CN2457192Y - Comb type steel plate three proof telescopic device for bridge - Google Patents
Comb type steel plate three proof telescopic device for bridge Download PDFInfo
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- CN2457192Y CN2457192Y CN 00259252 CN00259252U CN2457192Y CN 2457192 Y CN2457192 Y CN 2457192Y CN 00259252 CN00259252 CN 00259252 CN 00259252 U CN00259252 U CN 00259252U CN 2457192 Y CN2457192 Y CN 2457192Y
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Abstract
The utility model relates to a comb-shaped steel plate three-proofing telescopic device for a bridge, which can be applied to a road bridge and an overhead road. The utility model comprises comb-shaped steel plates (1), (2); the comb telescopic parts of the comb-shaped steel plates are arranged on a bridge surface without an expansion joint at one side of a bridge joint; the root part of a comb slot is provided with a slag discharging chute; the front ends of the combs of the comb-shaped steel plates are provided with anti-collision ramps inclining downwards; one side of a bridge expansion joint is provided with a comb, and the bottom of the telescopic comb-shaped steel plate is lined with a layer of stainless steel slide plate (3); the bottom of the stainless steel slide plate (3) is laid with two layers of waterproof rubber layers (4). The utility model is characterized in that the anchoring part of the comb-shaped steel plates (1), (2) and the bridge surface adopts anchoring steel plates (5); the anchoring steel plates are connected with a bottom surface of the comb-shaped steel plate at a length direction, and extend out of the comb-shaped steel plate and are provided with intervals. The surfaces of the anchoring steel plates (5) and the intervals are laid with a polyurethane mixture (8). Both ends of the comb-shaped steel plates of each expansion joint are designed into raising heads (19) which form an angle of greater than 90 DEG with the bridge surface. The utility model has the advantages that the surface is smooth and beautiful, shakeproof property is improved, and vehicles can run comfortably and steadily; the utility model can reach an ideal stiffness, as well as can save material, and has specific technical advantage; the problems of waterproofing and dustproofing can be solved effectively.
Description
The utility model relates to a kind of bridge extension joint, particularly discloses a kind of road bridge and elevated road bridge comb shape steel plate " three is anti-" stretching device of being applied to.
Bridge (comprising elevated road) stretching device is the important component part in the bridge deck structure; its major function is to adapt to the beam body owing to be subjected to that the temperature difference, concrete are dryly shunk, prestressed concrete is crept and shrink and caused displacement such as load action, and plays the effect of joint seal with works under the protection bridge.Bridge extension joint also must have good rideability in addition, waterproof and dustproof, shockproof properties (hereinafter to be referred as " three is anti-") and endurance quality.Present domestic bridge extension joint has following several types basically:
1. rubber type stretching device, such stretching device starts from the beginning of the eighties, and it has various model and specification, forms but basic structural principle is consistent all employings rubber and metal insert compacting sulfuration.Once play a part necessarily at that time, at present general middle or small bridge is still being used.But because this series products self structure performance is not good, endurance quality is poor, stroke defective such as to place restrictions on apparent in view, so its development trend of incompatibility municipal traffic, just progressively trend is eliminated.
2. the seamless type stretching device of elastic body, such stretching device relies on the elasticity of material itself to carry out telescopic displacement, structure is seamless, aesthetic in appearance, stroke is general≤40mm, it relatively is applicable to the bridge of little displacement, but the prerequisite that will reach the stretching device requirement be must satisfy aspect selection and the construction technology with concrete binding requirement of strength, shock resistance tiredly require, surface finish requires etc.From present practical application effect, most because of material select for use improper or construction technology immature and not ideal enough.
3. formed steel construction type stretching device, such stretching device self structure performance is good, rigidity strong, good endurance, is domestic widely used bridge extension joint at present.(the cost height is installed difficulty for the shaped steel stretching device structure more complicated during stroke＞80mm), whole height height but for big displacement quantity.
4. durable, the waterproof and dustproof of road bridge, anti-quaking telescopicing device, such stretching device is simple in structure, whole height is low, good rigidly, vehicle ' are steady, the energy automatic slag removal, have dustproof preferably, shockproof properties, be a kind of more novel bridge extension joint, but material usage is big, cost is high, structure width is wide.
The purpose of this utility model is that it discloses a kind of bridge comb shape steel plate " three is anti-" stretching device, the deficiency that comprehensive above-mentioned different types of rridges stretching device exists, design and a kind ofly can satisfy different types of rridges especially old bridge reconstruction or the needs that update, can reach waterproof and dustproof, shockproof properties and long-lived bridge extension joint again, also to reach the reduction raw materials consumption, reduce cost, make it more can be based on market.
The utility model is achieved in that the structural principle of comb shape steel plate " three anti-" bridge extension joint is made up of comb shape steel plate, stainless steel slide plate, neoprene skin and high-strength bolt.A kind of bridge comb shape steel plate " three is anti-" stretching device, it comprises comb shape steel plate (1), (2), comb shape steel plate broach telescopic section is located at joint of bridge one side not to be had on the bridge floor at shrinkage joint, the slot root is provided with the deslagging skewed slot, the broach front end of comb shape steel plate is provided with downward-sloping crashproof slope, bridge expanssion joint one side serves as a contrast one deck stainless steel slide plate (3) under the flexible comb shape steel plate of broach is arranged, lay two layers of water proof rubber layer (4) under the stainless steel slide plate (3), being " U " shape during water proof rubber layer process bridge expanssion joint covers the shrinkage joint, it is characterized in that comb shape steel plate (1), (2) adopt anchor plate (5) with the bridge floor anchorage part, anchor plate is connected on the comb shape steel plate length direction bottom surface, stretch out in the flexible steel plate of comb shape and be spaced, the head of anchor bolt (6) buries in the anchor plate surface, anchor plate (5) surface and interval section are laid polyurethane mixture (8), the two ends of every shrinkage joint comb shape steel plate are designed to become with bridge floor 〉=90 ° of angle noses (9), become stretching device side stretching device, coordinate with nose, the water proof rubber layer is in also flexible whole long curved the company upwards of side stretching device part.
The utility model is described in further detail with accompanying drawing below:
Fig. 1 is the utility model floor map.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the B-B sectional drawing of Fig. 1.
Embodiment: the maximal dilation amount is a kind of bridge comb shape steel plate " three is anti-" stretching device of 80mm, stretching device overall width 700mm, structure height 120mm, comb shape steel plate thickness 22mm, anchor bolt M16, comb shape steel plate (1,2) broach telescopic section is located at joint of bridge one side and beam body preset clearance not on the bridge floor of same position, the design of broach end has crashproof slope, root is provided with the deslagging slope, the comb shape steel plate is stainless steel slide plate (3) down, slide plate adopts mechanical flanging, and flanging partly is close between anchor plate (5) and the concrete side during installation, and the bottom is two layers of neoprene waterproofing course (4).Anchor plate (5) electricity consumption weldering is welded on the comb shape steel plate (1,2) securely, directly is anchored on the bridge deck structure steel fiber concrete (7) by anchor bolt (6), waters polyurethane mixture (8) above.Install the back at broach gap pouring waterproofing unction (10).This apparatus structure compactness, firm, reliable, smooth, durable in use.
Characteristics of the present utility model are:
A) structure width is little, and materials are economized, and cost is low.
" a kind of highway bridge is durable, waterproof and dustproof, shockproof than prior art for this device integral width Retractor device " little 300-600mm, not only overall materials reduce, and its material of main part (comb shape steel Plate) thickness reduction (being 28-36mm originally) to the 22-28mm just can reach desirable rigidity. Just Step is adjusted overall material and can save about 1/3rd.
B) surfacing, attractive in appearance, shockproof properties good, vehicle ' is steady.
The Telescopic of this device is to rely on the slippage of comb shape steel plate to finish, and it does not have the flexible ditch of general stretching device, forms an integral body completely with bridge floor.
The anchor system of this device adopts anchor plate (5) to be welded on securely respectively on the comb shape steel plate (1,2), utilize high-strength bolt (6) directly to be anchored on the bridge deck structure, can reach effective anchoring strength fully, water polyurethane mixture (8) above, not only the surface is more smooth, attractive in appearance, and since polyurethane mixture can with concrete or good through specially treated hardware adhesion strength, hardening time, weak point had certain micro-elasticity energy, improved shockproof properties greatly, vehicle ' is comfortable steadily.
C) have excellent waterproof, anti-dust performance
The first, this device is provided with two layers of neoprene skin (4) and forms waterproofing course below comb shape steel plate (1,2) and stainless steel slide plate (3).
Second, this device is designed to become with bridge floor the side stretching device (being commonly called as nose) (9) of (〉=90 °) angle at comb shape steel plate two ends, every shrinkage joint, and fuse with bridge floor two ends stretching device with welding, neoprene skin (4) then utilizes its flexibility to form along curved company of stretching device length overall (comprising nose), thereby has effectively solved the waterproof and dustproof problem of stretching device termination.
The 3rd, this device with telescopic location be designed to beam body preset clearance not on same position, and in the flexible gap of comb shape steel plate, water waterproofing unction (10).
D) stroke is big, and structure height is low, and is applied widely.
The design of comb shape steel plate " three is anti-" bridge extension joint allows that stroke is 40-400mm, and it is applicable to various different girder constructions, the highway bridge of different spans and urban interchange, elevated road.
This apparatus structure height is 120-150mm, and when stroke during greater than 80mm, its structure height only is about 1/2nd of a shaped steel type stretching device.Do not need to change former girder construction during installation, shallow embedding is just established can reach effective anchoring strength, and especially the reconstruction to old bridge more can fully show its distinctive technical advantage.
E) the flexible gap of comb shape automatic slag removal guarantees that the beam body is normally flexible.
Have lime-ash, hard thing to stop up in the flexible exactly ditch of the ubiquitous problem of various dissimilar stretching devices, it is normally flexible to influence the beam body.This device is designed to be provided with the stainless steel slide plate below the comb shape steel plate, it both can reduce the frictional resistance of beam body when flexible, can make bed course again uses, make lime-ash, foreign material can only stay the surface, can automatically lime-ash and foreign material be discharged flexible gap by the telescopic process of comb shape steel plate and the effect of vehicle ', can not result in blockage, also can guarantee the normal flexible of beam body without the labor cleaning.
F) maintaining is convenient, and maintenance cost is low, and is durable in use.
This device all adopts weatherable materials, and integral rigidity is good, and anchorage part is protected by polyurethane mixture, and is not fragile.Generally do not need repairing, only need every waterproofing unction of 4-5 transposing, can reach more than 20 years application life.
Claims (5)
1. a bridge comb shape steel plate " three is anti-" stretching device, it comprises comb shape steel plate (1), (2), comb shape steel plate broach telescopic section is located at joint of bridge one side not to be had on the bridge floor at shrinkage joint, the slot root is provided with the deslagging skewed slot, the broach front end of comb shape steel plate is provided with downward-sloping crashproof slope, bridge expanssion joint one side serves as a contrast one deck stainless steel slide plate (3) under the flexible comb shape steel plate of broach is arranged, lay two layers of water proof rubber layer (4) under the stainless steel slide plate (3), being " U " shape during water proof rubber layer process bridge expanssion joint covers the shrinkage joint, it is characterized in that comb shape steel plate (1), (2) adopt anchor plate (5) with the bridge floor anchorage part, anchor plate is connected on the comb shape steel plate length direction bottom surface, stretch out in the flexible steel plate of comb shape and be spaced, the head of anchor bolt (6) buries in the anchor plate surface, anchor plate (5) surface and interval section are laid polyurethane mixture (8), the two ends of every shrinkage joint comb shape steel plate are designed to become with bridge floor 〉=90 ° of angle noses (9), become stretching device side stretching device, coordinate with nose, the water proof rubber layer is in also flexible whole long curved the company upwards of side stretching device part.
2. bridge comb shape steel plate according to claim 1 " three is anti-" stretching device is characterized in that the anchor plate (5) of described comb shape steel plate anchorage part is embedded in below the polyurethane mixture (8).
3. bridge comb shape steel plate according to claim 1 " three is anti-" stretching device, it is characterized in that because behind the anchorage part employing anchor plate (5), described comb shape steel plate overall structure width is than conventional little 300mm-600mm, and comb shape steel plate thickness reduces 6mm-8mm.
4. bridge comb shape steel plate according to claim 1 " three is anti-" stretching device is characterized in that pouring waterproofing unction (10) in the flexible gap of comb shape steel plate broach.
5. bridge comb shape steel plate according to claim 1 " three is anti-" stretching device is characterized in that the comb shape steel plate of every bridge expanssion joint can be divided into plurality of sections in the longitudinal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00259252 CN2457192Y (en) | 2000-11-21 | 2000-11-21 | Comb type steel plate three proof telescopic device for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00259252 CN2457192Y (en) | 2000-11-21 | 2000-11-21 | Comb type steel plate three proof telescopic device for bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2457192Y true CN2457192Y (en) | 2001-10-31 |
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ID=33615303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00259252 Expired - Fee Related CN2457192Y (en) | 2000-11-21 | 2000-11-21 | Comb type steel plate three proof telescopic device for bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2457192Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929127A (en) * | 2010-08-25 | 2010-12-29 | 广州新粤交通技术有限公司 | Method for preparing overlay of bridge expansion joint |
| CN102086628A (en) * | 2010-01-27 | 2011-06-08 | 刘祖江 | Comb plate bridge expansion device |
| CN101638884B (en) * | 2009-08-18 | 2012-07-25 | 上海市城市建设设计研究院 | Flexible and denoising comb teeth retractor device |
| CN103711075A (en) * | 2014-01-24 | 2014-04-09 | 宁波路宝科技实业集团有限公司 | Water stop and guide structure of bridge expansion joint |
| CN105088938A (en) * | 2015-07-10 | 2015-11-25 | 江山市飞龙进出口有限公司 | Bridge of automatic cleaning type telescopic joint device with dustproof belt ring |
-
2000
- 2000-11-21 CN CN 00259252 patent/CN2457192Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638884B (en) * | 2009-08-18 | 2012-07-25 | 上海市城市建设设计研究院 | Flexible and denoising comb teeth retractor device |
| CN102086628A (en) * | 2010-01-27 | 2011-06-08 | 刘祖江 | Comb plate bridge expansion device |
| CN101929127A (en) * | 2010-08-25 | 2010-12-29 | 广州新粤交通技术有限公司 | Method for preparing overlay of bridge expansion joint |
| CN103711075A (en) * | 2014-01-24 | 2014-04-09 | 宁波路宝科技实业集团有限公司 | Water stop and guide structure of bridge expansion joint |
| CN105088938A (en) * | 2015-07-10 | 2015-11-25 | 江山市飞龙进出口有限公司 | Bridge of automatic cleaning type telescopic joint device with dustproof belt ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |