CN113202011A - Large-span horizontal pull type cylindrical reticular pedestrian landscape suspension bridge and construction method thereof - Google Patents
Large-span horizontal pull type cylindrical reticular pedestrian landscape suspension bridge and construction method thereof Download PDFInfo
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- CN113202011A CN113202011A CN202110640057.8A CN202110640057A CN113202011A CN 113202011 A CN113202011 A CN 113202011A CN 202110640057 A CN202110640057 A CN 202110640057A CN 113202011 A CN113202011 A CN 113202011A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/04—Supports for hops, vines, or trees
- A01G17/06—Trellis-work
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/04—Supports for hops, vines, or trees
- A01G17/06—Trellis-work
- A01G2017/065—Trellis-work for supporting vines having wire-tensioning devices
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
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Abstract
The invention relates to a large-span flat-pull cylindrical mesh pedestrian landscape suspension bridge and a construction method thereof. By using the Tibetan rattan bridge for reference, the horizontal pull type pedestrian suspension bridge in the gorge scenic spot is reformed, thick and heavy concentrated cables are changed into scattered single-leaf double-curved-surface cylinder net-shaped space cables, a small number of elliptical rigid stiffening rings are arranged inside a cylinder net, and double-spiral steel wire stirrups in the positive and negative directions are wound outside the cylinder net to form the large-span horizontal pull type cylinder net-shaped pedestrian landscape suspension bridge. The single-blade hyperbolic cylinder netted space cable, the elliptical rigid stiffening ring and the double-spiral steel wire stirrups work cooperatively, so that the torsional rigidity and the lateral rigidity of the pedestrian suspension bridge are improved, and the pedestrian suspension bridge has good wind resistance stability. The bridge tower anchoring cylinder net-shaped space cable rope of the curved double-limb bridge pier column and the giant elliptic steel ring tower cap reduces the weight of the single-strand cable rope due to the dispersed cylinder net-shaped space steel wire cable rope, and is convenient to construct. The transparent glass bridge deck is embedded in the bridge deck truss, the cirrus grass is wound on the cylindrical netted space cable rope in a double-spiral mode, sunlight is shielded, the ecological environment is protected, the shape is attractive, and visitors walk in the cylindrical netted suspension bridge, so that personal safety can be guaranteed.
Description
Technical Field
The invention belongs to the field of civil engineering, relates to a pedestrian landscape suspension bridge, and particularly relates to a large-span flat-pull type cylindrical reticular pedestrian landscape suspension bridge and a construction method thereof.
Background
With the rise of the tourism industry, for the purpose of facilitating the tourism traffic of the gorge scenic area, the number of the pedestrian suspension bridges in the gorge scenic area is increased day by day, and the requirements on the aesthetics and the safety of the pedestrian suspension bridge in the gorge scenic area are higher and higher.
The pedestrian landscape glass bridge deck suspension bridge in the canyon scenic spot is a special bridge in the canyon scenic spot, but in recent years, the pedestrian landscape glass bridge deck suspension bridge is crowded by a plurality of tourists to cause dangerous situations, and the use safety problem of the pedestrian suspension bridge in the canyon scenic spot has attracted attention of all social circles.
The scheme of the suspended safety net is adopted for the canyon scenic region pedestrian landscape glass bridge deck suspension bridge, so that the safety of the traditional pedestrian landscape suspension bridge can be improved, however, the attractiveness of the canyon scenic region pedestrian suspension bridge is seriously damaged, the problem of how to coordinate and consider the aesthetics and the use safety of the canyon scenic region pedestrian suspension bridge is solved, and a bridge designer needs to solve the difficult problem urgently.
The Xizang Yituo county rattan bridge is built in the Qing dynasty of 12 th century, the bridge spans over the Yalu Tibetan Shujiang, the rattan bridge is a tubular suspended bridge, the rattan bridge is built by using white rattans, four to six thick vines at the bottom of the bridge and three to four thick vines at two sides respectively form the warp of the rattan network, the thick vines of the warp are fixed on a big tree or a wooden tree at the head of the bridge, then the thick vines and the thin vines are respectively used as weft, a circle of thick vines are wound at a certain distance, and the thin rattan is woven among the thick rattans.
The flatly-pulled suspension bridge is originally developed by troops and used for preparing bridges in war, has the advantages of high construction speed, investment conservation, reusable component assembly and the like, is rapidly expanded in application range, and is widely applied to water conservancy, traffic, municipal administration and mine industries.
The flat suspension bridge belongs to a flexible bridge, and a famous large-ferry river Luding bridge is a flat suspension bridge structure. The bridge deck structure of the horizontal pull suspension bridge does not need to be connected with a main cable through a suspension cable, the bridge deck structure is directly paved on the suspension cable of the main cable, the vertical span ratio of the horizontal pull suspension bridge determines the longitudinal slope of the bridge deck, the vertical span ratio of a vehicle bridge is generally 1/45-1/35, and the vertical span ratio of a pedestrian suspension bridge is generally 1/40-1/20. In the canyon mountainous area, due to good geological conditions and low anchor foundation construction cost, the construction of the pedestrian suspension bridge special for tourism by adopting the flat-pull suspension bridge scheme has stronger competitive advantage and can promote the progress of tourism traffic.
The single-sheet hyperboloid is a typical quadratic straight-line curved surface, the curved surface can be formed by two groups of straight lines, the quadratic straight-line curved surface has important application value in construction, the quadratic straight-line curved surface is often used for forming a framework of a building, and the building constructed by the quadratic straight-line curved surface has excellent mechanical property, simple construction process, beautiful appearance and firm structure.
By using the Tibet Memo county rattan bridge for reference, the traditional horizontal pull type pedestrian suspension bridge is reformed by using the straight line property of a single-leaf hyperboloid, thick and heavy concentrated cables are changed into scattered cylindrical net-shaped space cables, and a plurality of steel wire cables are arranged in a spatial cross mode to form the large-span horizontal pull type cylindrical net-shaped pedestrian landscape suspension bridge. The cylindrical netted space cable suspension bridge is firm in structure and attractive in appearance, vines are planted around the cylindrical netted space cable suspension bridge to shade sunlight, the ecological landscape effect is improved, tourists walk in the cylindrical netted cable system, safety is guaranteed, the aesthetics and the use safety of the pedestrian landscape suspension bridge are considered, and the cylindrical netted space cable suspension bridge has a good application prospect.
Disclosure of Invention
The technical problem is as follows: the invention provides a large-span flat-pull type cylinder net-shaped manway landscape suspension bridge which is beautiful in shape, simple in structure, ecological, environment-friendly, convenient to assemble and construct, safe to use and good in wind resistance stability.
The technical scheme is as follows: the invention relates to a large-span horizontal-pulling type cylindrical reticular landscape suspension bridge, which comprises a suspension bridge tower, a cylindrical reticular space cable system, an anchorage, a bridge deck system and a spiral liana plant, and is characterized in that: the suspension bridge tower consists of a curved double-limb bridge pier column and a huge oval steel annular tower cap, and the huge oval steel annular tower cap is fixed on the curved double-limb bridge pier column; the cylindrical net-shaped space cable system consists of a single-leaf hyperboloid space cable net, oval rigid stiffening rings, double-spiral steel wire stirrups and a suspension bridge back cable, wherein the single-leaf hyperboloid space cable net is in a drooping single-leaf hyperboloid cylindrical net-shaped structure, the single-leaf hyperboloid space cable net is anchored on a huge oval steel annular tower cap, a plurality of oval rigid stiffening rings are arranged inside the single-leaf hyperboloid space cable net, the double-spiral steel wire stirrups consist of four space curves including a positive double spiral line and a negative double spiral line, the double-spiral steel wire stirrups are wound outside the single-leaf hyperboloid space cable net, four suspension bridge back cables are divided into a left group and a right group, one end of each suspension bridge back cable is anchored on the huge oval steel annular tower cap, and the other end of each suspension bridge back cable is anchored in an anchor; the bridge deck system is arranged in the cylindrical net-shaped space cable system, pedestrians walk in the inner space of the cylindrical net-shaped space cable system, and the spiral vine grass plants are wound outside the single-leaf hyperboloid space cable net to shade sunlight.
Preferably, the bridge deck system comprises a space truss type stiffening girder, a channel steel connecting piece and a glass bridge deck, the space truss type stiffening girder is placed at the bottom of the single-leaf hyperboloid space cable net, the channel steel connecting piece is welded on a top steel pipe of the space truss type stiffening girder, a plane steel frame formed by the channel steel connecting piece is embedded in the plane steel frame, and the glass bridge deck is embedded in the plane steel frame.
The invention discloses a construction method of a large-span horizontal pull type cylinder network pedestrian landscape suspension bridge, which is characterized by comprising the following steps of:
the first step is as follows: according to the requirements of geological topography and landform conditions of a gorge scenic area, selecting a bridge site of a pedestrian landscape suspension bridge, constructing an anchorage, constructing a curved double-limb bridge pier column, and installing a huge oval steel annular tower cap to form a suspension bridge tower;
the second step is that: installing a suspension bridge back stay cable, drawing a steel wire cable to pass through a river, forming a single-leaf hyperboloid space cable net by spatial crossing of a plurality of steel wire cables, anchoring the single-leaf hyperboloid space cable net on a giant oval steel annular tower cap, installing a plurality of oval rigid stiffening rings inside the single-leaf hyperboloid space cable net, and winding double-spiral steel wire stirrups in the positive and negative directions outside the single-leaf hyperboloid space cable net to form a cylindrical net-shaped space cable system;
the third step: welding steel pipes to form a space truss type stiffening girder, wherein the space truss type stiffening girder is placed at the bottom of a single-leaf hyperboloid space cable net, welding channel steel connecting pieces to form a plane steel frame on top steel pipes of the space truss type stiffening girder, and embedding a glass bridge deck in the plane steel frame to form a bridge deck system;
the fourth step: planting vine grass, winding spiral vine grass plants outside the single-leaf hyperboloid space cable net to shade sunlight;
the fifth step: and installing handrails and colored lamps to build a horizontal pulling type pedestrian landscape glass suspension bridge of the cylindrical mesh space cable system, and receiving tourists for operation and use.
Aiming at the problem that the pedestrian suspension bridge in the canyon scenic spot faces the coordination of bridge aesthetics and protection safety, the single-blade hyperbolic cylinder net-shaped space cable suspension bridge is adopted, the shape is beautiful, and tourists can walk inside the cylinder net to ensure safety, thereby achieving two purposes at one stroke.
The traditional horizontal pulling type pedestrian suspension bridge is reformed, thick and heavy concentrated cables are changed into scattered space steel wire cables, the weight of single-stranded cables is reduced, the construction is convenient, and the large-span horizontal pulling type cylinder network pedestrian landscape suspension bridge is formed.
The vine grass is planted, and the spiral vine grass plants grow along the double-spiral steel wire stirrups in the positive and negative directions, so that sunlight is shielded, the landscape effect of the pedestrian suspension bridge is improved, and the humanistic connotation of a canyon scenic spot is enriched.
Has the advantages that: compared with the prior art, the invention has the following advantages:
at present, the scheme of hanging a safety net from the outer side is adopted for the pedestrian landscape suspension bridge in the gorge scenic region to carry out safety protection technical measures, so that the aesthetic property of the pedestrian landscape suspension bridge in the gorge scenic region is seriously damaged, two functional requirements of the aesthetic property and the safety of the pedestrian landscape suspension bridge in the gorge scenic region are met, and the problem that the pedestrian landscape suspension bridge in the gorge scenic region needs to be solved urgently is solved.
By using the Tibetan ink to take off county rattan bridge, the straight line nature of single-leaf hyperboloid is utilized, reform traditional parallel-pulling type pedestrian suspension bridge, change thick heavy concentrated cable into scattered space steel wire cable, alleviate the weight of single strand cable, convenient construction, inside sets up oval rigid stiffening ring, improve the space rigidity of space cable system, adopt double helix steel wire stirrup cage to bind the space cable, improve the structural integrity of space cable system, vine plants are planted at the top, shade sunshine, increase the view effect, form a big span of straight section of thick bamboo netted pedestrian landscape suspension bridge, can compromise the aesthetic property and the safety in utilization of pedestrian landscape suspension bridge simultaneously.
Adopt single-leaf hyperboloid space cable system to replace parallel steel wire cable, single-leaf hyperboloid space cable system comprises single-leaf hyperboloid space cable, oval rigid stiffening ring and two spiral steel wire stirrup, and the three work in coordination forms the view suspension bridge of people of section of thick bamboo netted space cable system, can give full play to the advantage of space cable system, has improved the structure space rigidity of view suspension bridge, and space cable structural system has good mechanical properties.
The single-blade double-curved-surface space has a beautiful thin waist curve shape, is coquettish, beautiful forward and reverse DNA double-helix four steel wire stirrups are wound on the single-blade double-curved-surface cylinder net-shaped space cable, and has rich vertical surfaces and attractive appearance; the vines are planted along the four forward and reverse double-spiral steel wire stirrups crossed in space to shield sunlight, the ecological environment-friendly bridge is used for landscaping, the ecological landscape effect is improved, the vines are wound around the long-strip-shaped bridge deck in a double-spiral mode to enter a shade lane between trees, canyon landscape can be appreciated, attractive scenes are achieved, and the humanistic connotation of scenic spots is enriched.
The pedestrian landscape suspension bridge of the cylindrical net-shaped space cable system wound by the vine grass double helix ensures safety when tourists walk in the cylindrical net-shaped cable system, and coordinates aesthetics and safety of the pedestrian suspension bridge.
The pedestrian suspension bridge belongs to the category of flexible suspension bridges, the length-width ratio of the pedestrian suspension bridge is larger and larger along with the continuous increase of the span of the pedestrian suspension bridge, the lateral rigidity of the oversized span pedestrian suspension bridge is insufficient, the comfort of a tourist for walking the pedestrian suspension bridge is influenced, the torsional rigidity of the oversized span pedestrian suspension bridge is insufficient, and the problem of wind resistance stability and stability of the oversized span pedestrian suspension bridge is increasingly emphasized.
The single-blade hyperboloid cylinder net-shaped space cable system has good torsional rigidity and lateral rigidity, the flutter wind resistance stability of the single-blade hyperboloid cylinder net-shaped space cable system can be greatly improved, the single-blade hyperboloid space cable has horizontal component force, the lateral rigidity of the single-blade hyperboloid cylinder net-shaped space cable system is improved, the swing displacement amplitude of the pedestrian suspension bridge is reduced, and the twist divergence calm wind stability of the pedestrian suspension bridge can be greatly improved.
The classic parallel steel wire cable suspension bridge is a structural system that a left cable and a right cable suspend a bridge deck stiffening girder, the weight of the cables continuously increases along with the increase of the span of the pedestrian suspension bridge, a construction technical scheme of a temporary catwalk cable system is required for constructing the large-span pedestrian suspension bridge, the construction is complex, and the construction cost of the pedestrian suspension bridge structure is increased.
The cylindrical net-shaped cable system changes thick and heavy concentrated cables into scattered space steel wire cables, reduces the weight of single-strand cables, can easily drag and draw the steel wire cables with thin diameters to cross rivers, can install the multi-strand steel wire cables by using a simple support frame, is convenient to construct, and is a horizontal-pulling pedestrian suspension bridge, thereby being very suitable for the construction conditions of suspension bridges in remote valley mountain areas.
The cylindrical net cable system pedestrian landscape suspension bridge also adopts a new price form of a horizontal pull type suspension bridge, the bridge deck structure is directly laid on the main cable suspension cable without a sling, the structure is simple, the vertical span ratio is 1/40-1/20, and the gradient of the bridge deck is gentle and suitable for tourists to walk; the single-leaf hyperbolic barrel-net structure is a variable cross-section structure, the lower quadrant point connecting line of the single-leaf hyperbolic barrel-net structure is hyperbolic, the single-leaf hyperbolic barrel-net structure presents a state of high middle and low two ends, and by considering the favorable factor, the gradient of the horizontal pull type pedestrian landscape suspension bridge of the barrel-net cable system is more gentle than that of the traditional horizontal pull type pedestrian suspension bridge, so that the requirement of the walking comfort level of tourists can be met.
The bottoms of the curved surface-shaped space truss type stiffening girder and the single-blade hyperboloid space cable are matched and matched, the space truss type stiffening girder adopts an elliptical arc section form, the appearance is attractive, a wood bridge deck structure or a toughened glass bridge deck is laid on the truss type stiffening girder, and tourists can stably walk on the pedestrian suspension bridge in the valley scenic region.
The bridge deck is made of transparent toughened glass bridge deck, visitors walk on the glass bridge deck to enjoy the scenery of canyons and thrill on the canyons when walking, the mysterious feeling of the nature is felt, the visitors walk in the air and step on the clouds, and the visitors roll the river water under the feet, so that the visitors are very shocking and thrilling.
The cylindrical net-shaped enclosure structure adopting the double-spiral steel wire stirrups replaces the traditional railing, and the use safety of the pedestrian landscape suspension bridge is improved.
The novel pedestrian suspension bridge tower adopts a structural form that curved double-limb pier columns support the huge oval steel ring, the meaning of the tower is that big power and huge spirit both hands hold up the sun, the structure is attractive, the stress is reasonable, the single-blade hyperboloid space cable is anchored on the huge oval steel ring, and the stress is reliable.
The geological conditions of the gorge scenic spot are excellent, the anchor foundation of the pedestrian suspension bridge can adopt a tunnel anchor structure form, the cost of the anchor foundation is low, and the horizontal pull type cylinder netted space cable system pedestrian landscape suspension bridge is suitable for being built in the gorge scenic spot.
Four suspension bridge back cables are arranged on the back of the huge oval steel ring and divided into two groups and are respectively anchored in two anchors, the huge oval steel ring and a double-limb pier column supporting structure are used as force transmission members, cable tension dispersed in a single-blade hyperbolic surface shape is converted into tension of the four suspension bridge back cables, torsion, bending internal force and deformation of a huge oval steel ring bridge tower structure are effectively controlled, and structural stress is reasonable.
The single-blade hyperbolic cylinder reticular space cable system, the double-limb bridge pier stud and the bridge deck system can be prefabricated in a factory to produce finished products, and are constructed in an assembly mode on a construction site to form the assembled flat-pull cylinder reticular pedestrian landscape suspension bridge, the whole is broken into parts, and the method has the technical advantages of industrial production.
By utilizing excellent geological conditions of a gorge scenic region, a tunnel type anchorage foundation structure can be conveniently constructed, then a curved double-limb bridge pier stud is constructed, a huge oval steel annular tower cap is installed to form a pedestrian landscape suspension bridge tower, a single-leaf double-curved-surface cylinder net-shaped space cable is installed in a hanging manner according to the construction technology of a horizontal pull type suspension bridge, a plurality of oval rigid stiffening rings are installed and fixed inside the cylinder net-shaped space cable, double-spiral steel wire stirrups are wound outside the cylinder net-shaped space cable, a single-leaf double-curved-surface truss bridge deck stiffening beam is installed, the transparent glass bridge deck is laid on the stiffening beam bridge deck, the double-helix vine grass is planted, and the sunlight is shielded, so that the flat-pull type pedestrian landscape suspension bridge of the cylindrical net-shaped cable system is formed, and the bridge has the advantages of beautiful shape, simple structure, ecological environmental protection, convenience in assembly type construction, high use safety, good wind resistance stability and the like.
Drawings
FIG. 1 is a three-dimensional schematic view of a large-span flat-pull cylinder mesh pedestrian landscape suspension bridge;
FIG. 2 is a partial three-dimensional schematic view at the mount of FIG. 1;
FIG. 3 is a three-dimensional schematic of the bridge tower structure of FIG. 1;
FIG. 4 is a partial three-dimensional schematic view of the drum network space cable system;
FIG. 5 is a schematic representation of a deck system of the space truss stiffening beam of FIG. 1;
FIG. 6 is a schematic diagram of the anchor foundation of FIG. 1;
the figure shows that: a suspension bridge tower 1; a curved double-limb pier stud 11; a giant oval steel annular tower cap 12; a cylindrical mesh space cable system 2; a single-sheet hyperboloid space cable net 21; an elliptical rigid stiffening ring 22; a double-spiral wire stirrup 23; a suspension bridge back stay 24, an anchorage 3; a bridge deck system 4; a space truss stiffener 41; a channel steel connector 42; a glass bridge deck 43; helical vine grass plant 5.
Detailed Description
The present invention will be further specifically described with reference to the accompanying drawings.
Example 1:
the invention relates to a large-span horizontal-pulling type cylindrical reticular landscape suspension bridge, which comprises a suspension bridge tower 1, a cylindrical reticular space cable system 2, an anchorage 3, a bridge deck system 4 and a spiral vine grass plant 5, and is characterized in that: the suspension bridge tower 1 consists of a curved double-limb bridge pier column 11 and a giant elliptic steel annular tower cap 12, wherein the giant elliptic steel annular tower cap 12 is fixed on the curved double-limb bridge pier column 11; the net-shaped space cable system 2 consists of a single-blade hyperboloid space cable net 21, oval rigid stiffening rings 22, double-spiral steel wire sieve ribs 23 and suspension bridge back guy cables 24, wherein the single-blade hyperboloid space cable net 21 is in a drooping single-blade hyperboloid cylinder net-shaped structure, the single-blade hyperboloid space cable net 21 is anchored on a giant oval steel annular tower cap 12, a plurality of oval rigid stiffening rings 22 are arranged inside the single-blade hyperboloid space cable net 21, the double-spiral steel wire hooping 23 consists of four space curves including a positive double spiral line and a negative double spiral line, the double-spiral steel wire hooping 23 is wound outside the single-blade hyperboloid space cable net 21, four suspension bridge back guy cables 24 are divided into a left group and a right group, one end of each suspension bridge back guy cable is anchored on the giant oval steel annular tower cap 12, and the other end of each suspension bridge back guy cable is anchored in an anchor 3; the bridge deck system 4 is arranged in the cylindrical net-shaped space cable system 2, pedestrians walk in the inner space of the cylindrical net-shaped space cable system 2, and the spiral vine grass plants 5 are wound outside the single-leaf hyperboloid space cable net 21 to shade sunlight.
The bridge deck system 4 is composed of a space truss type stiffening girder 41, a channel steel connecting piece 42 and a glass bridge deck 43, the space truss type stiffening girder 41 is placed at the bottom of the single-leaf hyperboloid space cable net 21, the channel steel connecting piece 42 is welded on a top steel pipe of the space truss type stiffening girder 41, a plane steel frame formed by the channel steel connecting piece 42 is embedded with the glass bridge deck 43 in the plane steel frame.
Example 2:
the invention relates to a construction method of a large-span flat-pull cylindrical mesh pedestrian landscape suspension bridge, which comprises the following steps of:
the first step is as follows: according to the requirements of geological topography and landform conditions of a gorge scenic area, selecting a bridge site of a pedestrian landscape suspension bridge, constructing an anchorage 3, constructing a curved double-limb bridge pier stud 11, and installing a giant elliptic steel annular tower cap 12 to form a suspension bridge tower 1;
the second step is that: installing a suspension bridge back stay cable 24, drawing a steel wire cable to pass through a river, forming a single-leaf hyperboloid space cable net 21 by spatial crossing of a plurality of steel wire cables, anchoring the single-leaf hyperboloid space cable net 21 on a giant elliptic steel annular tower cap 12, installing a plurality of elliptic rigid stiffening rings 22 inside the single-leaf hyperboloid space cable net 21, and winding double-spiral steel wire stirrups 23 in the positive and negative directions outside the single-leaf hyperboloid space cable net 21 to form a cylindrical net-shaped space cable system 2;
the third step: the steel pipes are welded to form a space truss type stiffening girder 41, the space truss type stiffening girder 41 is placed at the bottom of the single-leaf hyperboloid space cable net 21, the channel steel connecting piece 42 is welded to form a plane steel frame on the steel pipes on the top surface of the space truss type stiffening girder 41, and a glass bridge deck 43 is embedded in the plane steel frame to form a bridge deck system 4;
the fourth step: planting vine grass, winding the spiral vine grass plant 5 outside the single-leaf hyperboloid space cable net 21 to shield sunlight;
the fifth step: and installing handrails and colored lamps to build a horizontal pulling type pedestrian landscape glass suspension bridge of the cylindrical mesh space cable system, and receiving tourists for operation and use.
Example 3:
the glass suspension bridge for landscape of Tibet Yalu Tibet Blujiang has a main span of 200m, and in order to meet the requirements of view and use safety in gorge scenic region and inherit the characteristics of the bridge of Tibet Mexico vine, a structural scheme of a large-span horizontal pull type cylindrical mesh landscape suspension bridge is adopted
The suspension bridge tower is composed of curved double-limb bridge pier columns and huge oval steel circular tower caps, the meaning is that a huge holds up the sun, the bridge tower adopts a pile foundation, the highest position of the bridge tower is 25 meters, the curved double-limb bridge pier columns adopt two 1.4 meters multiplied by 1.4 meters steel pipe concrete columns, two connecting beams are arranged between the curved double-limb bridge pier columns, the huge oval steel circular tower caps are in vertical oval shape, the oval height is 10 meters, the oval width is 8 meters, and the oval steel circular tower caps adopt 1.0 meters multiplied by 1.0 meters steel pipe concrete circular structures.
The cylindrical mesh space cable system consists of single-blade hyperboloid space cables, oval rigid stiffening rings, double-spiral steel wire stirrups and suspension bridge back guy cables, the single-blade hyperboloid space cables are 24 cables which are rotated in the positive and negative directions, the space cables are arranged according to the Peng-color triangle closure theorem, the diameter of each cable is 0.2m high-strength steel wire cable, 2000MPa high-strength steel wires with the diameter of 5.2mm are adopted, and the cable intersections are fixed by special clamps.
The inside setting of single-leaf hyperboloid space cable has oval rigid stiffening ring, and the interannular distance is 10 meters, 20 in total, adopts hollow steel pipe preparation, and the diameter 300mm wall thickness 12mm steel pipe line type that changes from striding the department to the diameter 400mm wall thickness 16mm steel pipe of support department, oval rigid stiffening ring adopts special connector to connect with single-leaf hyperboloid space cable.
The double-helix steel wire stirrups in the positive and negative directions are wound outside the single-blade hyperboloid space cable, four steel wire stirrups are crossed at four quadrant points up and down, left and right, and each strand of steel strand with the diameter of 15.2mm is wound on the single-blade hyperboloid space cable. Four suspension bridge back stay cables are arranged on one bridge tower and are divided into a left group and a right group, each cable is a high-strength steel wire cable with the diameter of 0.3m, high-strength steel wires with the diameter of 5.2mm are adopted at 2000MPa, and the four suspension bridge back stay cables are arranged in a dispersed mode, so that the torsion, bending internal force and deformation of the giant elliptic steel ring bridge tower structure can be effectively controlled.
The single-blade hyperboloid hollow cable, the internal elliptical rigid stiffening ring and the double-helix steel wire hoop form a cylindrical net-shaped space cable system suspension bridge, and the three work cooperatively, so that the single-blade hyperboloid hollow cable, the internal elliptical rigid stiffening ring and the double-helix steel wire hoop have good torsional rigidity, and the wind resistance stability of the cable system suspension bridge can be greatly improved.
The bridge floor system is by space truss-like stiffening girder, channel-section steel connecting piece and glass decking are constituteed, space truss-like stiffening girder adopts the preparation of hollow steel pipe, space truss-like stiffening girder adopts the oval-shaped section, space truss-like stiffening girder's lower part oval-shaped steel pipe diameter is the same with oval rigid stiffening ring steel pipe diameter, all the other chords are the 8mm steel pipes of diameter 300mm wall thickness, the web member is the 6mm steel pipe of diameter 200mm wall thickness, space truss-like stiffening girder shelves on single-leaf hyperboloid space cable, the bottom curved surface of space truss-like stiffening girder coincide with the bottom curved surface of single-leaf hyperboloid space cable.
At the bridge surface of the space truss type stiffening beam, a channel steel connecting piece is welded on a steel pipe at the top surface of the space truss type stiffening beam, the channel steel connecting piece adopts 25-number channel steel, a glass bridge deck is embedded in a steel frame formed by the channel steel connecting piece, visitors walk on the glass bridge surface, and the water below the feet is tauto be shocked and stimulated.
Vine grass is planted on both banks, and the heliciform vine grass plant grows along the double helix steel wire stirrup in positive and negative two directions, shields sunshine, promotes the view effect, looks ahead far away, and the landscape is as drawing, and beautiful, ecological bridge increases the humanistic connotation in gorge scenic spot.
The method comprises the following steps of installing metal railings, hanging a safety net, installing LED colored lamps, building a bridgehead landscape platform, forming a horizontal pulling type pedestrian landscape glass suspension bridge of a cylindrical net-shaped space cable system, and using the bridge.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (3)
1. The utility model provides a long span parallel pull formula section of thick bamboo reticulation view of walking suspension bridge, includes suspension bridge pylon (1), a section of thick bamboo reticulation space cable system (2) and heliciform tendril grass plant (5), its characterized in that: the suspension bridge tower (1) consists of a curved double-limb bridge pier column (11) and a giant elliptical steel annular tower cap (12), wherein the giant elliptical steel annular tower cap (12) is fixed on the curved double-limb bridge pier column (11); the cylindrical net-shaped space cable system (2) consists of a single-blade hyperboloid space cable net (21), oval rigid stiffening rings (22), double-spiral steel wire stirrups (23) and suspension bridge back cables (24), the single-blade hyperboloid space cable net (21) is of a drooping single-blade hyperboloid cylindrical net-shaped structure, the single-blade hyperboloid space cable net (21) is anchored on a giant elliptic steel circular tower cap (12), a plurality of oval rigid stiffening rings (22) are arranged inside the single-blade hyperboloid space cable net (21), the double-spiral steel wire stirrups (23) consist of four space curves including a positive double spiral line and a negative double spiral line, the double-spiral steel wire stirrups (23) are wound outside the single-blade hyperboloid space cable net (21), the suspension bridge back cables (24) are divided into a left group and a right group, one end of each group is anchored on the giant elliptic steel circular tower cap (12), one end is anchored in the anchorage (3); the bridge deck system (4) is arranged in the cylindrical net-shaped space cable system (2), pedestrians walk in the inner space of the cylindrical net-shaped space cable system (2), and the spiral vine grass plants (5) are wound outside the single-leaf hyperboloid space cable net (21) to shade sunlight.
2. The large-span horizontal pulling type cylinder mesh pedestrian landscape suspension bridge of claim 1, which is characterized in that: the bridge deck system (4) comprises a space truss type stiffening girder (41), channel steel connecting pieces (42) and glass bridge decks (43), wherein the space truss type stiffening girder (41) is placed at the bottom of the single-leaf hyperboloid space cable net (21), the channel steel connecting pieces (42) are welded on top steel pipes of the space truss type stiffening girder (41), a plane steel frame formed by the channel steel connecting pieces (42) is embedded with the glass bridge decks (43) in the plane steel frame.
3. A construction method for constructing the large-span horizontal-pulling type cylinder network manned landscape suspension bridge according to claim 1, which is characterized by comprising the following steps:
the first step is as follows: according to the requirements of geological topography and landform conditions of a gorge scenic area, selecting a bridge site of a pedestrian landscape suspension bridge, constructing an anchorage (3), constructing a curved double-limb bridge pier column (11), and installing a giant oval steel annular tower cap (12) to form a suspension bridge tower (1);
the second step is that: installing a suspension bridge back stay cable (24), drawing a steel wire cable to cross a river, enabling a plurality of steel wire cables to form a single-blade hyperboloid space cable net (21) in a spatial crossing mode, anchoring the single-blade hyperboloid space cable net (21) on a giant elliptic steel circular tower cap (12), installing a plurality of elliptic rigid stiffening rings (22) inside the single-blade hyperboloid space cable net (21), and winding steel wire double-spiral stirrups (23) in the positive and negative directions outside the single-blade hyperboloid space cable net (21) to form a cylindrical net-shaped space cable system (2);
the third step: welding steel pipes to form a space truss type stiffening girder (41), placing the space truss type stiffening girder (41) at the bottom of the single-leaf hyperboloid space cable net (21), welding channel steel connecting pieces (42) to form a plane steel frame on top steel pipes of the space truss type stiffening girder (41), and embedding a glass bridge deck (43) in the plane steel frame to form a bridge deck system (4);
the fourth step: planting vine vines, wherein spiral vine grass plants (5) are wound outside a single-leaf hyperboloid space cable net (21) to shield sunlight;
the fifth step: and installing handrails and colored lamps to build a horizontal pulling type pedestrian landscape glass suspension bridge of the cylindrical mesh space cable system, and receiving tourists for operation and use.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110640057.8A CN113202011A (en) | 2021-06-09 | 2021-06-09 | Large-span horizontal pull type cylindrical reticular pedestrian landscape suspension bridge and construction method thereof |
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| CN202110640057.8A CN113202011A (en) | 2021-06-09 | 2021-06-09 | Large-span horizontal pull type cylindrical reticular pedestrian landscape suspension bridge and construction method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622283A (en) * | 2021-08-24 | 2021-11-09 | 江苏中路工程技术研究院有限公司 | Horizontal pulling type pedestrian suspension bridge with hyperbolic paraboloid space crossed cable nets |
| CN114395981A (en) * | 2021-12-24 | 2022-04-26 | 湖南省中南桥梁安装工程有限公司 | Aerial facility combined by steel cable and building structure |
-
2021
- 2021-06-09 CN CN202110640057.8A patent/CN113202011A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622283A (en) * | 2021-08-24 | 2021-11-09 | 江苏中路工程技术研究院有限公司 | Horizontal pulling type pedestrian suspension bridge with hyperbolic paraboloid space crossed cable nets |
| CN113622283B (en) * | 2021-08-24 | 2022-11-22 | 江苏中路工程技术研究院有限公司 | Horizontal pulling type pedestrian suspension bridge with hyperbolic paraboloid space crossed cable nets |
| CN114395981A (en) * | 2021-12-24 | 2022-04-26 | 湖南省中南桥梁安装工程有限公司 | Aerial facility combined by steel cable and building structure |
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