CN204385613U - A kind of broken line type stretching device - Google Patents
A kind of broken line type stretching device Download PDFInfo
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- CN204385613U CN204385613U CN201420815377.8U CN201420815377U CN204385613U CN 204385613 U CN204385613 U CN 204385613U CN 201420815377 U CN201420815377 U CN 201420815377U CN 204385613 U CN204385613 U CN 204385613U
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- stretching device
- broken line
- line type
- type stretching
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Abstract
The utility model discloses a kind of broken line type stretching device, comprise abreast discrete be arranged on the left and right sides anchor slab, the Z-shape steel being located at described anchor slab top, carry out the sealing rubber strip of setting-in, the dowel for fixing described anchor slab and Z-shape steel, described broken line type stretching device undulate along its length by relatively a pair die cavity be arranged on inside described Z-shape steel.Broken line type stretching device of the present utility model is by changing stretching device pattern, make wheel and stretching device travel angle and be greater than or less than 90 degree, thus avoid vehicle bound, and left and right two wheel is no longer synchronous for time of contact with shaped steel, significantly decreases driving noise.
Description
Technical field
The utility model belongs to bridge engineering component technology field, relates to a kind of shrinkage joint, is specifically related to a kind of broken line type modular expansion device.
Background technology
Bridge extension joint is for making vehicle smoothly pass bridge floor and meeting the needs of bridge superstructure distortion, to stretch the general name of the various devices be made up of the component such as rubber and steel that place arranges at bridge.It is primarily of power transmission supporting system and Bit andits control system composition, and major function one is that vehicle is vertical and horizontal loading is delivered to beam body by supporting construction, and two is adapt to the bridge change of displacement and the corner change of beam-ends warpage generation in length and breadth.
Car noise has in four " sources ": the noise that the noise in engine noise, tire noise, air and body structure cause.
1, engine noise.Except the mechanic sound that engine block sends, also comprise gas handling system noise, namely high-speed gas enters cylinder through air filter, air inlet pipe, valve, in flow process, can produce a kind of very strong aerodynamic noise.Engine noise imports driving cabin into primarily of the noseplate position of firebreak and driver's cabin.
2, tire noise.General tire is made an uproar primarily of three part compositions: one is the air flowing in tyre tread gap and the noise of air of tire ambient air disturbance formation; Two is that carcass and knurling section shake the tyre vibration noise caused; Three is pavement noises that Uneven road causes.
3, noise of air.One is that wind is made an uproar, and is separated exactly causes pressure to change and the noise of generation by vehicle body surrounding flow; Two is that wind leaks, or is sucking-off sound, is the noise being interacted with vehicle body surrounding flow by driver's cabin and bodywork gap air-breathing and produced; Three is other noises, comprises cavity resonance etc.
4, body structure noise.Mainly affect by two aspect factors, one is the vibrations transfer mode of body structure, and two is hardwares on vehicle body produces noise owing to producing vibrations under inside and outside effect.
For governing noise pollution; ensure the sound environment quality of living standard of urban and rural population working and learning, national environmental protection portion has issued ambient noise national standard: GB3096-2008 " standard for acoustic environmental quality ", GB12348-2008 " Industrial Enterprise Factory Boundary ambient noise discharge standard ", GB22337-2008 " social living environment's noise emission standard " coming into effect on October 1st, 2008.
Wherein, in the process of moving, owing to there is gap between stretching device shaped steel, wheel and side bar (central sill) rub, jump, collide vehicle, and to the air extrusion in gap, thus produce noise, be produce one of car noise to originate greatly.Under the pressure of the needs of governing noise pollution, be necessary to be improved existing stretching device, to reduce the noise in driving.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of broken line type stretching device, by changing the pattern of stretching device, thus changes the traveling angle between wheel and stretching device, to reduce driving noise.
In order to realize above-mentioned object, the utility model provides following technical scheme:
Broken line type stretching device of the present utility model, comprise abreast discrete be arranged on the left and right sides anchor slab, the Z-shape steel being located at described anchor slab top, carry out the sealing rubber strip of setting-in, the dowel for fixing described anchor slab and Z-shape steel, described broken line type stretching device undulate along its length by relatively a pair die cavity be arranged on inside described Z-shape steel.
In technique scheme, described Z-shape steel surface is provided with one deck zinc topping.
In technique scheme, described sealing rubber strip is box structure or band shape structure.
In technique scheme, described sealing rubber strip is ethylene-propylene-diene monomer adhesive tape.
In technique scheme, be embedded into the embedded ribs in concrete when described broken line type stretching device also comprises installation, after installation, described embedded ribs welded with dowel.
In technique scheme, run through the spatial placement that described embedded ribs and dowel formed and cross muscle.
Because stretching device is direction across bridge under normal circumstances, 90 degree are become with direction of traffic, broken line type stretching device of the present utility model is by changing stretching device pattern, make wheel and stretching device travel angle and be greater than or less than 90 degree, thus avoid vehicle bound, and left and right two wheel is no longer synchronous for time of contact with shaped steel, significantly decreases driving noise.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical solution of the utility model, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing relevant of the present utility model in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the section structure schematic diagram of the utility model broken line type stretching device;
Fig. 2 is the utility model broken line type stretching device schematic shapes along its length.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be described in detail the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.
As shown in Figure 1 and 2, broken line type stretching device of the present utility model, comprise abreast discrete be arranged on the left and right sides anchor slab 1, the Z-shape steel 2 being located at anchor slab 1 top, carry out the sealing rubber strip 3 of setting-in, the dowel 4 for fixing anchor slab 1 and Z-shape steel 2 by relatively a pair die cavity be arranged on inside Z-shape steel 2, broken line type stretching device of the present utility model is (i.e. direction across bridge) undulate along its length.
The surface of Z-shape steel 2 can be provided with one deck zinc topping, extends the application life of Z-shape steel 2.
Sealing rubber strip 3 can be box structure or band shape structure, and its material can be ethylene propylene diene rubber bar, both can waterproof, can block again foreign matter and be convenient to clear up.
Broken line type stretching device of the present utility model is embedded into the embedded ribs 5 in concrete when also comprising installation, weld after installation to embedded ribs 5 with dowel 4.
Run through space (namely along direction across bridge) that embedded ribs 5 and dowel 4 formed to be provided with and to cross muscle 6.
First embedded ribs 5 is embedded in concrete during installation, dowel 4 is welded with embedded ribs 5, arrange and cross muscle 6, with concreting, notch is installed, setting-in sealing rubber strip 3.
Stretching device excellent equally, different construction and installation quality, result of use and durability have significant difference, but this can not as the reason affecting the utility model technique effect.
1, unit in charge of construction's size that must provide according to design drawing, reserves at beam-ends (or plate end) and beam-ends, beam-ends and Abutment the preformed groove installing stretching device, and pre-buried good anchor bar by drawing.Anchor rib should have reliable anchor to join with beam-ends or abutment, as main muscle need weld time, the pertinent regulations of bridge construction specification should be met.
2, the stretching device that factory-assembled is good generally transports building site to by factory's special train.Stretching device in transportation, because limiting by transportation lengths, or because of other reason need splice in building site time, should factory instruct under construct.
3, on stretching device before bridge, first must check that whether the girder after having constructed (or plate) two ends gap amount is consistent with design load, whether accurately pre-buried anchor bar or member position, if do not meet designing requirement, will consider whether the original stretching device model selected is suitable for.As do not met the demands, and when not ensureing reliable anchoring, then must consider revise the size of clearance of expansion rail or change the remedial measure of the necessity such as stretching device model.
4, stretching device is before upper bridge is installed, check whether " J " value or " a " value of stretching device meet installation temperature requirement, otherwise must under engineer instructs, adjust with level jack, fixture by the real air temperature (when there is any discrepancy with temperature when providing factory to install) when installing, until meet designing requirement, after adjusting, and check that signature rear available dedicated jig is fixed by construction and installation person in charge.
5, before stretching device hoisted in position, should by preformed groove inner concrete hacking, cleaning is clean.Cleaning formation level, makes preformed groove reach suitable width and the degree of depth, to place Large travel range modulus type stretching device, must remove all unnecessary reinforcing bars, and ensure that beam-ends gap meets designing requirement.
6, when stretching device dispatches from the factory, handling suspension centre is indicated by obvious color, must lift by crane, can remake suitable strengthening measure if desired, guarantee safe and reliable during the lifting of building site according to suspension centre.Boom hoisting is set at notch, stretching device is slowly placed in preformed groove.The center line of stretching device should coincide with bridge center line, and deviation is maximum can not more than 10mm; Stretching device along bridge to width a value, symmetrical should be placed on the gap at shrinkage joint, and with spirit level or board foot location, level up after making its end face absolute altitude and grade elevation (-1 ~ 1.5mm) identical.
7, after stretching device is correctly located, to stretching device anchor plate place, the reinforcing bar of vertical position welding φ more than 16 carries out altitude location.Horizontal position welding φ 16 reinforcing bar directly spends location.Then by the anchor bar of stretching device side and the welding of preformed groove embedded bar, to ensure that stretching device is fixed.As long as weld one every 2 ~ 3 anchor bars during welding, and then by above-mentioned steps at the anchor rib of opposite side, until both sides reach fixing after, the anchor rib just can not welded again row welds, and guarantees reliable anchoring.Not any welding on side bar and central sill to be noted, the distortion in case girder steel is distorted when welding anchor rib.Then wear and put horizontal connection horizontal reinforcement.As having any problem, first can be welded side, and loosening slide calliper rule, make its free-extension, now stretching device produces effectiveness.After stretching device anchoring is fixed, namely removes the fixing steel plate of stretching device end face, cut off positioning bolt, smooth with grinder buffing, coat zinc paint.
8, after completing above-mentioned operation, necessary template is installed, beam-ends template and stretching device template (available 2mm steel plate or the suitable Polystyrene plastic plate of thickness) are set, template makes by the breach of stretching device appearance and size and preformed groove, template should be done quite tight, in case mortar flows into displacement controlling box or flows to the gap of bridge end.
9, by the requirement of design drawing, in concrete preformed groove, cast is greater than epoxy resin concrete or the steel fibrous concrete of C40, also with C50 or can be greater than C50 high-strength concrete filling tamping.Necessary measure should be taked during fluid concrete; vibration compacting; can protect on stretching device surface layer overlay iron plate and other sheet material; prevent concrete from infiltrating in stretching device beam-ends gap; do not allow concrete to spatter and fill out in caulking gum is with seam and surface; if this phenomenon occurs should remove immediately, then protect very well.
10, after concreting, maintenance should be noted, and barring traffic, reach after intensity can be open to traffic until concrete.
11, bridge surface waterproof layer and deck paving bridge deck works that is general and bed rearrangement bridge once complete.Before mating formation, stretching device should add a cover temporary protection measure, avoids clashing into and directly bearing vehicular load.
In sum, because stretching device is direction across bridge under normal circumstances, 90 degree are become with direction of traffic, broken line type stretching device of the present utility model is by changing stretching device pattern, make wheel and stretching device travel angle and be greater than or less than 90 degree, thus avoid vehicle bound, and left and right two wheel is no longer synchronous for time of contact with shaped steel, significantly decreases driving noise.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this manual is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of manual is only for clarity sake, those skilled in the art should by manual integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (6)
1. a broken line type stretching device, it is characterized in that: comprise abreast discrete be arranged on the left and right sides anchor slab (1), the Z-shape steel (2) being located at described anchor slab (1) top, carry out the sealing rubber strip (3) of setting-in, the dowel (4) for fixing described anchor slab (1) and Z-shape steel (2) by a pair die cavity being relatively arranged on described Z-shape steel (2) inner side, described broken line type stretching device undulate along its length.
2. broken line type stretching device according to claim 1, is characterized in that: described Z-shape steel (2) surface is provided with one deck zinc topping.
3. broken line type stretching device according to claim 1, is characterized in that: described sealing rubber strip (3) is box structure or band shape structure.
4. broken line type stretching device according to claim 3, is characterized in that: described sealing rubber strip (3) is ethylene-propylene-diene monomer adhesive tape.
5. broken line type stretching device according to claim 1, is characterized in that: be embedded into the embedded ribs (5) in concrete when also comprising installation, welds after installation to described embedded ribs (5) with dowel (4).
6. broken line type stretching device according to claim 5, is characterized in that: run through the spatial placement that described embedded ribs (5) and dowel (4) formed and cross muscle (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815377.8U CN204385613U (en) | 2014-12-20 | 2014-12-20 | A kind of broken line type stretching device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815377.8U CN204385613U (en) | 2014-12-20 | 2014-12-20 | A kind of broken line type stretching device |
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| CN204385613U true CN204385613U (en) | 2015-06-10 |
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| CN201420815377.8U Active CN204385613U (en) | 2014-12-20 | 2014-12-20 | A kind of broken line type stretching device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284063A (en) * | 2016-10-18 | 2017-01-04 | 单国珠 | Curvilinear mold numerical expression damping vibration attenuation multi-directional deflection retractor device and method |
| CN107354866A (en) * | 2017-07-21 | 2017-11-17 | 刘强 | A kind of Reconstruction in field method of bridge extension joint |
-
2014
- 2014-12-20 CN CN201420815377.8U patent/CN204385613U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284063A (en) * | 2016-10-18 | 2017-01-04 | 单国珠 | Curvilinear mold numerical expression damping vibration attenuation multi-directional deflection retractor device and method |
| CN107354866A (en) * | 2017-07-21 | 2017-11-17 | 刘强 | A kind of Reconstruction in field method of bridge extension joint |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215500, 5, Golden Gate Road, Southeast Development Zone, Suzhou, Jiangsu, Changshou City Patentee after: SUZHOU HAIDER ENGINEERING MATERIALS CO., LTD. Address before: 215500, 5, Golden Gate Road, Southeast Development Zone, Suzhou, Jiangsu, Changshou City Patentee before: SUZHOU HAIDER ENGINEERING MATERIAL CO., LTD. |