CN102102339B - Prestressed multidirectional displacement comb plate expansion device - Google Patents
Prestressed multidirectional displacement comb plate expansion device Download PDFInfo
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- CN102102339B CN102102339B CN2009102620991A CN200910262099A CN102102339B CN 102102339 B CN102102339 B CN 102102339B CN 2009102620991 A CN2009102620991 A CN 2009102620991A CN 200910262099 A CN200910262099 A CN 200910262099A CN 102102339 B CN102102339 B CN 102102339B
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Abstract
The invention discloses a prestressed multidirectional displacement comb plate expansion device, which comprises a sliding toothed plate, a fixed toothed plate, a sealing rubber tape and a plurality of multidirectional displacement mechanisms, wherein the fixed toothed plate and the sliding toothed plate are arranged on stainless steel plates positioned on two bridge plates respectively, and the stainless steel plates are movably connected with the toothed end of the sliding toothed plate and fixedly connected with the fixed toothed plate; the sealing rubber tape is positioned below the two stainless steel plates; the multidirectional displacement mechanism comprises a protective cover, m elastic structures and an anchor bolt; each elastic structure is arranged in the protective cover; and the anchor bolt passes through the elastic structure, one end of the anchor bolt passes through an upper cover plate of the protective cover and is fastened and connected with the sliding toothed plate through a nut, and the other end of the anchor bolt is fixed at the bottom of the elastic structure or a mounting connecting plate at the bottom. The elastic structures are made of steel springs or macromolecular materials. The device has reasonable structure, and solves the problems that the bolt is yielded and sheared and the toothed plates are warped and the like because of multidirectional displacement of the bridge end of the expansion device in the vertical direction, transverse direction, oblique direction and the like.
Description
[technical field]
The present invention relates to the prestressed anchor fixing apparatus accessory that a kind of pre-stress construction is used, particularly a kind of bridge is used stretching device.
[background technology]
At present, a kind of widely used stretching device is arranged on bridge---the board-like stretching device of comb shape.Not enough below the stretching device of this structure exists: 1, its slip tooth plate rides on the bridge floor and directly is connected with the beam body with bolt, this structure can not adapt to the bridge beam-ends vertical, horizontal, oblique, multi-directional deflection such as reverse.2, the slip tooth plate uses bolt to be connected with the beam body, belongs to be rigidly connected, and receiving to make bolt generation plastic strain easily under the repeated stock situation of wheel weight, causes tooth plate to get loose, thereby causes stretching device to lose efficacy.
The CN201321598Y utility model patent discloses " a kind of bridge extension joint of multi-directional deflection "; Its structure is spherical bearing to be set in the transverse joint plate both sides support; Through the structure of spherical bearing and transverse joint plate and swing tooth plate split, realize that stretching device is horizontal, the length travel compensation.Not enough below this stretching device structure exists: 1, the transverse joint plate both sides are provided with the spherical bearing support; With the span that increases transverse joint plate; The thickness of transverse joint plate will increase, and in addition, establish spherical bearing because of transverse joint plate and will support; In order to make swing tooth plate and fixed tooth plate concordant with transverse joint plate, swing tooth plate and fixed tooth plate will need very thick steel plate.Therefore, the cost of whole stretching device structure is very high.2, spherical bearing and transverse joint plate and swing tooth plate are the branch body structures, receive the impact of wheel weight, are easy to generate vibration, and through repeatedly impacting, plastic strain will take place the anchor bolt that is connected with the beam body, cause tooth plate to get loose, thereby cause stretching device to lose efficacy.
[summary of the invention]
The object of the present invention is to provide a kind of based on the improved pre-stress type multi-directional deflection of the board-like stretching device of comb shape comb plate, comb joint stretching device; This device adopts elastic structure that the slip tooth plate is carried out the pre-stress type anchoring; Compression through elastic structure, shear strain realize the multidirectional rotation such as vertical, horizontal, oblique of stretching device; Adapt to multi-directional deflections such as the bridge beam-ends is vertical, horizontal, oblique, to solve the problems referred to above that prior art exists.
The technical scheme that addresses the above problem is: a kind of pre-stress type multi-directional deflection comb plate, comb joint stretching device; The a plurality of multi-directional deflection mechanism that comprises slip tooth plate, fixed tooth plate, caulking gum band and lateral arrangement; Fixed tooth plate and slip tooth plate are arranged on the corrosion resistant plate that lays respectively at two bridge boards; Corrosion resistant plate and slip tooth plate profile of tooth end flexibly connect; Be fixedly connected with fixed tooth plate, the caulking gum band is positioned at below two corrosion resistant plates, and described each multi-directional deflection mechanism comprises protective cover, a m elastic structure and m anchor bolt; Elastic structure is installed in the protective cover; Anchor bolt runs through elastic structure, an end of anchor bolt pass protective cover upper cover plate and slip tooth plate through nut be fastenedly connected, the other end or directly be fixed on the elastic structure bottom or be fixed on the installation base plate that is positioned at the elastic structure below the elastic structure bottom, m is the arbitrary integer between 1～10.
Its further technical scheme is: described elastic structure be a kind ofly can compress under external force, shear strain; After external force disappears, can recover the elastic body of ortho states, described elastic structure is steel spring or the elastic structure that is made into macromolecular material.
The elastic structure that said macromolecular material is made into is meant the elastic structure that is made into polyurethane or rubber bodies or by being placed with the elastic structure that n layer stiffener is made in polyurethane or the rubber bodies; The material of described stiffener is metal material or carbon fibre material, and n is the arbitrary integer between 1～100.
The present invention adopts elastic structure that the slip tooth plate is carried out the pre-stress type anchoring; Compression through elastic structure, shear strain realize the multidirectional rotation such as vertical, horizontal, oblique of stretching device, adapt to multi-directional deflections such as the bridge beam-ends is vertical, horizontal, oblique; It is rational in infrastructure, has solved stretching device because of multi-directional deflections such as the bridge beam-ends are vertical, horizontal, oblique, causes the bolt surrender, cuts off and problem such as tooth plate nose; Compared with prior art has easy construction; Advantages such as maintenance cost is low, and driving is steady, and noise is low.
Below in conjunction with accompanying drawing and embodiment the technical characterictic of the present invention's pre-stress type multi-directional deflection comb plate, comb joint stretching device is described further.
[description of drawings]
Fig. 1-1～Fig. 1-3 is pre-stress type multi-directional deflection comb plate, comb joint stretching device structure of the present invention and installation site sketch map:
Fig. 1-the 1st, partial top view,
Fig. 1-2 is the A-A sectional view of Fig. 1-1,
Fig. 1-the 3rd, the B portion enlarged drawing of Fig. 1-2;
Fig. 2-1～Fig. 2-2 is the structural representation of multi-directional deflection mechanism:
Fig. 2-1: the main sectional view, Fig. 2-2: vertical view looked;
Fig. 3-1～Fig. 3-2: macromolecular material elastomer structure sketch map:
Fig. 3-the 1st, pure macromolecular material elastomer structure sketch map (the main sectional view of looking),
Fig. 3-the 2nd is added with the elastomer structure sketch map (main look sectional view) of stiffener in the macromolecular material;
Profile (shape of cross section) sketch map (vertical view) of Fig. 3-3～Fig. 3-5 macromolecular material elastic structure:
Fig. 3-3: circle, Fig. 3-4: square, Fig. 3-5: regular hexagon;
Fig. 4 is a steel spring elastic structure sketch map.
Among the figure:
1-slip tooth plate, 2-fixed tooth plate, 3-caulking gum band, 4-protective cover; 41-protective cover upper cover plate, the 5-elastic structure, the elastic structure that 51-processes with pure macromolecular material is placed with the elastic structure that the multilayer stiffener is processed in the 52-macromolecular material; The 521-macromolecular material, 522-stiffener, 53-steel spring elastic structure, the installation base plate of 501-elastic structure; The through hole of 502-elastic structure ,-6-anchor bolt, 71, the 72-bridge board; The 8-bridge floor, 9-cast-in-situ concrete, 10, the 11-corrosion resistant plate.
[specific embodiment]
Like Fig. 1-1～Fig. 1-3; The present invention's pre-stress type multi-directional deflection comb plate, comb joint stretching device comprise slip tooth plate 1, fixed tooth plate 2, caulking gum band 3 and and a plurality of multi-directional deflection mechanism; Fixed tooth plate 2 is arranged on the corrosion resistant plate 10,11 that lays respectively at two bridge boards 71,72 with slip tooth plate 1; Corrosion resistant plate 10 flexibly connects with slip tooth plate 1 profile of tooth end, and corrosion resistant plate 11 is fixedly connected with fixed tooth plate 2, and caulking gum band 3 is positioned at two corrosion resistant plates 10,11 following (referring to Fig. 1-3); Described each multi-directional deflection mechanism comprises 4,2 elastic structures 5 of protective cover and 2 anchor bolts 6; 2 elastic structures 5 are installed in the protective cover 4; To guarantee behind the concreting enough activity spaces being arranged; Anchor bolt 6 runs through elastic structure 5, an end and passes protective cover upper cover plate and slip tooth plate 1 and be fastenedly connected through nut, and the other end is fixed on the installation base plate 501 that is positioned at the elastic structure below elastic structure 5 bottoms (referring to Fig. 2-1～Fig. 2-2);
As a kind of conversion of present embodiment, described each elastic structure bottom can not have the installation base plate of elastic structure yet, and the other end of anchor bolt 6 directly is fixed on elastic structure 5 bottoms.
Described each elastic structure 5 be a kind ofly can compress under external force, shear strain;, external force can recover the elastic body of ortho states after disappearing; This elastic structure 5 is the elastic bodys that are made into by macromolecular materials such as polyurethane, rubber bodies; And can be the elastic structure of processing with pure macromolecular material 51 (referring to Fig. 3-1) by the elastic structure that macromolecular materials such as polyurethane, rubber bodies are made into; Also can in macromolecular material 521, be placed with the elastic structure 52 (referring to Fig. 3-2) that n layer stiffener 522 processed, the material of stiffener 522 can be a steel plate, also can be other metal material or carbon fibre material etc.Among Fig. 3-2, the number of plies n of stiffener is 7 layers, and as required, the number of plies n of stiffener can increase or reduce, and the span of n is: n is the arbitrary integer between 1～100.
The shape of the elastic structure that the employing macromolecular material is made into can be cylindric; The centre is reserved with the through hole 502 (referring to Fig. 3-3) that installs anchor bolt 6 additional, also can be that cross section is that foursquare centre is reserved with the centre that the square (referring to Fig. 3-4) that installs the anchor bolt through hole additional or cross section be regular hexagon (referring to Fig. 3-5) or other shapes and is reserved with the polyhedron that installs the anchor bolt through hole additional.
As a kind of conversion of the embodiment of the invention, said elastic structure 5 also can be a columniform steel spring 53 (referring to Fig. 4).
Another conversion as the embodiment of the invention; On the cross section that vertically moves direction like same shown in Fig. 1-1A-A cuts open, the number m of a said in-house elastic structure of multi-directional deflection can also increase or reduce; At least 1; As required, can be increased to 3～10, in addition more.
In the embodiment of the invention; Described fixed tooth plate and slip tooth plate are arranged on an end that is meant fixed tooth plate and slip tooth plate on the corrosion resistant plate that lays respectively at two bridge boards and are arranged on the corrosion resistant plate of same bridge board, and the other end of slip tooth plate strides across bridge floor and is set in place on the corrosion resistant plate of another bridge board; The situation that the said caulking gum band 3 that plays the sealing effect is positioned at below two corrosion resistant plates 10,11 has two kinds; Remove shown in Fig. 1-1～1-3; Outside being arranged on a whole piece caulking gum band 3 below two corrosion resistant plates 10,11; Also can be with caulking gum band 3 only be arranged on two bridge boards 71, between 72 because these all are the known technologies of this area, the sealing means of its concrete structure and caulking gum band 3 all repeats no more.
In the pre-stress type multi-directional deflection comb plate, comb joint stretching device of the present invention; The number of a plurality of multi-directional deflection mechanism of said lateral arrangement is decided according to the stressing conditions of the width of bridge floor, carrying capacity, comb plate, comb joint stretching device; Every meter should not be less than 2 at least; This is those skilled in the art according to the prior art known technology that just can confirm of needs cost creative work not, so the present invention does not limit concrete number.
Claims (5)
1. pre-stress type multi-directional deflection comb plate, comb joint stretching device; Comprise slip tooth plate, fixed tooth plate and caulking gum band; Fixed tooth plate and slip tooth plate are arranged on the corrosion resistant plate that lays respectively at two bridge boards; Corrosion resistant plate and slip tooth plate profile of tooth end flexibly connect, and are fixedly connected with fixed tooth plate, and the caulking gum band is positioned at below two corrosion resistant plates; It is characterized in that: described pre-stress type multi-directional deflection comb plate, comb joint stretching device also comprises every meter of lateral arrangement multi-directional deflection mechanism that is no less than 2; Described multi-directional deflection mechanism comprises protective cover (4), a m elastic structure (5) and m anchor bolt (6), and m elastic structure (5) is installed in the protective cover, and anchor bolt runs through elastic structure; One end of anchor bolt pass protective cover upper cover plate and sliding tooth plate through nut be fastenedly connected, the other end or directly be fixed on the elastic structure bottom or be fixed on the installation base plate that is positioned at the elastic structure below the elastic structure bottom, m is the arbitrary integer between 1～10.
2. pre-stress type multi-directional deflection comb plate, comb joint stretching device according to claim 1 is characterized in that: described elastic structure is steel spring or the elastic structure that is made into macromolecular material.
3. pre-stress type multi-directional deflection comb plate, comb joint stretching device according to claim 2, it is characterized in that: the said elastic structure that is made into macromolecular material is the elastic structure that is made into by polyurethane or rubber bodies.
4. pre-stress type multi-directional deflection comb plate, comb joint stretching device according to claim 2; It is characterized in that: the elastic structure that said macromolecular material is made into is by being placed with the elastic structure that n layer stiffener is made in polyurethane or the rubber bodies; The material of described stiffener is metal material or carbon fibre material, and n is the arbitrary integer between 1～100.
5. pre-stress type multi-directional deflection comb plate, comb joint stretching device according to claim 4, it is characterized in that: the material of described stiffener is a steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102620991A CN102102339B (en) | 2009-12-19 | 2009-12-19 | Prestressed multidirectional displacement comb plate expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102620991A CN102102339B (en) | 2009-12-19 | 2009-12-19 | Prestressed multidirectional displacement comb plate expansion device |
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| Publication Number | Publication Date |
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| CN102102339A CN102102339A (en) | 2011-06-22 |
| CN102102339B true CN102102339B (en) | 2012-07-04 |
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| CN2009102620991A Active CN102102339B (en) | 2009-12-19 | 2009-12-19 | Prestressed multidirectional displacement comb plate expansion device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808377A (en) * | 2012-08-17 | 2012-12-05 | 长安大学 | Comb plate type bridge expansion device with spatial multi-direction shift function for bridge expansion 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 |
| CN104480855B (en) * | 2014-09-16 | 2016-01-20 | 刘祖江 | Cantilevered multi-directional deflection non-bolt comb plate, comb joint stretching device and mounting method thereof |
| CN104358209B (en) * | 2014-11-25 | 2017-12-12 | 合肥国本桥梁特种构件有限公司 | A kind of interdigitated electrode structure damping conjugates bridge extension joint |
| 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 |
Citations (6)
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|---|---|---|---|---|
| EP1033442A2 (en) * | 1999-03-02 | 2000-09-06 | REISNER & WOLFF ENGINEERING GESELLSCHAFT mbH & CO. KG | Device for bridging expansion joints in roadways |
| CH691496A5 (en) * | 1996-01-24 | 2001-07-31 | Rsag Reparatur Und Sanierungst | Connection construction for expanding or contracting components of road or bridge; has elastic connection layer, which has integrated flexible movement spiral spring fixed to components |
| KR100734807B1 (en) * | 2006-05-30 | 2007-07-06 | 홍석희 | The structure that separated and integrated mutual between expansion joint, prestressed non-shrinkage concrete and bridge deck slab, the construction method of this |
| CN200999324Y (en) * | 2007-01-19 | 2008-01-02 | 袁关生 | Multidirectional rotatable expansion joint device |
| CN101392500A (en) * | 2008-10-30 | 2009-03-25 | 上海汇城建筑装饰有限公司 | Multiaspect displacement bridge retractor device |
| CN201635003U (en) * | 2009-12-19 | 2010-11-17 | 柳州东方工程橡胶制品有限公司 | Prestressed type multi-way shift comb-shaped plate expansion device |
-
2009
- 2009-12-19 CN CN2009102620991A patent/CN102102339B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH691496A5 (en) * | 1996-01-24 | 2001-07-31 | Rsag Reparatur Und Sanierungst | Connection construction for expanding or contracting components of road or bridge; has elastic connection layer, which has integrated flexible movement spiral spring fixed to components |
| EP1033442A2 (en) * | 1999-03-02 | 2000-09-06 | REISNER & WOLFF ENGINEERING GESELLSCHAFT mbH & CO. KG | Device for bridging expansion joints in roadways |
| KR100734807B1 (en) * | 2006-05-30 | 2007-07-06 | 홍석희 | The structure that separated and integrated mutual between expansion joint, prestressed non-shrinkage concrete and bridge deck slab, the construction method of this |
| CN200999324Y (en) * | 2007-01-19 | 2008-01-02 | 袁关生 | Multidirectional rotatable expansion joint device |
| CN101392500A (en) * | 2008-10-30 | 2009-03-25 | 上海汇城建筑装饰有限公司 | Multiaspect displacement bridge retractor device |
| CN201635003U (en) * | 2009-12-19 | 2010-11-17 | 柳州东方工程橡胶制品有限公司 | Prestressed type multi-way shift comb-shaped plate expansion device |
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| CN102102339A (en) | 2011-06-22 |
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