CN207091902U - Arch bridge flexibility hinge device and arch bridge - Google Patents

Abstract

The utility model provides a kind of arch bridge flexibility hinge device and arch bridge, belong to science of bridge building field, including at least one hinge unit and connector, at least one hinge unit includes cage bar and auxiliary bar, cage bar includes two mounting grooves being oppositely arranged, the bottom land of each mounting groove is provided with auxiliary bar, and one end of auxiliary bar is connected with cage bar, and the notch of its other end towards mounting groove extends；Adjacent cage bar is connected by connector.The arch bridge flexibility hinge device can ensure main arch and spandrel arch adapter section after-pouring concrete construction quality, and it can effectively discharge caused additional stress in work progress, it effectively prevent the Local Cracking of main arch and spandrel arch combination section concrete, pouring quality is improved, improves the fastness and security of pontic.

Description

Arch bridge flexibility hinge device and arch bridge

Technical field

Science of bridge building field is the utility model is related to, in particular to a kind of arch bridge flexibility hinge device and arch bridge.

Background technology

Certain herbaceous plants with big flowers type arch bridge spandrel construction eliminates column or diagonal brace, changes and is directly connected to both sides master across main pier using spandrel arch Arch, big arch fold small arch above so that rich in stereovision, and because its bridge type is slim and graceful, penetrating, moulding obtains bridge facade as sunflower valve Name.The traditional thick and heavy U.S. of the existing arch bridge of certain herbaceous plants with big flowers type arch bridge, and show because of its line style the agile U.S. in generation, there is prominent aesthetics effect Fruit.Because pier top spandrel arch connects both sides main arch, horizontal thrust effect is produced to main arch so that main arch bears the work of concentrated force With adding the stress complexity of structure, and main spandrel arch binding site stress is particularly complicated.

Main spandrel arch binding site can produce local additional stress under construction loads effect, and the region is concrete cracks There is high frequency region.

Inventor has found that traditional main abdomen arch bridge structure at least has the disadvantage that in work progress under study for action：

Easily is there is crack, Jin Erying after the completion of construction at the link position of main arch and spandrel arch in traditional main abdomen arch bridge structure Ring the total quality of pontic and reduce the safety in utilization of pontic.

Utility model content

The purpose of this utility model is to provide a kind of arch bridge flexibility hinge device, constructed with the main spandrel arch bridge for improving traditional During concrete and rebar construction bonds fastness is poor, has poured during after-pouring concrete at the link position of main arch and spandrel arch Into rear the problem of causing poor crossstructure stability, security difference easy to crack.

The purpose of this utility model is to provide a kind of arch bridge, to improve traditional main spandrel arch bridge main arch in work progress With concrete and rebar construction bonds fastness is poor during after-pouring concrete at the link position of spandrel arch, pour after the completion of it is easy to crack The problem of causing poor crossstructure stability, security difference.

What embodiment of the present utility model was realized in：

Based on above-mentioned first purpose, the utility model provides a kind of arch bridge flexibility hinge device, including at least one hinge list Member and connector, at least one hinge unit include cage bar and auxiliary bar, and main ribs are oppositely arranged including two Mounting groove, the bottom land of each mounting groove is provided with the auxiliary bar, and one end of the auxiliary bar is connected with main ribs, The notch of its other end towards the mounting groove extends；Adjacent main ribs are connected by the connector.

In the utility model preferred embodiment, main ribs are arranged to I-steel, and main ribs include two wings Plate and the web between two wing plates, the wing plate are fixedly connected with the web, are set on each wing plate The auxiliary bar is equipped with, the auxiliary bar is respectively arranged with two plate faces of the web.

In the utility model preferred embodiment, each hinge unit also includes shrouding, the both ends point of main ribs One shrouding is not installed, the auxiliary bar is provided with the plate face of the remote main ribs of the shrouding.

In the utility model preferred embodiment, the hinge unit also includes reinforcing member, and the reinforcing member is located at institute State in mounting groove, and the reinforcing member is connected with two wing plates.

In the utility model preferred embodiment, main ribs are provided with perfusing hole, and the perfusing hole connects the peace Tankage.

In the utility model preferred embodiment, the hinge unit also includes guiding piece, and the guiding piece is positioned at described In perfusing hole, the guiding piece is rotatably connected in main ribs, and the guiding piece is relative in main ribs rotation process, institute The perfusing hole can be opened or close by stating guiding piece.

In the utility model preferred embodiment, the guiding piece is tabular, and the guiding piece includes drawing positioned at described The first plate portion and the second plate portion of the pivot center both sides of guiding element and main ribs, limited location is set in first plate portion Part, the locating part are located in the mounting groove, and the locating part is used to limit first plate portion around the pivot center edge Direction away from the mounting groove is turned to outside the perfusing hole；Set between second plate portion and main ribs flexible Part, the elastic component make the locating part be pushed against on the inwall of the mounting groove.

In the utility model preferred embodiment, a plate face of first plate portion is arranged to the first inclined-plane, and described One inclined-plane is located at outside the mounting groove；One plate face of second plate portion is arranged to the second inclined-plane, and second inclined-plane is located at institute State in mounting groove.

In the utility model preferred embodiment, the locating part includes guide plate and more positive stop strips, described to lead The 3rd inclined-plane is arranged to a plate face of plate, one end of the more positive stop strips is arranged in first plate portion, described in more The other end of positive stop strip is arranged on the guide plate, length direction interval of the more positive stop strips along the pivot center Arrangement, the cell wall of the 3rd inclined-plane towards the mounting groove are set；First plate portion is around the pivot center along away from institute The direction for stating mounting groove rotates positive stop strip when being rotated relative to main ribs and is pushed against on the cell wall of the mounting groove.

Based on above-mentioned second purpose, the utility model provides a kind of arch bridge, including main arch, spandrel arch and described arch bridge Flexible hinge device, the main arch are connected with the spandrel arch by arch bridge flexibility hinge device.

The beneficial effect of the utility model embodiment is：

In summary, the utility model embodiment provides a kind of arch bridge flexible hinge, and its is simple and reasonable, just Process, installed with easy to use in manufacture, meanwhile, the arch bridge flexibility hinge device can ensure main arch and spandrel arch adapter section after-pouring Concrete construction quality, and caused additional stress in work progress can be effectively discharged, it effectively prevent main arch and spandrel arch With reference to the Local Cracking of section concrete, pouring quality is improved, improves the fastness and security of pontic.It is specific as follows：

The arch bridge flexibility hinge device that the present embodiment provides, including at least one hinge unit, each unit that cuts with scissors include cage bar And auxiliary bar, cage bar include two mounting grooves being oppositely arranged, and auxiliary bar, one end of auxiliary bar are provided with mounting groove It is connected with the bottom land of mounting groove, the notch of the other end towards mounting groove extends, and adjacent cage bar is connected by connector.In reality During construction, hinge unit arrangement is in a row-shaped, the cage bar of adjacent hinge unit connects the similar bar frame of composition by connector Structure.When progress main arch ring pours, the side of arch bridge flexibility hinge device is embedded in main arch ring, treats arch bridge system transform After the completion of, then pouring for main arch and spandrel arch adapter section is carried out, the arch bridge flexibility hinge device being exposed is wrapped in concrete. When carrying out concreting, being firmly combined with for concrete and cage bar and auxiliary bar is reliable, is easy to concrete vibrating closely knit, together When, caused concentrated stress in work progress can be discharged by arch bridge flexibility hinge device, avoid spandrel arch and main arch binding site Concrete cracking, improve the quality of construction and the security of pontic.

The arch bridge that the present embodiment provides includes above-mentioned arch bridge flexibility hinge device, has the institute of above-mentioned arch bridge flexibility hinge device There is advantage.

Brief description of the drawings

, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also To obtain other related accompanying drawings according to these accompanying drawings.

Fig. 1 is the structural representation of the arch bridge flexibility hinge device of the utility model embodiment；

Fig. 2 is a visual angle schematic diagram of the hinge unit of the arch bridge flexibility hinge device of the utility model embodiment；

Fig. 3 is another visual angle schematic diagram of the hinge unit of the arch bridge flexibility hinge device of the utility model embodiment；

Fig. 4 is the cage bar and guiding piece, the mounting structure of locating part of the arch bridge flexibility hinge device of the utility model embodiment Schematic diagram；

Fig. 5 is the close-up schematic view in this Fig. 4；

Fig. 6 is the cage bar and guiding piece, the mounting structure of locating part of the arch bridge flexibility hinge device of the utility model embodiment Application state schematic diagram；

Fig. 7 is the application state schematic diagram of the arch bridge flexibility hinge device of the utility model embodiment.

Icon：1- arch bridge flexibility hinge devices；10- cuts with scissors unit；11- cage bars；111- wing plates；112- webs；113- Mounting groove；114- perfusing holes；12- auxiliary bars；20- connectors；30- reinforcing members；40- shroudings；50- guiding pieces；51- First plate portion；The inclined-planes of 511- first；The plate portions of 52- second；The inclined-planes of 521- second；60- locating parts；61- positive stop strips；62- Guide plate；The inclined-planes of 621- the 3rd；622- wedge gaps；70- elastic components；80- rotating shafts；100- main arch；After 200- spandrel arch Pour section.

Embodiment

Reinforced concrete arch bridge is a kind of common type of bridge, is largely used in river, valley is crossed over.Arch Bridge Ribs Main arch ring and spandrel arch circle composition are generally comprised, is considered under dead load+cooling+spandrel arch arch springing mobile load least favorable effect, spandrel arch arch springing Upper limb maximum tension stress can exceed that the tension limit of concrete, and the arch springing and load loading zone of spandrel arch most probably cause out Cracking.Hinge (not exclusively hinge) is generally set at arch springing in spandrel arch, is concrete entity section at hinge, the top bottom surface in arch springing section is slotted, Pour, be connected with main arch junction using regular reinforcement at twice, construct main arch when pre-buried spandrel arch arch springing reinforcing bar, it is to be onstructed complete After bridge deck, spandrel arch support is removed, spandrel arch envelope hinge is carried out, forms fixed arch.Constructed according to common design process, due to main arch Intersection location reinforcing bar is intensive, and the single intensive cage bar of arrangement, almost forms steel platy structure, can not ensure coagulation in main arch top plate Native blanking and vibration compacting.Spandrel arch envelope hinge difficulty is big in construction, it is difficult to ensures the region concrete construction quality.

In consideration of it, inventor devises a kind of arch bridge flexibility hinge device 1 and arch bridge, arch bridge flexibility hinge device 1 includes more The spaced cage bar 11 of root and the auxiliary bar 12 in cage bar 11, it is arranged at intervals between cage bar 11 and passes through connector 20 Entirety is connected as, flexible hinge device is embedded in main arch 100 encloses when constructing main arch 100, after spandrel arch support removing, in abdomen Arch connects with casting concrete at main arch 100, because flexible hinge device has space, is easy to the flowing of concrete, improves coagulation Native and the being firmly combined with property of flexible hinge device.

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and The component of the utility model embodiment shown can be configured to arrange and design with a variety of.

Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.

, it is necessary to explanation, the orientation of the instruction such as term " on ", " under ", " interior ", " outer " in description of the present utility model Or position relationship be based on orientation shown in the drawings or position relationship, or the utility model product using when usually put Orientation or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply signified dress Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model Limitation.In addition, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relatively important Property.

In description of the present utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set Put ", " installation ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary. For the ordinary skill in the art, it can understand that specific in the utility model of above-mentioned term containing with concrete condition Justice.

It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can To be mutually combined.

Arch bridge flexible hinge device embodiment

Referring to Fig. 1, present embodiments providing a kind of arch bridge flexibility hinge device 1, include at least one hinge unit 10, connect Fitting 20, reinforcing member 30, shrouding 40, guiding piece 50, locating part 60, elastic component 70 and rotating shaft 80.

Fig. 2-Fig. 6 is referred to, hinge unit 10 includes cage bar 11 and auxiliary bar 12, and cage bar 11 is arranged to I-steel, main Muscle 11 includes two wing plates being oppositely arranged 111 and including the web 112 between two wing plates 111, wing plate 111 Rectangular plate-like, web 112 are rectangular plate-like, the plate face of the plate face of web 112 perpendicular to two wing plates 111.Web 112 and two Wing plate 111 constitutes the cage bar 11 with two mounting grooves 113.It is provided with two irrigation and drainage geats 114 on a wing plate 111, two Irrigation and drainage geat 114 is located at the both sides of the plate face of web 112, positioned at length of the multiple perfusing holes 114 along wing plate 111 of same row Direction is intervally arranged.Each perfusing hole 114 is rectangular aperture.More are welded with the plate face of the remote web 112 of wing plate 111 Auxiliary bar 12, auxiliary bar 12 are set perpendicular to the plate face of wing plate 111；In two plate face (bottom lands of mounting groove 113 of web 112 Wall) on be respectively arranged with more auxiliary bars 12, one end of every auxiliary bar 12 is arranged on web 112, and the other end is towards installation The notch extension of groove 113, further, auxiliary bar 12 is set perpendicular to the plate face of web 112.

Connector 20 is used to connect adjacent hinge unit 10, and connector 20 can be the steel constructions such as steel plate, reinforcing bar, and structure is simple It is single, it is easy to manufacture to process, convenient material drawing, saves manufacturing cost.

Reinforcing member 30 is reinforcing bar or steel plate, in mounting groove 113, playing the work of two wing plates 111 of support With.In the present embodiment, reinforcing member 30 is reinforcing bar, and the both ends of reinforcing member 30 are respectively welded on two wing plates 111, and reinforcing member 30 hangs down Directly set in the plate face of wing plate 111.The quantity of reinforcing member 30 is set on demand, is limited herein without specific.

Shrouding 40 is steel plate, is respectively welded a shrouding 40 at the both ends of every cage bar 11, shrouding 40 respectively with web 112 It is welded and fixed with two wing plates 111.More auxiliary bars 12 are welded on shrouding 40, auxiliary bar 12 is set perpendicular to shrouding 40 Put, auxiliary bar 12 is located in the plate face of the remote cage bar 11 of shrouding 40.

Guiding piece 50 is designed as rectangular plate-like, and guiding piece 50 is provided with rotation hole, axis and the guiding piece 50 of rotation hole The center line of length direction overlaps, and guiding piece 50 has the first plate portion 51 and the second plate portion 52 positioned at the axis both sides of rotation hole, The first inclined-plane 511 is provided with one plate face of the first plate portion 51, the second inclined-plane is provided with a plate face of second plate portion 52 521, the first inclined-plane 511 and the second inclined-plane 521 are located at the both sides of the plate face of guiding piece 50.

Locating part 60 includes guide plate 62 and more positive stop strips 61, and a plate face of guide plate 62 is arranged to the 3rd inclined-plane 621, positive stop strip 61 is rectangular strip, and one end of positive stop strip 61 is used to being arranged on the first plate portion 51, the other end of positive stop strip 61 and Guide plate 62 connects.More positive stop strips 61 are arranged at intervals, and are laid on guide plate 62.

Elastic component 70 is arranged to spring；Rotating shaft 80 is cylindrical shaft.

Referring to Fig. 7, the arch bridge flexibility hinge device 1 that the present embodiment provides, multiple hinge units 10 are connected by connector 20 Connect, the more spacing side by side of cage bar 11 of multiple hinge units 10 are set, i.e. more cage bars 11 are generally aligned in the same plane interior and more cage bars 11 be arranged in parallel.More auxiliary bars 12 being intervally arranged are respectively welded in two plate faces of the web 112 of every cage bar 11, aid in Muscle 12 is set perpendicular to web 112, and more auxiliary bars 12 of welding are respectively perpendicular in the outside plate face of wing plate 111.By positive stop strip 61 are welded in the first plate portion 51, and more positive stop strips 61 are intervally arranged along the axis of rotation hole, the inclined-plane of positive stop strip 61 and first 511 are located at the both sides of the first plate portion 51, and the 3rd inclined-plane 621 on guide plate 62 is set towards the first plate portion 51, then using drawing Guiding piece 50 is located in rotating shaft 80 by the rotation hole of guiding element 50.The rotating shaft 80 for being equipped with guiding piece 50 is welded on wing plate 111 On, rotating shaft 80 is located at perfusing hole 114, and the both ends of rotating shaft 80 are respectively welded in relative two side wall of perfusing hole 114, turns Axle 80 is set perpendicular to the plate face of web 112, and perfusing hole 114 is separated to form two through holes by rotating shaft 80.After the completion of welding, guiding Part 50 is located in perfusing hole 114, and positive stop strip 61 and guide plate 62 are located in mounting groove 113, the court of the 3rd inclined-plane 621 of guide plate 62 Set to perfusing hole 114, the madial wall on the 3rd inclined-plane 621 and wing plate 111 forms wedge gap 622.Meanwhile guiding piece 50 around Rotating shaft 80 rotates relative to cage bar 11, and due to the structure design of positive stop strip 61 and guide plate 62, guiding piece 50 is relative to cage bar In 11 rotation processes, positive stop strip 61 and guide plate 62 can be pushed against on wing plate 111, and then limit a side of guiding piece 50 To rotation, setting guiding piece 50 is sealed on perfusing hole 114 (plane at the place of the plate face of guiding piece 50 and perfusing hole 114 is parallel) When be original state, the first plate portion 51 is towards rotating to rotate clockwise in mounting groove 113, and the second plate portion 52 is towards mounting groove Rotated in 113 to rotate counterclockwise, the structure design of positive stop strip 61 and limiting plate can limit guiding piece 50 in the counterclockwise direction On rotation trend, i.e., when guiding piece 50 is along the madial wall that wing plate 111 is pushed against counterclockwise to locating part 60, draw Guiding element 50 can not be rotated further.In order to further limit the rotation of guiding piece 50, irrigated in the second plate portion 52 with being not provided with Elastic component 70 is provided between the wing plate 111 of mouth 114, elastic component 70 is in extended state so that locating part 60 keeps being pushed against the wing State on plate 111.

In work progress, multiple hinge units 10 are connected by connector 20 forms an overall structure, and hinge device is inclined Tiltedly set, the side of hinge device is embedded in main arch 100 encloses, the perfusing hole 114 in cage bar 11 is towards concreting side, i.e., Upward, the position of the first plate portion 51 and at same perfusing hole 114 is less than the position of the second plate portion 52, due to elastic component 70 Effect, guiding piece 50 is sealed at perfusing hole 114, and when carrying out concreting, concrete is flow at perfusing hole 114 When, drive guiding piece 50 to rotate clockwise, open perfusing hole 114, concrete facilitates access in mounting groove 113, is easy to and pacifies Reinforcing member 30, auxiliary bar 12 in tankage 113 combine, meanwhile, the concrete entered from bottom in mounting groove 113 be introduced into In wedge gap 622, it can equally realize that rotating clockwise for guiding piece 50 opens perfusing hole 114, concrete is easy to from perfusion Mouth 114 is entered in mounting groove 113.Further, the first inclined-plane 511 and are respectively arranged with two plate faces of guiding piece 50 Two inclined-planes 521, for concrete when touching the first inclined-plane 511 and the second inclined-plane 521, guiding piece 50 has guide effect, can Smoothly enter in mounting groove 113, in casting process, concrete is firmly combined with reliably with hinge device.

The arch bridge flexibility hinge device 1 that the present embodiment provides, for all parts using being welded and fixed, processing and manufacturing is simple, has At least following advantage：

Adaptability is good：The utility model can be as needed, adapts to different in width, the sunflower-shaped arch bridge of different ratios of rise to span is wanted Ask.Both it had been suitable to the big arch bridge of arch ring width, and had been also suitable for the small arch bridge of arch ring width；Both it had been suitable to the big arch bridge of ratio of rise to span, had been also suitable for The big arch bridge of ratio of rise to span；

It is simple in construction：The utility model structure includes cage bar 11, connector 20, reinforcing member 30, auxiliary bar 12, shrouding 40 etc. Structure is by being welded and fixed；

It is convenient to make：The cage bar 11 that the utility model uses is made up of I-steel, and auxiliary bar 12 is made up of steel nail, can basis Model is needed directly to purchase；Connector 20 and reinforcing member 30 are made up of Steel material, and works can be completed by simple processing Manufacture；

Good economy performance：The utility model is easy for construction, improves construction efficiency, can effectively reduce project cost；

It is good with prospect：The utility model is for significant during sunflower-shaped Arch Bridge Construction, it is ensured that main spandrel arch combines Pouring concrete construction quality after section, and caused additional stress in release work progress can be imitated, avoid the region concrete Local Cracking.

The arch bridge flexibility hinge device 1 that the present embodiment provides, is made of welded steel, and whole hinge device is in have multiple lead to The platy structure in hole, whole hinge device have certain deformability in concreting process, i.e., in flexibility, were pouring Caused additional stress in work progress can be effectively discharged in journey.

Arch bridge embodiment

Present embodiments provide a kind of arch bridge, including the arch bridge flexible hinge described in main arch 100, spandrel arch and above-described embodiment Device 1, main arch 100 are connected with spandrel arch by arch bridge flexibility hinge device 1.

Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.

Claims (10)

1. a kind of arch bridge flexibility hinge device, it is characterised in that at least one described including at least one hinge unit and connector Hinge unit includes cage bar and auxiliary bar, and main ribs include two mounting grooves being oppositely arranged, each mounting groove Bottom land is provided with the auxiliary bar, and one end of the auxiliary bar is connected with main ribs, and its other end is towards the mounting groove Notch extends；Adjacent main ribs are connected by the connector.

2. arch bridge flexibility hinge device according to claim 1, it is characterised in that main ribs are arranged to I-steel, described Cage bar includes two wing plates and the web between two wing plates, and the wing plate is fixedly connected with the web, The auxiliary bar is provided with each wing plate, the auxiliary bar is respectively arranged with two plate faces of the web.

3. arch bridge flexibility hinge device according to claim 2, it is characterised in that each hinge unit also includes shrouding, The both ends of main ribs are separately installed with a shrouding, are provided with the plate face of the remote main ribs of the shrouding described Auxiliary bar.

4. arch bridge flexibility hinge device according to claim 3, it is characterised in that the hinge unit also includes reinforcing member, The reinforcing member is located in the mounting groove, and the reinforcing member is connected with two wing plates.

5. the arch bridge flexibility hinge device according to claim any one of 1-4, it is characterised in that main ribs are provided with filling Geat, the perfusing hole connect the mounting groove.

6. arch bridge flexibility hinge device according to claim 5, it is characterised in that the hinge unit also includes guiding piece, institute State guiding piece to be located in the perfusing hole, the guiding piece is rotatably connected in main ribs, and the guiding piece is relative to described In cage bar rotation process, the perfusing hole can be opened or closed to the guiding piece.

7. arch bridge flexibility hinge device according to claim 6, it is characterised in that the guiding piece is tabular, the guiding Part includes the first plate portion and the second plate portion of the pivot center both sides positioned at the guiding piece and main ribs, first plate Finite place piece is set in portion, the locating part is located in the mounting groove, the locating part be used for limit first plate portion around The pivot center is turned to outside the perfusing hole along the direction away from the mounting groove；Second plate portion and main ribs it Between be provided with elastic component, the elastic component makes the locating part be pushed against on the inwall of the mounting groove.

8. arch bridge flexibility hinge device according to claim 7 a, it is characterised in that plate face of first plate portion is arranged to First inclined-plane, first inclined-plane are located at outside the mounting groove；One plate face of second plate portion is arranged to the second inclined-plane, described Second inclined-plane is located in the mounting groove.

9. arch bridge flexibility hinge device according to claim 8, it is characterised in that the locating part includes guide plate and more Root positive stop strip, a plate face of the guide plate are arranged to the 3rd inclined-plane, and one end of the more positive stop strips is arranged on described first In plate portion, the other ends of the more positive stop strips is arranged on the guide plate, and the more positive stop strips are along the rotary shaft The length direction of line is intervally arranged, and the cell wall of the 3rd inclined-plane towards the mounting groove is set；First plate portion is around described Pivot center rotates positive stop strip when being rotated relative to main ribs along the direction away from the mounting groove and is pushed against the peace On the cell wall of tankage.

10. a kind of arch bridge, it is characterised in that including main arch, spandrel arch and the arch bridge according to claim any one of 1-9 Flexible hinge device, the main arch are connected with the spandrel arch by arch bridge flexibility hinge device.