CN211571354U - Structure for improving transverse rigidity of bridge girder and bridge thereof - Google Patents
Structure for improving transverse rigidity of bridge girder and bridge thereof Download PDFInfo
- Publication number
- CN211571354U CN211571354U CN201922267882.9U CN201922267882U CN211571354U CN 211571354 U CN211571354 U CN 211571354U CN 201922267882 U CN201922267882 U CN 201922267882U CN 211571354 U CN211571354 U CN 211571354U
- Authority
- CN
- China
- Prior art keywords
- bridge
- horizontal
- girder
- cable
- transverse rigidity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a structure for improving the transverse rigidity of a bridge girder, which comprises horizontal inhaul cables arranged on two sides of the bridge girder in parallel along the longitudinal bridge direction and a support rod for connecting the horizontal inhaul cables with the bridge girder, wherein the horizontal inhaul cables form transverse limiting connection of a plurality of nodes with the bridge girder through the support rod; under the condition that the width of the bridge deck and the material consumption of the main beam are not required to be increased, the transverse rigidity of the main beam of the bridge is increased, the transverse deformation and the amplitude are reduced, and the bridge is reasonable in structure, high in material utilization rate and convenient and fast to construct. The utility model discloses an increase bridge transverse rigidity's structure can be applied to various bridges such as girder bridge, arch bridge, cable-stay bridge, suspension bridge, is particularly useful for the very little foot bridge of girder width and span ratio, track bridge and super large span bridge, is guaranteeing under the prerequisite that bridge construction satisfies the transverse rigidity requirement, can reduce engineering volume, reduce cost.
Description
Technical Field
The utility model relates to a bridge engineering field, concretely relates to improve structure and bridge of bridge girder transverse rigidity.
Background
The rigidity control of the bridge is an important index for bridge design. The main beam of the bridge structure has enough rigidity in the transverse bridge direction besides ensuring the necessary vertical rigidity, if the transverse rigidity of the main beam is too small, the main beam can generate larger transverse deformation and amplitude under the action of external load, discomfort and unsafe feeling of drivers, passengers or pedestrians on the bridge are caused, the normal use is influenced, and therefore the transverse rigidity of the main beam must be controlled. The indexes for evaluating the transverse rigidity of the girder mainly comprise the width to span ratio of the girder, the transverse bending span ratio, the transverse natural vibration frequency, the transverse break angle of the girder end and the like. To ensure that the main beams have sufficient lateral stiffness, it is common practice to control the ratio of the width to the span of the main beams within a certain range. The pedestrian bridge, the railway bridge and the track bridge have the characteristic of narrow bridge deck, the bridge deck width of the super-large span bridge is also determined according to the actual traffic function requirement, if the transverse rigidity of the girder is ensured by singly adopting a method of increasing the width-span ratio of the girder, the dead weight is increased, the structural efficiency is reduced, the material waste is caused, and the economic benefit is reduced.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an improve structure of bridge girder transverse rigidity under the condition that need not increase bridge floor width and girder material quantity, increases bridge girder transverse rigidity, reduces transverse deformation and amplitude, and rational in infrastructure, material utilization rate is high, construction convenience is swift.
The utility model discloses a structure for improving the transverse rigidity of a bridge girder, which comprises horizontal inhaul cables arranged on the two horizontal sides of the bridge girder in parallel along the longitudinal bridge direction and a support rod for connecting the horizontal inhaul cables with the girder, wherein the horizontal inhaul cables form transverse limiting connection of a plurality of nodes with the bridge girder through the support rod;
furthermore, one end of the support rod is fixedly connected with the main beam of the bridge, and the other end of the support rod is movably connected with the horizontal stay cable;
furthermore, the horizontal inhaul cable is movably connected with the supporting rod in a mode of moving along the longitudinal bridge direction;
furthermore, the support rod is provided with a ring piece in sliding connection with the horizontal inhaul cable, and the ring piece is sleeved on the horizontal inhaul cable;
further, a sliding sleeve is arranged between the annular piece and the horizontal inhaul cable;
further, the sliding sleeve comprises an inner sliding sleeve fixedly arranged on the inner side wall of the annular piece and an outer sliding sleeve fixedly arranged on the surface of the horizontal inhaul cable and corresponding to the inner sliding sleeve, and the inner sliding sleeve and the outer sliding sleeve can slide relatively along the longitudinal bridge direction;
furthermore, the supporting rods form a plurality of triangular supporting structures between the horizontal inhaul cable and the main beam of the bridge in the horizontal direction and the vertical direction, and the triangular supporting structures are connected in pairs in the horizontal direction;
furthermore, the triangular support structure consists of a side support rod I, a middle support rod II and a side support rod III which are connected with the same ring-shaped piece on the horizontal plane, and the connection point of the middle support rod II and the bridge girder and the connection points of the side support rod I and the side support rod III and the bridge girder are not on the same horizontal line;
furthermore, the horizontal stay cable is a flexible stay cable, and the annular parts are connected and fixed by adopting a screw and a nut.
The utility model discloses still disclose a bridge, the bridge is established and is had the structure that improves bridge girder transverse rigidity.
The utility model has the advantages that: the utility model discloses an improve structure of bridge girder transverse rigidity under the condition that need not increase bridge floor width and girder material quantity, increases bridge girder transverse rigidity, reduces transverse deformation and amplitude, and rational in infrastructure, material utilization rate is high, construction convenience is swift. The utility model discloses an increase device of bridge transverse rigidity can be applied to various bridges such as girder bridge, arch bridge, cable-stay bridge, suspension bridge, is particularly useful for the very little foot bridge of girder width and span ratio, track bridge and super large span bridge, is guaranteeing under the prerequisite that the bridge construction satisfies the transverse rigidity requirement, can reduce engineering volume, reduce cost.
Drawings
The invention will be further described with reference to the following figures and examples:
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic view of the lateral structure of the present invention;
fig. 3 is an enlarged schematic view of a portion a of fig. 1.
Detailed Description
FIG. 1 is a schematic plan view of the present invention; FIG. 2 is a schematic view of the lateral structure of the present invention; fig. 3 is an enlarged schematic view of a portion a of fig. 1. As shown in the figure: the structure for improving the transverse rigidity of the bridge girder comprises horizontal inhaul cables 2 arranged on two horizontal sides of the bridge girder 1 in parallel along the longitudinal bridge direction and a support rod 3 for connecting the horizontal inhaul cables 2 with the bridge girder 1, wherein the horizontal inhaul cables 2 form transverse limiting connection of a plurality of nodes with the bridge girder 1 through the support rod 3; horizontal cable 2 and girder pass through a plurality of bracing piece 3 and connect horizontal cable 2 and bridge girder 1 along the horizontal bridge to forming the horizontal spacing connection of a plurality of nodes, provide transverse stability power and restraint effect for the girder through the horizontal cable 2 and the bracing piece 3 that are tense after being stretched to reduce transverse deformation and amplitude, restrict the transverse deformation of bridge girder 1, increase bridge girder 1 with this horizontal bridge to bending stiffness, restrict deformation and vibration that horizontal cable 2 produced simultaneously again. The horizontal inhaul cables 2 are straight lines, are parallel to two sides of the bridge girder 1, and are equal in distance with the edge of the bridge girder 1. The horizontal cables 2 on the two sides of the bridge girder 1 may have the same diameter and the same tension, or may have different diameters and different tensions, for example, when the bridge is linear and symmetrical, the horizontal cables 2 on the two sides of the bridge girder 1 have the same diameter and the same tension, otherwise, the horizontal cables 2 may have different diameters and different tensions according to actual conditions. The horizontal guy cable 2 is anchored on the foundation bases (such as the enlarged foundation and arch base of arch foot of arch bridge) at two ends of the bridge or other anchoring points, as long as the horizontal guy cable 2 is fixed and parallel to the horizontal two sides of the bridge girder 1.
In the embodiment, one end of the support rod 3 is fixedly connected with the bridge girder 1, and the other end is movably connected with the horizontal inhaul cable 2; the movable connection of the support rod 3 and the horizontal cable 2 means that the support rod 3 and the horizontal cable 2 can move relative to each other after being connected, and is a movable connection relative to a fixed connection, and is a 'movement' under a connection relation, when the bridge generates larger transverse deformation and amplitude under the action of external load to cause transverse displacement, the tightened horizontal cable 2 provides resilience opposite to the displacement direction of the main beam through the support rod 3 to limit the transverse deformation of the main beam. The movable connection can avoid abrasion or damage between the support rod 3 and the horizontal inhaul cable 2 caused by stress concentration. And the support rods 3 and the bridge girder 1 must be fixedly connected, so that the bridge girder has enough structural rigidity. The support rods 3 can be fixed with the bridge girder 1 by adopting the existing fixing mode, such as welding and the like. The horizontal cable 2 and the support rod 3 can be fixedly connected, but the mode may cause stress concentration and abrasion.
In this embodiment, the horizontal cable 2 is movably connected with the support rod 3 in a manner of moving along the longitudinal bridge direction; that is to say, since the support rod 3 is fixedly connected to the main bridge beam 1, the position of the support rod 3 is fixed, and therefore, the horizontal cable 2 can move along the longitudinal direction of the bridge when the horizontal cable 2 and the support rod 3 are connected, and therefore, when the main bridge beam 1 is loaded, the support rod 3 fixed to the bridge and the horizontal cable 2 are displaced from each other when the main bridge beam 1 is deformed transversely.
In this embodiment, the support rod 3 is provided with a ring-shaped member 4 slidably connected with the horizontal cable 2, and the ring-shaped member 4 is sleeved on the horizontal cable 2; the ring-shaped members 4 are distributed at equal intervals along the horizontal cable 2, the ring-shaped members 4 can be detachably connected with the horizontal cable 2, for example, by bolts, and the ring-shaped members 4 can also be fixed on the horizontal cable 2. Adopt 4 simple structures of loop forming element, also be convenient for bracing piece 3 and horizontal cable 2 to produce relative displacement.
In this embodiment, a sliding sleeve is arranged between the ring-shaped member 4 and the horizontal stay cable 2; the setting of sliding sleeve is convenient for annular member 4 and horizontal cable 2 to produce relative displacement under the atress condition, and in order to adapt to the structure of annular member 4, the inner sliding sleeve generally is the arc and suits with the inner wall of annular member 4.
In this embodiment, the sliding sleeve includes an inner sliding sleeve 41 fixedly disposed on the inner side wall of the ring-shaped member 4 and an outer sliding sleeve 21 fixedly disposed on the surface of the horizontal cable 2 and corresponding to the inner sliding sleeve 41, and the inner sliding sleeve 41 and the outer sliding sleeve 21 can relatively slide along the longitudinal bridge direction; the inner sliding sleeve 41 is fixed on the inner side wall of the ring-shaped piece 4, the outer sliding sleeve 21 is fixed on the horizontal inhaul cable 2, and therefore the transmission of force between the inner sliding sleeve and the bridge girder 1 is facilitated, the reaction force is generated under the condition that the bridge girder 1 bears load acting force, the transverse deformation and the amplitude of the bridge girder 1 are reduced, the friction resistance between the ring-shaped piece 4 and the horizontal inhaul cable 2 is reduced, and the abrasion between the ring-shaped piece 4 and the horizontal inhaul cable 2 can be. The outer diameter of the horizontal cable 2 is slightly smaller than the inner diameter of the annular piece 4, and the outer sliding sleeve 21 is arranged in the range where the horizontal cable 2 is in contact with the inner sliding sleeve 41 of the annular piece 4.
In the embodiment, the support rods 3 form a plurality of triangular support structures between the horizontal stay cable 2 and the bridge girder 1 in the horizontal direction and the vertical direction, and the triangular support structures are connected in pairs in the horizontal direction; that is to say that what the connected node between bracing piece 3 and the horizontal cable 2 formed is stable triangular structure, has a plurality of because of the triangular structure that bracing piece 3 interconnect formed promptly in the horizontal plane direction of bridge girder 1, and forms triangular structure equally between bracing piece 3 that vertical direction and bridge girder 1 and horizontal cable 2 are connected, such structure is more stable, can be better provide lateral stability power and constraint effect for bridge girder 1.
In the embodiment, the triangular support structure consists of a side support rod I31, a middle support rod II 33 and a side support rod III 32 which are connected with the same ring-shaped piece 4 on the horizontal plane, and the connection point of the middle support rod II 33 and the bridge girder 1 and the connection points of the side support rod I31 and the side support rod III 32 and the bridge girder 1 are not on the same horizontal line; as shown in the figure, for the ring-shaped member 4 at a, the side support rods i 31, the middle support rod ii 33, and the side support rod iii 32 are connected to the triangular support structure formed by the ring-shaped member 4 together, the side support rods i 31 and the side support rods iii 32 are respectively used as the side lengths of the triangle, the connection points of the side support rods i 31 and the side support rods iii 32 and the bridge girder 1 are located on the same horizontal line, the connection point of the middle support rod 3 ii and the bridge girder 1 and the connection points of the side support rods i 31 and the side support rods iii 32 and the bridge girder 1 are not located on the same horizontal line, and the side support rods i 31 and the side support rods iii 32 are connected to the support rods 3 of the adjacent triangular support structure, which are used as the side lengths, so that the side support rods i 31 and the side support rods iii 32 and the middle. And each ring-shaped part 4 is connected with three supporting rods 3, and the supporting rods 3 of the adjacent ring-shaped parts 4 are connected with each other, so that the structure is more stable.
In this embodiment, the horizontal cable 2 is a flexible cable, and the support rod is rigid; the ring-shaped piece 4 is fixedly connected by adopting a screw and a nut.
The device for increasing the transverse rigidity of the girder of the bridge structure can be applied to various bridges such as girder bridges, arch bridges, cable-stayed bridges, suspension bridges and the like, is particularly suitable for pedestrian bridges, track bridges and super-span bridges with small girder width and span ratio, and can reduce the engineering amount and reduce the cost on the premise of ensuring that the bridge structure meets the requirement of the transverse rigidity
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (10)
1. The utility model provides an improve bridge girder transverse rigidity's structure which characterized in that: the horizontal inhaul cable is arranged on two sides of the bridge girder in parallel along the longitudinal direction of the bridge, and the supporting rods are used for connecting the horizontal inhaul cable with the bridge girder, and the horizontal inhaul cable is connected with the bridge girder through the transverse limit of a plurality of nodes formed by the supporting rods.
2. The structure for improving the transverse rigidity of the main beam of the bridge according to claim 1, wherein: one end of the support rod is fixedly connected with the main beam of the bridge, and the other end of the support rod is movably connected with the horizontal stay cable.
3. The structure for improving the transverse rigidity of the main beam of the bridge according to claim 2, wherein: the horizontal guy cable can be movably connected with the support rod in a mode of moving along the longitudinal bridge direction.
4. The structure for improving the transverse rigidity of the main beam of the bridge according to claim 3, wherein: the bracing piece is provided with the loop forming element with horizontal cable sliding connection, the loop forming element cup joints in horizontal cable.
5. The structure for improving the transverse rigidity of the main beam of the bridge according to claim 4, wherein: and a sliding sleeve is arranged between the annular piece and the horizontal inhaul cable.
6. The structure for improving the transverse rigidity of the main beam of the bridge according to claim 5, wherein: the sliding sleeve includes that fixed setting is in the inner sliding sleeve of loop forming element inside wall and fixed setting in the outer sliding sleeve corresponding with inner sliding sleeve on horizontal cable surface, inner sliding sleeve and outer sliding sleeve can be followed and indulged bridge to relative slip.
7. The structure for improving the transverse rigidity of the main beam of the bridge according to claim 6, wherein: the supporting rods form a plurality of triangular supporting structures between the horizontal stay cable and the bridge girder in the horizontal direction and the vertical direction, and the triangular supporting structures are connected in pairs in the horizontal direction.
8. The structure for improving the transverse rigidity of the main beam of the bridge according to claim 7, wherein: the triangular supporting structure is composed of a side supporting rod I, a middle supporting rod II and a side supporting rod III which are connected with the same ring-shaped piece on the horizontal plane, and the connecting point of the middle supporting rod II and the bridge girder and the connecting points of the side supporting rod I and the side supporting rod III and the bridge girder are not on the same horizontal line.
9. The structure for improving the transverse rigidity of a bridge girder according to claim 8, wherein: the horizontal inhaul cable is a flexible inhaul cable; the annular piece is connected and fixed by a screw and a nut.
10. A bridge, characterized in that: the bridge having a construction according to any one of claims 1 to 9 for increasing the transverse stiffness of the girder of the bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922267882.9U CN211571354U (en) | 2019-12-17 | 2019-12-17 | Structure for improving transverse rigidity of bridge girder and bridge thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922267882.9U CN211571354U (en) | 2019-12-17 | 2019-12-17 | Structure for improving transverse rigidity of bridge girder and bridge thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211571354U true CN211571354U (en) | 2020-09-25 |
Family
ID=72548307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922267882.9U Active CN211571354U (en) | 2019-12-17 | 2019-12-17 | Structure for improving transverse rigidity of bridge girder and bridge thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211571354U (en) |
-
2019
- 2019-12-17 CN CN201922267882.9U patent/CN211571354U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110878515A (en) | Through-type arch bridge for increasing transverse rigidity of main beam and reducing horizontal thrust of foundation | |
| CN102713071A (en) | Method for constructing a suspension bridge using temporary cables under tensionless stay cable conditions, and temporary cable for same | |
| CN102808373B (en) | Rapid assembly type truss string pedestrian steel bridge | |
| CN101380954A (en) | Suspension train traffic system with hanging rail | |
| CN101793010A (en) | Arch-included integral pushing method for large-tonnage multi-span combined arch bridge | |
| CN106958189B (en) | A kind of cable-stayed type suspension bridge structure suitable for Ultra-Long Spans | |
| CN208917704U (en) | Curve lightweight I-beam beam bridge hauling construction cantilever end control device | |
| CN106884371B (en) | A kind of non-uniform beam and suspension cable combined bridge structural system | |
| CN211571354U (en) | Structure for improving transverse rigidity of bridge girder and bridge thereof | |
| CN206721646U (en) | A kind of cable-stayed type suspension bridge structure suitable for Ultra-Long Spans | |
| CN211571358U (en) | Through tied arch bridge for increasing transverse rigidity of main beam | |
| CN113481818A (en) | Through-type arch bridge suitable for ultra-high speed railway | |
| CN104847016A (en) | Suspending transfer layer of stayed cable beam | |
| CN212052268U (en) | Arch bridge | |
| CN110886182A (en) | Device for increasing transverse rigidity of bridge and bridge thereof | |
| CN103147405A (en) | Method for erecting steel girder of cable-stayed bridge with diagonal main trusses | |
| CN203411888U (en) | Multi-gang and multi-span continuous steel truss bridge | |
| CN108505428B (en) | Large-included-angle small-radius multi-tower curve cable-stayed bridge | |
| CN211815595U (en) | Lower tower column tension and compression structure for cable tower | |
| CN211571359U (en) | Through-type arch bridge for increasing transverse rigidity of main beam and reducing horizontal thrust of foundation | |
| CN110878516B (en) | Lower-bearing type tied-arch bridge for increasing transverse rigidity of main girder | |
| CN108755378B (en) | Bridge structure with unequal spans and two spans | |
| JP6082932B1 (en) | Bridge reinforcement structure and method | |
| CN109024267B (en) | Steel truss girder structure of curved bridge floor | |
| JP6467282B2 (en) | Girder deflection reduction device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |