel plate and concrete contact surface may produce some spaces, thereby cause car load by the repeated stock beating effect of steel plate, and steel plate have injury because of the beating that vehicle shakes bridge pier to bridge pier itself to concrete base layer under the steel plate; D, domestic some can multi-directional deflections the interdigitated electrode structure stretching device can only can rotate at the transverse joint plate hinged end of stretching device, its fixed charge method end plate does not have the matching design of variable bit, so also can only realize length travel, can not realize real multidirectional displacement, in case bridge changes because of a variety of causes produces three-D displacement, this interdigitated electrode structure steel plate stretching device and other interdigitated electrode structure steel plate stretching devices are easy to generate damage equally.E, interdigitated electrode structure steel plate stretching device except the manufacturing cost height, install than the complexity, have at the heavier speedway of load etc. on the highway of big flow and use easier acceleration to damage.
The utility model content
The technical problem that the utility model solved provides a kind of super shallow embedding of double slit that can bury underground and establishes the shaped steel bridge extension joint in the more shallow installation notch of the degree of depth.
The technical scheme that its technical problem that solves the utility model adopts is: the shaped steel bridge extension joint is established in the super shallow embedding of double slit, comprise the side bar shaped steel that is positioned at beam body both sides and vertically arranges along the beam body, the central sill shaped steel that is arranged between the side bar shaped steel and vertically arranges along the beam body and along the crossbeam of beam body lateral arrangement, the beam body is provided with braced structures, the two ends activity of crossbeam is arranged in the braced structures, web place at central sill shaped steel is provided with through hole, and crossbeam passes this through hole and fixedlys connected with central sill shaped steel.
Further be crossbeam and the welding of central sill shaped steel full penetration.
Further be, the soffit of described side bar shaped steel is lower than the through hole end face at central sill shaped steel web place, and side bar shaped steel is provided with the opening suitable with crossbeam.
Further be that described braced structures is the supported box that is fixedly connected on the side bar shaped steel outside.
Further be, be provided with the rubber sliding spring between the upper surface of supported box and crossbeam, be provided with the rubber sliding bearing between the soffit of supported box and crossbeam, be provided with long-acting lubricated oil storage blind hole between rubber sliding spring and the crossbeam and between rubber sliding bearing and the crossbeam.
Further be between supported box and crossbeam, to be provided with the NDI polyurethane spring.
Further be between side bar shaped steel and central sill shaped steel, to be provided with sealing joint strip.
The beneficial effects of the utility model are: because crossbeam is fixedly connected in the through hole at central sill shaped steel web place, make that the height of whole stretching device is the height of central sill shaped steel, then greatly reduce the whole height of whole stretching device, be beneficial to and the shaped steel bridge extension joint is established in the super shallow embedding of double slit of the present utility model be embedded in the more shallow installation notch; By crossbeam and the welding of central sill shaped steel full penetration, can improve the anti-fatigue performance of central sill shaped steel, be particluarly suitable for promoting the use of in thin-walled bridge and the old bridge expansion gap device improvement project.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the revolved sectional view of A-A direction among Fig. 1;
Fig. 3 is the revolved sectional view of B-B direction among Fig. 1.
Be labeled as among the figure: side bar shaped steel 1, central sill shaped steel 2, crossbeam 3, supported box 4, beam body 5, sealing joint strip 6, rubber sliding spring 7, rubber sliding bearing 8, long-acting lubricated oil storage blind hole 9, NDI polyurethane spring 10.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1 to Figure 3, the shaped steel bridge extension joint is established in the super shallow embedding of double slit of the present utility model, comprise the side bar shaped steel 1 that is positioned at beam body 5 both sides and vertically arranges along beam body 5, central sill shaped steel 2 that are arranged between the side bar shaped steel 1 and vertically arrange along beam body 5 and along the crossbeam 3 of beam body 5 lateral arrangement, beam body 5 is provided with braced structures, the two ends activity of crossbeam 3 is arranged in the braced structures, is provided with through hole at the web place of central sill shaped steel 2, and crossbeam 3 passes this through hole and fixedlys connected with central sill shaped steel 2.Because crossbeam 3 is fixedly connected in the through hole at central sill shaped steel 2 web places, make that the height of whole stretching device is the height of central sill shaped steel 2, also just reduced the whole height of whole stretching device, be beneficial to and the shaped steel bridge extension joint is established in the super shallow embedding of double slit of the present utility model be embedded in the more shallow installation notch.Crossbeam 3 passes central sill shaped steel 2 backs by side bar shaped steel 1, the two ends of crossbeam 3 are extend in the braced structures on the beam body 5, be lower than the through hole end face at central sill shaped steel 2 web places when the soffit of side bar shaped steel 1, at this moment, side bar shaped steel 1 can interfere with crossbeam 3, need on side bar shaped steel 1, to be provided with the opening suitable, crossbeam 3 is passed through from this opening with crossbeam 3.
In the above-described embodiment, for improving the anti-fatigue performance of central sill shaped steel 2, crossbeam 3 and the welding of central sill shaped steel 2 full penetrations.Weld by full penetration, and the form of structure that central sill shaped steel 2 web places establish through hole makes the appearance and size of central sill shaped steel 2 without any change, therefore, the pad place need not add any reinforcement gusset of weldering, can make central sill shaped steel 2 any change can not take place like this by the power transmission direction of crossbeam 3, therefore can not cause pad stress concentration phenomenon, thereby make the anti-fatigue performance of central sill shaped steel 2 greatly improve, can prevent effectively that under busy traffic conditions solder joint welding stress from causing the possibility of fatigue failure.
In the above embodiment, described braced structures can adopt all structures that can support crossbeam 3, and as optimal way, described braced structures is the supported box 4 that is fixedly connected on side bar shaped steel 1 outside.After supported box 4 is set, between the upper surface of supported box 4 and crossbeam 3, be provided with rubber sliding spring 7, be provided with rubber sliding bearing 8 between the soffit of supported box 4 and crossbeam 3, be provided with long-acting lubricated oil storage blind hole 9 between rubber sliding spring 7 and the crossbeam 3 and between rubber sliding bearing 8 and the crossbeam 3.The setting of rubber sliding spring 7 and rubber sliding bearing 8 makes crossbeam 3 realize slippage between sliding spring 7 and rubber sliding bearing 8; And the long-acting lubricated oil storage blind hole 9 that is provided with makes and lubricates oil storage supply slide plane automatically, realizes long-acting lubrication, can adapt to the needs that the bridge three-D displacement changes fully.
For improving the stress equalization that the shaped steel bridge extension joint is established in the super shallow embedding of double slit of the present utility model, between supported box 4 and crossbeam 3, be provided with NDI polyurethane spring 10 (NDI polyurethane is 1,5-naphthalene two isocyanic acid materials).The compressive strength of NDI polyurethane spring 10 is higher, rebound performance is good, has good ageing resistace, the TDI polyurethane spring more good (TDI polyurethane is the toluene di-isocyanate(TDI) material) that the heat resistance of NDI polyurethane spring 10 and dynamic mechanical adopt than other stretching devices.Adopt the NDI polyurethane spring to make the stressed more balance of stretching device automatically with the wide uniformity that is adjusted to of respectively stitching of stretching device.
For preventing that dust, foreign material etc. from entering in the shrinkage joint of side bar shaped steel 1 and central sill shaped steel 2, is provided with sealing joint strip 6 between side bar shaped steel 1 and central sill shaped steel 2.

Claims (7)

1. the shaped steel bridge extension joint is established in the super shallow embedding of double slit, comprise the side bar shaped steel (1) that is positioned at beam body (5) both sides and vertically arranges along beam body (5), the central sill shaped steel (2) that is arranged between the side bar shaped steel (1) and vertically arranges along beam body (5) and along the crossbeam (3) of beam body (5) lateral arrangement, beam body (5) is provided with braced structures, the two ends activity of crossbeam (3) is arranged in the braced structures, it is characterized in that: the web place at central sill shaped steel (2) is provided with through hole, and crossbeam (3) passes this through hole and fixedlys connected with central sill shaped steel (2).
2. the shaped steel bridge extension joint is established in the super shallow embedding of double slit as claimed in claim 1, it is characterized in that: crossbeam (3) and the welding of central sill shaped steel (2) full penetration.
3. the shaped steel bridge extension joint is established in the super shallow embedding of double slit as claimed in claim 2, it is characterized in that: the soffit of described side bar shaped steel (1) is lower than the through hole end face at central sill shaped steel (2) web place, and side bar shaped steel (1) is provided with and the suitable opening of crossbeam (3).
4. the shaped steel bridge extension joint is established in the super shallow embedding of double slit as claimed in claim 3, it is characterized in that: described braced structures is for being fixedly connected on the supported box (4) outside the side bar shaped steel (1).
5. the shaped steel bridge extension joint is established in the super shallow embedding of double slit as claimed in claim 4, it is characterized in that: be provided with rubber sliding spring (7) between the upper surface of supported box (4) and crossbeam (3), be provided with rubber sliding bearing (8) between the soffit of supported box (4) and crossbeam (3), be provided with long-acting lubricated oil storage blind hole (9) between rubber sliding spring (7) and the crossbeam (3) and between rubber sliding bearing (8) and the crossbeam (3).
6. the shaped steel bridge extension joint is established in the super shallow embedding of double slit as claimed in claim 5, it is characterized in that: be provided with NDI polyurethane spring (10) between supported box (4) and crossbeam (3).
7. establish the shaped steel bridge extension joint according to the super shallow embedding of any described double slit of claim in the claim 1 to 6, it is characterized in that: between side bar shaped steel (1) and central sill shaped steel (2), be provided with sealing joint strip (6).
CN200920316012XU 2009-11-27 2009-11-27 Double-joint super-shallow buried profile steel bridge expansion device Expired - Fee Related CN201567527U (en)

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Application Number Priority Date Filing Date Title
CN200920316012XU CN201567527U (en) 2009-11-27 2009-11-27 Double-joint super-shallow buried profile steel bridge expansion device

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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102296545A (en) * 2011-05-26 2011-12-28 中国铁道科学研究院铁道建筑研究所 Method for quickly repairing existing expansion joints of concrete railway bridge
CN103452041A (en) * 2013-10-09 2013-12-18 湖南广和桥梁构件有限公司 Large-displacement-amount modular pattern bridge expansion device of safe deposit box system
CN104153289A (en) * 2014-08-14 2014-11-19 衡水布朗科技有限公司 Replaceable modular bridge expansion device and installation and maintenance replacement method thereof
CN104562926A (en) * 2014-12-25 2015-04-29 贵州省交通规划勘察设计研究院股份有限公司 Bridge telescopic device anchoring structure
CN104562925A (en) * 2014-12-25 2015-04-29 贵州省交通规划勘察设计研究院股份有限公司 Expansion device with adjustable steel plate anchoring members
CN105442440A (en) * 2015-12-31 2016-03-30 中国一冶集团有限公司 Cross-linking-type curved-beam-bridge combined expansion joint
CN106522084A (en) * 2016-11-15 2017-03-22 陕西鸿博百川工程材料有限公司 Highway bridge shallow-embedded type flexible comb plate expansion and contraction device and installation method
CN110700087A (en) * 2019-10-10 2020-01-17 四川省公路规划勘察设计研究院有限公司 Bridge expansion device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102296545A (en) * 2011-05-26 2011-12-28 中国铁道科学研究院铁道建筑研究所 Method for quickly repairing existing expansion joints of concrete railway bridge
CN103452041A (en) * 2013-10-09 2013-12-18 湖南广和桥梁构件有限公司 Large-displacement-amount modular pattern bridge expansion device of safe deposit box system
CN104153289A (en) * 2014-08-14 2014-11-19 衡水布朗科技有限公司 Replaceable modular bridge expansion device and installation and maintenance replacement method thereof
CN104153289B (en) * 2014-08-14 2016-03-02 衡水布朗科技有限公司 Replaceable modulus bridge expansion device and install and examine and replace method
CN104562926A (en) * 2014-12-25 2015-04-29 贵州省交通规划勘察设计研究院股份有限公司 Bridge telescopic device anchoring structure
CN104562925A (en) * 2014-12-25 2015-04-29 贵州省交通规划勘察设计研究院股份有限公司 Expansion device with adjustable steel plate anchoring members
CN105442440A (en) * 2015-12-31 2016-03-30 中国一冶集团有限公司 Cross-linking-type curved-beam-bridge combined expansion joint
CN106522084A (en) * 2016-11-15 2017-03-22 陕西鸿博百川工程材料有限公司 Highway bridge shallow-embedded type flexible comb plate expansion and contraction device and installation method
CN110700087A (en) * 2019-10-10 2020-01-17 四川省公路规划勘察设计研究院有限公司 Bridge expansion device

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100901

Termination date: 20131127