CN2816114Y

CN2816114Y - Super-large anti-deflection comb-shape bridge extending seam apparatus

Info

Publication number: CN2816114Y
Application number: CN 200420067778
Authority: CN
Inventors: 徐斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-08
Filing date: 2004-06-16
Publication date: 2006-09-13
Anticipated expiration: 2014-06-16

Abstract

The utility model relates to a super-large anti-torsion comb-shaped bridge extending seam device which comprises a fixed comb plate (2) and a movable comb plate (1) respectively arranged on a beam body (10) of both sides of a bridge extending seam, wherein comb teeth (11) are arranged at the first end of the movable comb plate (1) and provided with each of the comb teeth (21) of the fixed comb plate at intervals in a mutually cross mode. The utility model is characterized in that the bottom of the second end of the movable comb plate (1) is provided with a rotating shaft (8), wherein both ends of the rotating shaft (8) is pivoted on a shaft seat (7) directly or indirectly fixed with the beam body (10). The second end of the movable comb plate is designed into capable of rotating by the utility model, when the beam body generates deflection deformation and a beam end warps or sinks, rotation is prodoced between the movable comb plate and the beam body, thereby, make the movable comb plate remain a smooth posture, the damage of the whole extending seam device caused by the deflection deformation of the beam body and the warp and the sinkage of the beam end is avoided, and the utility model ensures that vehicles smoothly and safely pass.

Description

A kind of especially big anti-flexible comb type bridge expansion joint installation

Technical field

The utility model relates to a kind of field, shrinkage joint of bridge, and particularly a kind of stroke is at the especially big anti-flexible comb type bridge expansion joint installation more than 300 millimeters.

Background technology

In existing bridge expansion joint installation, adopting fixedly, the comb type stretching device of pecten and the cooperation of movable pecten is a kind of preferably, especially use stroke in the large bridge shrinkage joint more than 160 millimeters, Chinese patent ZL02264872.0 number " assemble comb-type bridge extension joint " formerly proposing as me is exactly like this, because its stretching motion is finished by movable pecten, there is not vertical transition gap, and and bridge floor, the road surface connects into an integral body, therefore shockproof properties is good, vehicle ' is steady, comfortable, avoided jumping car phenomenon effectively, made vehicle smooth-going, cosily cross.

At the stroke at shrinkage joint in the super-huge bridge more than 300 millimeters, under vehicular load and temperature effect, the beam body produces deflection deformation can produce certain upwarping at beam-ends, the sliver and the plate body of comb shape steel plate also upwarp thereupon, thereby cause the damage of device, for this reason, I have proposed Chinese patent ZL02265765.7 number " comb-type expansion-contraction unit with very large displacement for bridge ", its movable pecten is by hinged in turn portable plate, active plate and broach constitute rotating composite member, work as the beam body like this and under the vehicular load effect, produce deflection deformation, when beam-ends upwarps, portable plate in the then movable pecten can upwarp thereupon, so relatively rotate between active plate and the portable plate, make active plate and broach still be attached to Liang Tishang.

But, at the stroke at shrinkage joint in the super-huge bridge more than 500 millimeters, the beam body deflection deformation especially severe that the vehicular load effect causes, upwarping of portable plate is also more severe, even cause active plate, broach also to upwarp, break away from the beam body in the lump, meet vehicle weight this moment again, will cause the damage of whole stretching device.

In addition, Sheng Hang super-huge drag-line bridge in recent years, when bridge at load and inside and outside other under power effect, the end of beam body is except the vertical corner distortion, multidirectional deformation such as also have and reverse simultaneously vertical, horizontal, oblique, in this case, various expansion gap devices in the past all can't adapt to.

Summary of the invention

Technical problem to be solved in the utility model is that a kind of vertical corner, horizontal, oblique and still can keep smooth especially big anti-flexible comb type bridge expansion joint installation when multidirectional deformation such as reversing that is subjected at Liang Tiyin to take place under the external force effects such as load is provided at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this especially big anti-flexible comb type bridge expansion joint installation, comprise the fixedly pecten and the movable pecten that are separately positioned on the bridge expanssion joint two curb girder bodies, first end of movable pecten be provided with broach and with the fixedly mutual transpostion interval setting of each broach of pecten, the second bottom portion that it is characterized in that described movable pecten is provided with rotating shaft, and the two ends of this rotating shaft are articulated on the axle bed of directly or indirectly fixing with the beam body.

Described axle bed can be involuted by the last axle bed that respectively has semi-cylindrical recesses, following axle bed; Can to be an independent workpiece be fixed on the bottom of movable pecten second end by welding or other fixed forms in the rotating shaft of described movable pecten, also can be under the permission of manufacturing process, with movable pecten be integrally manufactured; Described axle bed has two at least, lay respectively at the two ends of movable pecten rotating shaft, but in order to play supporting role better, position at corresponding rotating shaft middle part also can be provided with one or more axle bed, the axis hole of this axle bed is promptly run through at the rotating shaft middle part, and second end of movable pecten then has breach to hold axle bed in the relevant position.

Described axle bed also can be the global facility that has axis hole, respectively is provided with one at the two ends of the rotating shaft of movable pecten; For the convenience of making, installing, the rotating shaft of movable pecten can constitute in the following ways: the bottom that an axis body that roughly is semicylinder is fixed on movable pecten second end by screw or welding manner, this axis body respectively is provided with one and is semi-cylindrical half hinge portion at two ends, be semi-cylindrical half hinge portion and also respectively be provided with one accordingly in the both sides of movable pecten second end, two homonymy half hinge portions are articulated in the axis hole of corresponding axle bed synthetic complete hinge portion.

The part that is not supported by axle bed in the rotating shaft of described movable pecten can also can be provided with the supporting base with half-cylindrical lower concave part down at it more directly by the layer of concrete supporting of cast-in-site, and this supporting base then is fixed on the support that is fixed as one with the beam body;

For the concrete beam or the thicker steel case beam of layer of mating formation, described support can directly be embedded in Liang Tizhong; For the thin steel case beam of layer of mating formation, described support can have L type cross section, is welded on by its facade on the sidewall of steel case beam, and in order to reinforce, but also between is welded with the triangle stiffener; Between the second end end of described L type support facade and movable pecten, also can be provided with a resilient sleeper-bearing, both can provide, can prevent from again the nature breakage to occur at this place when the move place of movable pecten when supporting base rotates;

For second end that makes movable pecten can be relatively supporting base under it relatively rotate more neatly, between the half-cylindrical lower concave part of the rotating shaft of movable pecten and supporting base, be filled with lubrication oil, and in order to prevent that dust from entering therebetween, simultaneously also for the compressive strain needs of adaptive act pecten when supporting base rotates, but movable pecten padding between contiguous its second end place and support has a resilient sleeper-bearing, safe in utilization for what reinforce and install, also can movable pecten and resilient sleeper-bearing be fixed on support or Liang Tishang by safetybolt, just in case the welding bead between rotating shaft and the movable pecten breaks, break away from, this safetybolt can maintenance activity pecten not from moving original position, thereby avoid accident to take place; For the vertical deformation needs of adaptive act pecten when supporting base rotates, described safetybolt can also be lined with spring pad.

For the further broach of protection activity pecten is not become by the beam bodily form to influence and eliminates lateral deflection, each broach that is arranged on movable pecten first end can be hinged in the pecten main body teeth groove movably by bearing pin.

Compared with prior art, the utility model is designed to and can rotates by second end with movable pecten, make produce deflection deformation at the beam body, beam-ends upwarps or when sinking, to rotate between movable pecten and the beam body, thereby make movable pecten keep smooth attitude, avoid whole expansion gap device therefore to cause damage, the smooth-going safety of assurance vehicle is passed through.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment one.

Fig. 2 is the structural representation after the axle bed among Fig. 1 takes off.

Fig. 3 is the schematic perspective view of half-cylindrical axis body among Fig. 2.

Fig. 4 is the perspective exploded view of Fig. 1 middle part sub-unit.

Fig. 5 is the structural representation of the utility model embodiment two.

Fig. 6 is the structural representation of the utility model embodiment three.

Fig. 7 is the schematic perspective view of movable pecten and rotating shaft thereof among Fig. 6.

Fig. 8 is the rotating shaft schematic perspective view of movable pecten among Fig. 6, Fig. 7.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1～shown in Figure 4, be one to be applied to the embodiment of steel case beam, comprise the fixedly pecten 2 and the movable pecten 1 that are separately positioned on the bridge expanssion joint two curb girder bodies 10, each broach 11 is hinged in the teeth groove of movable pecten 1 first end movably by bearing pin, and with fixedly each broach 21 mutual transpostion interval setting of pecten;

With second end of movable pecten 1 accordingly, the support that one cross section is the L type is welded on the sidewall of beam body 10 with its facade, there is the upper surface to have the supporting base 9 of half-cylindrical lower concave part by bolt on it, is fixed with the axle bed 7 in tape spool hole in the both sides of movable pecten 1 second end; Between the second end end of described L type support facade 42 and movable pecten 1, be provided with resilient sleeper-bearing 13;

One roughly is semi-cylindrical axis body 8 by the bottom of screw at movable pecten 1 second end, and is bearing on the half-cylindrical lower concave part of described supporting base 9, also can be filled with lubrication oil between the two; Certainly, described axis body 8 also can directly be welded on the bottom of movable pecten 1 second end;

Described axis body 8 respectively is provided with in both sides and is semi-cylindrical half hinge portion 81, the both sides of movable pecten 1 second end also respectively are provided with corresponding semi-cylindrical half hinge portion 12 that is, 81,12 pairs of synthetic complete hinge portions, two homonymy half hinge portions, and be articulated in the axis hole 71 of corresponding axle bed 7;

In the present embodiment, movable pecten 1 is gone back padding between contiguous its second end place and support 4 have a resilient sleeper-bearing 5, and by safetybolt 6 movable pecten 1 and resilient sleeper-bearing 5 are fixed on the support 4, and safetybolt 6 wherein is lined with spring pad 14.

As shown in Figure 5, be the embodiment two that is applied to concrete beam, be that with the difference of embodiment one support 4 directly is embedded in the beam body 10, does not describe in detail.

As Fig. 6～shown in Figure 8, be embodiment three of the present utility model, different with embodiment one is, the rotating shaft 8 and the movable pecten 1 solid welding one of described movable pecten, and the hinge portion, two ends of rotating shaft 8 is the cylindrical of independent completion, described axle bed 7 is then involuted, and is fixed by bolt and beam body 10 by the last axle bed 72 that respectively has semi-cylindrical recesses, following axle bed 73; In the present embodiment, described axle bed 7 corresponding every movable pectens 1 and rotating shaft 8 thereof have three, its axis hole is used for holding the two ends and the middle part of the also rotating shaft 8 of support movable pecten respectively, and second end of movable pecten 1 then has breach to hold axle bed 7 in the relevant position.Simultaneously, in the present embodiment, the part 82 that is not supported by axle bed in the rotating shaft 8 of described movable pecten is directly supported by the layer of concrete of cast-in-site, thereby has saved supporting base 9 and support 4 among the embodiment one, structure is more simple, compact, makes and install more convenient.

Claims

1, a kind of especially big anti-flexible comb type bridge expansion joint installation, comprise the fixedly pecten (2) and the movable pecten (1) that are separately positioned on the bridge expanssion joint two curb girder bodies (10), first end of movable pecten (1) be provided with broach (11) and with fixedly each broach (21) transpostion interval setting mutually of pecten, the second bottom portion that it is characterized in that described movable pecten (1) is provided with rotating shaft (8), and the two ends of this rotating shaft (8) are articulated on the axle bed of directly or indirectly fixing with beam body (10) (7).

2, especially big anti-flexible comb type bridge expansion joint installation according to claim 1 is characterized in that described axle bed (7) is involuted by the last axle bed (72) that respectively has semi-cylindrical recesses, following axle bed (73).

3, especially big anti-flexible comb type bridge expansion joint installation according to claim 2, it is characterized in that also being provided with axle bed (7) in the position at the described rotating shaft of correspondence (8) middle part, the axis hole of this axle bed (7) is promptly run through at rotating shaft (8) middle part, and second end of movable pecten (1) then has breach to hold axle bed (7) in the relevant position.

4, especially big anti-flexible comb type bridge expansion joint installation according to claim 1, the rotating shaft (8) that it is characterized in that described movable pecten constitutes in the following ways: an axis body (8) that roughly is semicylinder is fixed on the bottom of movable pecten (1) second end by screw or welding manner, this axis body (8) respectively is provided with one and is semi-cylindrical half hinge portion (81) at two ends, be semi-cylindrical half hinge portion (12) and also respectively be provided with one accordingly in the both sides of movable pecten second end, two homonymy half hinge portions (81), (12) to synthetic complete hinge portion, be articulated in the axis hole of corresponding axle bed (7).

5, especially big anti-flexible comb type bridge expansion joint installation according to claim 4, it is characterized in that being provided with under the rotating shaft (8) at described movable pecten supporting base (9) with half-cylindrical lower concave part, be used in the supporting shaft (8) not by the part of axle bed (7) supporting, supporting base (9) then is fixed on the support (4) that is fixed as one with the beam body.

6, especially big anti-flexible comb type bridge expansion joint installation according to claim 5 is characterized in that described support (4) has L type cross section, and is welded on the sidewall of beam body (10) by its facade (42).

7, especially big anti-flexible comb type bridge expansion joint installation according to claim 6 is characterized in that also being provided with a resilient sleeper-bearing (13) between the second end end of described L type support facade (42) and movable pecten (1).

8, especially big anti-flexible comb type bridge expansion joint installation according to claim 7, it is characterized in that described movable pecten (1) padding between contiguous its second end place and support (4) has a resilient sleeper-bearing (5), and movable pecten (1) and resilient sleeper-bearing (5) are fixed on support (4) or the beam body (10) by safetybolt (6).

9, especially big anti-flexible comb type bridge expansion joint installation according to claim 8 is characterized in that described safetybolt (6) is lined with spring pad (14).

10,, it is characterized in that being arranged on each broach (11) of movable pecten (1) first end for to be hinged on movably in the pecten main body teeth groove by bearing pin (3) according to arbitrary described especially big anti-flexible comb type bridge expansion joint installation in the claim 1 to 9.