CN102776832B - Combined type concrete retractable device - Google Patents
Combined type concrete retractable device Download PDFInfo
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- CN102776832B CN102776832B CN201210264236.7A CN201210264236A CN102776832B CN 102776832 B CN102776832 B CN 102776832B CN 201210264236 A CN201210264236 A CN 201210264236A CN 102776832 B CN102776832 B CN 102776832B
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Abstract
A combined type concrete retractable device comprises a waterproof system, a moving toothed plate and a fixed toothed plate, wherein the moving toothed plate and the fixed toothed plate are in a comb tooth shape, comb teeth are distributed in an intersecting mode, the moving toothed plate is installed on a beam body on one side of an expandable gap through a multidirectional shifting system, the fixed toothed plate comprises a toothed plate die and a concrete toothed plate, the concrete toothed plate is formed by pouring in combination with the toothed plate die and is integrated with the beam body, the multidirectional shifting system is composed of an elastic device and a spherical support mechanism or is composed of a hinge rotating shaft mechanism and a toothed plate pre-tightening mechanism, and the multidirectional shifting system is connected with the moving toothed plate through an anchoring bolt which penetrates through centers of the elastic device and the spherical support mechanism. The combined type concrete retractable device can be produced by in-situ casting and is convenient to construct, safe, reliable, long in service life, low in cost and capable of saving steel materials. By the aid of the multidirectional shifting system, the multidirectional rotation, such as vertical rotation, transverse rotation and oblique rotation, of the retractable device can be achieved, so that the device is adapted for the multidirectional rotation, such as vertical rotation, transverse rotation and oblique rotation, of a bridge beam end.
Description
Technical field
The present invention relates to the stretching device using in a kind of bridge engineering, relate in particular to a kind of Combined concrete formula stretching device.
Background technology
The comb plate stretching device of extensive use in bridge engineering at present, its tooth plate strides across as the flexible reserved gap of beam body, the comb shape tooth of stretching device mutually interts and arranges, make whole stretching device upper surface form a continuous plane, beam-ends gap is covered, and Vehicle Driving Cycle is steady, comfortable, has effectively avoided jumping car phenomenon, reduce vehicle by time impact to stretching device, noise is low.
But traditional comb plate stretching device has the following disadvantages:
1. together with this class stretching device employing bolt is anchored at tooth plate with beam body rigidity, in the time there is vertical, lateral deformation in vehicle spreading or beam-ends, bolt is constantly subject to tensile stress, through repeatedly tired stressed, finally make concrete cracking, anchor bolt get loose or anchor bolt fracture etc., cause stretching device to lose efficacy.Particularly super-huge drag-line bridge prevailing in recent years, when bridge is at load and inside and outside other under power effect, the end of beam body is except vertical corner distortion, also there is the multidirectional deformations such as longitudinal, horizontal, oblique and torsion simultaneously, in this case, tradition adopts bolt that the board-like stretching device of broach of tooth plate and the anchoring of beam body rigidity just cannot be adapted to more.
2. developed at present a kind of " (RB/LB) modular Multidirectional displacement bridge expansion device ", it has set up on swing tooth plate, and energy is vertical, the mechanism of lateral rotation.But, this stretching device still adopts bolt to carry out anchoring leveling to tooth plate in swing tooth plate one side, bolt and embedded bar welding anchoring, and in installation process, use concrete by aggregates to bolt, embedded bar and the cast of beam body, swing tooth plate forms rigid connection by anchor bolt and beam body, cause swing tooth plate can not freely carry out vertical, horizontal displacement and rotate, its multidirectional displacement capabilities more still can not adapt to the multidirectional deformations such as longitudinal, horizontal, the oblique and torsion of the end existence of beam body.
3. the fixed tooth plate of stretching device and swing tooth plate are all made finished product post-tensioning to on-the-spot installation with steel plate, not only will spend great deal of steel, and processed complex, and the cost of leading manufacture and transport is high.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of easy to process, more safe and reliable Combined concrete formula stretching device, to overcome the existing deficiency of above-mentioned prior art.
The technical scheme that the present invention takes is: a kind of Combined concrete formula stretching device, comprise waterproofing system and be distributed in swing tooth plate and the fixed tooth plate on bridge expanssion joint gap two curb girder bodies, the distribution that crosses one another of the comb shape tooth of swing tooth plate and fixed tooth plate, described fixed tooth plate comprise be fixed on the tooth plate mould on the one curb girder body of flexible gap and be combined with tooth plate mould that cast forms, with the concrete tooth plate that bridge beam body is combined into one, the end of described swing tooth plate is connected with bridge beam body by multi-directional deflection system;
Described multi-directional deflection system is made up of elastic support, comprise elastic device I, multi-directional deflection case and spherical bearing mechanism, described elastic device I is arranged in multi-directional deflection case, described spherical bearing mechanism is arranged on multi-directional deflection upper box part, comprise concave surface slide plate and the sphere slide plate coordinating with it, multi-directional deflection case is arranged on the beam body of flexible gap one side, and multi-directional deflection system is connected with swing tooth plate end by the anchor bolt I that runs through elastic device I and spherical bearing mechanism center.
Its further technical scheme is: described tooth plate mould comprises supporting plate, is connected to the comb shape tooth coaming plate on supporting plate top and is connected to the crotch of supporting plate bottom for being connected with bridge embedded bar, the profile of tooth of comb shape tooth coaming plate and length are consistent with profile of tooth and the length of swing tooth plate, the reserved pit of comb shape tooth coaming plate and beam body forms concrete tooth plate loose tool, and described concrete tooth plate is cast in concrete tooth plate loose tool and is combined into one with beam body.
Described tooth plate mould or employing steel sheet and reinforcing bar make or adopt strong plastic material to make;
Between the concave surface of described concave surface slide plate and sphere slide plate and sphere, be provided with polytetrafluoroethylene (PTFE) sliding surface layer.
Described elastic device I or be rubber bodies spring or for steel spring or for polyurethane spring.
Owing to adopting technique scheme, the present invention's Combined concrete formula stretching device has following beneficial effect:
1. because its fixed tooth plate of Combined concrete formula stretching device of the present invention is made up of tooth plate mould and concrete tooth plate, concrete tooth plate can be made in on-the-spot pouring, transport of materials and construction are very convenient, concrete tooth plate is in aggregates with the cast of beam body by concrete or other equal performance materials (as: pitch, epoxy resin concrete, high-strength concrete mortar), between fixed tooth plate and beam body, can not produce stress because of relative displacement, thereby more safe and reliable, long service life, both reduce the operation of installing, reduced again the cost of maintenance and repair.
2. because its fixed tooth plate of Combined concrete formula stretching device of the present invention is made up of tooth plate mould and concrete tooth plate, can save great deal of steel, reduce the cost of manufacturing and transporting.
3. because its swing tooth plate of Combined concrete formula stretching device of the present invention is connected with bridge beam body by multi-directional deflection system, when beam body is subject to the repeated stock of wheel weight and when the multi-directional deflection such as beam-ends is vertical, horizontal, oblique, stretching device can be realized multi-directional deflection by hinge rotating shaft mechanism; Or rotate the multidirectional rotation such as vertical, horizontal, oblique that realizes stretching device by spherical bearing mechanism, thereby adapt to the multi-directional deflections such as bridge beam end is vertical, horizontal, oblique.
And tooth plate pre-tightening mechanism or elastic support are by running through the anchor bolt elasticity of compression device of elastic device, swing tooth plate is carried out to flexible prestress anchoraging, ensure that the unyielding damage of anchor bolt, swing tooth plate do not get loose, stretching device does not damage, thereby has improved reliability and the safety of stretching device.After the external force of the multiple-directional rotating such as vertical, horizontal, oblique of swing tooth plate disappears, elastic device can make swing tooth plate automatically reset.
The technical characterictic of the Combined concrete formula stretching device below in conjunction with drawings and Examples to the present invention is further described.
Brief description of the drawings
Fig. 1: the Combined concrete formula stretching device structural representation of the embodiment of the present invention one (installment state, analyse and observe);
The top view of Fig. 2: Fig. 1;
The A-A view of Fig. 3: Fig. 4;
Fig. 4: tooth plate mode structure schematic diagram;
Fig. 5～Fig. 6: elastic support structural representation:
Fig. 5-front view (analysing and observe), the top view of Fig. 6-Fig. 5;
Fig. 7～Fig. 8: elastic device I structural representation:
Fig. 7-front view (analysing and observe), the top view of Fig. 8-Fig. 7,
The B portion enlarged drawing of Fig. 9: Fig. 5:
Figure 10～Figure 13: rotating shaft box structure schematic diagram:
The upward view of Figure 10-Figure 11, Figure 11-rotating shaft case upper plate front view (analysing and observe),
Figure 12-rotating shaft case lower plate front view (analysing and observe), the top view of Figure 13-Figure 12;
Figure 14～Figure 15: the concrete tooth plate loose tool structural representation of tooth plate mould and reserved pit formation;
The C-C sectional view of Figure 14-Figure 15, Figure 15-top view;
The swing tooth plate structural representation of Figure 16～Figure 17: embodiment bis-:
The upward view of Figure 16-Figure 17, Figure 17-front view;
Figure 18～Figure 21: tooth plate pre-tightening mechanism structural representation:
Figure 18-front view (analysing and observe), the top view of Figure 19-Figure 18,
Figure 20-elastic device II front view (analysing and observe), the top view of Figure 21-Figure 20;
Figure 22: the Combined concrete formula stretching device structural representation of the embodiment of the present invention two (installment state, analyse and observe);
The top view of Figure 23: Figure 22;
The D portion enlarged drawing of Figure 24: Figure 22.
In figure:
P-multi-directional deflection system, 1-beam body, 11-reserved pit, 12-embedded bar, 2-fixed tooth plate, 21-concrete tooth plate, 211-concrete tooth plate loose tool, 22-tooth plate mould, 221-supporting plate, 222-crotch, 223-comb shape tooth coaming plate, 3-waterproofing system, 4-swing tooth plate, the rotating shaft of 41-tooth plate, 5-elastic support, 51-multi-directional deflection case, 52-elastic device I, 53-anchor bolt I, 54-spherical bearing mechanism, 541-concave surface slide plate, 542-sphere slide plate, 6-hinge rotating shaft mechanism, 61-rotating shaft case upper plate, 611-rotating shaft, half hole, 612-installing hole, 62-rotating shaft case lower plate, 621-rotating shaft, half hole, 622-installing hole, 63-bolt member, 7-tooth plate pre-tightening mechanism, 71-casing, 72-elastic device II, 73-anchor bolt II.
Detailed description of the invention
Embodiment mono-:
A kind of Combined concrete formula stretching device, comprise waterproofing system and be distributed in swing tooth plate 4 and the fixed tooth plate 2 on bridge expanssion joint gap two curb girder bodies, the distribution that crosses one another of the comb shape tooth of swing tooth plate and fixed tooth plate, described fixed tooth plate comprise be fixed on the tooth plate mould 22 on the one curb girder body of flexible gap and be combined with tooth plate mould that cast forms, with the concrete tooth plate 21 that bridge beam body is combined into one, the end of described swing tooth plate 4 is connected with bridge beam body by multi-directional deflection system P.
Described multi-directional deflection system P is made up of elastic support 5, comprise elastic device I 52, multi-directional deflection case 51 and spherical bearing mechanism 54, described elastic device I 52 is arranged in multi-directional deflection case 51, described spherical bearing mechanism 54 is arranged on multi-directional deflection case 51 tops, comprise concave surface slide plate 541 and the sphere slide plate 542 coordinating with it, between the concave surface of concave surface slide plate 541 and sphere slide plate 542 and sphere, be provided with polytetrafluoroethylene (PTFE) sliding surface layer, multi-directional deflection case 51 is arranged on the beam body of flexible gap one side by support, multi-directional deflection system is connected with swing tooth plate 4 ends by the anchor bolt I 53 that runs through elastic device I 52 and spherical bearing mechanism 54 centers.
Described elastic device I 52 is rubber bodies spring.
Described tooth plate mould comprises supporting plate 221, be connected to the comb shape tooth coaming plate 223 on supporting plate top and be connected to the crotch 222 of supporting plate bottom for being connected with bridge embedded bar 12, and the profile of tooth of comb shape tooth coaming plate 223 and length are consistent with profile of tooth and the length of swing tooth plate,
Described supporting plate 221 and comb shape tooth coaming plate 223 adopt steel sheet to make, crotch 222 use steel bar weldings are connected to supporting plate 221 bottom surfaces, when installation by after the height leveling supporting plate of designing requirement, crotch 222 and beam body embedded bar being welded and fixed, make comb shape tooth coaming plate 223 and the reserved pit 11 of the beam body that is positioned at its right side form concrete tooth plate loose tool 211, in concrete tooth plate loose tool, form the concrete tooth plate 21 in aggregates with beam body thereby then adopt concrete or pitch or epoxy resin or high-strength concrete mortar to be cast in.
Embodiment bis-:
A kind of Combined concrete formula stretching device, comprise waterproofing system and be distributed in swing tooth plate 4 and the fixed tooth plate 2 on bridge expanssion joint gap two curb girder bodies, the distribution that crosses one another of the comb shape tooth of swing tooth plate and fixed tooth plate, described fixed tooth plate comprise be fixed on the tooth plate mould 22 on the one curb girder body of flexible gap and be combined with tooth plate mould that cast forms, with the concrete tooth plate 21 that bridge beam body is combined into one, the end of described swing tooth plate 4 is connected with bridge beam body by multi-directional deflection system P.
Described multi-directional deflection system P is made up of hinge rotating shaft mechanism 6 and tooth plate pre-tightening mechanism 7, described hinge rotating shaft mechanism 6 comprises by rotating shaft case upper plate 61 and rotating shaft case lower plate 62 left/right rotation axle box that form, that structure is identical, rotating shaft case upper plate 61 and rotating shaft case lower plate 62 both sides have installing hole, its middle part has rotating shaft half hole, left/right rotation axle box is fastened on beam body by bolt member 63, rotating shaft half hole of rotating shaft case upper plate 61 and rotating shaft case lower plate 62 forms the shaft hole of rotating shaft case, and described swing tooth plate 4 is rotationally connected with shaft hole by the tooth plate rotating shaft 41 of both sides, end; Described tooth plate pre-tightening mechanism 7 is arranged on hinge rotating shaft mechanism 6 front portions, comprise casing 71 and be arranged on the elastic device II 72 in casing, casing 71 is fixed on beam body, and tooth plate pre-tightening mechanism 7 is connected with swing tooth plate 4 by the anchor bolt II 73 that runs through elastic device Ⅱ72 center.
Described elastic device II 72 is rubber bodies spring.
Described tooth plate mould 21 comprises supporting plate 221, be connected to the comb shape tooth coaming plate 223 on supporting plate top and be connected to the crotch 222 of supporting plate bottom for being connected with bridge embedded bar 12, the profile of tooth of comb shape tooth coaming plate 223 and length are consistent with profile of tooth and the length of swing tooth plate, described supporting plate 221 and comb shape tooth coaming plate 223 adopt steel sheet to make, crotch 222 use steel bar weldings are connected to supporting plate 221 bottom surfaces, when installation by after the height leveling supporting plate of designing requirement, crotch 222 and beam body embedded bar being welded and fixed, make comb shape tooth coaming plate 223 and the reserved pit 11 of the beam body that is positioned at its right side form concrete tooth plate loose tool 211, then adopt concrete, or pitch, or thereby epoxy resin or high-strength concrete mortar are cast in and form the concrete tooth plate 21 in aggregates with beam body in concrete tooth plate loose tool.
In above-described embodiment one, the elastic ball bearing lateral arrangement being connected with swing tooth plate, its number is determined according to the width of swing tooth plate, and general every meter is no less than 2.
In above-described embodiment two, the tooth plate pre-tightening mechanism lateral arrangement being connected with swing tooth plate, its number is determined according to the width of swing tooth plate, and general every meter is no less than 2.
Conversion as above-described embodiment one:
1. described in, multi-directional deflection case 51 also can be without support, and takes the mode of anchoring to be arranged on the beam body of flexible gap one side;
2. described in elastic device I also can adopt allly can compress under external force, shear strain, after disappearing, external force can recover the device of ortho states, for example: steel spring or polyurethane spring, its shape is determined according to the difference of material, to facilitate processing to be as the criterion, be generally circle, also can be square;
3. described in, tooth plate mould also can adopt other strong plastic material to make.
Conversion as above-described embodiment two:
1. described in elastic device II also can adopt allly can compress under external force, shear strain, after disappearing, external force can recover the device of ortho states, for example: steel spring or polyurethane spring, its shape is determined according to the difference of material, to facilitate processing to be as the criterion, be generally circle, also can be square.
2. described in, tooth plate mould also can adopt other strong plastic material to make.
Claims (5)
1. a Combined concrete formula stretching device, comprise waterproofing system and be distributed in swing tooth plate (4) and the fixed tooth plate (2) on bridge expanssion joint gap two curb girder bodies, the distribution that crosses one another of the comb shape tooth of swing tooth plate and fixed tooth plate, described fixed tooth plate comprise be fixed on the tooth plate mould (22) on the one curb girder body of flexible gap and be combined with tooth plate mould that cast forms, with the concrete tooth plate (21) that bridge beam body is combined into one, the end of described swing tooth plate (4) is connected with bridge beam body by multi-directional deflection system (P);
It is characterized in that: described multi-directional deflection system (P) is made up of elastic support (5), described elastic support (5) comprises elastic device I (52), multi-directional deflection case (51) and spherical bearing mechanism (54), described elastic device I (52) is arranged in multi-directional deflection case (51), described spherical bearing mechanism (54) is arranged on multi-directional deflection case (51) top, comprise concave surface slide plate (541) and the sphere slide plate (542) coordinating with it, multi-directional deflection case (51) is arranged on the beam body of flexible gap one side, multi-directional deflection system is connected with swing tooth plate (4) end by the anchor bolt I (53) that runs through elastic device I (52) and spherical bearing mechanism (54) center.
2. Combined concrete formula stretching device according to claim 1, it is characterized in that: described tooth plate mould comprises supporting plate (221), be connected to the comb shape tooth coaming plate (223) on supporting plate top and be connected to the crotch (222) of supporting plate bottom for being connected with bridge embedded bar (12), the profile of tooth of comb shape tooth coaming plate (223) and length are consistent with profile of tooth and the length of swing tooth plate, comb shape tooth coaming plate (223) forms concrete tooth plate loose tool (211) with the reserved pit (11) of beam body, described concrete tooth plate (21) is cast in concrete tooth plate loose tool (211), and be combined into one with beam body.
3. Combined concrete formula stretching device according to claim 1 and 2, is characterized in that: described tooth plate mould (22) or employing steel sheet and reinforcing bar make or adopt strong plastic material to make.
4. Combined concrete formula stretching device according to claim 3, is characterized in that: between the concave surface slide plate (541) of described spherical bearing mechanism (54) and the concave surface of sphere slide plate (542) and sphere, be provided with polytetrafluoroethylene (PTFE) sliding surface layer.
5. Combined concrete formula stretching device according to claim 4, is characterized in that: described elastic device I (52) or for rubber bodies spring or for steel spring or for polyurethane spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210264236.7A CN102776832B (en) | 2012-07-27 | 2012-07-27 | Combined type concrete retractable device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210264236.7A CN102776832B (en) | 2012-07-27 | 2012-07-27 | Combined type concrete retractable device |
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| CN102776832A CN102776832A (en) | 2012-11-14 |
| CN102776832B true CN102776832B (en) | 2014-06-18 |
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| CN201210264236.7A Active CN102776832B (en) | 2012-07-27 | 2012-07-27 | Combined type concrete retractable device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410087B (en) * | 2013-08-29 | 2015-08-19 | 浙江秦山橡胶工程股份有限公司 | The old and new's spanning seam syndeton |
| CN105603871B (en) * | 2016-03-09 | 2018-02-02 | 西安中交柏嘉科技发展有限公司 | Bridge telescopic unit component and bridge extension joint |
| CN109131368B (en) * | 2017-06-16 | 2024-04-23 | 中铁宝桥集团有限公司 | Suspended vehicle translation type line changing equipment and line changing method |
| CN107700344B (en) * | 2017-09-13 | 2024-03-19 | 中国建筑第五工程局有限公司 | Suspension type monorail track roof beam expansion joint structure and monorail system |
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| CN202809483U (en) * | 2012-07-27 | 2013-03-20 | 柳州东方工程橡胶制品有限公司 | Concrete combination expansion device |
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2012
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| JPS49130026A (en) * | 1973-04-19 | 1974-12-12 | ||
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| CN201137038Y (en) * | 2007-12-28 | 2008-10-22 | 吴国庆 | Multidirectional location-changing bridge telescoping 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 |
| CN102277829A (en) * | 2011-05-16 | 2011-12-14 | 西安中交土木科技有限公司 | Module broach plate type multi-directional shift bridge expandable device and installation method thereof |
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