CN107237250B - Flexible hinge device of arch bridge and arch bridge - Google Patents
Flexible hinge device of arch bridge and arch bridge Download PDFInfo
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- CN107237250B CN107237250B CN201710616180.XA CN201710616180A CN107237250B CN 107237250 B CN107237250 B CN 107237250B CN 201710616180 A CN201710616180 A CN 201710616180A CN 107237250 B CN107237250 B CN 107237250B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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Abstract
The invention provides an arch bridge flexible hinge device and an arch bridge, belonging to the field of bridge engineering and comprising at least one hinge unit and a connecting piece, wherein the at least one hinge unit comprises a main rib and an auxiliary rib; the adjacent main ribs are connected through a connecting piece. The arch bridge flexible hinge device can ensure the construction quality of pouring concrete after the main arch and the abdominal arch combined section, can effectively release additional stress generated in the construction process, effectively avoids local cracking of concrete at the main arch and the abdominal arch combined section, improves the pouring quality, and improves the firmness and the safety of a bridge body.
Description
Technical Field
The invention relates to the field of bridge engineering, in particular to an arch bridge flexible hinge device and an arch bridge.
Background
The sunflower-shaped arch bridge arch building cancels the upright post or the diagonal brace, adopts the abdominal arch to span the main pier to directly connect the main arches at two sides, and folds the small arch on the large arch, so that the vertical face of the bridge is layered, and the bridge is famous because of light and transparent bridge shape and the shape like sunflower petals. The sunflower type arch bridge not only has the traditional thickness and beauty of the arch bridge, but also shows the modern agility and beauty due to the line type, and has outstanding aesthetic effect. Because the pier top abdominal arch is connected with the main arches at the two sides, a horizontal thrust effect is generated on the main arches, so that the main arches bear the action of a concentrated force, the stress complexity of the structure is increased, and the stress of the joint part of the main abdominal arches is particularly complex.
The main abdominal arch joint part can generate local additional stress under the action of construction load, and the area is a high-frequency area where concrete cracks appear.
The inventor finds in research that the traditional main abdominal arch bridge structure has at least the following disadvantages in the construction process:
the traditional main abdominal arch bridge structure is easy to crack at the connecting position of the main arch and the abdominal arch after construction, so that the overall quality of the bridge body is influenced, and the use safety of the bridge body is reduced.
Disclosure of Invention
The invention aims to provide an arch bridge flexible hinge device to solve the problems that the traditional main-belly arch bridge is poor in bonding firmness between concrete and a steel bar structure when the concrete is poured behind the connecting position of a main arch and a belly arch in the construction process, and the bridge body is poor in structural stability and safety due to the fact that the bridge body is prone to cracking after pouring is completed.
The invention aims to provide an arch bridge to solve the problems that the traditional main-belly arch bridge is poor in bonding firmness between concrete and a steel bar structure when the concrete is poured behind the connecting position of a main arch and a belly arch in the construction process, and the bridge body is poor in structural stability and safety due to the fact that the concrete is prone to cracking after pouring is finished.
The embodiment of the invention is realized by the following steps:
based on the first purpose, the invention provides an arch bridge flexible hinge device, which comprises at least one hinge unit and a connecting piece, wherein at least one hinge unit comprises a main rib and an auxiliary rib, the main rib comprises two oppositely arranged installation grooves, the auxiliary rib is arranged at the bottom of each installation groove, one end of each auxiliary rib is connected with the main rib, and the other end of each auxiliary rib extends towards the notch of the installation groove; and the adjacent main ribs are connected through the connecting piece.
In a preferred embodiment of the present invention, the main rib is an i-steel, the main rib includes two wing plates and a web plate located between the two wing plates, the wing plates are fixedly connected to the web plate, each wing plate is provided with the auxiliary rib, and two plate surfaces of the web plate are respectively provided with the auxiliary ribs.
In a preferred embodiment of the present invention, each hinge unit further includes a sealing plate, two ends of the main rib are respectively provided with one sealing plate, and a plate surface of the sealing plate, which is far away from the main rib, is provided with the auxiliary rib.
In a preferred embodiment of the present invention, the hinge unit further includes a reinforcing member, the reinforcing member is located in the mounting groove, and the reinforcing member is connected to the two wing plates.
In a preferred embodiment of the invention, the main rib is provided with a pouring opening, and the pouring opening is communicated with the mounting groove.
In a preferred embodiment of the present invention, the hinge unit further includes a guide member, the guide member is located in the pouring port, the guide member is rotatably connected to the main rib, and the guide member can open or close the pouring port during rotation of the guide member relative to the main rib.
In a preferred embodiment of the present invention, the guide is a plate, the guide includes a first plate portion and a second plate portion located at two sides of a rotation axis of the guide and the main rib, the first plate portion is provided with a limiting member, the limiting member is located in the mounting groove, and the limiting member is configured to limit the first plate portion to rotate around the rotation axis to the outside of the pouring opening along a direction away from the mounting groove; an elastic piece is arranged between the second plate part and the main rib, and the elastic piece enables the limiting piece to be tightly abutted against the inner wall of the mounting groove.
In a preferred embodiment of the present invention, a plate surface of the first plate portion is provided as a first inclined surface, and the first inclined surface is located outside the mounting groove; a face of the second plate portion is set to be a second inclined face, and the second inclined face is located in the mounting groove.
In a preferred embodiment of the present invention, the limiting member includes a guide plate and a plurality of limiting strips, a plate surface of the guide plate is provided with a third inclined surface, one end of each of the limiting strips is installed on the first plate portion, the other end of each of the limiting strips is installed on the guide plate, the limiting strips are arranged at intervals along the length direction of the rotation axis, and the third inclined surface is arranged toward a groove wall of the installation groove; when the first plate portion rotates around the rotating axis in the direction far away from the mounting groove and rotates relative to the main rib, the limiting strip abuts against the groove wall of the mounting groove.
Based on the second purpose, the invention provides an arch bridge, which comprises a main arch, an abdominal arch and the arch bridge flexible hinge device, wherein the main arch and the abdominal arch are connected through the arch bridge flexible hinge device.
The embodiment of the invention has the beneficial effects that:
in summary, the embodiment of the invention provides an arch bridge flexible hinge device, which has a simple and reasonable structure, is convenient to manufacture and process, and is convenient to install and use, and meanwhile, the arch bridge flexible hinge device can ensure the construction quality of concrete pouring behind a main arch and abdominal arch joint section, can effectively release additional stress generated in the construction process, effectively avoids local cracking of concrete at the main arch and abdominal arch joint section, improves the pouring quality, and improves the firmness and safety of a bridge body. The method comprises the following specific steps:
the flexible hinge device of arched bridge that this embodiment provided, including at least one hinge unit, every hinge unit is including main muscle and supplementary muscle, and main muscle is installed supplementary muscle including the mounting groove of two relative settings in the mounting groove, and the one end of supplementary muscle is connected with the tank bottom of mounting groove, and the other end extends towards the notch of mounting groove, and adjacent main muscle passes through the connecting piece and connects. During actual construction, the hinge units are arranged in rows, and main reinforcements of adjacent hinge units are connected through connecting pieces to form a structure similar to a reinforcing steel bar net rack. When the main arch ring is poured, one side of the arch bridge flexible hinge device is embedded in the main arch ring, after the arch bridge system is converted, the main arch and abdominal arch combined section is poured, and the exposed arch bridge flexible hinge device is wrapped in concrete. When concrete placement is carried out, the combination of concrete and main muscle and supplementary muscle is firm reliable, and the concrete of being convenient for vibrates closely knit, simultaneously, can release the concentrated stress that produces in the work progress through the flexible hinge means of arched bridge, avoids abdominal arch and main arch joint position concrete fracture, has improved the quality of construction and the security of the pontic.
The arch bridge provided by the embodiment comprises the arch bridge flexible hinge device, and has all the advantages of the arch bridge flexible hinge device.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a flexible hinge device of an arch bridge according to an embodiment of the invention;
fig. 2 is a schematic view from a perspective of a hinge unit of an arch bridge flexible hinge device according to an embodiment of the present invention;
fig. 3 is another perspective view schematically illustrating a hinge unit of the arch bridge flexible hinge device according to the embodiment of the present invention;
fig. 4 is a schematic view showing an installation structure of a main rib and a guide member and a stopper of an arch bridge flexible hinge device according to an embodiment of the present invention;
FIG. 5 is an enlarged partial schematic view of FIG. 4;
fig. 6 is a schematic view showing an application state of a mounting structure of a main rib and a guide member and a stopper of an arch bridge flexible hinge device according to an embodiment of the present invention;
fig. 7 is a schematic view of an application state of the arch bridge flexible hinge device of the embodiment of the invention.
Icon: 1-arch bridge flexible hinge device; 10-a hinge unit; 11-main reinforcement; 111-wing plate; 112-a web; 113-a mounting groove; 114-an infusion port; 12-auxiliary ribs; 20-a connector; 30-a reinforcement; 40-closing the plate; 50-a guide; 51-a first plate portion; 511-a first bevel; 52-a second plate portion; 521-a second bevel; 60-a stop; 61-a limit bar; 62-a guide plate; 621-a third inclined plane; 622-wedge gap; 70-an elastic member; 80-a rotating shaft; 100-main arch; 200-abdominal arch post-pouring section.
Detailed Description
Reinforced concrete arch bridges are a common bridge form and are widely used in crossing rivers and canyons. The arch bridge arch ring usually comprises a main arch ring and an abdominal arch ring, and considering that under the most adverse effects of constant load, cooling and live load of the abdominal arch foot, the maximum tensile stress of the upper edge of the abdominal arch foot may exceed the tensile stress limit of concrete, and the arch foot of the abdominal arch and a load loading area are very likely to cause cracking. Usually, hinges (incomplete hinges) are arranged at the arch foot positions of the abdominal arches, concrete solid sections are arranged at the hinge positions, the top and bottom surfaces of the cross sections of the arch feet are grooved, pouring is carried out in two times, common steel bars are adopted for connection with the main arches, the arch foot steel bars of the abdominal arches are pre-buried when the main arches are constructed, after a bridge deck system is constructed, the abdominal arch supports are dismantled, and abdominal arch sealing and hinging are carried out to form the hingeless arch. According to the construction of common design procedures, because the steel bars at the crossed positions of the main arches are dense, dense main bars are arranged in a single row in the top plate of the main arch, almost steel plate-shaped structures are formed, and the concrete blanking and the vibration compaction cannot be guaranteed. The difficulty of sealing the hinge of the abdominal arch is high in construction, and the construction quality of concrete in the area is difficult to ensure.
In view of this, the inventor has designed an arch bridge flexible hinge device and arch bridge, arch bridge flexible hinge device 1 includes the main muscle 11 of many interval settings and installs the supplementary muscle 12 on main muscle 11, the interval sets up and connects as whole through connecting piece 20 between the main muscle 11, with flexible hinge device pre-buried in main hunch 100 circles when constructing main hunch 100, treat that the abdominal arch support is demolishd the back, at abdominal hunch and main hunch 100 department concreting connection, because flexible hinge device has the space, be convenient for the flow of concrete, improve the combination fastness of concrete and flexible hinge device.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally put in use of products of the present invention, and are only for convenience of description and simplification of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Embodiments of flexible hinge device for arch bridge
Referring to fig. 1, the present embodiment provides an arch bridge flexible hinge device 1, which includes at least one hinge unit 10, a connecting member 20, a reinforcing member 30, a sealing plate 40, a guide member 50, a limiting member 60, an elastic member 70, and a rotating shaft 80.
Referring to fig. 2 to 6, the hinge unit 10 includes a main rib 11 and an auxiliary rib 12, the main rib 11 is an i-shaped steel, the main rib 11 includes two wing plates 111 disposed opposite to each other and a web plate 112 disposed between the two wing plates 111, the wing plates 111 are rectangular plate-shaped, the web plate 112 is rectangular plate-shaped, and a plate surface of the web plate 112 is perpendicular to plate surfaces of the two wing plates 111. The web 112 and the two wings 111 constitute a main rib 11 having two mounting grooves 113. Two rows of pouring openings 114 are formed in one wing plate 111, the two rows of pouring openings 114 are located on two sides of the plate surface of the web plate 112, and the plurality of pouring openings 114 located in the same row are arranged at intervals along the length direction of the wing plate 111. Each of the infusion ports 114 is a rectangular opening. A plurality of auxiliary ribs 12 are welded on the plate surface of the wing plate 111 far away from the web plate 112, and the auxiliary ribs 12 are arranged perpendicular to the plate surface of the wing plate 111; be provided with many supplementary muscle 12 on two faces of web 112 (the groove bottom wall of mounting groove 113) respectively, the one end of every supplementary muscle 12 is installed on web 112, and the other end extends towards the notch of mounting groove 113, and further, the face setting of supplementary muscle 12 perpendicular to web 112.
The connecting piece 20 is used for connecting the adjacent hinge units 10, the connecting piece 20 can be steel structures such as steel plates and steel bars, the structure is simple, manufacturing and processing are convenient, materials are convenient to obtain, and the manufacturing cost is saved.
The reinforcing member 30 is a reinforcing bar or a steel plate, and is installed in the installation groove 113 to support the two wing plates 111. In this embodiment, the reinforcement 30 is a steel bar, two ends of the reinforcement 30 are respectively welded to the two wing plates 111, and the reinforcement 30 is perpendicular to the plate surface of the wing plates 111. The number of the reinforcing members 30 is set as required, and is not particularly limited herein.
The sealing plates 40 are steel plates, one sealing plate 40 is welded to each end of each main rib 11, and the sealing plates 40 are welded and fixed to the web plate 112 and the two wing plates 111 respectively. A plurality of auxiliary ribs 12 are welded on the sealing plate 40, the auxiliary ribs 12 are perpendicular to the sealing plate 40, and the auxiliary ribs 12 are located on the surface of the sealing plate 40 far away from the main ribs 11.
The guide 50 is formed in a rectangular plate shape, the guide 50 is provided with a rotation hole, an axis of the rotation hole coincides with a center line of a longitudinal direction of the guide 50, the guide 50 has a first plate portion 51 and a second plate portion 52 located on both sides of the axis of the rotation hole, a first inclined surface 511 is provided on one plate surface of the first plate portion 51, a second inclined surface 521 is provided on one plate surface of the second plate portion 52, and the first inclined surface 511 and the second inclined surface 521 are located on both sides of the plate surface of the guide 50.
The limiting member 60 includes a guide plate 62 and a plurality of limiting strips 61, a plate surface of the guide plate 62 is set as a third inclined surface 621, the limiting strips 61 are rectangular strips, one end of each limiting strip 61 is used for being mounted on the first plate portion 51, and the other end of each limiting strip 61 is connected with the guide plate 62. A plurality of spacing strips 61 are arranged at intervals and are tiled on the guide plate 62.
The elastic member 70 is provided as a spring; the rotating shaft 80 is a cylindrical shaft.
Referring to fig. 7, in the flexible hinge device 1 for an arch bridge according to the present embodiment, a plurality of hinge units 10 are connected by a connecting member 20, and a plurality of main bars 11 of the plurality of hinge units 10 are arranged side by side at intervals, that is, the plurality of main bars 11 are located in the same plane and the plurality of main bars 11 are arranged in parallel. A plurality of auxiliary ribs 12 arranged at intervals are respectively welded on two surfaces of the web plate 112 of each main rib 11, the auxiliary ribs 12 are perpendicular to the web plate 112, and a plurality of auxiliary ribs 12 are respectively and perpendicularly welded on the outer surface of the wing plate 111. The limiting strips 61 are welded on the first plate part 51, the limiting strips 61 are arranged at intervals along the axis of the rotating hole, the limiting strips 61 and the first inclined surfaces 511 are located on two sides of the first plate part 51, the third inclined surfaces 621 on the guide plates 62 are arranged towards the first plate part 51, and then the guide piece 50 is arranged on the rotating shaft 80 in a penetrating mode through the rotating hole of the guide piece 50. The rotating shaft 80 with the guide piece 50 is welded on the wing plate 111, the rotating shaft 80 is located at the pouring port 114, two ends of the rotating shaft 80 are respectively welded on two opposite side walls of the pouring port 114, the rotating shaft 80 is perpendicular to the plate surface of the web plate 112, and the rotating shaft 80 separates the pouring port 114 into two through holes. After the welding is completed, the guiding element 50 is positioned in the pouring opening 114, the limiting strip 61 and the guiding plate 62 are positioned in the mounting groove 113, the third inclined surface 621 of the guiding plate 62 is arranged towards the pouring opening 114, and the third inclined surface 621 and the inner side wall of the wing plate 111 form a wedge-shaped gap 622. Meanwhile, the guide piece 50 rotates around the rotating shaft 80 relative to the main rib 11, due to the structural design of the limiting strip 61 and the guide plate 62, in the process that the guide piece 50 rotates relative to the main rib 11, the limiting strip 61 and the guide plate 62 can abut against the wing plate 111, so that the rotation of the guide piece 50 in one direction is limited, when the cover of the guide piece 50 is set to be in an initial state at the pouring port 114 (the plate surface of the guide piece 50 is parallel to the plane where the pouring port 114 is located), the first plate part 51 rotates clockwise towards the mounting groove 113, the second plate part 52 rotates anticlockwise towards the mounting groove 113, and the structural design of the limiting strip 61 and the limiting plate can limit the rotation trend of the guide piece 50 in the anticlockwise direction, that is, when the guide piece 50 rotates anticlockwise until the limiting piece 60 abuts against the inner side wall of the wing plate 111, the guide piece 50 cannot continue to rotate. In order to further limit the rotation of the guiding member 50, an elastic member 70 is disposed between the second plate portion 52 and the wing 111 without the pouring opening 114, and the elastic member 70 is in a stretching state, so that the limiting member 60 is kept in a state of abutting against the wing 111.
In the construction process, a plurality of hinge units 10 are connected through a connecting piece 20 to form an integral structure, the hinge device is obliquely arranged, one side of the hinge device is embedded in the circle of the main arch 100, the pouring opening 114 on the main rib 11 faces towards the concrete pouring side, namely faces upwards, the position of the first plate part 51 at the same pouring opening 114 is lower than that of the second plate part 52, due to the action of the elastic piece 70, the guide piece 50 covers the pouring opening 114, when concrete flows to the pouring opening 114 during concrete pouring, the guide piece 50 is driven to rotate clockwise, the pouring opening 114 is opened, the concrete conveniently enters the installation groove 113 and is conveniently combined with the reinforcing piece 30 and the auxiliary rib 12 in the installation groove 113, meanwhile, the concrete entering the installation groove 113 from the bottom firstly enters the wedge-shaped gap 622, and the clockwise rotation of the guide piece 50 can also open the pouring opening 114, the concrete is facilitated to enter the installation slot 113 from the pouring opening 114. Furthermore, a first inclined plane 511 and a second inclined plane 521 are respectively arranged on two plate surfaces of the guide piece 50, when concrete contacts the first inclined plane 511 and the second inclined plane 521, the guide piece 50 has a guiding function and can smoothly enter the installation groove 113, and in the pouring process, the concrete is firmly and reliably combined with the hinge device.
The arch bridge flexible hinge device 1 provided by the embodiment has the advantages that each part is fixed by welding, the processing and the manufacturing are simple, and at least the following advantages are achieved:
the adaptability is good: the invention can meet the requirements of sunflower-shaped arch bridges with different widths and different rise-span ratios according to requirements. The arch bridge is suitable for both the arch bridge with a large arch ring width and the arch bridge with a small arch ring width; the arch bridge is suitable for the arch bridge with a large rise-span ratio and the arch bridge with a large rise-span ratio;
the structure is simple: the structure of the invention comprises a main rib 11, a connecting piece 20, a reinforcing piece 30, an auxiliary rib 12, a sealing plate 40 and other structures which are fixed by welding;
the preparation is convenient: the main reinforcement 11 adopted by the invention is made of I-shaped steel, the auxiliary reinforcement 12 is made of steel nails, and the auxiliary reinforcement can be purchased directly according to the required model; the connecting member 20 and the reinforcing member 30 are made of steel materials, and the structure can be manufactured through simple processing;
good economical efficiency: the invention has convenient construction, improves the construction efficiency and can effectively reduce the project cost;
the application prospect is good: the invention has great significance for the construction period of the sunflower-shaped arch bridge, can ensure the construction quality of post-cast concrete of the main abdominal arch joint section, can effectively release the additional stress generated in the construction process, and avoids local cracking of the concrete in the area.
The arch bridge flexible hinge device 1 provided by the embodiment is made of steel materials through welding, the whole hinge device is of a plate-shaped structure with a plurality of through holes, the whole hinge device has certain deformation capacity in the concrete pouring process, namely, the hinge device is flexible, and additional stress generated in the construction process can be effectively released in the pouring process.
Arch bridge embodiment
The present embodiment provides an arch bridge, which comprises a main arch 100, an abdominal arch and the arch bridge flexible hinge device 1 described in the above embodiments, wherein the main arch 100 and the abdominal arch are connected by the arch bridge flexible hinge device 1.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The flexible hinge device for the arch bridge is characterized by comprising at least one hinge unit, a connecting piece and a rotating shaft, wherein the at least one hinge unit comprises a main rib, an auxiliary rib and a guiding piece, the main rib comprises two opposite mounting grooves, the auxiliary rib is arranged at the bottom of each mounting groove, one end of each auxiliary rib is connected with the main rib, and the other end of each auxiliary rib extends towards the notch of the corresponding mounting groove; the adjacent main ribs are connected through the connecting piece;
the main rib is provided with a filling port which is communicated with the mounting groove; the guide piece is positioned in the filling opening, the rotating shaft is arranged in the filling opening, the guide piece is rotatably connected to the main rib through the rotating shaft, and the guide piece can open or close the filling opening in the rotating process relative to the main rib; the guide piece is plate-shaped and comprises a first plate part and a second plate part which are positioned on two sides of a rotation axis of the guide piece and the main rib, a limiting piece is arranged on the first plate part and positioned in the mounting groove, and the limiting piece is used for limiting the first plate part to rotate around the rotation axis to the outside of the pouring opening along the direction far away from the mounting groove; an elastic piece is arranged between the second plate part and the main rib, and the elastic piece enables the limiting piece to be tightly abutted against the inner wall of the mounting groove.
2. The arch bridge flexible hinge device according to claim 1, wherein said main rib is provided as an i-steel, said main rib includes two wing plates and a web plate located between said two wing plates, said wing plates are fixedly connected to said web plate, each of said wing plates is provided with said auxiliary rib, and said auxiliary ribs are respectively provided on two plate surfaces of said web plate.
3. The arch bridge flexible hinge assembly according to claim 2, wherein each hinge unit further comprises a sealing plate, one sealing plate is mounted on each end of the main rib, and the auxiliary rib is disposed on a surface of the sealing plate away from the main rib.
4. The arch bridge flexible hinge assembly of claim 3, wherein the hinge unit further comprises a reinforcement member, the reinforcement member is located in the installation groove, and the reinforcement member is connected to the two wing plates.
5. The arch bridge flexible hinge assembly according to claim 1, wherein a plate surface of the first plate portion is provided with a first inclined surface, and the first inclined surface is located outside the mounting groove; a face of the second plate portion is set to be a second inclined face, and the second inclined face is located in the mounting groove.
6. The arch bridge flexible hinge device according to claim 1, wherein the limiting member comprises a guide plate and a plurality of limiting strips, one plate surface of the guide plate is provided with a third inclined surface, one ends of the limiting strips are mounted on the first plate portion, the other ends of the limiting strips are mounted on the guide plate, the limiting strips are arranged at intervals along the length direction of the rotation axis, and the third inclined surface is arranged towards the groove wall of the mounting groove; when the first plate portion rotates around the rotating axis in the direction far away from the mounting groove and rotates relative to the main rib, the limiting strip abuts against the groove wall of the mounting groove.
7. An arch bridge comprising a main arch, an abdominal arch and an arch bridge flexible hinge means according to any one of claims 1 to 6, the main arch and the abdominal arch being connected by an arch bridge flexible hinge means.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710616180.XA CN107237250B (en) | 2017-07-24 | 2017-07-24 | Flexible hinge device of arch bridge and arch bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710616180.XA CN107237250B (en) | 2017-07-24 | 2017-07-24 | Flexible hinge device of arch bridge and arch bridge |
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| CN107237250A CN107237250A (en) | 2017-10-10 |
| CN107237250B true CN107237250B (en) | 2022-03-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005256391A (en) * | 2004-03-11 | 2005-09-22 | Sumitomo Heavy Ind Ltd | Arch bridge |
| CN104251037A (en) * | 2013-06-29 | 2014-12-31 | 清华大学 | Steel-encased concrete-steel beam composite coupling beam and construction method thereof |
| CN104251040B (en) * | 2013-06-29 | 2017-03-29 | 清华大学 | A kind of two benches work coupling beam and its construction method |
| CN204756036U (en) * | 2015-05-22 | 2015-11-11 | 天津斯维克阀业有限公司 | A check valve |
| CN106436924A (en) * | 2016-08-22 | 2017-02-22 | 广西建工集团第五建筑工程有限责任公司 | Steel pipe concrete column variable section broken-line-shaped steel bracket and connecting construction method thereof |
| CN106628917B (en) * | 2017-02-20 | 2022-10-28 | 南京路鼎搅拌桩特种技术有限公司 | Pipeline earth moving machine with lubricating system |
| CN207091902U (en) * | 2017-07-24 | 2018-03-13 | 中交二航局南方工程有限公司 | Arch bridge flexibility hinge device and arch bridge |
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