CN212077624U - Bridge tower cable saddle of cable-stayed bridge cable - Google Patents
Bridge tower cable saddle of cable-stayed bridge cable Download PDFInfo
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- CN212077624U CN212077624U CN201921880054.6U CN201921880054U CN212077624U CN 212077624 U CN212077624 U CN 212077624U CN 201921880054 U CN201921880054 U CN 201921880054U CN 212077624 U CN212077624 U CN 212077624U
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Abstract
The utility model relates to a bridge tower cable saddle of cable-stay bridge cable, bridge tower cable saddle (3) set up on bridge tower (2) for fixed suspension cable (1) upper end, set up connecting piece (32) respectively including saddle (31), saddle (31) both ends, deflecting about connecting piece (32) and the saddle hinge joint can be realized, connecting piece (32) will be connected with the suspension cable upper end. And the connecting piece (32) is provided with a connecting hole (323), and the connecting hole (323) is in threaded connection with an anchor head at the upper end of the stay cable. According to the method, an anchoring cavity is not required to be arranged inside the bridge tower, and the size of the bridge tower is compact and intensive; the connecting piece directly connected with the end part of the stay cable is hinged with the saddle, namely the connecting piece can be adjusted according to the adaptive angle of the stress relative to the saddle, so that the stay cable can adapt to the deflection caused by construction angle deviation or external dynamic load at the bridge tower end, and the stress of the stay cable component is improved.
Description
Technical Field
The utility model relates to a cable-stay bridge structural component, concretely relates to anchor saddle component that suspension cable and bridge tower are connected.
Background
In cable-stayed bridge engineering, the connection structure of a stay cable and a bridge tower generally adopts the following structure:
1) and after the stay cable continuously passes through a cable saddle pre-embedded in the bridge tower, the two ends of the stay cable are anchored and connected with the main beams on the two sides of the bridge tower. The common structure of the cable saddle can be referred to the content of the name of 'bundled steel pipe assembly welded wire-separating pipe cable saddle for partial cable-stayed bridge' which is published under the grant publication No. CN 20095512Y. The technology ensures that the stay cable steel strand material needs to be bent and steered when passing through the bridge tower, and the steel strand has bending stress, so that the bearing capacity of the stay cable is reduced; in addition, this structure still need set up anti-skidding device and avoids producing relative slip between suspension cable steel strand wires and the cable saddle, and anti-skidding ability of anti-skidding structure has the limitation, and installs and dismantle inconveniently. During service, the wire separating pipe cable saddle is of a closed pore structure, so that daily inspection and maintenance are inconvenient.
2) The stayed cable does not pass through the bridge tower, but the lower end of the stayed cable is connected with the main girder anchor, the upper end of the stayed cable is connected with the bridge tower anchor, the upper end of the stayed cable is anchored in the bridge tower with a middle cavity, and the stayed cable of the existing stayed-cable bridge generally adopts the anchor connection structure at the bridge tower end. This design needs the bridge tower to have great inner space for there is sufficient space to be used for installing cable ground tackle and construction operation in bridge tower inside, so bridge tower construction cost is higher.
In addition, when the construction angle deviation exists in the stay cable saddle or the anchoring embedded part on the bridge tower or the external dynamic load exists, the stay cable is deflected to a certain degree, and poor bending stress exists. For a bridge tower, there are several stayed cables anchored at different angles, so the requirement for construction precision is very high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a saddle is connected in bridge tower anchor, lets the direct anchor in suspension cable upper end on the bridge tower. The structure does not need to arrange an anchoring cavity inside the bridge tower, and the size of the bridge tower is compact and intensive; and the bridge tower anchoring connection saddle is provided with a pin shaft connecting device, so that the stay cable can adapt to deflection caused by construction angle deviation or external dynamic load at the bridge tower end, the stress of a stay cable component is improved, and the service life of the stay cable is prolonged.
The utility model provides a technical scheme that above-mentioned problem adopted does: the utility model provides a bridge tower cable saddle of cable-stay bridge cable, bridge tower cable saddle sets up on the bridge tower for fixed suspension cable upper end, sets up the connecting piece respectively including saddle, saddle both ends, the connecting piece is articulated to be realized deflecting from top to bottom with the saddle, the connecting piece will be connected with the suspension cable upper end.
Specifically, the saddle comprises a plurality of pull-bearing plates which are arranged at intervals, and two adjacent pull-bearing plates are connected through a plurality of rib clapboards.
Specifically, the end part of the tension bearing plate extends outwards to form a tension bearing plate lug plate, the tension bearing plate lug plates at the same end of the tension bearing plate are opposite, and a pin hole is formed in each tension bearing plate lug plate; the connecting piece correspondingly has a connecting piece ear plate, a pin hole is formed in the connecting piece ear plate, and the connecting piece and the pull bearing plate ear plate are hinged through the matching of the pin shaft and the pin hole. And then, the connecting piece is a U-shaped fork ear component, a connecting hole capable of being connected with the stay cable is arranged at the bottom of the connecting piece, the connecting hole is in threaded connection with an anchor head at the upper end of the stay cable, and connecting pin holes are formed in lug plates of the connecting piece on two sides.
Preferably, the side surface of the tension bearing plate ear plate is provided with a reinforcing ear plate, the reinforcing ear plate is tightly attached to the tension bearing plate ear plate (312), and a pin hole of the tension bearing plate ear plate is communicated with the reinforcing ear plate tightly attached to the tension bearing plate ear plate.
Preferably, the bearing plate is arched or straight, and the connecting piece is movably connected with the saddle and can be freely adjusted to the optimal tensioning position according to the inclination of the stay cable, so that the shape of the saddle body can be selected according to the specification of the bridge tower, for example, for the case that the bridge tower is narrow, the saddle span is small, the arch or straight type can be selected, the bearing influence of the shape of the saddle on the pin shaft force is small, and when the bridge tower is wide, the saddle span is large, and the selection of the arched saddle is more appropriate.
Preferably, the lower edge or the upper edge of the tensile plate is provided with a notch or a step structure.
Preferably, the outer surface of the tension bearing plate is provided with shear nails.
Preferably, the saddle further comprises two pressure bearing base plates with inner holes, the two pressure bearing base plates are respectively sleeved at two ends of the two tension bearing plates, the end parts of the tension bearing plates penetrate through the inner holes of the pressure bearing base plates, and the lug plates of the tension bearing plates penetrate out of the pressure bearing base plates. The main body of the tension bearing plate is arranged in the bridge tower, the lug plates of the tension bearing plate at the end part are exposed out of the bridge tower, the pressure bearing base plate is arranged at the level position of the side wall of the bridge tower, and the pressure bearing base plate can improve the stress condition of the concrete of the bridge tower and reduce the shear stress.
Compared with the prior art, the utility model has the advantages of:
(1) an anchoring cavity is not required to be arranged inside the bridge tower, and a saddle is only required to be buried into the bridge tower, so that the size of the bridge tower is compact and intensive, and the construction cost of the bridge tower is reduced.
(2) The anchoring connection saddle is provided with the pin shaft connection device, so that a revolute pair can be formed, the inclined cable at the bridge tower end can adapt to the inclination and the construction angle deviation of the inclined cable, the stress of the inclined cable component is improved, and the anchorage device is always stressed along the direction of the inclined cable.
Drawings
Fig. 1 is a working condition diagram of the anchoring of the bridge tower cable saddle to the stay cable of the utility model;
FIG. 2 is a schematic view of the connection of the pylon cable saddle and the stay cable of FIG. 1;
FIG. 3 is a partial schematic view of a bridge tower cable saddle;
FIG. 4 is a schematic diagram of a saddle of a bridge tower cable saddle;
FIG. 5 is a schematic structural view of a connector;
figure 6 is a schematic structural view of another saddle;
figure 7 is a schematic structural view of another saddle;
figure 8 is a schematic structural view of another saddle;
in the figure:
a stay cable 1,
An anchor head 11 of the stay cable,
A cable-stayed bridge tower 2,
A bridge tower cable saddle 3,
A saddle 31,
A pull plate 311,
A pull-bearing plate ear plate 312,
A reinforcing lug plate 313,
A bearing plate pin hole 314,
A rib clapboard 315,
The lower edge 316 of the tensile plate,
The upper edge 317 of the tensile plate,
A pressure bearing backing plate 318,
Shear nails 3101,
A connecting piece 32,
A connecting piece ear plate 321,
A connecting piece pin hole 322,
A connecting hole 323,
A pin 33.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawing, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art
The embodiment relates to a bridge tower cable saddle of a stayed-cable bridge, wherein the bridge tower cable saddle 3 is arranged on a bridge tower 2 and used for fixing the upper end of the stayed-cable, the bridge tower cable saddle 3 comprises a saddle 31 and connecting pieces 32 arranged at the two ends of the saddle 31 respectively, and the saddle 31 and the connecting pieces 32 are movably hinged through a pin shaft 33. Saddle 31 is formed by the plate combination, including two and hold arm-tie 311 and a plurality of deep floor plate 314, two hold arm-tie 311 shape the same, relative interval sets up, each hold arm-tie 311 respectively to both ends extension formation and hold arm-tie otic placode 312, in order to improve the bearing capacity of holding arm-tie otic placode 312, still be provided with in this embodiment and strengthen the otic placode 313 outside holding arm-tie otic placode 312, strengthen the otic placode 313 and the otic placode 312 and stack together through the welding, be provided with simultaneously on holding arm-tie otic placode 312, strengthening the otic placode pinhole 314.
The connecting piece 32 is a U-shaped fork ear member (i.e. the connecting piece has two ear plates), the bottom is provided with a connecting hole 323 which can be connected with the anchor head of the stay cable, the inner wall of the connecting hole 323 is provided with an internal thread, the surface of the anchor at the end part of the stay cable is provided with an external thread, and the internal thread is matched with the external thread, so that the connecting piece 32 can be directly screwed at the end part of the stay cable. The connecting piece 32 is provided with connecting piece pin holes 322 on the connecting piece ear plates 321 on two sides, the pin shaft 33 is a short cylindrical shaft body, and one pin shaft is simultaneously installed in the pin hole in one pull-bearing plate ear plate 312, one reinforcing ear plate 313 and the pin hole of one connecting piece ear plate 321, so that the saddle 31 and the connecting piece 32 are hinged together to form the stay cable bridge tower anchoring connection saddle 3.
When in use, when the cable-stayed bridge is constructed, the saddle 31 is pre-buried or installed at the designed position of the bridge tower 2, and then the connecting piece 32 is installed and fixed at the two ends of the saddle body 31 by the pin shaft 33, thus completing the installation of the cable-stayed bridge tower anchoring connection saddle with the pin shaft connecting device; and the stay cable 1 can be installed subsequently, the anchor head 11 of the stay cable 1 is installed in the bottom connecting hole 323 of the connecting piece 32, and the stay cable 1 and the bridge tower 2 of the cable-stayed bridge are connected by screw threads, so that the anchoring connection is completed.
In this embodiment, as shown in fig. 4, the carrier plate lower edge 316 and the carrier plate upper edge 317 of the saddle 31 are curved arcs, and the entire saddle 31 is arched. This structure is particularly suitable for cases where the saddle span is large.
As an alternative to the saddle, the saddle 31 may also be straight, as shown in fig. 6. In addition, the lower edge 316 of the tension bearing plate and/or the upper edge 317 of the diagonal tension plate can be straight or have a step structure or a square groove structure, so that the stress of the saddle in the bridge tower is improved.
As a variation of the saddle, as shown in fig. 7, the saddle 31 further includes two pressure-bearing pads 318 having inner holes, the two pressure-bearing pads 318 are respectively sleeved on two ends of the two tension-bearing plates 311, the ends of the tension-bearing plates are supported on the inner holes of the pressure-bearing pads, and the tension-bearing plate lugs 312 are outwardly extended out of the pressure-bearing pads 318. The bearing backing plate 318 is just attached to the end face of the bridge tower for improving the stress of the bridge tower.
As an alternative to the saddle, as shown in fig. 8, the outer side surface of the tensile plate 311 of the saddle 31 is provided with shear pins 3101.
As a change of the saddle, the saddle 31 can also be arranged by more than two tension bearing plates at intervals in turn, and the two adjacent tension bearing plates are connected by a rib clapboard. So as to adapt to the anchoring of more than two stay cables.
Although the preferred embodiments of the present invention have been described in detail hereinabove, it should be clearly understood that modifications and variations of the present invention are possible to 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 (9)
1. The utility model provides a bridge tower cable saddle of cable-stay bridge cable, bridge tower cable saddle (3) set up on bridge tower (2) for fixed suspension cable (1) upper end, its characterized in that: set up connecting piece (32) respectively including saddle (31), saddle (31) both ends, connecting piece (32) are articulated with the saddle and can realize deflecting from top to bottom, connecting piece (32) are connected with the suspension cable upper end.
2. A pylon cable saddle for a cable-stayed bridge cable according to claim 1, wherein: the saddle (31) comprises a plurality of pull-bearing plates (311) which are arranged at intervals, and two adjacent pull-bearing plates (311) are connected through a plurality of rib clapboards (315).
3. A pylon cable saddle for a cable-stayed bridge cable according to claim 2, wherein: a pull-bearing plate lug plate (312) extends outwards from the end part of the pull-bearing plate (311), the pull-bearing plate lug plates (312) at the same end of the pull-bearing plate are opposite, and pull-bearing plate pin holes (314) are formed in the pull-bearing plate lug plates (312); the connecting piece (32) is correspondingly provided with a connecting piece ear plate (321), a connecting piece pin hole (322) is formed in the connecting piece ear plate (321), and the connecting piece (32) is hinged with the tension plate ear plate (312) through the matching of the pin shaft (33) and the pin hole.
4. A pylon cable saddle for a cable-stayed bridge cable according to claim 3, wherein: the connecting piece is a U-shaped fork ear component, a connecting hole (323) which can be connected with the stay cable is arranged at the bottom of the connecting piece, the connecting hole (323) is in threaded connection with an anchor head at the upper end of the stay cable, and connecting piece pin holes (322) are arranged on connecting piece ear plates (321) at two sides.
5. A pylon cable saddle for a cable-stayed bridge cable according to claim 3, wherein: and a reinforcing lug plate (313) is arranged on the side surface of each tension bearing plate lug plate (312), the reinforcing lug plates (313) are tightly attached to the tension bearing plate lug plates (312), and pin holes of the tension bearing plate lug plates (312) penetrate through the reinforcing lug plates (313) tightly attached to the tension bearing plate lug plates.
6. A pylon cable saddle for a cable-stayed bridge cable according to claim 2, wherein: the bearing plate (311) is arched or flat.
7. A pylon cable saddle for a cable-stayed bridge cable according to claim 2, wherein: the lower edge or the upper edge of the tensile plate (311) is provided with a notch and a step structure.
8. A pylon cable saddle for a cable-stayed bridge cable according to claim 2, wherein: the outer surface of the tension bearing plate (311) is provided with a shear nail (3101).
9. A pylon cable saddle for a cable-stayed bridge cable according to claim 2, wherein: the saddle (31) further comprises two pressure-bearing backing plates (318) with inner holes, the two pressure-bearing backing plates (318) are respectively sleeved at the two ends of the tension bearing plate (311), the end parts of the tension bearing plate penetrate through the inner holes of the pressure-bearing backing plates, and the tension bearing plate ear plates (312) penetrate out of the pressure-bearing backing plates (318).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921880054.6U CN212077624U (en) | 2019-11-04 | 2019-11-04 | Bridge tower cable saddle of cable-stayed bridge cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921880054.6U CN212077624U (en) | 2019-11-04 | 2019-11-04 | Bridge tower cable saddle of cable-stayed bridge cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212077624U true CN212077624U (en) | 2020-12-04 |
Family
ID=73555629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921880054.6U Active CN212077624U (en) | 2019-11-04 | 2019-11-04 | Bridge tower cable saddle of cable-stayed bridge cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212077624U (en) |
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2019
- 2019-11-04 CN CN201921880054.6U patent/CN212077624U/en active Active
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