CN205352681U - Variable width bridge expansion joint test platform - Google Patents
Variable width bridge expansion joint test platform Download PDFInfo
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- CN205352681U CN205352681U CN201620051791.5U CN201620051791U CN205352681U CN 205352681 U CN205352681 U CN 205352681U CN 201620051791 U CN201620051791 U CN 201620051791U CN 205352681 U CN205352681 U CN 205352681U
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Abstract
The utility model discloses a variable width bridge expansion joint test platform, characteristics are: including lieing in the bottom and being used for load test platform upper portion load and the base part branch of experimental vehicle load, the fixed bottom steel sheet that divides the top in base part of laying, the upper portion steel sheet of setting on the bottom steel sheet, the setting makes the force applying device of upper portion steel sheet for the removal of bottom steel sheet between bottom steel sheet and upper portion steel sheet, the expansion joint component, the pavement concrete platform with be used for installing the first of expansion joint component, second concrete platform, through force applying device to the upper portion steel sheet application of force, make the upper portion steel sheet remove for the bottom steel sheet, thereby the width at expansion joint is reduced or increased, the advantage is: the utility model provides a convertible expansion joint type, can change the full -scale bridge expansion joint test platform of expansion joint width, can truly reflect the actual performance of the flexible component of bridge, the test result accuracy is high.
Description
Technical field
This utility model relates to bridge expanssion joint test platform field, particularly relates to a kind of variable-width bridge expanssion joint test platform.
Background technology
Bridge expanssion joint as the important component part on highway bridge road surface, is mainly used in adapting to the contraction of bridge produced flexible and bridge concrete when gradient of temperature and creeps, thus ensureing safety and the comfortableness of vehicle pass-through on bridge.
Since the eighties in 20th century, flourish along with highway in China bridge construction, various types of retractor devices use in a large number on bridge.Expansion joint is the local " discontinuous segment " of bridge pavement, in actual use, can produce to jump car phenomenon when vehicle crosses, and this percussion makes expansion joint be very easy in actual use damage.Owing to China starts late, up to now, the domestic research to problems such as the construction features of all kinds of retractor devices, performance requirement and detection points is not yet ripe.In research process, for the correctness of proof theory, generally requiring the test carrying out being correlated with, and be limited by the deficiency such as fund and technology, the existing test about retractor device often uses the method building scaled model.Scale (model) test can reflect the very many-sided performance of retractor device, but, there is many differences in itself and bridge practical situation, such as: reduced scale expansion joint component and lorry have compared a lot of simplification with actual expansion joint component and lorry, the structure of they complexity cannot be reflected, so that result of the test cannot reflect the actual performance of retractor device completely, result of the test also tends to inaccurate.And, in actual bridge, the type at expansion joint has a lot, but existing scientific experimentation is often confined to a certain expansion joint type so that obtained result of the test does not have universality.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, a kind of variable-width bridge expanssion joint test platform of the present utility model, a kind of convertible expansion joint type can be provided, the full-scale bridge expanssion joint test platform of expansion joint width can be changed, can truly reflecting the actual performance of bridge telescoping member, result of the test accuracy is high.
The technical scheme that the above-mentioned technical problem of this utility model solution adopts is: a kind of variable-width bridge expanssion joint test platform, it is characterized in that, including in bottom for carry the base component of described test platform upper load and test vehicle load, fixing be layed in above described base component bottom steel plate, the top steel plate being arranged in described bottom steel plate, be arranged between described bottom steel plate and described top steel plate and for the force application apparatus making described top steel plate move relative to described bottom steel plate, expansion joint component
Described expansion joint component is made up of the Part I component matched and Part II component, the top of described top steel plate is cast with the pavement concrete platform being close together and for installing the first coagulation earthen platform of described Part I component, the top of described base component is cast with the second coagulation earthen platform for installing described Part II component against described bottom steel plate, the width that distance is expansion joint between described Part I component and described Part II component, teeming has and first supplements pavement concrete platform in order to what make test vehicle normally cross above described base component and between road surface and described pavement concrete platform, described first supplement be provided with preset slot between pavement concrete platform and described pavement concrete platform, the top of described preset slot is coated with the road surface overlap joint steel plate for making test vehicle normally cross, above described base component and between road surface and described second coagulation earthen platform, closely teeming has the second supplementary pavement concrete platform in order to make test vehicle normally cross
By described force application apparatus, described top steel plate being exerted a force, make described top steel plate move towards the direction near described second coagulation earthen platform, the width at described expansion joint reduces, and the width of described preset slot increases；By described force application apparatus, described top steel plate being exerted a force, make described top steel plate move away from the direction of described second coagulation earthen platform, the width at described expansion joint increases, and the width of described preset slot reduces.Thus, test platform truly reflects the actual performance of bridge extension joint, and can change expansion joint width, simulates multiple test cases, make result of the test more accurately, more universality.
In some embodiments, described base component includes cushion cap and is arranged on many prefabricated piles bottom described cushion cap, described bottom steel plate is laid on described cushion cap, and described second coagulation earthen platform, the described first supplementary pavement concrete platform and described second supplement pavement concrete platform and be cast on described cushion cap.Thus, constitute stable entirety, be more beneficial for bearing test platform upper load and test vehicle load.
In some embodiments, described force application apparatus includes being arranged on two the first jack of two edges of side in described bottom steel plate, being arranged on two the second jack of two edges of opposite side in described bottom steel plate, the top cap of described first jack abuts with the side of steel plate side, described top, exerted a force by top steel plate described in described first jack pair, make the width at described expansion joint reduce；The top cap of described second jack abuts with the side of described top steel plate opposite side, is exerted a force by top steel plate described in described second jack pair, makes the width at described expansion joint increase.Thus, realized the change of expansion joint width, simple in construction by jack, construct and easy to operate.
In some embodiments, connecting by the first fastening assembly and the second fastening assembly are fixing between described top steel plate and described bottom steel plate, described first fastening assembly includes: the first fluting being arranged on steel plate both sides, described top, the multiple first reserved screw being arranged in the described bottom steel plate corresponding with described first slotting position and the described first reserved screw with the use of the first bolt and with described first bolt with the use of the first nut；Described second fastening assembly includes: the multiple second reserved screw be arranged on the fluting of three arranged in parallel second in the steel plate of described top, being arranged in the described bottom steel plate corresponding with described second slotting position and the described second reserved screw with the use of the second bolt and with described second bolt with the use of the second nut；Described pavement concrete platform is additionally provided with the through slot corresponding with described second slotting position.Thus, no matter making top steel plate and bottom steel plate at both sides or middle part, transverse direction or longitudinal all compact siro spinning technology, will not separate, reducing the vibration of platform self when test vehicle crosses, it is ensured that the accuracy of result of the test.
In some embodiments, the distance between the described through slot in two, outside is less than the wheel clear distance of test vehicle.Thus, through slot can be avoided when vehicle crosses, it is ensured that the accuracy of test result.
In some embodiments, between described cushion cap with described bottom steel plate, it is connected by shearing connecting piece between described top steel plate and described pavement concrete platform.Thereby, it is possible to make they compact siro spinning technology, form an entirety.
In some embodiments, the change width at described expansion joint ranges for 0～16cm, and the width at described expansion joint is become from 0 in the process of 16cm, and the width of described preset slot is become 0 from 16cm accordingly.Thus, it is consistent with the expansion joint width change of actual bridge, it is possible to simulate the expansion joint width change of actual bridge exactly.
In some embodiments, described Part I component is the first expansion joint module of 1m and constitutes along width of roadway direction close-packed arrays by three length, and the second expansion joint module close-packed arrays being 1m by three length that described Part II component is corresponding is constituted.Thus, identical with the structure of the expansion joint component of actual bridge, its structure and performance can be accurately reflected.
In some embodiments, waterproof awning it is covered with above described test platform, described waterproof awning is fixed by the road surface that awning base station and described cushion cap are peripheral and is connected, it is 2～5 ° of inclined planes that the end face of described waterproof awning is arranged to angle of inclination, and the minimum altitude of described waterproof awning is more than the height of test vehicle.Thus, the water bodys such as rainwater can be made to slide along the end face of waterproof awning and to be discharged to outside test platform, reduce the water body adverse effect to test platform to a certain extent, and the height of waterproof awning is more than the height of test vehicle, without influence on the normal pass of test vehicle.
Compared with prior art, the utility model has the advantage of:
(1) force application apparatus is passed through, top steel plate and bottom steel plate can realize relative movement, thus realizing the change of expansion joint width, simulate the expansion joint width change that actual bridge causes because of expanded by heating or contract on cooling, in this utility model, the excursion of expansion joint width is 0 ~ 16mm, this is consistent with the expansion joint width change of actual bridge, and therefore, test platform of the present utility model can simulate the expansion joint width change of actual bridge exactly.
(2) by the concrete of expansion joint component surrounding is chiseled out, take out whole expansion joint component and reinstall the mode of new expansion joint component, can reach to change the purpose of expansion joint type, it is achieved polytype expansion joint is tested, makes result of the test have universality.
(3) by friction type high strength bolt, top steel plate and bottom steel plate are fixedly secured, by shearing connecting piece, top steel plate is linked together with pavement concrete platform, bottom steel plate and cushion cap, so that whole test platform forms the entirety combined closely, when vehicle crosses, platform will not produce too big vibration thus affecting the accuracy of the test results such as dynamic response.
(4) base component adopts pile foundation, and bearing capacity is high, and non-deformability is strong, it is possible to meet the installation accuracy requirement that expansion joint is harsher.
(5) construction of whole test platform is simple, quick, cost is low, without the admission fee that professional construction machinery is expensive except excavator, practical.
(6) can polytype sensor such as layout sound, electricity, light conveniently and efficiently on test platform of the present utility model, for testing the expansion joint dynamic responses such as displacement, strain, acceleration, acoustic pressure, research for expanded joint structure intensity, fatigue, damage, structure optimization provides basic test data, contributes to the accuracy of the relevant theoretical analysis method of checking.
Accompanying drawing explanation
Fig. 1 is the structural representation of the main part of this utility model one embodiment；
Fig. 2 is the structural representation of this utility model one embodiment；
Fig. 3 is the structural representation of the bottom steel plate of this utility model one embodiment, top steel plate and pavement concrete platform part；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is the structural representation that this utility model one embodiment increases waterproof awning.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model one variable-width bridge expanssion joint test platform is described in further detail, but not as to restriction of the present utility model.
As Figure 1-Figure 4, a kind of variable-width bridge expanssion joint test platform includes: bottom and for bearing test platform upper load and test vehicle load base component, fix be layed in base component bottom steel plate 3, the top steel plate 4 being arranged in bottom steel plate 3, be arranged between bottom steel plate 3 and top steel plate 4 and for the force application apparatus making top steel plate 4 move relative to bottom steel plate 3, expansion joint component.
Base component is that in the present embodiment, base component includes cushion cap 2 and is arranged on the many prefabricated piles 1 bottom cushion cap 2, and bottom steel plate 3 is laid on cushion cap 2 for bearing the upper load of test platform and reducing the differential settlement of test platform.Prefabricated pile 1 be provided with 4, diameter be 400mm, length be 3m, the height of cushion cap 2 is 300mm, is furnished with vertically and horizontally steel bar stress bottom cushion cap 2, gos deep into making cushion cap 2 and prefabricated pile 1 form entirety in cushion cap 2 by anchor bar reserved for prefabricated pile 1.Thus, prefabricated pile 1 and cushion cap 2 have good bearing capacity and non-deformability, are particularly suitable for the Jiangnan regions construction that Soft Soil Layer is thicker.
Expansion joint component is made up of the Part I component 61 matched and Part II component 71, the top of top steel plate 4 is cast with the pavement concrete platform 5 being close together and for installing the first coagulation earthen platform 6 of Part I component 61, the top of cushion cap 2 is cast with the second coagulation earthen platform 7 for installing Part II component 71 against bottom steel plate 3, being expansion joint 72 between Part I component 61 and Part II component 71, the distance between Part I component 61 and Part II component 71 is the width at expansion joint 72.
Teeming has and first supplements pavement concrete platform 8 in order to what make test vehicle normally cross on cushion cap 2 and between road surface and pavement concrete platform 5, first supplement be provided with preset slot 53 between pavement concrete platform 8 and pavement concrete platform 5, the top of preset slot 53 is coated with the road surface overlap joint steel plate 52 for making test vehicle normally cross, and close teeming has the second supplementary pavement concrete platform 9 in order to make test vehicle normally cross on cushion cap 2 and between road surface and the second coagulation earthen platform 7.The first of teeming is supplemented pavement concrete platform 8, second and supplements one entirety of close formation between pavement concrete platform 9, cushion cap 2.
In the present embodiment, force application apparatus includes being arranged on two the first jack 31 of two edges of side in bottom steel plate 3, being arranged on two the second jack 32 of two edges of opposite side in bottom steel plate 3.The top cap of the first jack 31 abuts with the side of top steel plate 4 side, by the first jack 31, top steel plate 4 is exerted a force, and makes top steel plate 4 move towards the direction near the second coagulation earthen platform 7, makes the width at expansion joint 72 reduce, and the width of preset slot 53 increases.The top cap of the second jack 32 abuts with the side of top steel plate opposite side, by the second jack 32, top steel plate 4 is exerted a force, and makes top steel plate 4 move away from the direction of the second coagulation earthen platform 7, makes the width at expansion joint 72 increase, and the width of preset slot 53 reduces.In the present embodiment, the change width at expansion joint 72 ranges for 0～16cm, and the width at expansion joint 72 is become from 0 in the process of 16cm, and the width of preset slot 53 is become 0 from 16cm accordingly.Accordingly, overlap joint steel plate 52 in road surface has different width dimensions, in order to after expansion joint 72 width changes, and the road surface overlap joint steel plate 52 changing suitable width size is laid on above preset slot 53 and connects road surface, both sides.
As shown in Figure 4, in the present embodiment, test platform also includes: for fixing the first fastening assembly and second fastening assembly of top steel plate 4 and bottom steel plate 3.First fastening assembly includes: through first fluting 41 being arranged on top steel plate 4 both sides, the multiple first reserved screw being arranged in the bottom steel plate 3 that 41 positions of slotting with first are corresponding and the first reserved screw with the use of the first bolt and with the first bolt with the use of the first nut 42, in the present embodiment, the first bolt is frictional high-strength bolts.Second fastening assembly includes: the multiple second reserved screw be arranged in top steel plate 4 three arranged in parallel second fluting, being arranged in the bottom steel plate 3 corresponding with the second slotting position and the second reserved screw with the use of the second bolt 54 and with the second bolt with the use of the second nut, in the present embodiment, the second bolt 54 is frictional high-strength bolts.Pavement concrete platform 5 is additionally provided with the through slot 51 corresponding with the second slotting position.The effect arranging the first fastening assembly and the second fastening assembly is: makes top steel plate 4 and bottom steel plate 3 at both sides and middle part, horizontal and vertical equal compact siro spinning technology, will not separate, and reduces the vibration of platform self when test vehicle crosses, it is ensured that the accuracy of result of the test.The effect arranging through slot 51 is: after mobile top steel plate 4, for box spanner, the second nut and the second bolt 54 are tightened reserved working place.Wherein, the distance between two through slots 51 in outside is less than the wheel clear distance of test vehicle, thus, can avoid through slot 51, it is ensured that the accuracy of test result when vehicle crosses.
In the present embodiment, between cushion cap 2 with bottom steel plate 3, it is connected by enough shearing connecting pieces between top steel plate 4 and pavement concrete platform 5, to become an entirety.
Expansion joint component is made up of the Part I component 61 matched and Part II component 71, Part I component 61 is the first expansion joint module of 1m and constitutes along the width close-packed arrays on road surface by three length, three length the second expansion joint module close-packed arrays being 1m of Part II component 71 correspondence is constituted.The structure of expansion joint component is identical with the expansion joint structure used on actual bridge, and therefore, the result of the test that this utility model obtains can truly reflect the actual performance of bridge extension joint, and result of the test is comparatively accurate.If the length of test platform is identical with realistic bridges beam length, the cost that whole test platform manufactures on the one hand is higher, and difficulty of construction is bigger；The function converting expansion joint width on the other hand is not easily accomplished.Therefore, in the present embodiment, considering for economic and practical angle, testing land lengths along width of roadway direction treating excess syndrome is 3.4m, is respectively mounted 3 the first expansion joint modules and the second expansion joint module, and respectively stays the working place of 0.2m in component both sides, expansion joint.
This utility model can convert expansion joint type, for instance conventional modulus type expansion joint, the board-like expansion joint of comb etc. are all applied to this test platform.
As shown in Figure 5, in the present embodiment, waterproof awning 10 also it is covered with above test platform, waterproof awning 10 is connected by awning base station 101 is fixing with the road surface of cushion cap 2 periphery, the end face 102 of waterproof awning 10 is arranged to the inclined plane that angle of inclination is 5 degree, the minimum altitude of waterproof awning 10 is more than the height of test vehicle, and in the present embodiment, the minimum altitude of waterproof awning 10 is 5m.Thus, waterproof awning 10 can make the water bodys such as rainwater slide along end face 102 to be discharged to outside test platform, reduce the water body adverse effect to test platform to a certain extent, and the height of waterproof awning 10 arranges the height more than test vehicle, without influence on the normal pass of test vehicle.
A kind of variable-width bridge expanssion joint test platform of the present utility model is constructed according to following steps:
1. piling: dig out on road surface installation test platform the foundation ditch of applicable size, with excavator, the prefabricated pile 1 of four root length 3m is vertically pressed in the foundation ditch dug.Piling machine need not be used to construct, just can prefabricated pile 1 is pressed in foundation ditch with excavator, save construction cost.
2. cast cushion cap 2: be reserved with anchor bar in prefabricated pile 1, be furnished with vertically and horizontally steel bar stress bottom cushion cap 2, anchor bar is goed deep in the vertically and horizontally steel bar stress of cushion cap 2, make cushion cap 2 and prefabricated pile 1 form entirety.
3. steel plate is installed: above cushion cap 2, lay bottom steel plate 3, connect bottom steel plate 3 and cushion cap 2 with enough shearing connecting pieces, makes them form an entirety；Top steel plate 4 is placed above bottom steel plate 3, and the first bolt is screwed in the first reserved screw of bottom steel plate 3 both sides, second bolt is screwed in the second reserved screw of bottom steel plate 3, with box spanner, the first nut 42 and the first bolt are tightened again, second nut and the second bolt 54 are tightened, makes top steel plate 4 and bottom steel plate 3 compact siro spinning technology；Four edges in bottom steel plate 3 install the first jack 31 and the second jack 32 for making top steel plate 4 move relative to bottom steel plate 3, and its top cap abuts with top steel plate 4 side.
4. cast coagulation earthen platform: weld sufficient amount of shearing connecting piece above top steel plate 4, and pour into a mould pavement concrete platform 5, be close to pavement concrete platform 5 and pour into a mould the first coagulation earthen platform 6, pour into a mould the second coagulation earthen platform 7 against bottom steel plate 3 above cushion cap 2.
5. expansion joint component is installed: being respectively mounted Part I component 61 and Part II component 71 above the first coagulation earthen platform 6 and the second coagulation earthen platform 7, the distance between Part I component 61 and Part II component 71 is the width at expansion joint 72.
6. teeming pavement concrete: in order to make the smooth drive-by test platform of test vehicle, teeming pavement concrete in the foundation ditch dug, on cushion cap 2 and between road surface and pavement concrete platform 5, teeming first supplements pavement concrete platform 8, the width sum leaving preset slot 53, the width of preset slot 53 and expansion joint 72 during teeming and between pavement concrete platform 5 is 16cm；On cushion cap 2 and between road surface and the second coagulation earthen platform 7, teeming second supplements pavement concrete platform 9, makes second to supplement pavement concrete platform 9 and the second coagulation earthen platform 7 fits tightly.
7. road surface overlap joint steel plate 52 is installed: lay above preset slot 53 and road surface overlap joint steel plate 52 is installed, be used for making test vehicle cross smoothly.
8. repair road surface, complete construction.
When needing the width at conversion expansion joint 72, road surface is overlapped steel plate 52 take out, box spanner is used the first nut 42 and the second nut to be unscrewed, exert a force by the first jack 31 or the second jack 32 top steel plate 4 is moved relative to bottom steel plate 3, thus with the Part I component 61 of fixing pavement concrete platform, the first coagulation earthen platform and the top thereof being connected of top steel plate 4 all along with top steel plate 4 moves, thus reaching the purpose of the width at conversion expansion joint 72.After the width at conversion expansion joint 72, use box spanner the first nut 42 and the first bolt to be tightened, the second nut and the second bolt 54 are tightened, make top steel plate 4 and bottom steel plate 3 fix.Finally reinstall the road surface overlap joint steel plate 52 of suitable width size.
When expansion joint component replaced by needs, by chiseling out the concrete of expansion joint component surrounding, namely the 6, second coagulation earthen platform 7, the first coagulation earthen platform, part pavement concrete platform 5 and part second supplement pavement concrete platform 9, are taken out by whole expansion joint component, and reinstall new expansion joint component.Thus can realize changing the function of expansion joint type more economically.
In some embodiments, it is possible to waterproof awning 10 is installed after test platform installation.First, installing four awning base stations 101 around four turnings of cushion cap 2, be then arranged on awning base station 101 by waterproof awning 10, waterproof awning 10 is located at above test platform.Repair road surface after waterproof awning 10 installation, make road surface keep smooth, thus test vehicle can pass through.
It should be noted that; the foregoing is only preferred embodiment of the present utility model; not thereby limiting scope of patent protection of the present utility model, the structure of above-mentioned various parts can also be carried out the improvement of material and structure by this utility model, or adopts technically equivalent ones to be replaced.Therefore the equivalent structure change that all utilization description of the present utility model and diagramatic content are made, or directly or indirectly apply to other correlative technology fields and be all in like manner all contained in the scope that this utility model is contained.
Claims (9)
1. a variable-width bridge expanssion joint test platform, it is characterized in that, including in bottom for carry the base component of described test platform upper load and test vehicle load, fixing be layed in above described base component bottom steel plate, the top steel plate being arranged in described bottom steel plate, be arranged between described bottom steel plate and described top steel plate and for the force application apparatus making described top steel plate move relative to described bottom steel plate, expansion joint component
Described expansion joint component is made up of the Part I component matched and Part II component, the top of described top steel plate is cast with the pavement concrete platform being close together and for installing the first coagulation earthen platform of described Part I component, the top of described base component is cast with the second coagulation earthen platform for installing described Part II component against described bottom steel plate, the width that distance is expansion joint between described Part I component and described Part II component, teeming has and first supplements pavement concrete platform in order to what make test vehicle normally cross above described base component and between road surface and described pavement concrete platform, described first supplement be provided with preset slot between pavement concrete platform and described pavement concrete platform, the top of described preset slot is coated with the road surface overlap joint steel plate for making test vehicle normally cross, above described base component and between road surface and described second coagulation earthen platform, closely teeming has the second supplementary pavement concrete platform in order to make test vehicle normally cross
By described force application apparatus, described top steel plate being exerted a force, make described top steel plate move towards the direction near described second coagulation earthen platform, the width at described expansion joint reduces, and the width of described preset slot increases；By described force application apparatus, described top steel plate being exerted a force, make described top steel plate move away from the direction of described second coagulation earthen platform, the width at described expansion joint increases, and the width of described preset slot reduces.
2. a kind of variable-width bridge expanssion joint test platform as claimed in claim 1, it is characterized in that, described base component includes cushion cap and is arranged on many prefabricated piles bottom described cushion cap, described bottom steel plate is laid on described cushion cap, and described second coagulation earthen platform, the described first supplementary pavement concrete platform and described second supplement pavement concrete platform and be cast on described cushion cap.
3. a kind of variable-width bridge expanssion joint test platform as claimed in claim 2, it is characterized in that, described force application apparatus includes being arranged on two the first jack of two edges of side in described bottom steel plate, being arranged on two the second jack of two edges of opposite side in described bottom steel plate, the top cap of described first jack abuts with the side of steel plate side, described top, exerted a force by top steel plate described in described first jack pair, make the width at described expansion joint reduce；The top cap of described second jack abuts with the side of described top steel plate opposite side, is exerted a force by top steel plate described in described second jack pair, makes the width at described expansion joint increase.
4. a kind of variable-width bridge expanssion joint test platform as claimed in claim 3, it is characterized in that, connecting by the first fastening assembly and the second fastening assembly are fixing between described top steel plate and described bottom steel plate, described first fastening assembly includes: the first fluting being arranged on steel plate both sides, described top, the multiple first reserved screw being arranged in the described bottom steel plate corresponding with described first slotting position and the described first reserved screw with the use of the first bolt and with described first bolt with the use of the first nut；Described second fastening assembly includes: the multiple second reserved screw be arranged on the fluting of three arranged in parallel second in the steel plate of described top, being arranged in the described bottom steel plate corresponding with described second slotting position and the described second reserved screw with the use of the second bolt and with described second bolt with the use of the second nut；Described pavement concrete platform is additionally provided with the through slot corresponding with described second slotting position.
5. a kind of variable-width bridge expanssion joint test platform as claimed in claim 4, it is characterised in that the distance between the described through slot in two, outside is less than the wheel clear distance of test vehicle.
6. a kind of variable-width bridge expanssion joint test platform as claimed in claim 5, it is characterised in that between described cushion cap with described bottom steel plate, be connected by shearing connecting piece between described top steel plate and described pavement concrete platform.
7. a kind of variable-width bridge expanssion joint test platform as claimed in claim 6, it is characterized in that, the change width at described expansion joint ranges for 0～16cm, and the width at described expansion joint is become from 0 in the process of 16cm, and the width of described preset slot is become 0 from 16cm accordingly.
8. a kind of variable-width bridge expanssion joint test platform as claimed in claim 7, it is characterized in that, described Part I component is the first expansion joint module of 1m and constitutes along width of roadway direction close-packed arrays by three length, and the second expansion joint module close-packed arrays being 1m by three length that described Part II component is corresponding is constituted.
9. a kind of variable-width bridge expanssion joint test platform as claimed in claim 8, it is characterized in that, waterproof awning it is covered with above described test platform, described waterproof awning is fixed by the road surface that awning base station and described cushion cap are peripheral and is connected, it is 2～5 ° of inclined planes that the end face of described waterproof awning is arranged to angle of inclination, and the minimum altitude of described waterproof awning is more than the height of test vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620051791.5U CN205352681U (en) | 2016-01-20 | 2016-01-20 | Variable width bridge expansion joint test platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620051791.5U CN205352681U (en) | 2016-01-20 | 2016-01-20 | Variable width bridge expansion joint test platform |
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| CN205352681U true CN205352681U (en) | 2016-06-29 |
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| CN201620051791.5U Withdrawn - After Issue CN205352681U (en) | 2016-01-20 | 2016-01-20 | Variable width bridge expansion joint test platform |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510020A (en) * | 2016-01-20 | 2016-04-20 | 宁波大学 | Variable-width bridge expansion joint test platform and construction method thereof |
| CN109459380A (en) * | 2018-12-28 | 2019-03-12 | 山东路达试验仪器有限公司 | A kind of servo microcomputer control bridge expanssion joint performance test apparatus |
| CN110255208A (en) * | 2019-06-27 | 2019-09-20 | 中国能源建设集团安徽省电力设计院有限公司 | Across the transfer station and construction method of original coal transporting trestle |
| CN113567072A (en) * | 2021-04-30 | 2021-10-29 | 东南大学 | Simulation experiment device and method for bridge expansion joint crack propagation |
-
2016
- 2016-01-20 CN CN201620051791.5U patent/CN205352681U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510020A (en) * | 2016-01-20 | 2016-04-20 | 宁波大学 | Variable-width bridge expansion joint test platform and construction method thereof |
| CN105510020B (en) * | 2016-01-20 | 2017-09-29 | 宁波大学 | A kind of variable-width bridge expanssion joint test platform and its construction method |
| CN109459380A (en) * | 2018-12-28 | 2019-03-12 | 山东路达试验仪器有限公司 | A kind of servo microcomputer control bridge expanssion joint performance test apparatus |
| CN110255208A (en) * | 2019-06-27 | 2019-09-20 | 中国能源建设集团安徽省电力设计院有限公司 | Across the transfer station and construction method of original coal transporting trestle |
| CN110255208B (en) * | 2019-06-27 | 2024-04-26 | 中国能源建设集团安徽省电力设计院有限公司 | Transfer station crossing original coal conveying trestle and construction method |
| CN113567072A (en) * | 2021-04-30 | 2021-10-29 | 东南大学 | Simulation experiment device and method for bridge expansion joint crack propagation |
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