CN105421228B - A kind of bridge expansion joint installation - Google Patents

A kind of bridge expansion joint installation Download PDF

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Publication number
CN105421228B
CN105421228B CN201610024101.1A CN201610024101A CN105421228B CN 105421228 B CN105421228 B CN 105421228B CN 201610024101 A CN201610024101 A CN 201610024101A CN 105421228 B CN105421228 B CN 105421228B
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China
Prior art keywords
bridge
plate
telescoping member
fixed
limit assembly
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CN201610024101.1A
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Chinese (zh)
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CN105421228A (en
Inventor
尤其
徐速
胡风
韩维国
王娟
王芳
林霞
吴江涛
李学锋
左婷婷
刘雪
欧阳桂华
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NINGBO ROABY TECHNOLOGY INDUSTRIAL GROUP Co Ltd
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NINGBO ROABY TECHNOLOGY INDUSTRIAL GROUP Co Ltd
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Publication of CN105421228A publication Critical patent/CN105421228A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/06Arrangement, construction or bridging of expansion joints
    • E01D19/065Joints having sliding plates

Abstract

The invention discloses a kind of bridge expansion joint installation, it is characterised in that:Including upper telescoping member and lower telescoping member, the bottom of upper telescoping member is provided with the first limit assembly, the second limit assembly is installed at the top of lower telescoping member, second limit assembly and the first limit assembly are cooperated, and the transverse direction for making telescoping member and lower telescoping member be limited in bridge is relatively moved.Compared with prior art, the advantage of the invention is that:After the upper telescoping member of the bridge expansion joint installation and lower telescoping member are cooperated by the first limit assembly and the second limit assembly, it is limited in the laterally opposed movement of bridge, so as to lateral displacement function, in addition, the bridge expansion joint installation can also have length travel, longitudinal corner and level angle multi-directional deflection function simultaneously, using the bridge of the expansion gap device, in response environment, temperature, heavy duty, strong wind, ocean current, tide, earthquake effect, the safety in utilization of bridge will can be more improved.

Description

A kind of bridge expansion joint installation
Technical field
The present invention relates to a kind of bridge expansion joint installation.
Background technology
The need for meeting bridge beam body deformation, typically between two beam-ends of bridge, between beam-ends and abutment or Bridge expansion joint installation is fitted with the articulated position of bridge.At present, the state-of-the-art bridge expansion joint installation of technology is general all Length travel, longitudinal corner, level angle three-dimensional deflection function are provided simultaneously with, most bridges can be met to bridge expanssion joint The requirement of device, but some large bridges are in use by environment, temperature, heavy duty, strong wind, ocean current, tide, earthquake shadow Ring, in addition to length travel, longitudinal corner, level angle is produced, can also produce lateral displacement, and due to existing bridge expanssion joint Device can not also realize lateral deflection function, thus easily cause the damage of expansion gap device and beam body.In summary, need pair Existing bridge expansion joint installation is further improved.
The content of the invention
The technical problems to be solved by the invention be for above-mentioned state of the art there is provided one kind it is simple in construction, possess The bridge expansion joint installation of lateral displacement function.
The present invention solve the technical scheme that is used of above-mentioned technical problem for:The bridge expansion joint installation, it is characterised in that: Including upper telescoping member and lower telescoping member, the bottom of the upper telescoping member is provided with the first limit assembly, described lower flexible Second limit assembly is installed, the second described limit assembly and the first limit assembly cooperate, and make institute at the top of component State telescoping member and lower telescoping member is limited in the horizontal of bridge and relatively moved.
As a kind of preferred scheme, the first described limit assembly is to be fixed on telescoping member bottom and horizontal along bridge To the first dovetail geosynclinal block of distribution, the second described limit assembly is to be fixed on the top of lower telescoping member and along bridge lateral Second dovetail geosynclinal block of distribution, described the first dovetail geosynclinal block and the second dovetail geosynclinal block is mutually embedded and slides setting.So, when Bridge is by heavy duty, strong wind, ocean current, tide, earthquake effect, and when being moved horizontally along pier generation, the bridge expansion joint installation passes through First dovetails and the second dovetails produce relative slip, the bridge expansion joint installation is had lateral displacement function.
As another preferred scheme, the first described limit assembly includes the locking screw for being fixed on telescoping member bottom Bolt and the spacing collar being set in outside clamping screw, the second described limit assembly is to be fixed on the cunning at the top of lower telescoping member Plate, is provided with the mounting hole being engaged with the spacing collar, the length direction of mounting hole and the transverse direction of bridge on the slide plate Consistent, the spacing collar is movably arranged in described mounting hole, and is compressed in spacing collar by upper telescoping member bottom In the state of, leave gap between the upper telescoping member bottom and slide plate.So, when bridge is by heavy duty, strong wind, ocean current, tide Nighttide, earthquake effect, when being moved horizontally along pier generation, the bridge expansion joint installation passes through spacing collar and slide plate produces relative move It is dynamic, make the bridge expansion joint installation that there is lateral displacement function.
As the further preferred of such scheme, described mounting hole is divided into two row and respectively positioned at the two of the slide plate Side, accordingly, described clamping screw and spacing collar are also divided into two row and respectively positioned at the upper telescoping member bottom Both sides.So, the lateral displacement of expansion gap device is more stablized.
Further preferably, described upper telescoping member includes fixed broach plate and can be relatively fixed fishback in bridge longitudinal direction Mobile transverse joint plate.So, when because of environment temperature and external force along bridge direction of traffic length travel occurs for bridge, by across seam The relative movement of plate and fixed broach plate, makes the bridge expansion joint installation have length travel function.
Further preferably, described upper telescoping member also includes bearing pressing plate, rotating shaft, lower bracket bottom plate, the bearing pressure Plate is fixed on the top of lower bracket bottom plate, and the rotating shaft sets along bridge lateral and is fixed on bearing pressing plate and lower bracket bottom plate Between, the one end of the transverse joint plate away from fixed broach plate is fixed in described rotating shaft.So, when bridge is vertical because heavy duty is produced During to corner, due to transverse joint plate with rotating shaft to be rigidly connected, transverse joint plate is by rotating shaft with bearing pressing plate and lower bracket bottom plate center Hole is that axis generation is longitudinally rotated, and the bridge expansion joint installation is had longitudinal angle turning function.
Further preferably, described lower telescoping member includes bridge fixed plate and the bottom plate being placed at the top of bridge fixed plate, The bridge fixed plate is interfixed with the transverse joint plate, and the bottom plate is interfixed with bridge fixed plate by connecting bolt, Also, it is provided with cushioning support-saddle between described bottom plate and bridge fixed plate.So, when bridge by heavy duty, strong wind, ocean current, Tide, earthquake effect, when horizontally rotating along pier generation, the bridge expansion joint installation passes through fixed connection spiral shell in the soleplate Bolt, using connecting bolt as axis, produces and horizontally rotates with respect to bridge fixed plate and buffering branch, have the bridge expansion joint installation Level angle function.
Further preferably, the bridge fixed plate is interfixed with the transverse joint plate by bolt, the upper end of the bolt It is fixed on transverse joint plate, the lower end of the bolt passes through described bridge fixed plate and is arranged with buffer spring, the buffering elastic The upper end of spring and the bottom of bridge fixed plate offset, and lower end and the stud base of buffer spring offset.
Compared with prior art, the advantage of the invention is that:The upper telescoping member of the bridge expansion joint installation and lower flexible After component is cooperated by the first limit assembly and the second limit assembly, the transverse direction for being limited in bridge is relatively moved, from And with lateral displacement function, in addition, the bridge expansion joint installation can also have length travel, longitudinal corner and level simultaneously Corner multi-directional deflection function, using the bridge of the expansion gap device, response environment, temperature, heavy duty, strong wind, ocean current, tide, During earthquake effect, the safety in utilization of bridge will can be more improved.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention one;
Fig. 2 is the structural representation of the upper telescoping member of the embodiment of the present invention one;
Fig. 3 is the structural representation of the lower telescoping member of the embodiment of the present invention two;
Fig. 4 is the structural representation of the embodiment of the present invention two;
Fig. 5 is the structural representation of the upper telescoping member of the embodiment of the present invention two;
Fig. 6 is the structural representation of the lower telescoping member of the embodiment of the present invention two;
Fig. 7 is the structural representation of the embodiment of the present invention three;
Fig. 8 is the sectional view of the embodiment of the present invention three;
Fig. 9 is the structural representation of the embodiment of the present invention four;
Figure 10 is the sectional view of the embodiment of the present invention four.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment one:
As shown in Figure 1 to Figure 3, the bridge expansion joint installation in the present embodiment includes upper telescoping member and lower telescoping member, First dovetail geosynclinal block 1 is installed in the bottom of upper telescoping member, the second dovetail geosynclinal block 2 is installed at the top of lower telescoping member, First dovetail geosynclinal block 1 and the second dovetail geosynclinal block 2 are all along the cross direction profiles of bridge, and the first dovetail geosynclinal block 1 and the second dovetail groove Block 2 is mutually embedded and slides setting.So, the first dovetail geosynclinal block 1 constitutes the first limit assembly, and the second dovetail geosynclinal block 2 is constituted Second limit assembly, by the first dovetail geosynclinal block 1 and the second dovetail geosynclinal block 2 is relative slides, makes telescoping member and lower flexible The transverse direction that component is limited in bridge is relatively moved, so that the expansion gap device has lateral displacement function.
Embodiment two:
As shown in Figures 4 to 6, the bridge expansion joint installation in the present embodiment includes upper telescoping member and lower telescoping member, Clamping screw 3 and the spacing collar 4 being set in outside clamping screw are fixed with the bottom of upper telescoping member, in lower telescoping member Top is fixed with slide plate 5, is provided with the mounting hole 51 being engaged with spacing collar 4 on slide plate 5, the length direction of mounting hole 51 with The transverse direction of bridge is consistent, and the spacing collar 4 is movably arranged in mounting hole 51.For upper telescoping member and lower telescoping member Can relatively move, in the state of spacing collar 4 is compressed by upper telescoping member bottom, upper telescoping member bottom and slide plate 5 it Between leave gap.In the present embodiment, mounting hole 51 is divided into two row and is located at the both sides of slide plate 5, accordingly, clamping screw 3 respectively Two row are also divided into spacing collar 4 and are located at the both sides of upper telescoping member bottom respectively.So, clamping screw 3 and stop collar Cylinder 4 constitutes the first limit assembly, and slide plate 5 constitutes the second limit assembly, is slided by the way that spacing collar 4 is relative in mounting hole 51, Telescoping member and lower telescoping member is set to be limited in the laterally opposed movement of bridge, so that the expansion gap device has laterally Displacement function.
Embodiment three:
As shown in Figure 7 and Figure 8, there is the bridge expansion joint installation in the present embodiment lateral displacement, length travel, longitudinal direction to turn Angle and level angle multi-directional deflection function, wherein, lateral displacement structure is identical with the lateral displacement structure in embodiment one, herein Not reinflated description.
Length travel structure in the present embodiment is as follows:The upper telescoping member of the expansion gap device includes fixed broach plate 6 With can be relatively fixed the transverse joint plate 7 that fishback is vertically moved in bridge.When bridge is because environment temperature and external force are along bridge driving side To when occurring length travel, by the relative movement of transverse joint plate 7 and fixed broach plate 6, there is the bridge expansion joint installation vertical To displacement function.
Longitudinal corner structure in the present embodiment is as follows:The upper telescoping member of the expansion gap device also include bearing pressing plate 8, Rotating shaft 9 and lower bracket bottom plate 10, bearing pressing plate 8 are fixed on the top of lower bracket bottom plate 10 by clamping screw 3, rotating shaft 9 along Bridge lateral sets and is fixed on bearing pressing plate 8 between lower bracket bottom plate 10, the one end of transverse joint plate 7 away from fixed broach plate 6 It is fixed in rotating shaft 9.When bridge produces longitudinal corner because of heavy duty, due to transverse joint plate 7 with rotating shaft 9 to be rigidly connected, transverse joint plate 7 Produced and longitudinally rotated as axis using bearing pressing plate 8 and the lower centre bore of bracket bottom plate 10 by rotating shaft 9, make the bridge expansion joint installation With longitudinal angle turning function.
The level angle structure of the present embodiment is as follows:The lower telescoping member of the expansion gap device includes the He of bridge fixed plate 11 The bottom plate 12 being placed at the top of bridge fixed plate, bridge fixed plate 11 interfixes with transverse joint plate 7, bottom plate 12 and bridge fixed plate 11 Interfixed by connecting bolt 13, also, be provided between bottom plate 12 and bridge fixed plate 11 cushioning support-saddle 14.Buffering branch Seat 14 is preferred to use rubber support.In addition, bridge fixed plate 11 is interfixed with transverse joint plate 7 by bolt 15, bolt 15 it is upper End is fixed on transverse joint plate 7, and the lower end of bolt 15 passes through bridge fixed plate 11 and is arranged with buffer spring 16, buffer spring 16 Upper end and the bottom of bridge fixed plate 11 offset, and lower end and the bottom of bolt 15 of buffer spring 16 offset.So, when bridge is by weight Load, strong wind, ocean current, tide, earthquake effect, when horizontally rotating along pier generation, the bridge expansion joint installation is by being fixed on bottom Connecting bolt 13 in plate 12, is axis with connecting bolt 13, and producing level with respect to bridge fixed plate 11 and cushioning support-saddle 14 turns It is dynamic, make the bridge expansion joint installation that there is level angle function.
Example IV:
As shown in Figure 9 and Figure 10, there is the bridge expansion joint installation in embodiment lateral displacement, length travel, longitudinal direction to turn Angle and level angle multi-directional deflection function, wherein, the lateral displacement structure in the embodiment and the lateral displacement in embodiment two Structure is identical, and the structure of length travel, longitudinal corner and level angle in the embodiment is identical with the structure in embodiment three, Not reinflated description herein.
It the foregoing is only the preferred embodiment of the present invention, it is noted that for those of ordinary skills, Under the premise of the principle of the present invention is not departed from, a variety of remodeling or improvement can be carried out to the present invention, these are regarded as the present invention Protection domain within.

Claims (6)

1. a kind of bridge expansion joint installation, including upper telescoping member and lower telescoping member, the bottom of the upper telescoping member are installed Have and the second limit assembly is installed at the top of the first limit assembly, the lower telescoping member, the second described limit assembly and One limit assembly is cooperated, and the horizontal work for making the upper telescoping member and lower telescoping member be limited in bridge is moved relatively It is dynamic, it is characterised in that:Described upper telescoping member includes fixed broach plate (6) and can be relatively fixed fishback in bridge longitudinally shifting Dynamic transverse joint plate (7), described upper telescoping member also includes bearing pressing plate (8), rotating shaft (9) and lower bracket bottom plate (10), described Bearing pressing plate (8) is fixed on the top of lower bracket bottom plate (10), and the rotating shaft (9) sets along bridge lateral and is fixed on bearing Between pressing plate (8) and lower bracket bottom plate (10), the one end of the transverse joint plate (7) away from fixed broach plate (6) is fixed on described In rotating shaft (9).
2. bridge expansion joint installation according to claim 1, it is characterised in that:The first described limit assembly is to be fixed on Upper telescoping member bottom and the first dovetail geosynclinal block (1) being distributed along bridge lateral, the second described limit assembly are to be fixed on The top of lower telescoping member and the second dovetail geosynclinal block (2) being distributed along bridge lateral, described the first dovetail geosynclinal block (1) and the Two dovetail geosynclinal blocks (2) are mutually embedded and slide setting.
3. bridge expansion joint installation according to claim 1, it is characterised in that:The first described limit assembly includes fixing Clamping screw (3) and the spacing collar (4) that is set in outside clamping screw in upper telescoping member bottom, described second spacing group Part is to be fixed on the slide plate (5) at the top of lower telescoping member, and the waist being engaged with the spacing collar is provided with the slide plate (5) Shape hole (51), the length direction of the mounting hole (51) is consistent with the transverse direction of bridge, and the spacing collar (4) is movably arranged on In described mounting hole (51), and in the state of spacing collar (4) is compressed by upper telescoping member bottom, the upper telescoping member Gap is left between bottom and slide plate (5).
4. bridge expansion joint installation according to claim 3, it is characterised in that:Described mounting hole (51) is divided into two row simultaneously It is located at the both sides of the slide plate (5) respectively, accordingly, described clamping screw (3) and spacing collar (4) is also divided into two row simultaneously It is located at the both sides of the upper telescoping member bottom respectively.
5. bridge expansion joint installation according to claim 1, it is characterised in that:Described lower telescoping member is solid including bridge Fixed board (11) and the bottom plate (12) being placed at the top of bridge fixed plate, the bridge fixed plate (11) are mutual with the transverse joint plate (7) Fixed, the bottom plate (12) is interfixed with bridge fixed plate (11) by connecting bolt (13), also, in described bottom plate (12) cushioning support-saddle (14) is provided between bridge fixed plate (11).
6. bridge expansion joint installation according to claim 5, it is characterised in that:The bridge fixed plate (11) with it is described across Seam plate (7) is interfixed by bolt (15), and the upper end of the bolt (15) is fixed on transverse joint plate (7), the bolt (15) Lower end is through described bridge fixed plate (11) and is arranged with buffer spring (16), the upper end of the buffer spring (16) and bridge The bottom of beam fixed plate (11) offsets, and lower end and bolt (15) bottom of buffer spring (16) offset.
CN201610024101.1A 2016-01-14 2016-01-14 A kind of bridge expansion joint installation Active CN105421228B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105862583B (en) * 2016-04-21 2017-06-20 衡水鑫盛达新材料科技有限公司 One kind is exempted to tear exchangeable fishback retractor device open
CN107675618A (en) * 2017-10-30 2018-02-09 安徽省交通控股集团有限公司 A kind of unit covers tooth retractor device
CN109594469A (en) * 2018-11-16 2019-04-09 宁波路宝科技实业集团有限公司 A kind of bridge expansion joint installation
CN110144816A (en) * 2019-06-20 2019-08-20 路宝高分子材料科技有限公司 A kind of expansion gap device with non-motor vehicle anti-sunken function

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205529869U (en) * 2016-01-14 2016-08-31 宁波路宝科技实业集团有限公司 Bridge expansion joint device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10208359A1 (en) * 2002-02-27 2003-09-11 Migua Fugensysteme Gmbh & Co K Sealing device for an expansion joint
CN1333137C (en) * 2004-01-08 2007-08-22 徐斌 Expansion joint apparatus for ultra large yield resisting comb type bridge
CN100552139C (en) * 2004-09-30 2009-10-21 徐斌 A kind of comb type bridge expansion joint device of resisting transverse shift
CN100406650C (en) * 2005-06-05 2008-07-30 徐斌 Modular comb type expansion joint installation of girder capable of resisting super displacement
CN101768921B (en) * 2010-01-06 2012-05-09 徐斌 Environment-friendly noise reduction type bridge expansion joint device with multi-directional deflection function
CN201704619U (en) * 2010-05-10 2011-01-12 吴国庆 Multidirectional displacement bridge expansion device
CN103924511A (en) * 2014-04-21 2014-07-16 苏州海德工程材料科技有限公司 Comb-tooth-type expansion joint with position capable of being transversely changed
CN105239503B (en) * 2015-11-03 2017-03-08 上海汇城建筑装饰有限公司 A kind of six to displacement fishback retractor device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205529869U (en) * 2016-01-14 2016-08-31 宁波路宝科技实业集团有限公司 Bridge expansion joint device

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Address after: 315000 96 Hibiscus Road, Ningbo high tech Zone, Zhejiang

Patentee after: NINGBO ROABY TECHNOLOGY INDUSTRIAL GROUP Co.,Ltd.

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Inventor after: You Qi

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