CN217810459U - Three-fork-shaped single main cable pedestrian suspension bridge - Google Patents
Three-fork-shaped single main cable pedestrian suspension bridge Download PDFInfo
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- CN217810459U CN217810459U CN202122405674.8U CN202122405674U CN217810459U CN 217810459 U CN217810459 U CN 217810459U CN 202122405674 U CN202122405674 U CN 202122405674U CN 217810459 U CN217810459 U CN 217810459U
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Abstract
The three-fork-shaped single main cable is hung on three single-column pylons which are arranged in a triangular mode, a sling system consisting of herringbone slings, three-foot-shaped slings and a central vertical sling is arranged on the three-fork-shaped single main cable, the sling system is hung on a three-fork-shaped bridge deck stiffening beam with a central ring, the three-fork-shaped stiffening beam consists of an outer three-fork-shaped stiffening beam with a ring, a central annular stiffening beam and an inner three-fork-shaped stiffening beam with a ring, and the foundation beam is placed on the edge of a three-fork canyon cliff. The herringbone sling suspends the outer three-fork-shaped stiffening beam and the central annular additional beam of the circular ring, and at the central position of the bridge, the central annular additional beam of the three-legged sling suspension point and the three-fork-shaped stiffening beam in the circular ring intersect, and the central vertical sling suspends the central position of the three-fork-shaped stiffening beam in the circular ring. The three-branch-shaped single main cable and the three-branch-shaped bridge deck stiffening girder are both in stable triangular structural forms, the structural space rigidity of the three-branch-shaped suspension bridge is greatly improved, and the three-branch-shaped single main cable pedestrian suspension bridge has the advantages of attractive appearance, field saving, convenience and high economical efficiency in construction.
Description
Technical Field
The utility model belongs to the civil engineering field relates to a suspension bridge structure's technique, especially relates to a three-forked shape single main push-towing rope bridge.
Background
The river breeds human civilization, is an artery of the earth, is closely related to the life of human beings, and is populated by human beings one by one, the climate of the area close to the river is mild, the rainwater resource is rich, five cereals are plentiful, the popularity is wide, and the aggregation effect is larger and larger due to the inhabitation of the river area.
The three-branch river zone of the river intersection is pleasant in environment and more popular among people, the geographical position of the three-branch river zone is more and more important, more three-branch river zones become new local development zones, and more three-branch river zones become hot tourist attractions.
The great canyon of the three provinces of the Yunnan, the Sichuan and the Guizhou are positioned at the intersection of the Chishui river and the Weihe river, and the three provinces of the Yunnan and the Guizhou are named as 'one chicken singing, and the three provinces sing neatly'.
The three-branch bridge is built in the region of the three-branch river, one bridge is communicated with three banks, the traffic is fast, and the three-branch bridge can be naturally ironed in the natural environment.
The three-branch bridge is usually not suitable for arranging piers in the center of a river, so that certain technical difficulty is caused in constructing the three-branch bridge, and at present, the number of the built three-branch bridges at home and abroad is small, and the span is small.
The three-branch bridge with the beam structure has small spanning capacity, low bearing capacity and backward construction technology; the construction of the arch-type three-branch bridge is difficult, and the structure of the three arch ribs at the convergence position of the center of the arch top is complex; the cable-stayed three-branch bridge has high manufacturing cost, the three-branch cable-stayed bridge has to be provided with an approach bridge, the approach bridge occupies large area, the approach bridge influences the plane layout of a canyon scenic spot, and the stay cable pulls the inner ring of the central circular ring of the bridge floor, so that the stay cable seriously influences the bridge floor clearance at the central circular inner ring.
With the development of the scenic spot tourism industry of the canyon, the scenic spot tourism industry has an increasing demand for building the three-branch-shaped pedestrian bridge in the gorge scenic spot, so a new technology for building the ultra-large-span pedestrian three-branch bridge is urgently needed in the civil engineering field.
SUMMERY OF THE UTILITY MODEL
The technical problem is as follows: the three-forked single main cable pedestrian suspension bridge is attractive in shape, saves space, is convenient to construct and good in economy, three single-column pylons suspend the three-forked single main cables, the three-forked single main cables are provided with sling systems, bridge deck system stiffening girders with central circular rings are suspended by the sling systems, and the bridge deck system stiffening girders are placed at the edge of a cliff of the three-forked river canyons to form the three-forked canyon scenic region pedestrian suspension bridge.
The technical scheme is as follows: the utility model discloses a single main push-towing rope bridge of three-branch shape, including single-column pylon, the single main push-towing rope of three-branch shape, back of the body cable, anchorage, hoist cable system, three-branch shape bridge floor stiffening beam, foundation beam and decking that have central ring, its characterized in that: the three single-column bridge towers are arranged in a triangular mode, a three-fork-shaped single main cable is hung on the three single-column bridge towers, one end of a splayed back guy cable is anchored on the single-column bridge towers, the other end of the back guy cable is anchored in a tunnel type anchor, a sling system is arranged on the three-fork-shaped single main cable, and the sling system suspends a three-fork-shaped bridge deck stiffening beam with a central member ring; the three-fork-shaped bridge deck stiffening beam with the central ring consists of a three-fork-shaped stiffening beam outside the ring, a central annular stiffening beam and a three-fork-shaped stiffening beam inside the ring, the sling system consists of a herringbone sling, a three-foot sling and a central vertical sling, the herringbone sling suspends the three-fork-shaped stiffening beam outside the ring and the central annular stiffening beam, the upper hoisting point of the three-foot sling is converged at the midspan position of the three-fork-shaped single main cable, the lower hoisting point of the three-foot sling is dispersed at the three intersection points of the central annular stiffening beam and the three-fork-shaped stiffening beam inside the ring, and the central vertical sling suspends at the central position of the three-fork-shaped stiffening beam inside the ring; three ends of a three-fork-shaped bridge deck stiffening girder with a central circular ring are provided with foundation girders, and the foundation girders are placed on the edge of a cliff of a three-fork river canyon terrain; a bridge deck is arranged on the three-fork-shaped bridge deck stiffening girder with the central circular ring.
Preferably, the central lines of the three beams of the inner-ring three-fork stiffening beam and the central lines of the three bridge decks of the outer-ring three-fork stiffening beam are linearly aligned, and the directions of the three beams of the inner-ring three-fork stiffening beam and the directions of the three bridge decks of the outer-ring three-fork stiffening beam are arranged oppositely relative to the center of the central annular stiffening beam.
A construction method of a three-fork-shaped single-main-cable pedestrian suspension bridge is characterized by comprising the following steps: the method comprises the following steps:
the first step is as follows: according to geological topography and landform conditions, selecting bridge sites of a pedestrian suspension bridge in a gorge scenic area of a three-branch river, constructing three single-column bridge towers and anchorages, and constructing foundation beams;
the second step is that: carrying out installation construction of the three-forked single main cable and the backstay cable;
the third step: installing herringbone slings, three-legged slings and a central vertical sling to form a sling system 5;
the fourth step: constructing and installing the central circular stiffening beam and the circular inner three-forked stiffening beam;
the fifth step: constructing and installing the three-fork-shaped stiffening beam outside the circular ring to form the three-fork-shaped bridge deck stiffening beam with the central circular ring;
and a sixth step: and paving the bridge deck to form the three-fork-shaped single-main-cable pedestrian suspension bridge for operation.
The three-branch-shaped single main cable suspension bridge has unique shape and beautiful shape; the three-fork-shaped single main cable and the three-fork-shaped bridge deck stiffening beam are in stable triangular structural forms, and the spatial rigidity of the three-fork-shaped suspension bridge structure can be greatly improved.
Has the advantages that: compared with the prior art, the utility model, have following advantage:
aiming at the canyon terrain of the three-forked river, three single-column bridge towers are adopted to suspend a three-forked single main cable, a sling system is arranged above the three-forked single main cable, a three-forked bridge deck stiffening beam with a central circular ring is suspended by the sling system, and a foundation beam is placed at the edge of a three-forked canyon cliff to form the three-forked single main cable pedestrian suspension bridge.
Compared with a three-branch bridge beam structure, the three-branch beam bridge has small spanning capacity, low bearing capacity and laggard construction technology; the three-fork-shaped single-main-cable suspension bridge has the advantages of large spanning capacity, high bearing capacity and advanced construction technology.
Compared with a three-branch arch bridge structure, the three-branch arch bridge is difficult to construct, and the structure at the central convergence part of the arch tops of the three arch ribs is complex; the three-branch-shaped single main cable suspension bridge is simple and convenient to construct, and the structure of the three-branch-shaped single main cable is simple.
Compare in three fork bridge cable-stayed structure, three fork shape's cable-stayed bridge must have the approach bridge, and approach bridge area is big, and the approach bridge has influenced the plane overall arrangement of canyon scenic spot, and the inner circle of bridge floor central ring is dragged to the suspension cable, and the suspension cable seriously influences central ring department bridge floor headroom.
The three-fork-shaped single-main-cable suspension bridge is a single-span suspension bridge, the plane layout of a canyon scenic region cannot be influenced without bridge approach, the three-fork-shaped single main cable suspends a bridge deck stiffening beam with a central ring, traffic organization is smooth, a sling suspends the inner ring of the central ring of the bridge deck, and the sling cannot influence bridge deck clearance at the bridge deck of the central ring.
The three-branch cable-stayed bridge has higher manufacturing cost, and the bridge approach of the cable-stayed bridge additionally increases the manufacturing cost; the three-fork-shaped single-main-cable suspension bridge is a single-span suspension bridge and is simple in structure, the bridge deck system stiffening girder is placed on the edge of a cliff of a three-fork river canyon, the three-fork-shaped single-main-cable suspension bridge avoids the bridge approach cost, and the cost of the three-fork-shaped single-main-cable suspension bridge is low.
The main stressed components of the three-branch-shaped single main cable suspension bridge are three single-column bridge towers and three-branch-shaped single main cables, the structure is simple, and the upper structure is convenient to construct. The gorge scenic spot has good geological quality, and the tunnel type anchorage is convenient to construct.
The three-branch-shaped single-main-cable suspension bridge adopts an assembled structure, can be industrially produced, and can be industrially produced.
The three-branch-shaped single-main-cable suspension bridge adopts the bridge deck system stiffening beam with the central circular ring, the three-branch-shaped single-main-cable suspension bridge is attractive in shape and smooth in traffic organization, and the central circular ring sightseeing platform facilitates tourists to appreciate scene in canyon scenic spots.
The bridge deck system stiffening girder of the three-fork-shaped single main cable suspension bridge is a single span suspension bridge, and the three-fork-shaped bridge deck system stiffening girder is placed at the edge of a cliff of a three-fork river canyon, so that the situation of a canyon scenic spot platform is not influenced, and the site area resources of the canyon scenic spot platform can be fully utilized.
The three-fork-shaped single main cable and the three-fork-shaped bridge deck stiffening girder are both in a stable triangular structure form, the torsional rigidity of the three-fork-shaped bridge deck stiffening girder with the central circular ring is high, the three-fork-shaped single main cable provides horizontal component force, the lateral rigidity of the three-fork-shaped single main cable suspension bridge is high, and the three-fork-shaped single main cable suspension bridge has good space integrity and good wind resistance.
The traditional suspension bridge is reformed aiming at the three-branch river canyon terrain, the suspension bridge cable is upgraded and transformed into three-branch space cable arrangement, and the three-branch single main cable pedestrian suspension bridge has the advantages of attractive shape, convenience and quickness in construction, field saving and good economy, is suitable for the 200-300 m oversized span-span three-branch canyon scenic spot bridge, and has good application prospect.
Drawings
FIG. 1 is a three-dimensional schematic view of a three-forked single main cable pedestrian suspension bridge;
FIG. 2 is a three-dimensional schematic view of the sling system of FIG. 1;
FIG. 3 is a three-dimensional schematic view of the trifurcated deck stiffener with a central ring of FIG. 1.
The figure shows that: a single column bridge tower 1; a three-branch-shaped single main cable 2; a backstay 3; an anchorage 4; a sling system 5; a herringbone sling 51, a tripod sling 52, a central vertical sling 53, and a three-fork-shaped deck stiffening beam 6 with a central ring; a circular outer three-forked stiffening beam 61; a central annular stiffening beam 62; a circular inner three-forked stiffening beam 63; foundation beam 7, bridge deck 8.
Detailed Description
The present invention will be further specifically described with reference to the drawings.
Example 1:
the utility model discloses a single main push-towing suspension bridge of three forked shape, including single-column pylon 1, single main push-towing rope 2 of three forked shape, back of the body guy cable 3, anchorage 4, hoist cable system 5, three forked shape bridge floor stiffening beam 6, foundation beam 7 and decking 8 that have central ring, characterized in that: the three single-column bridge towers 1 are three in total, the positions of the three single-column bridge towers 1 are arranged in a triangular mode, a three-fork-shaped single main cable 2 is hung on the three single-column bridge towers 1, one end of a splayed back pull cable 3 is anchored on the single-column bridge towers 1, the other end of the back pull cable 3 is anchored in a tunnel type anchor 4, a sling system 5 is arranged on the three-fork-shaped single main cable 2, and a three-fork-shaped bridge deck stiffening beam 6 with a central circular ring is suspended by the sling system 5; the three-fork-shaped bridge deck stiffening beam 6 with the central circular ring consists of an outer three-fork-shaped stiffening beam 61, a central circular ring-shaped stiffening beam 62 and an inner three-fork-shaped stiffening beam 63, the sling system 5 consists of a herringbone sling 51, a three-foot-shaped sling 52 and a central vertical sling 53, the outer three-fork-shaped stiffening beam 61 and the central circular ring-shaped stiffening beam 62 are suspended by the herringbone sling 51, the upper hoisting point of the three-foot-shaped sling 52 is converged at the midspan position of the three-fork-shaped single main cable 2, the lower hoisting point of the three-foot-shaped sling 52 is dispersed at three intersection points of the central circular ring-shaped stiffening beam 62 and the inner three-fork-shaped stiffening beam 63, and the central vertical sling 53 is suspended at the central position of the three-fork-shaped stiffening beam 63 in the circular ring; three ends of a three-fork-shaped bridge deck stiffening girder 6 with a central circular ring are provided with foundation girders 7, and the foundation girders 7 are placed at the edge of a cliff of the three-fork river canyon terrain; a bridge deck 8 is arranged on the three-forked bridge deck stiffening beam 6 with the central circular ring.
The central lines of the three beams of the annular inner three-fork stiffening beam 63 and the central lines of the three bridge decks of the annular outer three-fork stiffening beam 61 are linearly aligned, and the directions of the three beams of the annular inner three-fork stiffening beam 63 and the directions of the three bridge decks of the annular outer three-fork stiffening beam 61 are opposite relative to the circle center of the central annular stiffening beam 62.
Example 2:
the utility model discloses a construction method of three forked shape single main push-towing rope bridge, characterized in that: the method comprises the following steps: the first step is as follows: according to geological topography and landform conditions, selecting bridge sites of a pedestrian suspension bridge in a three-branch river canyon scenic region, constructing three single-column bridge towers 1 and anchorages 4, and constructing a foundation beam 7;
the second step is that: carrying out installation construction of the three-forked single main cable 2 and the back guy cable 3;
the third step: installing herringbone slings 51, three-legged slings 52 and a central vertical sling 53 to form a sling system 5;
the fourth step: constructing and installing the central circular stiffening beam 62 and the circular inner three-forked stiffening beam 63;
the fifth step: and (3) carrying out construction and installation of the three-fork-shaped stiffening beam 61 outside the circular ring to form the three-fork-shaped bridge deck stiffening beam 6 with the central circular ring:
and a sixth step: and paving the bridge deck 8 to form the three-fork-shaped single-main-cable pedestrian suspension bridge for operation.
Example 3:
a three-branch-shaped single main cable pedestrian suspension bridge is adopted for economy and field space saving.
The three-fork-shaped single-main-cable pedestrian suspension bridge in the three-season singing is a single-span suspension bridge without an approach bridge, so that the field space is saved, the span of the suspension bridge is 200m, the width of the bridge deck of a three-fork-shaped passage is 6m, and the width of the bridge deck at the position of a central circular ring is 4m.
The three single-column bridge towers are in artificial huge tree shapes, the single-column bridge towers are unique in shapes, the single-column bridge towers are in a concrete filled steel tube column structure form, solar artificial leaves are installed at the tops of the concrete filled steel tube single columns, the diameters of the concrete filled steel tube single columns are 4-6 m, and the wall thicknesses of the steel tube columns are 16-25 mm.
The three-fork-shaped single main cable adopts 2000MPa high-strength steel wire cables, the diameter of the three-fork-shaped single main cable is 0.2m, the three-fork-shaped single main cable is suspended on a triangular single-column bridge tower, and the vector-span ratio of the three-fork-shaped single main cable is 1/10.
One end of a splayed back guy cable is anchored on the single-column bridge tower, the other end of the back guy cable is anchored in the tunnel type anchorage, the back guy cable adopts a 2000MPa high-strength steel wire cable, and the diameter of the back guy cable is 0.16m.
On the single main cable of trident shape, install the hoist cable system of compriseing chevron shape hoist cable, tripod form hoist cable and central vertical hoist cable, the hoist cable adopts 1670MPa high strength steel wire cable, chevron shape hoist cable interval 10m, chevron shape hoist cable diameter is 40mm, a set of three of tripod form hoist cable, tripod form hoist cable diameter is 60mm, 1 of central vertical hoist cable, central vertical hoist cable diameter is 50mm.
The three-fork shaped bridge deck stiffening beam with the central circular ring consists of a circular ring outer three-fork shaped stiffening beam, a central circular ring shaped stiffening beam and a circular ring inner three-fork shaped stiffening beam, wherein the stiffening beam adopts a main and secondary beam grid structure form.
The outer three-fork shaped stiffening girder of the circular ring adopts a passageway beam lattice form, the main girder adopts a rectangular steel pipe with the thickness of 300 multiplied by 700mm, the wall thickness of the steel pipe is 12mm, the secondary girder adopts a rectangular steel pipe with the thickness of 200 multiplied by 500mm, and the wall thickness of the steel pipe is 6mm.
The central circular additional beam adopts a circular ground passageway beam grid form, the inner and outer circular main beams adopt rectangular steel tubes with the thickness of 300 multiplied by 700mm, the wall thickness of the steel tubes is 12mm, the secondary beams adopt rectangular steel tubes with the thickness of 200 multiplied by 400mm, and the wall thickness of the steel tubes is 5mm.
The inner three-fork stiffening beam of the ring is composed of three rectangular steel pipe beams with phase difference of 120 degrees, the three rectangular steel pipe beams are rectangular steel pipes with the diameter of 300 multiplied by 700mm, the wall thickness of the steel pipes is 14mm, the inner three-fork stiffening beam of the ring extends to overhang the outer ring beam of the central annular stiffening beam, a central cake-shaped connecting piece is arranged at the internal intersection of the inner three-fork stiffening beam of the ring, and the central cake-shaped connecting piece is manufactured by factory casting.
A closed arc beam is arranged at the turning part of the three-fork-shaped bridge deck stiffening beam, the closed arc beam is a rectangular steel pipe with the thickness of 100 multiplied by 300mm, and the wall thickness of the steel pipe is 4mm.
The herringbone sling suspension circular ring outer three-branch-shaped stiffening beam and the central circular ring-shaped stiffening beam, the upper hoisting points of the three-foot sling are converged at the midspan position of the three-branch-shaped single main cable, the lower hoisting points of the three-foot sling are dispersed at the three intersection points of the central circular ring-shaped stiffening beam and the circular ring inner three-branch-shaped stiffening beam, and the central vertical sling is suspended at the central position of the three-branch-shaped stiffening beam in the circular ring
The foundation beam is placed at the edge of a cliff of the three-fork river canyon terrain, the foundation beam is in a reinforced concrete ground beam form, the reinforced concrete ground beam is 600 multiplied by 1200mm, reinforcing steel bars are arranged inside the foundation beam, and the reinforced concrete ground beam is in a pile foundation.
The bridge deck is arranged on the three-fork-shaped bridge deck stiffening beam, the bridge deck is made of toughened transparent glass bridge deck plates, the thickness of glass is 20mm, and tourists walk on the glass bridge deck plates to draw the scenery in the gorge scenic spot.
And installing a metal railing and installing an LED colored lamp to form a canyon scenic region pedestrian suspension bridge for operation and use.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (2)
1. The utility model provides a three-fork shape single main push-towing suspension bridge, includes three-fork shape single main push-towing rope (2), hoist cable system (5) and three-fork shape bridge floor stiffening beam (6) that have central ring, its characterized in that: the three single-column bridge towers (1) are arranged in a triangular mode, the three single-column bridge towers (1) are hung on the three single-column bridge towers (1), one end of a splayed back pull rope (3) is anchored on the single-column bridge towers (1), the other end of the back pull rope (3) is anchored in a tunnel type anchor (4), a sling system (5) is arranged on the three single-column main rope (2), and the sling system (5) is provided with a three-branch-shaped bridge deck stiffening beam (6) with a central circular ring in a hanging mode; the three-fork-shaped bridge deck stiffening beam (6) with the central circular ring consists of a circular ring outer three-fork-shaped stiffening beam (61), a central circular ring-shaped stiffening beam (62) and a circular ring inner three-fork-shaped stiffening beam (63), the sling system (5) consists of a herringbone sling (51), a three-foot-shaped sling (52) and a central vertical sling (53), the herringbone sling (51) suspends the circular ring outer three-fork-shaped stiffening beam (61) and the central circular ring-shaped stiffening beam (62), the upper lifting point of the three-foot-shaped sling (52) is converged at the midspan position of the three-fork-shaped single main cable (2), the lower lifting point of the three-foot-shaped sling (52) is dispersed at the intersection of the central circular ring-shaped stiffening beam (62) and the circular ring inner three-fork-shaped stiffening beam (63), and the central vertical sling (53) is suspended at the central position of the circular ring inner three-fork-shaped stiffening beam (63); three ends of a three-fork-shaped bridge deck stiffening girder (6) with a central circular ring are provided with foundation girders (7), and the foundation girders (7) are placed on the edge of a cliff of the three-fork river canyon terrain; a bridge deck (8) is arranged on the three-fork-shaped bridge deck stiffening girder (6) with the central circular ring.
2. The triple-point single main cable pedestrian suspension bridge according to claim 1, wherein: the central lines of the three beams of the inner-ring three-forked stiffening beam (63) and the central lines of the three bridge floors of the outer-ring three-forked stiffening beam (61) are linearly aligned, and the directions of the three beams of the inner-ring three-forked stiffening beam (63) and the directions of the three bridge floors of the outer-ring three-forked stiffening beam (61) are arranged in opposite directions relative to the center of the central circular ring beam (62).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122405674.8U CN217810459U (en) | 2021-10-08 | 2021-10-08 | Three-fork-shaped single main cable pedestrian suspension bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122405674.8U CN217810459U (en) | 2021-10-08 | 2021-10-08 | Three-fork-shaped single main cable pedestrian suspension bridge |
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| CN217810459U true CN217810459U (en) | 2022-11-15 |
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| CN202122405674.8U Withdrawn - After Issue CN217810459U (en) | 2021-10-08 | 2021-10-08 | Three-fork-shaped single main cable pedestrian suspension bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897849A (en) * | 2021-10-08 | 2022-01-07 | 张家港保税区金港建设工程质量检测有限公司 | Three-branch-shaped single main cable pedestrian suspension bridge and construction method thereof |
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2021
- 2021-10-08 CN CN202122405674.8U patent/CN217810459U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897849A (en) * | 2021-10-08 | 2022-01-07 | 张家港保税区金港建设工程质量检测有限公司 | Three-branch-shaped single main cable pedestrian suspension bridge and construction method thereof |
| CN113897849B (en) * | 2021-10-08 | 2024-06-11 | 张家港保税区金港建设工程质量检测有限公司 | Three-fork single main cable pedestrian suspension bridge and construction method thereof |
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