CN102767136A - Anti-seismic small deformation expansion device of comb plate - Google Patents
Anti-seismic small deformation expansion device of comb plate Download PDFInfo
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- CN102767136A CN102767136A CN2012102888263A CN201210288826A CN102767136A CN 102767136 A CN102767136 A CN 102767136A CN 2012102888263 A CN2012102888263 A CN 2012102888263A CN 201210288826 A CN201210288826 A CN 201210288826A CN 102767136 A CN102767136 A CN 102767136A
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- movable comb
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Abstract
The invention discloses an anti-seismic small deformation expansion device of a comb plate. The expansion device is characterized in that a horizontal limiting slippage mechanism is arranged on a movable comb plate, a horizontal single-seam deformation bar is arranged at the back end of the movable comb plate, one end of the movable comb plate is fixedly arranged on a spherical support, the other end of the movable comb plate is placed on a stainless steel sliding plate together with comb teeth of a fixed comb plate in a mutual spigot and socket mode, the movable comb plate is slidingly connected with the stainless steel sliding plate, and the fixed comb plate is fixedly connected with the stainless steel sliding plate. Compared with the prior art, the expansion device is provided with a three-dimensional deformation function which is provided with plane and vertical rotation and horizontal displacement, consistent deformation can be performed along with a bridge structure, not only deformation requirements for daily use are satisfied, but also the deformation requirements due to great longitudinal and horizontal displacement of the bridge when an earthquake happens can also be satisfied, the structure is simple, the construction is convenient, the construction cost is low, and the service life is long.
Description
Technical field
The present invention relates to the bridge construction technical field, specifically a kind of antidetonation formula small deformation amount comb plate stretching device.
Background technology
Various places, the world today all are in earthquake high-risk period, and earthquake takes place in succession, and earthquake intensity also in upgrading, is brought very big harm to the people of the world, makes everybody take anti-quake measures to the understanding of earthquake protection with to building structure.Bridge construction also must be taked precautions against earthquakes, must accomplish also can continue after the earthquake safe handling as the comb plate stretching device of beam body connecting elements.Bridge construction is to be in the solid space scope; It should be " three-dimensional " solid space; It has X, Y, three axle beds of Z, and X, Y, three displacement coordinates of Z and ∮ y (vertical corner), ∮ x (laterally corner), ∮ z (plane corner) are arranged on three axle beds, always has six distortion elements; Reach function of seismic resistance and must possess six distortion elements; Also will reach the requirement of deformation values size, the element deformation values that has is quite big, must satisfy when earthquake takes place and can keep out the great displacement of vertical and horizontal.
At present, though the comb plate stretching device that uses on the bridge construction has the function of multi-directional deflection, addendum modification is minimum, especially lateral displacement is not accomplished very big.Like elevated bridge engineering in the Haikou City, be in doughtily the shake area, bridge construction can produce relative length travel ± 150 millimeter and lateral displacement ± 150 millimeter and vibrates up and down when earthquake took place.The comb plate stretching device of prior art has satisfied not the very big displacement of vertical and horizontal at all, and the comb plate stretching device is extruded damage easily.
Summary of the invention
A kind of antidetonation formula small deformation amount comb plate stretching device that the objective of the invention is to be directed against the deficiency of prior art and design; Movable comb plate adopts tension tumbler bearing and spacing stayed mast displacement structure, makes stretching device have " three-dimensional " distortion function, can follow bridge construction compatible deformation together; Various distortion when not only satisfying daily operation; The distortion that bridge produces the vertical and horizontal very large displacement in the time of satisfying the earthquake generation again, simple in structure, easy construction; Further reduce construction costs, improve application life.
Realize that concrete technical scheme of the present invention is: a kind of antidetonation formula small deformation amount comb plate stretching device; Comprise movable comb plate and fixed fingers plate; Be characterized in that said movable comb plate is provided with the cross spacing slipping mechanism; Its rear end is provided with horizontal single seam modified strip, and movable comb plate one end is fixedly installed on the spherical bearing, and the mutual socket joint horizontal of its other end and fixed fingers plate broach is on the stainless steel slide plate; Movable comb plate and stainless steel slide plate be for being slidingly connected, and fixed fingers plate and stainless steel slide plate are for being fixedly connected; Said cross spacing slipping mechanism is made up of stayed mast, slide block and chute; Stayed mast is the screw rod that is provided with double nut; Stayed mast is that " T " shape is vertical affixed with slide block; Stayed mast is sleeved in the chute, and its slide block and chute are for being slidingly connected, and the cross spacing slipping mechanism is fixedly connected with movable comb plate with double nut by stayed mast; Said horizontal single seam modified strip is the V-shaped rubber fastening band in cross section, and laterally single seam modified strip is fixedly connected with movable comb plate rear end face by clamp.
Said cross spacing slipping mechanism is for being symmetricly set on movable comb plate middle part.
Said spherical bearing is to be symmetricly set on the unidirectional of movable comb plate one end or bidirectional stretch ball steel support.
Said movable comb plate middle part is provided with the counterbore that cooperates with double nut.
Said slide block is provided with the high-tension pad.
Said stainless steel slide plate is provided with the slippage slot that cooperates with stayed mast.
The present invention compared with prior art has " three-dimensional " distortion function of plane and vertical rotation and lateral displacement; Can follow bridge construction compatible deformation together, not only satisfy various distortion needs used in everyday, the distortion that bridge produces the vertical and horizontal very large displacement in the time of satisfying the earthquake generation again; Simple in structure; Easy construction further reduces construction costs, improves application life.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is a cross spacing Sliding Structures sketch map
Fig. 3 is embodiment of the invention figure
Fig. 4 is Fig. 3 vertical view
Fig. 5 is that the A-A of Fig. 3 is to sectional drawing
The specific embodiment
Consult accompanying drawing 1; The present invention includes movable comb plate 1 and fixed fingers plate 2; Said movable comb plate 1 is provided with cross spacing slipping mechanism 7; Its rear end is provided with horizontal single seam modified strip 8, and movable comb plate 1 one ends are fixedly installed on the spherical bearing 4, and the mutual socket joint horizontal of its other end and fixed fingers plate 2 broach is on stainless steel slide plate 5; Spherical bearing 4 is fixedly connected with movable comb plate 1 by bolt 42, and movable comb plate 1 and stainless steel slide plate 5 be for being slidingly connected, and fixed fingers plate 2 and stainless steel slide plate 5 are for being fixedly connected; Said cross spacing slipping mechanism 7 is fixedly connected with movable comb plate 1 with double nut 74 by stayed mast 71; Said horizontal single seam modified strip 8 is the V-shaped rubber fastening band in cross section, and laterally single seam modified strip 8 is fixedly connected with movable comb plate 1 rear end face by clamp 81.Said cross spacing slipping mechanism 7 is for being symmetricly set on movable comb plate 1 middle part; Said spherical bearing 4 is for being symmetricly set on the unidirectional of movable comb plate 1 one ends or bidirectional stretch ball steel support; Said movable comb plate 1 middle part is provided with the counterbore 11 that cooperates with double nut 74; Said slide block 72 is provided with high-tension pad 75; Said stainless steel slide plate 5 is provided with the slippage slot 51 that cooperates with stayed mast 71.
Consult accompanying drawing 2; Said cross spacing Sliding Structures 7 is made up of stayed mast 71, slide block 72 and chute 73; Said stayed mast 71 is for being provided with the screw rod of double nut 74; Stayed mast 71 is that " T " shape is vertical affixed with slide block 72, and stayed mast 71 is sleeved in the chute 73, and its slide block 72 and chute 73 are for being slidingly connected.
Embodiment 1
Consult accompanying drawing 3 ~ accompanying drawing 4, the present invention installs by following step and construction:
Cut the installation preformed groove of a curb girder body A and another curb girder body B; Main muscle, stirrup and prestress pipe in the beam body must not be damaged when digging concrete beating, and uncut bituminous concrete will be protected, the arrangement embedded bar; Guarantee pre-embedded steel slab quantity, should in time fill when damaged.
The position of on a curb girder body A, making two spherical bearings 4; Two 4 one of spherical bearings adopt unidirectional tension; Another adopts bidirectional stretch, and confirms the end face absolute altitude of two spherical bearings 4 according to the thickness that the bridge floor vertical and horizontal gradient deducts movable comb plate 1, goes up pre-embedded steel slab 41 welding to the base of spherical bearing 4 with a beam body A and fixes with connecting steel plate; And then build 4 times concrete of spherical bearing, it is closely knit to vibrate.
According to temperature with the broadband table of comparisons is installed, the position of making anchor bolt 21 on the fixed fingers plate 2 with two kinds of standard calipers, and fix with 22 welding of another curb girder body B pre-embedded steel slab; Then, chute 73 is installed, should be noted the accuracy of its position, absolute altitude and straightness accuracy when chute 73 is installed, and will combine the bridge floor vertical and horizontal gradient to consider together, firmly weld embedded bar and stiffener in chute 73 and another curb girder body B fixing; Then, lay stiffener net and the termination envelope mould that another curb girder body B is installed; Water and smash another curb girder body B and go up fibrous concrete, concrete is answered vibration compacting, controls the concrete pavement absolute altitude well; Disturbing concrete simultaneously; Stainless steel slide plate 5 and fixed fingers plate 2 are installed, are tightened the nut on the anchor bolt 21, note the planeness of fixed fingers plate 2 surface layers; The tape front cover is used on chute 73 surfaces before disturbing concrete; Prevent that concrete from dropping into chute 73 inner chambers, stainless steel slide plate 5 is installed in 73 last times of chute and should notes slippage slot 51 correspondingly with chute 73, builds the intermediate zone concrete 23 and the covering curing of sprinkling water of another curb girder body B.
, installation activity comb plate and waterstop
The slide block 72 of welding stayed mast 71 is packed in the chute 73; Lifting activity comb plate 1; The counterbore 11 of movable comb plate 1 is aimed at the screw rod of stayed mast 71; Mutual socket joint of the broach of its broach and fixed fingers plate 2 and horizontal are inserted in counterbore 11 usefulness double nuts 74 with stayed mast 71 then and are tightened on stainless steel slide plate 5, and spherical bearing 4 is fixedly connected with movable comb plate 1 by bolt 42; On the shrinkage joint between a curb girder body A and another curb girder body B, rubber fastening band 6 is set, rubber fastening band 6 is fixedly connected with another curb girder body B with a curb girder body A respectively by screw.
Horizontal single seam modified strip 8 is arranged on the seam crossing of movable comb plate 1 and a curb girder body A, laterally single seam modified strip 8 both sides by clamp 81 respectively with movable comb plate 1 and a curb girder body A on pre-buried angle steel 43 weld and fix; Build the intermediate zone concrete 13 of a curb girder body A and the covering curing of sprinkling water.
On the surface layer of movable comb plate 1 and fixed fingers plate 2, elastic anti-slip layer 9 is set, elastic anti-slip layer 9 adopts the sprinkling polyureas to add and spreads quartz sand technology, with movable comb plate 1 and fixed fingers plate 2 surface layer impeller blastings; The one-component polyureas is sprayed in surface layer cleaning back, then, and spreading fine quartz sand immediately; Construction and installation finish, and treat that the maintenance expiration gets final product open to traffic, elastic anti-slip layer 9; Noise in the time of can reducing vehicle ' plays damping effect.
The present invention adopts the form of structure of spherical bearing 4 one-sided support activity comb plates 1 on a curb girder body A; When another curb girder body B rotates; Can make movable comb plate 1 front end generation nose phenomenon; Because the little dependence broach of its nose amount top rake way reaches two broach and connects along transition, vehicle is steadily passed through; Cross spacing slipping mechanism 7 can prevent that beating of movable comb plate 1 from upwarping, and does not influence the laterally big displacement of a curb girder body A again; Horizontal single seam formula modified strip 8 can satisfy plane and the vertical complex deformation needs that rotate and produce during lateral displacement, can play the function of waterproof and dustproof again.
More than just the present invention being further specified, is not in order to the restriction this patent, all for the present invention's equivalence enforcement, all should be contained within the claim scope of this patent.
Claims (6)
1. antidetonation formula small deformation amount comb plate stretching device; Comprise movable comb plate and fixed fingers plate, it is characterized in that said movable comb plate is provided with the cross spacing slipping mechanism, its rear end is provided with horizontal single seam modified strip; Movable comb plate one end is fixedly installed on the spherical bearing; The mutual socket joint horizontal of its other end and fixed fingers plate broach is on the stainless steel slide plate, and movable comb plate and stainless steel slide plate be for being slidingly connected, and fixed fingers plate and stainless steel slide plate are for being fixedly connected; Said cross spacing slipping mechanism is made up of stayed mast, slide block and chute; Stayed mast is the screw rod that is provided with double nut; Stayed mast is that " T " shape is vertical affixed with slide block; Stayed mast is sleeved in the chute, and its slide block and chute are for being slidingly connected, and the cross spacing slipping mechanism is fixedly connected with movable comb plate with double nut by stayed mast (71); Said horizontal single seam modified strip is the V-shaped rubber fastening band in cross section, and laterally single seam modified strip is fixedly connected with movable comb plate rear end face by clamp.
2. according to the said antidetonation formula of claim 1 small deformation amount comb plate stretching device, it is characterized in that said cross spacing slipping mechanism is for being symmetricly set on movable comb plate middle part.
3. according to the said antidetonation formula of claim 1 small deformation amount comb plate stretching device, it is characterized in that said spherical bearing is to be symmetricly set on the unidirectional of movable comb plate one end or bidirectional stretch ball steel support.
4. according to the said antidetonation formula of claim 1 small deformation amount comb plate stretching device, it is characterized in that said movable comb plate middle part is provided with the counterbore that cooperates with double nut.
5. according to the said antidetonation formula of claim 1 small deformation amount comb plate stretching device, it is characterized in that said slide block is provided with the high-tension pad.
6. according to the said antidetonation formula of claim 1 small deformation amount comb plate stretching device, it is characterized in that said stainless steel slide plate is provided with the slippage slot that cooperates with stayed mast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210288826.3A CN102767136B (en) | 2012-08-15 | 2012-08-15 | Anti-seismic small deformation expansion device of comb plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210288826.3A CN102767136B (en) | 2012-08-15 | 2012-08-15 | Anti-seismic small deformation expansion device of comb plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102767136A true CN102767136A (en) | 2012-11-07 |
| CN102767136B CN102767136B (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210288826.3A Expired - Fee Related CN102767136B (en) | 2012-08-15 | 2012-08-15 | Anti-seismic small deformation expansion device of comb plate |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243646A (en) * | 2013-05-22 | 2013-08-14 | 上海汇城建筑装饰有限公司 | Earthquake proof PTFE (Poly Tetra Fluoro Ethylene) plate rubber bearing small displacement comb plate extensible device |
| CN103255711A (en) * | 2013-05-21 | 2013-08-21 | 成都市新筑路桥机械股份有限公司 | Split type flexure-resisting multidirectional-deflection bridge expansion device |
| CN103590329A (en) * | 2013-11-25 | 2014-02-19 | 中铁第一勘察设计院集团有限公司 | Expansion joint of railway prestressed concrete portion cable-stayed bridge beam end |
| CN103850179A (en) * | 2014-03-20 | 2014-06-11 | 成都市新筑路桥机械股份有限公司 | Rack type bridge expansion device |
| CN104099862A (en) * | 2014-07-22 | 2014-10-15 | 衡水鑫盛达新材料科技有限公司 | Elastic multi-displacement comb tooth bridge expanding and contracting device |
| CN105256718A (en) * | 2015-10-28 | 2016-01-20 | 中铁第四勘察设计院集团有限公司 | Modular multidirectional displacement telescopic device and bridge |
| CN105862584A (en) * | 2016-06-06 | 2016-08-17 | 上海汇城建筑装饰有限公司 | Double-simple-support type anti-falling comb-shaped bridge expansion device |
| CN108951316A (en) * | 2018-06-22 | 2018-12-07 | 中铁二院工程集团有限责任公司 | A kind of damping type magnetic floating system rail telescopic adjustment structure |
| CN111851283A (en) * | 2020-08-20 | 2020-10-30 | 河北宝力工程装备股份有限公司 | Anti-warping tooth multidirectional displacement device and application thereof in comb plate type telescopic device |
| CN111945557A (en) * | 2020-07-22 | 2020-11-17 | 山西省交通新技术发展有限公司 | Movable tooth end pressing plate type telescopic device for highway bridge |
| CN112482207A (en) * | 2020-10-29 | 2021-03-12 | 山西省交通新技术发展有限公司 | Noise reduction and earthquake resistance method for bridge |
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Patent Citations (6)
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| JP2009138334A (en) * | 2007-12-03 | 2009-06-25 | Motonosuke Arai | Expansion joint for road bridge |
| CN201321598Y (en) * | 2008-10-30 | 2009-10-07 | 上海汇城建筑装饰有限公司 | Multi-directionally displaced bridge expansion joint |
| CN102561177A (en) * | 2010-12-17 | 2012-07-11 | 成都市新筑路桥机械股份有限公司 | Comb teeth type anti-deflection bridge expansion device |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255711A (en) * | 2013-05-21 | 2013-08-21 | 成都市新筑路桥机械股份有限公司 | Split type flexure-resisting multidirectional-deflection bridge expansion device |
| CN103243646A (en) * | 2013-05-22 | 2013-08-14 | 上海汇城建筑装饰有限公司 | Earthquake proof PTFE (Poly Tetra Fluoro Ethylene) plate rubber bearing small displacement comb plate extensible device |
| CN103590329B (en) * | 2013-11-25 | 2015-12-02 | 中铁第一勘察设计院集团有限公司 | Railway Prestressed Concrete partial cable-stayed bridge beam-ends shrinkage joint |
| CN103590329A (en) * | 2013-11-25 | 2014-02-19 | 中铁第一勘察设计院集团有限公司 | Expansion joint of railway prestressed concrete portion cable-stayed bridge beam end |
| CN103850179A (en) * | 2014-03-20 | 2014-06-11 | 成都市新筑路桥机械股份有限公司 | Rack type bridge expansion device |
| CN103850179B (en) * | 2014-03-20 | 2015-09-30 | 成都市新筑路桥机械股份有限公司 | Rack-and-pinion bridge extension joint |
| CN104099862A (en) * | 2014-07-22 | 2014-10-15 | 衡水鑫盛达新材料科技有限公司 | Elastic multi-displacement comb tooth bridge expanding and contracting device |
| CN105256718A (en) * | 2015-10-28 | 2016-01-20 | 中铁第四勘察设计院集团有限公司 | Modular multidirectional displacement telescopic device and bridge |
| CN105256718B (en) * | 2015-10-28 | 2016-09-21 | 中铁第四勘察设计院集团有限公司 | Modularity multi-directional deflection retractor device and bridge |
| CN105862584A (en) * | 2016-06-06 | 2016-08-17 | 上海汇城建筑装饰有限公司 | Double-simple-support type anti-falling comb-shaped bridge expansion device |
| CN108951316A (en) * | 2018-06-22 | 2018-12-07 | 中铁二院工程集团有限责任公司 | A kind of damping type magnetic floating system rail telescopic adjustment structure |
| CN111945557A (en) * | 2020-07-22 | 2020-11-17 | 山西省交通新技术发展有限公司 | Movable tooth end pressing plate type telescopic device for highway bridge |
| CN111851283A (en) * | 2020-08-20 | 2020-10-30 | 河北宝力工程装备股份有限公司 | Anti-warping tooth multidirectional displacement device and application thereof in comb plate type telescopic device |
| CN112482207A (en) * | 2020-10-29 | 2021-03-12 | 山西省交通新技术发展有限公司 | Noise reduction and earthquake resistance method for bridge |
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