CN210917010U - Tube-in-tube bridge tower of space mixed cable net suspension bridge with parabolic arched tower cap - Google Patents
Tube-in-tube bridge tower of space mixed cable net suspension bridge with parabolic arched tower cap Download PDFInfo
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- CN210917010U CN210917010U CN201920489235.XU CN201920489235U CN210917010U CN 210917010 U CN210917010 U CN 210917010U CN 201920489235 U CN201920489235 U CN 201920489235U CN 210917010 U CN210917010 U CN 210917010U
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Abstract
The utility model provides a section of thick bamboo bridgework in a section of thick bamboo of space mixing cable net suspension bridge with parabola arch tower cap, section of thick bamboo herringbone tower column's top sets up the parabola arch tower cap that has the rigidity tie bar in a section of thick bamboo, and huge bracing one end anchor is in the waist of a section of thick bamboo herringbone tower column in a section of thick bamboo, and huge bracing supports in the hunch foot of parabola arch tower cap, forms racket form bridgework structure. The bearing steel wire cables are placed on the herringbone tower column in the cylinder, the carbon fiber space cable nets are anchored on the parabolic arched tower caps to enhance the space rigidity of the suspension bridge, and the two groups of cables work cooperatively. The rectangular steel tube concrete corner column and the grid tube type double-steel-plate concrete combined shear wall form a barrel structure, and the cylinder-in-cylinder herringbone tower column consists of an outer barrel structure, a core barrel structure and a plurality of rigid transverse partition plates. The novel bridge tower structure has the advantages of high structural rigidity, good wind resistance stability, rich vertical surface modeling, strong shock resistance and the like, and can be used as a bridge tower structure of a spatial cable net suspension bridge with a 4000-meter-level super-large span.
Description
Technical Field
The utility model relates to a bridge engineering field relates to a suspension bridge tower structure of super large span bridge, especially relates to a section of thick bamboo bridge tower structure in a section of thick bamboo of space mixing cable net suspension bridge with parabola arch tower cap.
Background
With the development of traffic industry, the span record of modern suspension bridges is refreshed continuously, and in the near future, people will build 4000-meter ultra-large span strait bridges.
Along with the increase of the span of the suspension bridge, the width span ratio of the suspension bridge is continuously reduced, the structure of the suspension bridge is gradually softened, the space rigidity of the suspension bridge with the ultra-large span is continuously reduced, the suspension bridge is more sensitive to wind, and the wind resistance stability of the suspension bridge with the ultra-large span is continuously reduced.
With the increase of the span of the suspension bridge, the height of the suspension bridge tower is continuously increased, and the suspension bridge super-high tower is a high-rise structure, so that the problem of anti-seismic performance of the high-rise tower of the suspension bridge with the super-large span is increasingly prominent.
Traditional suspension bridge portal bridge tower structure, two strands of parallel steel wire cable about the installation can bear the vertical load of striding footpath 4000 meters suspension bridge, however, because the lateral rigidity and the torsional rigidity of the cable system of vertical parallel are poor, can not satisfy 4000 meters level super large stride footpath strait suspension bridge's anti-wind stability requirement.
The construction of the 4000-meter-level oversized span suspension bridge requires auxiliary carbon fiber space cable nets, so that the space rigidity of the oversized span suspension bridge is improved, the lateral stiffness and the torsional stiffness of the oversized span suspension bridge are enhanced, the wind resistance stability of the oversized span suspension bridge is improved, and the engineering industry earnestly expects great innovation of an ultrahigh bridge tower of the oversized span suspension bridge.
Aiming at the requirement of the innovation of the bridge tower of the 4000-meter-level ultra-large span cable bridge, the bridge tower of the traditional suspension bridge is reformed, a giant parabola arch-shaped tower cap structure is arranged at the top of the bridge tower, and an auxiliary hyperbolic paraboloid carbon fiber space cable net is additionally arranged, so that the space rigidity of the ultra-large span cable bridge is improved, and the wind resistance stability of the ultra-large span cable bridge is enhanced; the grid steel pipe type double-steel-plate concrete combined shear wall cylinder-in-cylinder structure is used as a bridge tower column structure, the anti-seismic performance of the ultrahigh bridge tower structure is ensured, and the racket-shaped cylinder-in-cylinder bridge tower structure of the ultra-large span space mixed cable bridge is formed.
SUMMERY OF THE UTILITY MODEL
The technical problem is as follows: the utility model provides a structural rigidity is big, the wind resistance stability is good, facade molding is abundant and the strong space mixing cable net suspension bridge's that has parabola arch tower cap section of thick bamboo pylon of shock resistance in the vertical, reform traditional suspension bridge tower, the tower top sets up huge parabola arch tower cap structure, add hyperbolic paraboloid carbon fiber space cable net, strengthen the anti-wind stability, adopt grid steel pipe formula two steel sheet concrete combination shear wall section of thick bamboo in the section of thick bamboo structure as the bridge pylon post structure, ensure the shock resistance of superelevation tower structure, build 4000 meters super large span strait suspension bridge.
The technical scheme is as follows: the utility model relates to a cylinder-in-cylinder bridge tower of a space mixed cable net suspension bridge with a parabola arched tower cap, which comprises a cylinder-in-cylinder herringbone tower column and a parabola arched tower cap, wherein the cylinder-in-cylinder herringbone tower column comprises an outer cylinder structure, a core cylinder structure, a plurality of rigid transverse clapboards and the like, the left side and the right side of the suspension bridge tower are respectively provided with a cylinder-in-cylinder herringbone tower column, the parabola arched tower cap comprises a giant parabola arch, a giant rigid tie bar, a giant diagonal brace and the like, the giant parabola arch is placed on the two cylinder-in-cylinder herringbone tower columns in a cantilever outward-projecting manner, two ends of the giant parabola arch are connected by a giant rigid tie bar, one end of the giant diagonal brace is anchored at the waist of the cylinder-in-cylinder herringbone tower column, the other end of the diagonal brace is supported at the arch foot of the giant parabola arch 21, a plurality of connecting beams are arranged between the two cylinder-in-cylinder herringbone tower columns, the structure comprises a racket-shaped suspension bridge tower structure, wherein a cylinder-in-cylinder herringbone tower column of the bridge tower is supported on a bridge foundation, a suspension bridge cable system is divided into two groups, namely a bearing steel wire cable and a carbon fiber space cable net, the bearing steel wire cable is placed at the top of the cylinder-in-cylinder herringbone tower column to bear vertical load, the carbon fiber space cable net is anchored on a parabolic arch tower cap to enhance the space rigidity of the suspension bridge, and a bridge deck system stiffening beam is suspended below the suspension bridge cable system.
The outer barrel structure and the core barrel structure of the herringbone tower column of the barrel-in-barrel are formed by four rectangular steel pipe concrete corner posts and four grid pipe type double-steel-plate concrete combined shear walls, the four rectangular steel pipe concrete corner posts are arranged at four corner positions of the outer barrel structure and the core barrel structure, and the grid pipe type double-steel-plate concrete combined shear walls are welded between the rectangular steel pipe concrete corner posts.
The grid tube type double-steel-plate concrete combined shear wall is composed of double-layer steel plates, a corrugated steel plate, channel steel end columns and concrete fillers, wherein the corrugated steel plate is arranged in the middle of the double-layer steel plates, the channel steel end columns are arranged at two ends of the double-layer steel plates, the three are welded firmly to form a long strip-shaped grid tube type wallboard with a cavity, the concrete fillers are poured into the cavity of the grid tube type wallboard, and the grid tube type double-steel-plate concrete combined shear wall is formed.
The utility model discloses still provide the construction method of a section of thick bamboo bridge tower in the mixed cable net suspension bridge in space with parabola arch tower cap, the method includes following step:
the method comprises the following steps: manufacturing a rectangular steel tube concrete corner column and a grid tube type double-steel-plate concrete combined shear wall in a factory, constructing an outer cylinder structure and a core cylinder structure in an assembled mode, and constructing a plurality of rigid cross partition plates to form a cylinder-in-cylinder herringbone tower column;
step two: the method comprises the following steps of (1) installing a left cylinder-in-cylinder herringbone tower column and a right cylinder-in-cylinder herringbone tower column on a bridge foundation in site hoisting construction, constructing and installing a huge connecting beam, constructing and installing a huge parabolic arch at the top of the two cylinder-in-cylinder herringbone tower columns, connecting a huge rigid tie bar with two arch feet of the huge parabolic arch, anchoring one end of a huge diagonal brace at the waist of the cylinder-in-cylinder herringbone tower column, and supporting the other end of the huge diagonal brace at the arch feet of the huge parabolic arch to form a racket-shaped cylinder-in-cylinder bridge tower with a parabolic arch-shaped tower cap;
step three: the cable system is divided into two groups of bearing steel wire cables and carbon fiber space cable nets, the bearing steel wire cables are placed on a herringbone tower column in a cylinder to bear vertical load, the carbon fiber space cable nets are anchored on a parabolic arched tower cap to enhance the space rigidity of the suspension bridge, a bridge deck stiffening beam is installed under the cable system in a hanging construction mode, a railing is installed, an epoxy asphalt concrete pavement is paved, a spatial mixed cable net suspension bridge with an oversized span is formed, and the traffic is operated.
The hyperbolic paraboloid is formed by moving a convex parabola along a concave parabola. The hyperbolic paraboloid is a typical secondary ruled curved surface, the curved surface can be formed by two groups of straight lines, the secondary ruled curved surface has important application value in buildings, the secondary ruled curved surface is often used for forming a framework of the building, the building built by the ruled curved surface has excellent mechanical property, the construction process of linearly arranging reinforcing steel bars or inhaul cables is simple, and the building has beautiful appearance and firm structure.
The top of the bridge tower column is additionally provided with a parabolic arched tower cap with an overhanging cantilever to form a racket-shaped bridge tower structure, the hyperbolic paraboloid carbon fiber space cable can be anchored by utilizing the huge parabolic arched tower cap on the top of the bridge tower, the space cable provides horizontal component force, the torsional rigidity and the lateral rigidity of the ultra-large span suspension bridge are improved, and the wind resistance stability of the ultra-large span suspension bridge is facilitated.
The middle cylinder structure of the grid tube type double-steel-plate concrete combined shear wall cylinder has the advantages of being full in hysteresis curve, high in bearing capacity, slow in rigidity degradation, large in ductility, strong in energy consumption capacity and the like, and the anti-seismic performance is excellent.
The traditional frame type bridge tower of the suspension bridge is reformed, a middle cylinder structure of a grid tube type double-steel-plate concrete combined shear wall cylinder is used as a bridge tower column, the anti-seismic performance of the high-rise bridge tower is improved, a giant parabolic arched tower cap is arranged on the top of the bridge tower, a hyperbolic paraboloid carbon fiber space cable net is installed, the spatial rigidity of the suspension bridge is improved, the wind resistance stability is improved, and the 4000-meter-level super-large span channel gorge suspension bridge can be built.
Has the advantages that: the utility model discloses a section of thick bamboo bridgework tower in a section of thick bamboo of space mixing cable net suspension bridge with parabola arch tower cap has following beneficial effect:
the existing suspension bridge tower column basically adopts a frame column bridge tower, the existing suspension bridge tower column is a vertical parallel cable surface system formed by two main cables and a suspender, two parallel steel wire cables bear vertical load, and because the two parallel main cables and the suspender do not provide horizontal component force, the parallel cable system has poor lateral rigidity and poor torsional rigidity, the width span ratio of the oversized span suspension bridge is small, the two parallel main cables can shake in different directions to cause flutter instability of the oversized span suspension bridge structure, and the frame column bridge tower suspension bridge cannot meet the requirements of the oversized span suspension bridge on the anti-wind stability.
The utility model discloses a section of thick bamboo bridge tower in section of thick bamboo of space mixed cable net suspension bridge with parabola arch tower cap, its cable net adopts two sets of cables of parallel wire cable and hyperbolic paraboloid carbon fiber space cable net to constitute, traditional parallel wire cable is born the vertical load as main cable, increase hyperbolic paraboloid carbon fiber space cable net as the auxiliary cable, carbon fiber space cable provides horizontal component, the anti side rigidity that can effectively improve super large span space cable suspension bridge has strengthened super large span suspension bridge's anti side rigidity and torsional rigidity, two sets of cables use mixedly, cooperative work, the advantage is complementary; the parabolic steel structure curved beam is transversely connected with the hyperbolic paraboloid space cable net and the two strands of parallel steel wire cable main cables, the stiffening beam bridge deck system is pulled tightly like a parachute, the space rigidity of the space cable system is improved, the torsional frequency and the torsional frequency ratio of the ultra-large span suspension bridge can be greatly improved, the flutter critical wind speed can be greatly improved, and the wind resistance stability of the ultra-large span suspension bridge is ensured.
The traditional suspension bridge tower usually adopts a reinforced concrete hollow column bridge tower, has the advantages of ensuring the structural rigidity of the suspension bridge tower, and has the problems that the reinforced concrete bridge tower has poor anti-seismic ductility, and the reinforced concrete high-rise bridge tower structure of the oversized span suspension bridge can collapse under the action of rare earthquakes.
The super large span suspension bridge tower is a high-rise bridge tower structure, bears huge earthquake acting force, and must take effective measures to ensure the earthquake resistance of the bridge tower. The utility model discloses a bridge tower column adopts a section of thick bamboo pylon structure in the two steel sheet concrete composite shear wall section of thick bamboo of grid tubular, a section of thick bamboo pylon is by urceolus structure in the section of thick bamboo, core inner tube structure and a plurality of way rigidity cross slab three are constituteed, 85% earthquake shear force or wind load are undertaken to the urceolus structure, inner tube structure vertical pressure load and double as bridge tower traffic well, set up the wholeness of a section of thick bamboo pylon structure in the rigidity cross slab reinforcing section of thick bamboo, urceolus structure and core inner tube structure collaborative work, a section of thick bamboo structure is a high-rise structure system that has multichannel antidetonation defence line in the section of thick bamboo, the urceolus structure is first antidetonation defence line, the inner tube structure is second way defence line, guarantee that the high-rise bridge tower structure of super large span suspension bridge satisfies "the little shake is bad, well shake can be repaiied, the target is established to big.
The utility model discloses a tower column structure adopts two steel sheet concrete combination shear wall core section of thick bamboo structures of grid tubular in the bridge tower column adopts the two steel sheet concrete combination shear wall of grid tubular, has good anti-seismic performance. Set up the wave form steel sheet in the middle of the double steel sheet, the both ends of double steel sheet set up the channel-section steel end post, and the three welds firmly, forms the rectangular shape grid tubular wallboard that has the cavity, pours the concrete filler in the grid tubular wallboard cavity, forms the two steel sheet concrete combination shear wall of grid tubular. The concrete in the pipe is in a three-dimensional compression state, so that the compression strength and the ductility of the concrete are improved; because the existence of intraductal concrete and inside wave form steel sheet drawknot effect have effectively restricted steel cover plate's out-of-plane deformation for novel combination shear wall has better buckling resistance ability. The novel combined shear wall has the advantages of full hysteresis curve, high bearing capacity, slow rigidity degradation, high ductility and high energy consumption capacity, and accords with the anti-seismic design concept of high axial-pressure ratio, high ductility, strong shear and weak bending and thin wall thickness.
The bridge tower comprises a bridge tower body, a grid steel pipe type double-steel-plate concrete combined shear wall cylinder middle cylinder structure is adopted as a bridge tower column structure, the anti-seismic performance of an ultrahigh bridge tower structure is ensured, a cylinder middle cylinder bridge tower of a space mixed cable net suspension bridge with the parabolic arched tower cap is formed, and the bridge tower body has the advantages of being large in structural rigidity, rich in vertical face modeling, concise and stable, good in anti-wind stability, strong in anti-seismic capacity and the like, and can be used as a bridge tower structure of a 4000-meter oversized span suspension bridge.
Drawings
FIG. 1 is a three-dimensional schematic view of a drum-in-drum bridge tower of a space-mixing cable-mesh suspension bridge with a parabolic arched tower cap;
FIG. 2 is a schematic plan view of a column structure of a tube-in-tube bridge;
FIG. 3 is a schematic structural view of a grid pipe type double-steel-plate concrete combined shear wall;
FIG. 4 is a three-dimensional schematic view of a hyperbolic paraboloid space cable net;
FIG. 5 is a three-dimensional schematic view of a suspension bridge of an ultra-large span hyperbolic paraboloid spatial hybrid cable system;
in the figure, a cylinder-in-cylinder herringbone tower column 1; an outer cylindrical structure 11; a core barrel structure 12; a rigid bulkhead 13; a parabolic arched tower cap 2; a giant parabola arch 21; giant rigid tie bar 22; a giant diagonal brace 23; a giant connecting beam 3; a bridge foundation 4; a cable system 5, a bearing steel wire cable 51 and a carbon fiber space cable net 52; a deck-based stiffening girder 6; rectangular concrete-filled steel tube corner posts 111; a grid tube type double-steel-plate concrete combined shear wall 112; a double-layer steel plate 1121; a corrugated steel plate 1122; channel steel end posts 1123; concrete filler 1124.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
The utility model relates to a cylinder-in-cylinder bridge tower of a space mixed cable net suspension bridge with a parabola arched tower cap, which comprises a cylinder-in-cylinder herringbone tower column 1 and a parabola arched tower cap 2, wherein the cylinder-in-cylinder herringbone tower column 1 consists of an outer cylinder structure 11, a core cylinder structure 12 and a plurality of rigid cross plates 13, the left side and the right side of the suspension bridge tower are respectively provided with the cylinder-in-cylinder herringbone tower column 1, the parabola arched tower cap 2 consists of a giant parabola arch 21, a giant rigid tie bar 22 and a giant diagonal brace 23, the giant parabola arch 21 is placed on the two cylinder-in-cylinder herringbone tower columns 1 in a cantilever outward-projecting manner, two ends of the giant parabola arch 21 are connected by the giant rigid tie bar 22, one end of the giant diagonal brace 23 is anchored at the waist of the cylinder-in-cylinder herringbone tower column 1, the other end of the giant diagonal brace 23 is supported at the arch foot of the parabola arch 21, a plurality of giant connecting beams 3 are arranged between the herringbone tower columns 1 in the two cylinders to form a racket-shaped suspension bridge tower structure, the herringbone tower columns 1 in the cylinders of the bridge tower are supported on a bridge foundation 4, a suspension bridge cable system 5 is divided into two groups, namely a bearing steel wire cable 51 and a carbon fiber space cable net 52, the bearing steel wire cable 51 is placed at the top of the herringbone tower columns 1 in the cylinders to bear vertical load, the carbon fiber space cable net 52 is anchored on the parabolic arch tower caps 2 to enhance the space rigidity of the suspension bridge, and a bridge deck system stiffening beam 6 is suspended below the suspension bridge cable system 5.
The outer cylinder structure 11 and the core cylinder structure 12 of the cylinder-in-cylinder herringbone tower column 1 are formed by four rectangular concrete-filled steel tube corner columns 111 and four grid pipe type double-steel-plate concrete combined shear walls 112, the four rectangular concrete-filled steel tube corner columns 111 are arranged at four corners of the outer cylinder structure 11 and the core cylinder structure 12, and the grid pipe type double-steel-plate concrete combined shear walls 112 are welded between the rectangular concrete-filled steel tube corner columns 111.
The grid tube type double-steel-plate concrete combined shear wall 112 is composed of double-layer steel plates 1121, corrugated steel plates 1122, channel steel end columns 1123 and concrete fillers 1124, the corrugated steel plates 1122 are arranged in the middle of the double-layer steel plates 1121, the channel steel end columns 1123 are arranged at two ends of the double-layer steel plates 1121, the three are welded firmly to form a long strip-shaped grid tube type wall plate with a cavity, the concrete fillers 1124 are poured in the cavity of the grid tube type wall plate, and the grid tube type double-steel-plate concrete combined shear wall 112 is formed.
A construction method of a cylinder-in-cylinder bridge tower of a space mixed cable net suspension bridge with a parabolic arched tower cap comprises the following steps:
the method comprises the following steps: manufacturing a rectangular steel pipe concrete corner post 111 and a grid pipe type double-steel plate concrete combined shear wall 112 in a factory, constructing an outer cylinder structure 11 and a core cylinder structure 12 in an assembled mode, and constructing a plurality of rigid transverse partition plates 13 to form a cylinder-in-cylinder herringbone tower post 1;
step two: the method comprises the following steps of (1) installing left and right cylinder-in-cylinder herringbone tower columns 1 on a bridge foundation 4 in site hoisting construction, installing a huge connecting beam 3 in construction, installing a huge parabolic arch 21 on the tops of the two cylinder-in-cylinder herringbone tower columns 1 in construction, connecting two arch feet of the huge parabolic arch 21 by a huge rigid tie bar 22, anchoring one end of a huge diagonal brace 23 to the waist of the cylinder-in-cylinder herringbone tower column 1, and supporting the other end of the huge diagonal brace 23 to the arch feet of the huge parabolic arch 21 to form a racket-shaped cylinder-in-cylinder bridge tower with a parabolic arch tower cap 2;
step three: the cable system 5 is divided into two groups of bearing steel wire cables 51 and carbon fiber space cable nets 52, the bearing steel wire cables 51 are placed on a herringbone tower column 1 of a cylinder in a cylinder to bear vertical load, the carbon fiber space cable nets 52 are anchored on a parabolic arch tower cap 2 to enhance the space rigidity of the suspension bridge, a bridge deck stiffening beam 6 is installed under the cable system 5 in a hanging construction mode, a railing is installed, an epoxy asphalt concrete pavement is paved, and the spatial mixed cable net suspension bridge with the ultra-large span is formed and is operated by a vehicle.
Specifically, as shown in fig. 5, a certain strait bridge is a highway-railway dual-purpose super large span suspension bridge, the main span is 4000m, the full width of the bridge deck is 60m, the bridge type of the super large span suspension bridge adopting a hyperbolic paraboloid space mixed cable system is adopted, and the cylinder-in-cylinder bridge tower type of the space mixed cable net suspension bridge with a parabolic arched tower cap is adopted.
The span of the suspension bridge is 1350m +4000m +1350m, the two sides of the bridge deck are 3 unidirectional lanes of the highway, the middle part of the bridge deck is a double-track railway, the anchor is of a large-volume reinforced concrete structure, the prism-shaped anchor is embedded into a rock body, the foundation of a bridge tower column is of two oval columnar structures, and the height of the bridge tower is 500 meters (from sea level meter).
The cylinder-in-cylinder tube-type bridge tower with the parabola-shaped tower cap comprises a cylinder-in-cylinder herringbone tower column, parabola-shaped tower caps and giant connecting beams, five giant connecting beams are arranged on the bridge tower, the cylinder-in-cylinder herringbone tower column comprises an outer cylinder structure, a core cylinder structure and a plurality of rigid transverse partition plates, the outer cylinder structure is 25 × 20 m in rectangular cross section, the wall thickness is 2m, the core cylinder structure is 12.5 × 10 m in rectangular cross section, the wall thickness is 1.2 m, the outer cylinder structure and the core cylinder structure are of grid tube type double-steel-plate concrete combined shear wall structures, and one steel-concrete rigid transverse partition plate is arranged at intervals of 50 m.
The parabola arch-shaped tower cap is composed of a huge parabola arch, a huge rigid tie bar and a huge diagonal support, wherein the huge parabola arch at the top of the bridge is made of steel pipe concrete, the span length of the parabola arch is 200 meters, the rise height of the parabola arch is 50 meters, the section size of the parabola arch is a rectangle of 25 × 20 meters, the huge rigid tie bar is a welded steel box girder, the section size of the parabola arch is a rectangular section of 25 × 15 meters, the center of the parabola arch is provided with a phi 0.6 meter prestressed high-strength steel wire rope, the huge diagonal support is made of steel pipe concrete, and the section size of the huge diagonal support is a rectangle of 25 × 20 meters.
The suspension bridge cable comprises three groups of cables, namely a left parallel steel wire cable, a right parallel steel wire cable, a hyperbolic paraboloid carbon fiber space cable net and a carbon fiber space cable-stayed net, wherein the parallel steel wire cables adopt a prefabricated parallel strand method (PPWS method) process, 2000MPa phi 5.2mm high-strength steel wires are adopted, four steel wires are arranged in a full bridge, the central distance of 2 steel wires on one side is 2m, the diameter of each main cable is 1.5m, the distance between vertical steel wire suspenders is 50m, 2 × 79 suspenders are counted in total, the hyperbolic carbon fiber space cable net adopts 3800MPa high-strength carbon fiber cables, 24 carbon fiber saddle paraboloid space cables are arranged in the full bridge, the diameter of each main cable is 0.3m, a steel structure curved beam with a lower pull rod is arranged on the saddle paraboloid cable net and the parallel steel wire cables, the two steel structure curved beams are counted in total 39, two ends of the steel structure curved beam are provided with oblique carbon fiber suspenders to be connected with stiffening girders, the distance between the oblique carbon fiber suspenders is 100 m, 2 × 39 carbon fiber space cable-stayed cables are arranged in total, the diameter of each carbon fiber space cable, the carbon fiber cables is 0.6m, the distance between the carbon fiber space cable.
The stiffening girder adopts steel truss-like stiffening girder, and the steel truss-like height is 12 meters, and suspension bridge's middle zone sets up three neotype arch central authorities and detains to further strengthen the cooperative work ability of space main push-towing rope system and stiffening girder steel, at suspension bridge midspan part, a resistance to plucking stake is squeezed into in the seabed, when meetting the above-mentioned typhoon of 18 grades, adopts interim anti-wind cable to consolidate the suspension bridge.
The 4000 meter-scale space mixed cable rope and strait suspension bridge is a marked bridge, a tourist landscape design is required to be made for a high-rise bridge tower, a sightseeing traffic elevator is arranged in a tower column, a space tunnel restaurant is arranged at the top of the tower, a sightseeing platform is arranged at a bridge floor, a submarine world fish sight is arranged at a bridge foundation, and neon lamps are arranged on the bridge tower to beautify the night view of the bridge.
Claims (2)
1. The utility model provides a section of thick bamboo bridge tower in space mixture cable net suspension bridge with parabola arch tower cap, includes section of thick bamboo chevron shape pylon (1) and parabola arch tower cap (2) in a section of thick bamboo, its characterized in that: the cylinder-in-cylinder herringbone tower column (1) is composed of an outer cylinder structure (11), a core cylinder structure (12) and a plurality of rigid transverse partition plates (13), the left side and the right side of the suspension bridge tower are respectively provided with the cylinder-in-cylinder herringbone tower column (1), the parabolic arched tower cap (2) is composed of a giant parabolic arch (21), a giant rigid tie bar (22) and a giant diagonal brace (23), the giant parabolic arch (21) is placed on the two cylinder-in-cylinder herringbone tower columns (1) in a cantilever outward-projecting mode, arch feet at two ends of the giant parabolic arch (21) are connected through the giant rigid tie bar (22), one end of the giant diagonal brace (23) is anchored at the waist part of the cylinder-in-cylinder herringbone tower column (1), the other end of the giant diagonal brace (23) is supported at the arch feet of the giant parabolic arch bar (21), and a plurality of road connecting beams (3) are arranged between the two cylinder-in-cylinder herringbone tower columns (1), the structure comprises a racket-shaped suspension bridge tower structure, wherein a cylinder-in-cylinder herringbone tower column (1) of the bridge tower is supported on a bridge foundation (4), a suspension bridge cable system (5) is divided into two groups, namely a bearing steel wire cable (51) and a carbon fiber space cable net (52), the bearing steel wire cable (51) is placed at the top of the cylinder-in-cylinder herringbone tower column (1) to bear vertical load, the carbon fiber space cable net (52) is anchored on a parabolic arch tower cap (2) to enhance the space rigidity of the suspension bridge, and a bridge deck system stiffening beam (6) is suspended below the suspension bridge cable system (5).
2. The drum-in-drum bridge tower of a space hybrid cable net suspension bridge with a parabolic arched tower cap according to claim 1, wherein: an outer cylinder structure (11) and a core cylinder structure (12) of a cylinder-in-cylinder herringbone tower column (1) are composed of four rectangular steel pipe concrete corner columns (111) and four grid pipe type double-steel-plate concrete combined shear walls (112), the four rectangular steel pipe concrete corner columns (111) are arranged at four corner positions of the outer cylinder structure (11) and the core cylinder structure (12), and the grid pipe type double-steel-plate concrete combined shear walls (112) are welded between the rectangular steel pipe concrete corner columns (111).
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| CN201920489235.XU CN210917010U (en) | 2019-04-09 | 2019-04-09 | Tube-in-tube bridge tower of space mixed cable net suspension bridge with parabolic arched tower cap |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898415A (en) * | 2019-04-09 | 2019-06-18 | 江苏交通工程咨询监理有限公司 | Cylinder bridge tower in the cylinder of spatial mixing rope net suspension bridge with parabola arch tower cap |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898415A (en) * | 2019-04-09 | 2019-06-18 | 江苏交通工程咨询监理有限公司 | Cylinder bridge tower in the cylinder of spatial mixing rope net suspension bridge with parabola arch tower cap |
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