CN214362789U - Bridge steel case roof beam and cable tower connection structure - Google Patents
Bridge steel case roof beam and cable tower connection structure Download PDFInfo
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- CN214362789U CN214362789U CN202023139342.1U CN202023139342U CN214362789U CN 214362789 U CN214362789 U CN 214362789U CN 202023139342 U CN202023139342 U CN 202023139342U CN 214362789 U CN214362789 U CN 214362789U
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Abstract
The utility model discloses a bridge steel case roof beam and cable tower connection structure, including the bridge transitional coupling structure that cable tower and steel case roof beam are constituteed, the steel case roof beam decomposes into two parts of well roof beam and boundary beam, well roof beam and boundary beam pass through the bolt welding and connect, its characterized in that, well roof beam and boundary beam are being close to cable tower zone separation, arrange around the tower, set up the level outside the cable tower and prop, and the level props highly and highly unanimous around tower boundary beam. The utility model discloses effectively solved the problem of cable-stay bridge upper surface lane subregion difficulty, the cable tower outside sets up the level simultaneously and props, handles through the structure around the tower boundary beam and supports on the level props, solves the structure conflict problem of propping around tower boundary beam and level.
Description
Technical Field
The utility model relates to a bridge steel case roof beam and cable tower connection structure relates to bridge engineering technical field.
Background
At present, with the rapid development of bridge engineering in China, the construction technology is continuously mature, the requirements of construction standards are higher and higher, and the construction cost is continuously increased, a cable-stayed bridge is a bridge with a main beam directly pulled on a bridge tower by a plurality of guys, and is a structural system formed by combining a cable tower bearing pressure, a guy cable bearing tension and a beam body bearing bending moment. It can be regarded as the multi-span elastic support continuous beam that the guy cable replaces the buttress; it can reduce the bending moment in the beam body, reduce the building height, lighten the structural weight and save materials. In the prior art, the problem of difficulty in partitioning a bridge deck in municipal bridge engineering exists, and the problem of potential safety hazard exists because the distribution distance between a motor vehicle lane and a non-motor vehicle lane is unreasonable after a general bridge deck structure is partitioned; the cable tower is arranged on the outermost side of the steel box girder, so that the occupied area is large, and the construction difficulty is increased; simultaneously, among the prior art boundary beam cable winding tower set up and need lay the horizontal brace, and the horizontal brace setting can break the boundary beam structure completely, and this kind of structural design boundary beam bearing capacity is poor, need add the expansion joint between boundary beam and horizontal brace, increases the maintenance work of later stage to the bridge.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide a bridge steel box girder and cable tower connection structure, be different from the application of cable-stayed bridge structure that conventional steel box girder and cable tower formed in engineering practice, decompose into well roof beam and boundary beam when the steel box girder is made, well roof beam and boundary beam pass through the bolt welding and are connected, separate with well roof beam in tower district boundary beam, arrange around the tower, set up the level and propped outside the cable tower, solved simultaneously around the structure conflict problem of tower boundary beam and level support.
The utility model adopts the technical scheme as follows:
the utility model discloses a bridge steel case roof beam and cable tower connection structure, including the bridge transitional coupling structure that cable tower and steel case roof beam are constituteed, the steel case roof beam decomposes into two parts of well roof beam and boundary beam, well roof beam and boundary beam pass through the bolt welding and connect, its characterized in that, well roof beam and boundary beam are being close to cable tower zone separation, arrange around the tower, set up the level outside the cable tower and prop, and the level props highly and highly unanimous around tower boundary beam.
Furthermore, the angles of the bottom plates of the middle beam and the edge beam at the connecting positions of the separation points arranged around the tower are the same, and the edge beam at the position around the tower comprises a top plate around the tower edge beam, a web plate around the tower edge beam and a bottom plate around the tower edge beam, and is supported on the horizontal support.
And furthermore, the top plate of the tower edge beam is transversely and continuously arranged around the bridge deck, the web plate of the tower edge beam and the bottom plate of the tower edge beam are disconnected at the horizontal support, and the outer edge of the horizontal support and the horizontal support are connected to form a continuous integral section structure at the upper part of the edge beam by the web plate of the tower edge beam and the bottom plate of the tower edge beam.
Furthermore, the horizontal support two sides are provided with brackets, the middle beam is provided with a vertical support connecting frame on the end transverse partition plates on the horizontal support two sides, and the middle beam is supported on the brackets on the two sides of the horizontal support through a first support.
Further, set up vice tetrafluoro board of friction and the vice corrosion resistant plate of friction around between tower boundary beam roof below and the horizontal brace roof, the vice corrosion resistant plate setting of friction is closely laminated in the vice tetrafluoro board top of friction, and cable tower horizontal brace top surface forms trapezium structure.
Furthermore, the cable tower is arranged close to the central line of the main beam, the main beam forms vertical support through a second support arranged below, and transverse support is formed through a third support arranged between the inner end edge of the main beam and the cable tower.
Furthermore, the boundary beam is arranged at the outer end of the main beam and forms an inverted trapezoidal balance structure with the main beam, and the second support is arranged at the joint of the lower part of the main beam and the boundary beam.
Furthermore, the main beams are symmetrically arranged with respect to the center line of the main beam, the upper surfaces of the main beams extend obliquely downward at an angle of 1.5-2% from the center line of the main beam to the flanges at both sides, and the top of the stay cable stayed cable tower is arranged at the outer end edge of the side beam.
The technical effects of the utility model are as follows:
the utility model provides a bridge steel case roof beam and cable tower connection structure has effectively solved the problem of cable-stay bridge upper surface lane subregion difficulty, and the cable tower outside sets up the level simultaneously and props, handles through the structure around the tower boundary beam and supports on the level props, and the level props and props high design such as tower boundary beam adoption, solves the structure conflict problem of propping around tower boundary beam and level, has compromise the effect that level propped structural design and boundary beam bridge floor continuous formation effective holding surface.
The method comprises the following specific steps:
1. the main beam is divided into a middle beam and a side beam which are respectively used as a motor vehicle lane and a non-motor vehicle lane, and the machine-non isolation is automatically realized in a tower area;
2. the cable tower can be arranged close to the central line of the main beam without being arranged on the outermost side of the steel box girder, so that the occupied area is reduced;
3. the tower-winding boundary beam is interrupted by the cable tower horizontal support without complete interruption, the bearing load of the boundary beam is enhanced while the structure continuity of the top plate is kept, an expansion joint is prevented from being arranged between the tower-winding boundary beam and the horizontal support, and the later bridge maintenance work is avoided;
4. the supporting points of the tower-winding boundary beam and the horizontal support are arranged in the middle of the tower-winding boundary beam, the structure is hidden, and the landscape effect is good.
5. The cable tower horizontal support is in a trapezoidal structure, and a better connecting effect is achieved by matching with a tower boundary beam structure.
Drawings
FIG. 1 is a schematic cross-sectional view of a bridge;
FIG. 2 is a cross-sectional view B-B of the bridge;
FIG. 3 is a cross-sectional view of the main beam;
FIG. 4 is a plan view of a bridge;
FIG. 5 is a cross-sectional view taken along plane B-B of the bridge;
FIG. 6 is a horizontal cable tower support elevation;
fig. 7 is a large view of the horizontal strut a of the cable tower.
The labels in the figure are: 1-boundary beam, 2-middle beam, 3-first support, 4-second support, 5-third support, 6-friction pair tetrafluoro plate, 7-friction pair stainless steel plate, 8-horizontal support, 9-stay cable, 10-cable tower, 11-bracket, 12-tower-winding boundary beam top plate, 13-tower-winding boundary beam web plate, 14-tower-winding boundary beam bottom plate, 15-vertical support connecting frame and 16-end diaphragm plate.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
In this embodiment, the adopted data is a preferred scheme, but is not used to limit the present invention;
in this embodiment, a left-right two-span box girder structure is adopted, and the distance between the center line of the bridge and the center lines of piers on both sides is 660 mm.
As shown in fig. 1-7, the present embodiment provides a bridge steel box girder and cable tower connecting structure, including a bridge transition connecting structure composed of a cable tower and a steel box girder, the steel box girder is divided into a middle girder and an edge girder, the middle girder and the edge girder are connected by means of bolt welding, the middle girder and the edge girder are separated in a region close to the cable tower, and are arranged around the tower, a horizontal support is arranged outside the cable tower, the height of the horizontal support is consistent with the height of the edge girder around the tower, and a supporting effect of the horizontal support on the edge girder around the tower is formed.
In the embodiment, the main beam is divided into the middle beam and the side beam, the middle beam and the side beam are arranged around the cable tower close to the central line of the main beam, the middle beam and the side beam are distributed on two sides of the cable tower and respectively used as a motorway and a non-motorway of the bridge, and the automatic isolation of the motorway and the non-motorway can be realized in the middle functional area of the cable tower.
In this embodiment, the side beam end is provided with a diaphragm plate and a middle beam bolt, and the side beam top plate, the side beam bottom plate and the middle beam are welded.
In the embodiment, the angles of the bottom plates of the middle beam and the side beams at the connecting parts of the separation points arranged around the tower are the same, so that the appearance of the bridge is ensured to be consistent; the tower-surrounding boundary beam comprises a tower-surrounding boundary beam top plate, a tower-surrounding boundary beam web plate and a tower-surrounding boundary beam bottom plate, and the tower-surrounding boundary beam is supported on the horizontal support.
As shown in fig. 6, in this embodiment, the tower-surrounding boundary beam is arranged around the outer ring of the tower, the tower-surrounding boundary beam top plate is continuously arranged around the cable tower, and the tower-surrounding boundary beam web and the tower-surrounding boundary beam bottom plate are disconnected at the horizontal support to form an integral cross-section structure, so that the problem of structural conflict between the tower-surrounding boundary beam and the horizontal support is solved, meanwhile, the tower-surrounding boundary beam is partially interrupted by the cable tower horizontal support, but the tower-surrounding boundary beam top plate is continuously arranged around the tower, so that an expansion joint is prevented from being arranged between the tower-surrounding boundary beam and the horizontal support; the horizontal support two sides are provided with brackets, the middle beam is provided with a vertical support connecting frame on the end transverse partition plate of the horizontal support two sides, and the brackets on the two sides are supported on the horizontal support through a first support.
Further, the supporting points around the tower boundary beam and the horizontal support are arranged in the middle of the tower boundary beam, the structure is hidden, the supporting points around the tower boundary beam are arranged, the boundary beam can be integrally hidden in the bridge structure, and the appearance of the bridge is optimized.
In this embodiment, as shown in fig. 7, a friction pair tetrafluoro plate and a friction pair stainless steel plate are arranged between the lower part of the top plate of the tower-surrounding edge beam and the horizontal support top plate, the friction pair stainless steel plate is arranged above the friction pair tetrafluoro plate and tightly attached to the friction pair tetrafluoro plate, and the top surface of the horizontal support of the cable tower forms a trapezoidal structure; preferably, a 3mm thick friction pair stainless steel plate and a 7mm thick friction pair tetrafluoro plate are used.
In the embodiment, the cable tower is arranged close to the central line of the main beam, the cable tower is positioned in the middle of the functional area, so that the automatic separation of the motor vehicle lane and the non-motor vehicle lane is realized, the cable tower does not need to be arranged on the outermost side of the steel box girder, and the occupied area is reduced; the main beam forms vertical support through the second support that the below set up, forms horizontal support through the third support that sets up between main beam inner end edge and the cable tower.
In this embodiment, the boundary beam is arranged at the outer end of the main beam to form an inverted trapezoidal balance structure with the main beam, and the second support is arranged at the joint of the lower part of the main beam and the boundary beam.
In the embodiment, the main beams are symmetrically arranged with respect to the center line of the main beam, and the upper surfaces of the main beams extend obliquely downward at an angle of 1.5-2% from the center line of the main beam to the flanges at the two sides, preferably, at an inclination angle of 2%; the top of the cable tower is connected with the two edges of the bridge through stay cables to form a counter-pulling triangular structure.
The above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. The utility model provides a bridge steel case roof beam and cable tower connection structure, includes the bridge transitional coupling structure that cable tower (10) and steel case roof beam are constituteed, and the steel case roof beam decomposes into two parts of well roof beam (2) and boundary beam (1), well roof beam (2) and boundary beam (1) are connected through the bolt welding, its characterized in that, well roof beam (2) and boundary beam (1) are being close to cable tower (10) regional separation, arrange around the tower, and the cable tower (10) outside sets up level and props (8), and level props (8) highly with highly unanimous around tower boundary beam (1).
2. The bridge steel box girder and cable tower connecting structure according to claim 1, wherein the angles of the bottom plates of the middle girder (2) and the side girder (1) at the connecting positions of the separation points arranged around the tower are the same, and the side girder (1) at the tower winding position comprises a tower winding side girder top plate (12), a tower winding side girder web plate (13) and a tower winding side girder bottom plate (14) which are supported on the horizontal support (8).
3. The bridge steel box girder and cable tower connection structure according to claim 2, wherein the tower-surrounding side girder top plate (12) is continuously arranged around the tower along the bridge deck, the tower-surrounding side girder web (13) and the tower-surrounding side girder bottom plate (14) are disconnected at the horizontal strut (8), and the tower-surrounding side girder web (13) and the tower-surrounding side girder bottom plate (14) are connected with the outer edge of the horizontal strut (8) and the horizontal strut (8) to form an integral cross-section structure which is continuous at the upper part of the side girder (1).
4. The connecting structure of the bridge steel box girder and the cable tower of claim 3 is characterized in that brackets (11) are arranged on two sides of the horizontal support (8), and the middle girder (2) is provided with vertical support connecting frames (15) on end cross plates (16) on two sides of the horizontal support (8) and is supported on the brackets (11) on two sides of the horizontal support (8) through the first support (3).
5. The bridge steel box girder and cable tower connecting structure according to claim 2 or 3, wherein a friction pair tetrafluoro plate (6) and a friction pair stainless steel plate (7) are arranged between the lower part of a tower edge beam top plate (12) and the top plate of a horizontal strut (8), the friction pair stainless steel plate (7) is arranged above the friction pair tetrafluoro plate (6) to be tightly attached, and the top surface of the cable tower horizontal strut (8) forms a trapezoidal structure.
6. The bridge steel box girder and cable tower connection structure according to claim 1, wherein the cable tower (10) is arranged close to the center line of the main girder, the main girder forms a vertical support by a second support (4) arranged below, and forms a horizontal support by a third support (5) arranged between the inner end edge of the main girder and the cable tower (10).
7. The bridge steel box girder and cable tower connection structure according to claim 6, wherein the edge beam (1) is arranged at the outer end of the main girder to form an inverted trapezoidal balance structure with the main girder, and the second support (4) is arranged below the main girder and at the junction of the edge beam (1).
8. The structure for connecting a steel box girder and a cable tower of a bridge according to claim 7, wherein the main girders are symmetrically arranged with respect to each other at a central line position of the main girders, the upper surfaces of the main girders obliquely extend downward at an angle of 1.5-2% from the central line position of the main girders to flanges at both sides, and the top of the cable tower (10) is connected to a stay cable (9) at the outer end of the side girder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023139342.1U CN214362789U (en) | 2020-12-23 | 2020-12-23 | Bridge steel case roof beam and cable tower connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023139342.1U CN214362789U (en) | 2020-12-23 | 2020-12-23 | Bridge steel case roof beam and cable tower connection structure |
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| Publication Number | Publication Date |
|---|---|
| CN214362789U true CN214362789U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023139342.1U Active CN214362789U (en) | 2020-12-23 | 2020-12-23 | Bridge steel case roof beam and cable tower connection structure |
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| Country | Link |
|---|---|
| CN (1) | CN214362789U (en) |
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