CN103088750A - Especial-big span suspension bridge of uniparted hyperboloid space rope net main cable and construction method thereof - Google Patents
Especial-big span suspension bridge of uniparted hyperboloid space rope net main cable and construction method thereof Download PDFInfo
- Publication number
- CN103088750A CN103088750A CN2013100276229A CN201310027622A CN103088750A CN 103088750 A CN103088750 A CN 103088750A CN 2013100276229 A CN2013100276229 A CN 2013100276229A CN 201310027622 A CN201310027622 A CN 201310027622A CN 103088750 A CN103088750 A CN 103088750A
- Authority
- CN
- China
- Prior art keywords
- cable
- suspension bridge
- bridge
- steel
- hyperboloid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides an especial-big span suspension bridge of a uniparted hyperboloid space rope net main cable and a construction method thereof. A straight line character of the uniparted hyperboloid is used to change a vertical parallel cable rope system of an original suspension bridge. A thick and heavy centralized cable rope is changed into a dispersive space steel wire cable rope. Multiple strand of steel wire cable ropes are arranged in a cross mode. Space rope net main cable-cross nodes are fixed to form a space cable rope system of the uniparted hyperboloid type. An oval steel strengthening ring beam is arranged. A suspender and a stiffening beam are installed. A gate-type rigidity middle buckle is arranged. The especial-big span suspension bridge of the uniparted hyperboloid space rope net main cable system is built. The especial-big span suspension bridge of the uniparted hyperboloid space rope net main cable system has the advantages of being strong in span capacity, large in space structure rigidity, high in screw frequency ratio, good in wind resistance stability and the like. The novel space main cable system suspension bridge is capable of radically saving the problem of the wind resistance stability of the big span suspension bridge and used for projects of a striding sea connected island. The especial-big span channel suspension bridge of 3000-5000 meters is built.
Description
Technical field
The invention belongs to field of civil engineering, relate to a kind of building technology of large-span suspension bridge, relate in particular to a kind of large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable.
Background technology
Suspension bridge is the strongest bridge type of span ability in the world, and 1000 meters bridges with upper span are all suspension bridge basically.1998, Japan built up the alum straits suspension bridge across 1991 meters, footpath, world rankings first.2009, China built up west, the Zhoushan watchtower in ancient times door suspension bridge across 1650 meters, footpath, world rankings second.2010,11,700,000,000 dollars of Italian government plan costs were built the main span footpath and are the Messina straits suspension bridge of 3300 meters, in order to connect Italian continent and Sicanian traffic.Building the Qiongzhou Strait bridge is Chinese's dreams for many years, 2012, and Chinese Government plan cost 1,400 hundred million RMB, building the main span footpath is the combined large-span suspension bridge in Qiongzhou Strait of 3500 left and right rice, in order to connect the traffic on China's Mainland and island, Hainan.At present, start in the world one construction upsurge that connects the island bridge over strait, in order to satisfy the steamer navigation requirement of 2 50 tons, for fear of building the huge deep-sea deep water foundation of cost, need to build 3000～5000m across the strait Bridge in footpath.
The modal cable arrangement form of suspension bridge is parallel cable system, namely has two vertical parallel rope face systems that formed by main push-towing rope and suspension rod.Traditional vertical parallel cable system suspension bridge has the strong characteristics of vertical bearing capacity, can undertake superstructure weight and vehicular load across footpath 3000～5000m suspension bridge, but, because vertical parallel cable system lateral rigidity is poor, torsional rigidity is poor, can not satisfy 3000～5000m greatly across the wind resisting stability requirement of straits, footpath suspension bridge.
Along with improving constantly of suspension bridge bridge design and construction level, noting down across the footpath of modern suspension constantly refreshes, and the suspension bridge structure is increasingly softly changed.the suspended span subject matter of bringing that increases substantially is the sharply decline of suspension bridge structure space rigidity, vertical parallel cable system suspension bridge is very responsive to the effect of wind load, anti-wind problems becomes increasingly conspicuous, this makes wind-induced vibration more important on the impact of large-span suspension bridge safety, be exactly wind resisting stability and affect the large-span suspension bridge wind the most key factor of performance of shaking, it is the flutter stability of suspension bridge, improve wind resisting stability and can be an important topic in the large-span suspension bridge design, structure flutter stability under the wind effect has become affects the key factor that large-span suspension bridge is built.
Improving the large-span suspension bridge wind resisting stability can be improving suspension bridge structural system integral rigidity as main, to control the suspension bridge vibration characteristics and to improve the means such as section pneumatic performance as auxiliary.The rigidity of structure of large-span suspension bridge mainly comes from main push-towing rope, and the starting point that improves suspension bridge structural entity rigidity should be placed on and increase on the main push-towing rope space stiffness.Therefore, at bridge engineering circle, connect the island suspension bridge for the large span of building 3000～5000m is over strait, need the large span suspension bridge form of structure of the strong new spatial cable system of a kind of wind resisting stability badly.
The hyperboloid of one sheet and hyperbolic paraboloid are typical Quadric rvler surfaces, its curved surface can be made of two family's straight lines, Quadric rvler surface has a significant application value architectural, usually consist of the skeleton of building with it, use the building that ruled surface is built, have good mechanical property, construction technology is simple, the straight-line prestressed steel wire of stretch-draw more for convenience, its facade is beautiful and firm in structure.Many bulk storage plants, concert hall, the roofing profile of sports palace building adopts hyperbolic paraboloid saddle-shaped exactly, by straight line stretch-draw prestressing force steel wire, reaches the requirement of large span roof structural bearing capacity.Utilize the straight burr of the hyperboloid of one sheet, the crosspoint of two family's straight lines is firmly linked together, will obtain a very lightly and very firm building, the profile that the huge cooling tower of power plant is commonly used is exactly the hyperboloid of one sheet, the rattan gaily decorated basket is also usually used hyperboloid of one sheet profile, and the Guangzhou TV transmission tower of 600 meters high " little rough waist " is exactly to utilize the straight burr principle of the hyperboloid of one sheet to build.
use for reference the Structural Tectonics of Tibet, China Motuo Teng bridge, according to " stretching integral " large-span structure design concept, utilize the straight burr characteristic of the hyperboloid of one sheet, build the Spatial Cable net, form the Spatial cable systems of hyperboloid of one sheet form, the crossover node of fixed space rope net main push-towing rope, oval steel work reinforcing ring collar tie beam is set, improve the space stiffness of cable system, adopt the central button of gate-type steel work rigidity, strengthen closing property of the lotus root effect of cable of space cable and stiff girder, suspension rod and stiff girder bridge deck are installed at last, build a kind of large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable.
Summary of the invention
Technical problem: the large span suspension bridge that the invention provides the hyperboloid of one sheet Spatial Cable host cable that a kind of structure space rigidity is large, span ability is strong, wind resisting stability is good.Straight burr characteristic according to the hyperboloid of one sheet, the vertical parallel cable system of reform traditional suspension bridge, big and heavy concentrated cable is changed into the space steel wire cable of dispersion, the space crossed layout of steel wire strand cable is in order to build the large span straits suspension bridge of 3000～5000m.
technical scheme: the large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable of the present invention, comprise a mesh space main push-towing rope, bridge tower, the steel ring tower head, suspension rod, put more energy into girder steel and anchorage, cylinder mesh space main push-towing rope is connected with the steel ring tower head as the main push-towing rope of suspension bridge, the steel ring tower head is arranged on the bridge tower top, the girder steel of putting more energy into is suspended in a below of mesh space main push-towing rope by suspension rod, cylinder mesh space main push-towing rope consists of by several steel wire cables are space crossed, its steric configuration is the sealing bobbin shape rope net of hyperboloid of one sheet Spatial Cable vertical formation off the net, the steel wire cable of cylinder mesh space main push-towing rope passes the reserving hole on the steel ring tower head, the two ends of cylinder mesh space main push-towing rope are anchored among anchorage.Along suspension bridge, the oval steel perimeter beam of multiple tracks is set in cylinder mesh space main push-towing rope vertically, the steel wire cable of cylinder mesh space main push-towing rope passes oval steel perimeter beam and is fixedly connected with it, the upper end of suspension rod is fixed on oval steel perimeter beam, and the suspension rod lower end is connected with the girder steel of putting more energy into.Be provided with several gate-type rigidity central authorities button at the suspension bridge zone line, gate-type rigidity central authorities detain end and are connected with the girder steel of putting more energy into, and the upper end is connected with oval steel perimeter beam.
The job practices of the large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable of the present invention comprises the following steps:
The first step: excavation pit, construction bridges is basic, builds bridge tower, steel ring tower head and the anchorage of suspension bridge;
Second step: after setting up drag cable and building temporary construction cat road, according to hyperboloid of one sheet equation, measure accurately and setting-out, the space crossed layout of multiply cable, the steel wire cable of pull cylinder mesh space main push-towing rope passes the preformed hole of steel ring tower head, and the employing ground tackle is anchored in cylinder mesh space main push-towing rope among anchorage, sets up a mesh space main push-towing rope, after carrying out the tight cable work and linear adjustment of cable of space cable, the crosspoint of adopting U-shaped fixture stationary magazine creel mesh space main push-towing rope;
The 3rd step: the oval steel perimeter beam transportation of ectonexine form of structure is put in place, oval steel perimeter beam is installed, adopt fixture that cylinder mesh space main push-towing rope firmly is connected with oval steel perimeter beam, inside at oval steel perimeter beam arranges type steel support, form the lateral stiffness section, strengthen the space stiffness of cylinder mesh space main push-towing rope;
The 4th step: the upper end of suspension rod firmly is arranged on the hanger of oval steel perimeter beam, lifts the girder steel of putting more energy into and put in place, the girder steel of putting more energy into is fixedly connected on the lower end of suspension rod;
The 5th step: at suspension bridge bridge zone line, the central button of gate-type rigidity is installed, the lower end of the central button of gate-type rigidity is connected with the girder steel of putting more energy into, the upper end is connected with oval steel perimeter beam, strengthen the collaborative work ability of cylinder mesh space main push-towing rope and the girder steel of putting more energy into, improve wind resisting stability, railing and deck paving are installed at last, form the large span suspension bridge of hyperboloid of one sheet Spatial cable systems, build the large span straits suspension bridge of 3000～5000m.
Along with the continuous increase of suspended span, corner frequency and the torsional frequency of parallel cable system large-span suspension bridge are near each other, and large-span suspension bridge structure critical wind speed of flutter reduces.The critical wind speed of flutter of large-span suspension bridge is relevant with the twist and warping frequency ratio to the torsional frequency of suspension cable bridge, and adopting the Spatial cable systems suspension bridge is to improve greatly across the most effective method of the flutter stability of suspension bridge.The structural entity rigidity of large-span suspension bridge is mainly derived from the cable system stiffness, parallel cable system suspension bridge is changed into hyperboloid of one sheet Spatial cable systems suspension bridge, can increase substantially lateral resisting rigidity and the torsional rigidity of large-span suspension bridge, can increase torsional frequency and the torsional frequency ratio of large-span suspension bridge structure, improve the large-span suspension bridge flutter stability.Adopt the central button of gate-type steel work rigidity, cable of space cable and stiff girder are linked together, the twisting vibration of stiff girder and the twisting vibration of Spatial cable systems can be coupled together to a certain extent, the twisting vibration of cable of space cable and stiff girder can be coupled together to a certain extent with the side direction horizontal vibration, reach the purpose that improves large-span suspension bridge structure torsional rigidity and torsional frequency, strengthen the wind resisting stability energy of large-span suspension bridge.
The hyperboloid of one sheet is a kind of typical ruled surface, and its curved surface can be made of two family's straight lines, and ruled surface has a significant application value architectural, usually consists of the skeleton of building with it.Hyperboloid of one sheet straight burr grid system exists many crossover nodes, is connected and fixed these crosspoints, can improve the globality of hyperboloid of one sheet spatial cable structure system.Adopt hyperboloid of one sheet Spatial Cable host cable as the large-span suspension bridge weight cable, can improve the space structures rigidity of large-span suspension bridge, increase lateral resisting rigidity, torsional rigidity and the torsional frequency of suspension bridge structure, improve the large-span suspension bridge flutter stability.
For space stiffness and the globality of strengthening Spatial cable systems, in hyperboloid of one sheet Spatial cable systems, configure oval steel work reinforcing ring collar tie beam, oval steel work reinforcing ring collar tie beam adopts ectonexine assembling type steel structure ring beam to form, the ectonexine steel ring beam adopts clamp, the outer shroud collar tie beam hangs the upper strata cable net, and interior ring beam hangs the lower net cable net.Oval steel work reinforcing ring collar tie beam structure arranges hanger, can facilitate the installation of three-dimensional suspension rod, guarantees the common stressed work of stiff girder bridge deck and Spatial cable systems.
Greatly across the Spatial cable systems profile of footpath hyperboloid of one sheet Spatial cable systems suspension bridge as smart as a new pin, face shaping such as little rough waist, hyperboloid of one sheet horizontal section is one group of ellipse, the hyperboloid of one sheet can be regarded as and is made of the series of parallel ellipse, middle waist location ellipse is the most tiny, and it is large that the two ends oval cross section becomes gradually.The equation of the side direction section of the hyperboloid of one sheet is hyperbola, hyperboloid of one sheet Spatial cable systems side is the curved surface rope net of the indent of symmetry, just as the wind cable, catch hold of oval steel work reinforcing ring collar tie beam to hauling mutually tightly, the Spatial cable systems of hyperboloid of one sheet shape can provide the cable horizontal component, the huge wind action of opposing straits environment guarantees large-span suspension bridge structure lateral stability, improves the large-span suspension bridge wind loading rating.
In order to improve the large-span suspension bridge wind resisting stability, span centre zone at large-span suspension bridge, several steel work gate-type rigidity button is set, the structural element such as cable of space cable, oval steel work ring beam and steel stiff girder are connected in one, can increase the large-span suspension bridge structural integrity, the twisting vibration of stiff girder and the twisting vibration of Spatial cable systems can be coupled together to a certain extent, further improve the space torsional rigidity of suspension bridge structure.
the present invention is according to " stretching integral " large-span structure design concept, straight burr characteristic according to the hyperboloid of one sheet, the stressed needs of wind resisting stability according to large span straits suspension bridge, the vertical parallel cable system of reform traditional suspension bridge, with big and heavy concentrated cable, change the space steel wire cable of dispersion into, the space crossed layout of steel wire strand cable, form the netted suspended-cable structure system of cable of space cable of hyperboloid of one sheet form, fixed space cable crossover node, oval steel work reinforcing ring collar tie beam is set, portal frame rigidity central authorities are set to be linked and connects cable of space cable and stiff girder, increase the large-span suspension bridge structural integrity, improve torsional rigidity and the lateral resisting rigidity of Spatial cable systems suspension bridge, suspension rod and stiff girder bridge deck are installed, build a kind of large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable, fundamentally solve large-span suspension bridge wind resisting stability problem, satisfy to build the technical requirements of the large span straits suspension bridge of 3000～5000m.
Beneficial effect: the present invention compared with prior art has the following advantages:
Along with the development that connects island engineering construction upsurge over strait, constantly the increasing across the footpath of straits suspension bridge, the suspension bridge structure is increasingly softly changed, and structures under wind stability has become the key factor that affects the large-span suspension bridge construction.
The present invention is according to " stretching integral " large-span structure design concept, utilize the straight burr characteristic of the hyperboloid of one sheet, the vertical parallel cable system of reform traditional suspension bridge, adopt hyperboloid of one sheet Spatial Cable host cable system, with big and heavy concentrated cable, change the space steel wire cable of dispersion into, the space crossed layout of steel wire strand cable, fixed space cable crossover node, form the netted suspended-cable structure system of cable of space cable of hyperboloid of one sheet form, build a kind of large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable.
Compare with traditional vertical parallel cable system suspension bridge, the netted suspended-cable structure system of hyperboloid of one sheet cable of space cable has increased the space stiffness of large-span suspension bridge, torsional rigidity and the lateral resisting rigidity of large-span suspension bridge have been improved, improved the torsional frequency of suspension bridge, increased the twist and warping frequency ratio of suspension bridge, the critical wind speed of flutter of large-span suspension bridge improves greatly, can fundamentally solve large-span suspension bridge wind resistance flutter stability problem.
In hyperboloid of one sheet Spatial cable systems, every 30～40 meters left and right, oval steel work reinforcing ring collar tie beam together is set, has strengthened space stiffness and the globality of hyperboloid of one sheet Spatial cable systems suspension bridge, guarantee the collaborative work of each strand of Spatial cable systems steel wire cable.Oval steel work reinforcing ring collar tie beam adopts ectonexine steel ring beam loop type, ectonexine steel ring beam clamp, and cycle beam hangs the upper strata cable net, and interior collar tie beam hangs the lower net cable net.Oval steel work reinforcing ring collar tie beam is set, can strengthens the torsional rigidity of Spatial cable systems suspension bridge, improve the critical wind speed of flutter of large-span suspension bridge, improve Spatial cable systems suspension bridge wind resisting stability energy.
Flat-shaped oval steel collar tie beam is set, be conducive to the hanger erection construction, at the span centre place of suspension bridge, flat-shaped oval steel collar tie beam breadth of section is 3/4～4/5 bridge deck width, intilted suspension rod can be set hold stiff girder, be conducive to improve the large-span suspension bridge flutter stability; In the bridge tower position, flat-shaped oval steel collar tie beam breadth of section is the bridge deck width of 2～3 times, outward-dipping suspension rod can be set hold stiff girder, is conducive to improve the anti-quiet wind performance of large-span suspension bridge.
the face shaping of hyperboloid of one sheet Spatial Cable host cable system suspension bridge such as little rough kidney-shaped shape, the Spatial cable systems side is the curved surface rope net of symmetrical indent, the Spatial Cable net of hyperboloid of one sheet shape is just as the wind cable, catch hold of oval steel work reinforcing ring collar tie beam to hauling mutually tightly, hyperboloid of one sheet Spatial cable systems has larger lateral resisting rigidity, Spatial Cable host's cable can provide the cable horizontal component, therefore, large-span suspension bridge has the quiet wind load ability of very large anti-side direction, can resist the huge wind action in area, straits, can guarantee large-span suspension bridge structure lateral stability.
At the zone line of large-span suspension bridge, the central button of several gate-type steel work rigidity is set, strengthen closing property of the lotus root effect of cable of space cable and stiff girder, strengthen the collaborative work ability of cable of space cable and stiff girder, increase the large-span suspension bridge structural integrity.The central button of gate-type rigidity is set, the twisting vibration of stiff girder and the twisting vibration of Spatial cable systems can be coupled together to a certain extent, the twisting vibration of cable of space cable and stiff girder is coupled together to a certain extent with the side direction horizontal vibration, improve large-span suspension bridge structure torsional rigidity, torsional frequency and twist and warping frequency ratio, increase the damping of large-span suspension bridge structure, change the large-span suspension bridge vibration characteristics, improve critical wind speed of flutter, improve the large-span suspension bridge wind resisting stability.
Hyperboloid of one sheet Spatial cable systems suspension bridge of the present invention has the advantages such as span ability is strong, structure space rigidity is large, wind resisting stability is good, can fundamentally solve large span suspension bridge wind resistance flutter stability problem, in order to build the large span straits suspension bridge of 3000～5000m.
Description of drawings
Fig. 1 is the full-bridge schematic three dimensional views of the large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable of the present invention;
Fig. 2 is the bridge tower place schematic three dimensional views of the large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable of the present invention;
Fig. 3 is the Anchor Foundation schematic diagram of the large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable of the present invention;
Fig. 4 is the span centre generalized section of the large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable of the present invention;
Fig. 5 is 1/4 generalized section of the large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable of the present invention;
Fig. 6 is the configuration schematic diagram of hyperboloid of one sheet Spatial Cable net.
Have in figure: cylinder mesh space main push-towing rope 1; Bridge tower 2; Steel ring tower head 3; Oval steel perimeter beam 4; Suspension rod 5; The girder steel 6 of putting more energy into; Gate-type rigidity central authorities button 7, anchorage 8.
The specific embodiment
Below in conjunction with Figure of description, the present invention is done further illustrating.
Embodiment 1:
the large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable of the present invention, comprise a mesh space main push-towing rope 1, bridge tower 2, steel ring tower head 3, oval steel perimeter beam 4, suspension rod 5, the girder steel 6 of putting more energy into, gate-type rigidity central authorities button 7 and anchorage 8, cylinder mesh space main push-towing rope 1 is to consist of by several steel wire cables are space crossed, its steric configuration is the sealing bobbin shape rope net of hyperboloid of one sheet Spatial Cable vertical formation off the net, cylinder mesh space main push-towing rope 1 main push-towing rope as the Ultra-Long Spans suspension bridge, steel ring tower head 3 is the top of bridge tower 2 fixedly, the steel wire cable of cylinder mesh space main push-towing rope 1 passes the reserving hole on steel ring tower head 3, be anchored among anchorage 8, cylinder mesh space main push-towing rope 1 vertically arranges the oval steel perimeter beam 4 of multiple tracks along suspension bridge, the upper end of suspension rod 5 is fixed on oval steel perimeter beam 4, the girder steel 6 of putting more energy into is suspended in a below of mesh space main push-towing rope 1 by suspension rod 5 and oval steel perimeter beam 4, at the suspension bridge zone line, the central button 7 of several gate-type rigidity is set, the girder steel 6 of putting more energy into is fixed in gate-type rigidity central authorities button 7 lower ends, the upper end is connected with oval steel perimeter beam 4, strengthen the structural integrity of cylinder mesh space main push-towing rope 1 and the girder steel 6 of putting more energy into.
Embodiment 2:
The job practices of the large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable of the present invention comprises the following steps:
The first step: base area quality shape, geomorphologic conditions and navigation requirement, carry out the bridge site selection of large span straits suspension bridge, excavation pit, bridge tower 2, steel ring tower head 3 and the anchorage 8 of large span straits suspension bridge are built in the construction bridges basis;
Second step: after setting up drag cable and building temporary construction cat road, according to hyperboloid of one sheet equation, measure accurately and setting-out, the space crossed layout of multiply cable, the traction steel wire cable passes steel ring tower head 3 preformed holes, is anchored in anchorage 8 bases, sets up a mesh space main push-towing rope 1, after carrying out the tight cable work and linear adjustment of cable of space cable, the crosspoint of stationary magazine creel mesh space main push-towing rope 1;
The 3rd step: the oval steel perimeter beam 4 of transportation ectonexine form of structure puts in place, oval steel perimeter beam 4 is installed, adopt fixture that cylinder mesh space main push-towing rope 1 firmly is connected with oval steel perimeter beam 4, inside at oval steel perimeter beam 4 arranges type steel support, form multiple tracks lateral stiffness section, strengthen the space stiffness of cylinder mesh space main push-towing rope 1;
The 4th step: the upper end of suspension rod 5 firmly is arranged on the hanger of oval steel perimeter beam 4, lifts the girder steel 6 of putting more energy into and put in place, the girder steel 6 of putting more energy into is fixedly connected on the lower end of suspension rod 5;
The 5th step: at the large-span suspension bridge zone line, the central button 7 of gate-type rigidity is installed, strengthen the collaborative work ability of cylinder mesh space main push-towing rope 1 and the girder steel 6 of putting more energy into, improve wind resisting stability, railing and deck paving are installed at last, form the large span suspension bridge of hyperboloid of one sheet Spatial cable systems, build the large span straits suspension bridge of 3000～5000m.
Embodiment 3:
Certain strait Bridge is a combined large span suspension bridge, the main span footpath is 3600m, bridge floor overall with 60m, dividing of suspension bridge is 1200m+3600m+1200m across the footpath, the bridge floor both sides are unidirectional 3 tracks of highway part, the bridge floor mid portion is twin track railway, in order to satisfy the wind resisting stability requirement, adopts the bridge type of the large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable.Bridge tower is door pillar formula bridge tower, and bridge tower is high is 420 meters, and bridge tower is reinforced concrete composite structure, and king-post is 18 * 15 meters square-sections, and 5 road rigid beams are set in king-post, and pylon foundation is the continuous underground wall structure of 2 circles.Anchorage adopts the Reinforced Concrete structure, and prism bodily form anchorage can make anchorage embed the soil body.The bridge tower structural top arranges oval steel ring tower head, and steel ring tower head major axis dimension is 120 meters, and minor axis dimension is 60 meters.Main rope of suspension bridge adopts hyperboloid of one sheet Spatial cable systems, the space crossed layout of steel wire cable, the steel wire cable of cylinder mesh space main push-towing rope passes the reserving hole on the steel ring tower head, be anchored among anchorage, this bridge cylinder mesh space main push-towing rope is comprised of 32 cables, adopts Prefabricated parallel cable strand method (PPWS method) technique, adopts the φ 5.2mm high tensile steel wire of 1800MPa, cylinder mesh space main push-towing rope steel wire consumption is 32 * 61 strand * 127 thread, and every cables diameter is 45.8cm.Oval steel perimeter beam is to be made of a series of oval steel ring beams not of uniform size, in the middle of bridge, the waist location ellipse is the most tiny, and the two ends oval cross section becomes greatly gradually, and in the middle of bridge, the oval steel ring beam major axis dimension of waist location is 40 meters, minor axis dimension is, 20 meters.This bridge bridge floor arranges the two groups of compressor wire suspension rods in left and right, and the suspension rod spacing is 30 meters, amounts to 2 * 120 suspension rods.Stiff girder adopts the steel truss type stiff girder, and steel truss is high is 12 meters.The zone line of suspension bridge arranges 5 road rigidity central authorities and detains, and adopts the buckle-shaped formula of steel work gate-type rigidity, further strengthens the globality of cylinder mesh space main push-towing rope and the girder steel of putting more energy into.
The large span suspension bridge construction technological process of hyperboloid of one sheet Spatial Cable host cable of the present invention is: the large-span suspension bridge addressing---bridge tower construction---anchorage construction---Spatial cable systems construction---oval steel work reinforcing ring collar tie beam is installed---suspension rod is installed---lifting stiff girder---install rigidity central authorities buckles---deck paving etc.In the large span suspension bridge construction operation of hyperboloid of one sheet Spatial cable systems, must be noted that promptly to grab thin each link, the Specific construction technology point is as follows:
(1) large-span suspension bridge addressing
Suspension bridge is Large Span Bridges, should carry out the contrast of multiple-schemes analysis, carries out technical and economical analysis and research.The large-span suspension bridge bridge site selection should consider the aspect requirements such as the hydrology, landform, atural object, landforms and engineering geology, and the long-term planning requirement of navigation aspect should be considered in the section of opening the navigation or air flight.The Bridge position shadow may be located at as far as possible that the river course is straight, main flow is stable, the riverbed can be passed through on the section than central flow, and the suspension bridge bridge location should be chosen in narrower location, river course.Suspension bridge belongs to Large Span Bridges, bridge tower and the good geological conditions of anchorage position needs, and it is single that the suspension bridge bridge should be located at geological structure, Rock Mass Stability, basement rock buries more shallow, and soil layer is solid, the location that geology is good.Suspension bridge should not be located at the defective sectors such as tomography, landslide, solution cavity, salinized soil and mire, should avoid fault belt, and movable earthquake fault band is particularly arranged in the recent period.
Should take full advantage of marine island across straits, footpath suspension bridge greatly, can the segmentation bridge construction.Gorge over strait suspension bridge should adopt large suspension bridge across the footpath as far as possible, satisfies the navigation channel demand for development, also avoids building in deep water simultaneously bridge pier as far as possible.The gorge over strait suspension bridge of hyperboloid of one sheet Spatial cable systems should select bridge two sides that solid Rock Site is arranged, so that the employing Compound Tunnel Anchorage utilizes Prestressed Rock Anchor, the anchored force of performance deep layer rock, reduce construction costs, guarantee that the cable anchoring is safe and reliable.
(2) bridge tower construction
The height of large-span suspension bridge bridge tower is usually more than 100 meters, belong to the tall and slender structure category, bridge tower is the important primary structure member of large-span suspension bridge, bearing the vertical loads such as main push-towing rope weight, bridge deck weight and vehicular load, king-post must have powerful resistance to compression supporting capacity, and the king-post basis is necessary solid and reliable.Simultaneously, tall and big Construction of Pylon of Long Span Suspension Bridge is being born huge wind load and geological process power, therefore, should guarantee that Construction of Pylon of Long Span Suspension Bridge has powerful side direction supporting capacity.
The common transversary form of Construction of Pylon of Long Span Suspension Bridge is firm structure formula, truss-like and the form such as hybrid, and just structure formula profile is lucid and lively succinct, easy construction, and just structure formula bridge tower has been fit to 1500 meters across the suspension bridge bridge below the footpath; The truss-like bridge tower has the flat weight bearing power of larger water resistant, but cross support brace constructional difficulties, the truss-like bridge tower is fit to 2000 meters across the suspension bridge bridge more than the footpath.Construction of Pylon of Long Span Suspension Bridge vertical structure form common are I font, A font and the form such as chevron shaped, and I font bridge tower form is simple, and easy construction is fit to across the footpath single-span suspension bridge bridge below 2000 meters; A font and chevron shaped bridge tower longitudinal rigidity are large, and still, its constructional difficulties is fit to the middle tower of multispan multi-span suspension bridges or the single-span suspension bridge bridge tower more than 3000 meters across the footpath.
It is large that Construction of Pylon of Long Span Suspension Bridge constructional materials classification has concrete structure, steel work and combining structure form, concrete towers rod structure to have a Compressive Bearing Capacity, easy construction, the advantage such as cost is low and maintenance cost is low, but the construction period is long.In recent years, adopted the job practices of slip form concreting, the construction of concrete tower post becomes very convenient.The steel structure tower rod structure has that speed of application is fast, batch production is made in advance and the characteristics such as the cross support construction is simple, but cost is higher.
The suspension bridge of hyperboloid of one sheet Spatial cable systems, be fit to the large span straits suspension bridge of 3000～5000m, the above tower height of bridge floor calculates across the footpath according to 1/9～1/11, should be 280～500 meters, add 80～90 meters of the following headways of bridge floor, the bridge tower height overall is about 360～580 meters.Therefore, the straits Construction of Pylon of Long Span Suspension Bridge engineering quantity of hyperboloid of one sheet Spatial cable systems is huge, the bridge tower structure stress is huge, the transversary form of suggestion adopts the truss-like bridge tower, the vertical structure form adopts A font or chevron shaped bridge tower, position, middle and lower part tower body adopts concrete-shaped steel combination structure building, and the top bridge tower adopts steel work to build.
Large span straits suspension bridge adopts the netted cable system of hyperboloid of one sheet Spatial Cable, can strengthen the wind resisting stability of large-span suspension bridge, hyperboloid of one sheet Spatial cable systems cross section presents the oval cross section form, therefore, the bridge tower top arranges huge flat oval steel ring beam, supports hyperboloid of one sheet Spatial cable systems.Due to hyperboloid of one sheet Spatial cable systems at the oval cross section width of the bridge tower position width greater than bridge deck, the large top across straits, footpath Construction of Pylon of Long Span Suspension Bridge of hyperboloid of one sheet Spatial cable systems can arrange one with the huge flat oval steel ring beam form of structure of outer cantilevered fashion, bridge tower top profile is just as band encorbelment electric power pylon, huge flat oval steel ring beam and the bridge tower king-post firm welding of form.In huge flat oval steel ring beam, the type steel support structure is set, guarantees the safety of flat oval steel ring beam structure stress, and pre-buried type is set turns to hollow steel pipe, substitute traditional saddle, in order to realize that cable turns at the bridge tower place.The bridge tower of hyperboloid of one sheet Spatial cable systems large-span suspension bridge should adopt four-column type A font bridge tower, adopts huge crossbeam to be connected with bearing diagonal between four posts.
(3) anchorage construction
Anchorage is the important composition member of suspension bridge, plays a part the anchoring main push-towing rope, and it passes to ground with the pulling force in main push-towing rope, and the common form of Analysis of Suspension Bridges ' Anchorage is gravity anchor and tunnel-type anchorage.The vertical force component that gravity anchor relies on deadweight to resist main push-towing rope, the horizontal component of cable is resisted by the frictional resistance between anchorage and ground or build-in force.Early stage suspension bridge gravity anchor adopts the steel frame anchor system more, and whole steel frame is cast in the anchor block concrete, and main cable strand is corresponding with the shaped steel pull bar, and this system's steel using amount is large, and construction is complicated.The steel frame anchor system is progressively substituted by the prestress anchoraging system, the prestress anchoraging system is made of presstressed reinforcing steel and cable thigh connector, and main cable strand is connected with presstressed reinforcing steel by connector power is given to anchor block, and this system's steel using amount is few, flexible arrangement, easy construction.
When there is firm basement rock suspension bridge two sides, can adopt tunnel-type anchorage, dig oblique tunnel in basement rock, at tunnel bottom, anchor ingot plate is set, clog one section wedge shape concrete circular cone as anchor block, can greatly save engineering quantity, the reduction construction costs.
Hyperboloid of one sheet Spatial cable systems suspension bridge generally is used for large span straits suspension bridge, and cable tension is huge, needs huge anchorage anchor-hold, need to improve the anchorage system science of carrying out.Tunnel recombination formula anchorage system is adopted in suggestion, takes full advantage of anchorage rear end country rock, utilizes Prestressed Rock Anchor to transfer the anchored force of deep layer rock, the anchor block structure acting in conjunction together of Prestressed Rock Anchor and tunnel type cone shape.Compare with tunnel-type anchorage with traditional gravity anchor, the anchorage structure has been given full play to the axial rigidity of Prestressed Rock Anchor, Prestressed Rock Anchor anchoring deep layer rock has greatly increased anchored force, can guarantee the anchoring requirement of new-type hyperboloid of one sheet Spatial cable systems galvanized wire for suspension bridge.
(4) Spatial cable systems construction
Main push-towing rope is the lifeline of suspension bridge, main push-towing rope is be suspended on king-tower and be anchored in flexible supporting member in the anchorage at two ends by the tower top cable saddle, by cable folder and suspension rod and stiff girder to link, main push-towing rope bears stiff girder dead load, vehicle mobile load, temperature load and beam wind load, and suffered Load Transfer is arrived tower top.
The main working procedure that main rope of suspension bridge sets up is: set up dragline and drag cable---sets up the work such as cat road---main push-towing rope sets up---cable folder and hanger erection.
The suspension bridge dragline set up that common employing seabed pulls method, float sets up the methods such as method, free suspension method and helicopter handling, then, utilize dragline to adopt the system that pulls of circulation reciprocating type to set up drag cable, set up cat road track cable.
Suspension bridge cat road structural system is by cat road track cable, cat road surface layer, railing, laterally overline bridge and cat road wind cable etc. form.Suspension bridge cat road is important aerial corridor and job platform, establishes, measures, transfers rope, the tight cable of main push-towing rope, cord clip and hoist cable, main push-towing rope are installed are twined silk and protected working for main push-towing rope steel wire strand pulling carrier.During the construction of suspension bridge, generally be provided with two cat roads.Each is required for a side main cable construction in each cat road, and cat road width generally is about 4 meters left and right.Be the integral rigidity in enhancing cat road, and satisfy current needs, the horizontal overline bridge in cat road in position is set, cat road, both sides is communicated with.For the wind resisting stability that improves the cat road with adjust cat road surface layer shape, cat road wind resistance cable is set, cat road wind resistance cable is connected by drag-line with cat road track cable.
Suspension bridge sets up the main push-towing rope method aerial spin processes (AS method) and Prefabricated parallel cable strand method (PPWS method), and it is comparatively advanced that wherein the Prefabricated parallel cable strand main push-towing rope sets up method, and its effect, quality, precision are all high.The Prefabricated parallel cable strand method is the strand that the parallel high tensile steel wire of being prefabricated in the factory forms to be transported to the mounting method in building site, the steel wire 61 of the every Shu Hanyou diameter of prefabricated strand 5.2mm, 91,127, and two ends build-in hot-cast anchor head, its profile is regular hexagon.Utilize drag cable tower on strand draws one by one, put into saddle and be connected with anchor pole.
The main cable strand traction method is divided into gantry type and pulls two kinds of device traction method and small rail car traction methods.Prefabricated main cable strand is connected with the device that pulls on being installed on drag cable, drag cable is driven pull device to pass cat road door frame guide wheel group, tower top portal guide wheel group, anchorage door frame guide wheel group by the drive unit folding and unfolding reciprocating, the steel wire strand is drawn along cat road cylinder by root be taped against on the cat road.In strand traction erection process, the at the uniform velocity traction of should trying one's best.
Main cable strand sets up its master operation: 1. thread traction is set up: utilize to pull facility and prefabricated thread is pulled by the cat road set up, the anchor head anchoring temporarily; 2. strand promotes traversing and enters saddle: traction is mentioned strand after finishing from roller, and traversing to the saddle top, enters saddle after shaping; 3. the adjustment of strand sag: carried out the adjustment of strand sag when evening, temperature was stablized, namely the span centre absolute altitude of datum wire strand and the span centre relative elevation of non-datum wire strand are controlled adjustment, 4. the strand stretching force is adjusted, the formal anchoring of anchor head.
When the whole Strand Erections of main push-towing rope complete in place after, ensuing work is tight cable, its objective is in order to make main push-towing rope be compacted into circle, reaches the void content of designing requirement, so that the cord clip requirement satisfy to be installed.Tight cable work progress has just tight cable and formal tight two stages of cable.Carry out the operation of pretension cable at the night of temperature stabilization, utilize the instruments such as jack to carry out preliminary full circle to main push-towing rope, every spacing 5m ties up with interim steel band.After the operation of pretension cable is completed, by lower (by span centre to the tower top) direction that hoists, utilize tight cable machine to carry out formal tight cable operation.After the tight cable of main push-towing rope, the work such as the installation, stiff girder that just can carry out cord clip, hoist cable installed, main push-towing rope twines silk and main push-towing rope is anticorrosion.
What hyperboloid of one sheet Spatial cable systems suspension bridge adopted is Spatial cable systems, and its cable construction precision requires higher.Can suitably reform on traditional galvanized wire for suspension bridge erecting process basis, realize hyperboloid of one sheet Spatial cable systems erection construction.At first, in the centre-height position of bridge tower place hyperboloid of one sheet cable of space cable, along one of Large Span Bridges Y setting cat road, as the temporary construction shipping platform.Draw one by one wire rope to the cat road, adopt lifting means, boom hoist cable adopts the ground tackle anchoring steel wire rope on bridge tower, the planar parallel steel wire rope group of formation cylindroid to the huge flat oval steel ring beam position of bridge tower.Then, tilted direction moves the wire rope position and ground tackle is anchored on bridge tower, forms the Steel Space wire rope net of hyperboloid of one sheet shape, and the crosspoint of connecting steel wire ropes space networks forms hyperboloid of one sheet Spatial Cable net temporary construction transportation cat road.When building transportation cat road, bridge tower is the splay interim cable of configurable multiple tracks behind, so that bridge tower structure stress balance.utilize the temporary construction transportation cat road of hyperboloid of one sheet Steel Space wire rope net, draw main cable strand one by one, pass the hollow steel pipe that turns to that bridge tower goes out, the space crossed layout of steel wire strand cable, form hyperboloid of one sheet cable of space cable net, after all the steel wire Strand Erection puts in place, be circular cross-section with the tight cable of each main cable strand, adopt U-shaped clip to be connected and fixed the crosspoint of main push-towing rope space networks, form hyperboloid of one sheet Spatial cable systems, oval steel work reinforcing ring collar tie beam is installed, cord clip is installed, suspension rod, the lifting stiff girder, form the large span suspension bridge of hyperboloid of one sheet Spatial Cable host cable.
The ruled surface Spatial cable systems profile of the hyperboloid of one sheet as smart as a new pin, face shaping such as little rough waist, hyperboloid of one sheet horizontal section is one group of ellipse, the hyperboloid of one sheet can be regarded as and is made of the series of parallel ellipse, middle waist location ellipse is the most tiny, the two ends oval cross section becomes greatly gradually, and the variable cross-section of hyperboloid of one sheet Spatial cable systems arranges that the cable form is to be conducive to very much large-span suspension bridge structures under wind stability.The equation of the side direction section of the hyperboloid of one sheet is hyperbola, hyperboloid of one sheet Spatial cable systems side is the curved surface rope net of the indent of symmetry, just as the wind cable, catch hold of oval steel work reinforcing ring collar tie beam to hauling mutually tightly, the Spatial cable systems of hyperboloid of one sheet shape can provide the cable horizontal component, the huge wind action of opposing straits environment guarantees large-span suspension bridge structure lateral stability, improves the large-span suspension bridge wind loading rating.
(5) oval steel work reinforcing ring collar tie beam is installed
In order to strengthen space stiffness and the globality of hyperboloid of one sheet Spatial cable systems suspension bridge, in order to ensure the collaborative work of each strand of Spatial cable systems steel wire cable, in hyperboloid of one sheet Spatial cable systems, every 30～40 meters left and right, oval steel work reinforcing ring collar tie beam should be set one, steel ring beam ring sectional dimension should adapt with hyperboloid of one sheet Spatial cable systems section, and suspension rod one end is fixed on steel work reinforcing ring collar tie beam, in order to hang stiff girder.Oval steel work reinforcing ring collar tie beam should adopt ectonexine steel ring beam loop type, ectonexine steel ring beam clamp, cycle beam hangs the upper strata cable net, interior collar tie beam hangs the lower net cable net, oval steel work reinforcing ring circle beam setting direction should be vertical with space networks cable cross section, guarantees to transmit suspension rod power to the cable of space cable net.Inner at oval steel work reinforcing ring collar tie beam, the steel structure support rod member is set, in order to strengthen the rigidity of oval steel ring beam, reduce the stress of steel ring beam.
At the span centre place of suspension bridge, flat-shaped oval steel collar tie beam breadth of section is preferably 3/4～4/5 bridge deck width, and in the bridge tower position, flat-shaped oval steel collar tie beam breadth of section is preferably the bridge deck width of 2～3 times, and each oval cross section depth-width ratio is preferably 1/2 left and right.Hyperboloid of one sheet Spatial cable systems net is in the minimum point of span centre position, and the height that leaves the stiff girder bridge deck should be greater than 15 meters, in order to satisfy the driving headroom requirement on bridge.At the suspension bridge zone line, intilted suspension rod is set holds stiff girder, be conducive to improve the large-span suspension bridge flutter stability; The bridge tower vicinity arranges outward-dipping suspension rod and holds stiff girder, is conducive to improve the anti-quiet wind performance of large-span suspension bridge.Flat-shaped oval steel collar tie beam is set, is conducive to hanger erection, can strengthen the globality of Spatial cable systems suspension bridge, improve the space stiffness of hyperboloid of one sheet Spatial cable systems suspension bridge, improve Spatial cable systems suspension bridge wind resisting stability energy.
(6) suspension rod is installed
The suspension rod of suspension bridge is with the stiff girder dead load and act on the member that mobile load on stiff girder passes to main push-towing rope, and its upper end is connected with cord clip, and the lower end is connected with stiff girder.Suspension rod can be divided into traditional vertical suspension rod and oblique suspension rod according to its facade arrangement form, and tiltedly suspension rod has the truss role effect, increase vertical integral rigidity of suspension bridge, can reduce amount of deflection, improved the natural frequency of flexural vibrations, reduce the bridge up-down vibration and jolt, improve the driving comfort level.Tiltedly suspension rod has the relaxation effect, has increased the damping of structure, and is favourable to suspension bridge wind resistance antidetonation.But due to the truss effect of oblique suspension rod, the suspension rod STRESS VARIATION amplitude that mobile load causes is larger, and alternate stress can cause the fatigue of gusset material, makes suspension rod damaged in the place's appearance of root anchor cup, and rainwater is invaded and caused the corrosion of suspension rod wire rope.
Hyperboloid of one sheet Spatial cable systems suspension bridge is a kind of suspension bridge for the large span strait Bridge, due to himself characteristic, the oblique suspension rod of suitable employing three dimensions is arranged, the suitable oblique layout of the vertical facade of bridge and cross section middle hanger, in order to strengthen its space stiffness, improve the torsion natural frequency of suspension bridge, improve wind resisting stability.The bridge floor of hyperboloid of one sheet Spatial cable systems large-span suspension bridge is wider, should be at one suspension rod of bridge floor intermediate arrangement, and the intermediate isolating band is set.
(7) lifting stiff girder
Greatly mainly contain two kinds of flat closed steel case beam pattern and steel truss patterns across the stiff girder pattern of suspension bridge, the normal flat closed case beam pattern that adopts of European countries' suspension bridge, the suspension bridge of the U.S., Japan and other countries is commonly used the truss pattern.The ventilative performance of truss-like stiff girder is good, and the rigidity of structure is large, and stiff girder can reach higher torsional rigidity, so its critical wind speed of flutter is higher.The advantage of case beam pattern stiff girder is that cost is saved and better aesthetic effect, the wind loading rating of case beam type stiff girder is subject to the factors restriction, the flutter stability of case beam pattern suspension bridge should be noted the ratio of the pneumatic external form in stiff girder cross section and width and span etc. not as truss pattern stiff girder suspension bridge during design.
The box stiff girder suspension bridge of steel, span has compliance preferably at 1000～2000m, when span is larger, its wind resisting stability be should give cautiously.The truss-like stiff girder suspension bridge, its accommodation is the widest, and span has compliance preferably at 1500～5000m.
Improve the Flutter Performance of the suspension bridge that adopts Stochastic FEM pattern stiff girder, need to improve the profile at two ends, stiff girder cross section, take to add the measures such as tuyere, the fluidised form of streaming to improve air-flow reduces the whirlpool and takes off, and makes the cross section trend streamlined.The center grooved of the box stiff girder of steel to be to increase ventilative property, and the pressure differential of the back bottom surface that reduces to put more energy into adopts the critical wind speed of flutter of the separation type box girder of center grooved will obtain certain raising, certainly can increase the cost of bridge tower and substructure like this.The measures such as deflector, suppression plate or spoiler, central steadying plate of arranging at the stiff girder section also can improve the flutter stability of bridge so that fluidised form is streamed in change.
Hyperboloid of one sheet Spatial cable systems suspension bridge is applicable to the large span straits suspension bridge of 3000～5000m, its stiff girder should adopt ventilative truss-like stiff girder, and should ventilation strip be set at cross section middle part, the pressure differential of the back bottom surface that reduces to put more energy into improves its critical wind speed of flutter.In order further to strengthen the wind resisting stability of hyperboloid of one sheet Spatial cable systems suspension bridge, suggestion arranges the reverse cable of carbon fiber and catches hold of truss-like stiff girder and hyperboloid of one sheet Spatial cable systems, the reverse cable of carbon fiber is fastening truss stiff girder and oval steel work reinforcing ring collar tie beam firmly, and the reverse cable of carbon fiber is anchored in the bridge tower concrete.The mechanical type draw off gear that computer is controlled is set, disturb the wind-induced vibration form of suspension bridge, when running into typhoon, at the reverse cable of windward side tension carbon fiber, leeward side loosens the reverse cable of carbon fiber, in order to improve the wind resisting stability of hyperboloid of one sheet Spatial cable systems suspension bridge.
(8) rigidity central authorities' button and deck paving are installed
In order to strengthen the collaborative work ability of hyperboloid of one sheet Spatial cable systems and stiff girder, in the span centre zone, portal frame type rigidity central authorities should be set to be buckled, the rigidity button links together stiff girder and oval steel work reinforcing ring collar tie beam, the twisting vibration of stiff girder and the twisting vibration of Spatial cable systems can be coupled together to a certain extent, the twisting vibration of cable of space cable and stiff girder can be coupled together to a certain extent with the side direction horizontal vibration, in order to improve the space stiffness of Spatial cable systems suspension bridge, strengthen the wind resisting stability of large-span suspension bridge.
At the span centre place, can be about mutual rigidly connected 2 oval steel work reinforcing ring collar tie beams of 3～4 meters by setting space, so that the rigidity central authorities of double portal frame type are set at the span centre place to be buckled, at the suspension bridge zone line, 100～120 meters, interval arranges several portal frame type rigidity and buckles, in spanning 1/4 zone, 120～150 meters flexible cable claim-reductions of several spacing are set, further strengthen the space stiffness of Spatial cable systems suspension bridge, improve the wind resisting stability of large span straits suspension bridge.
At last, bridge railing is installed, is carried out Asphalt Concrete Deck Pavement, improve deck drainage system, carry out bridge paint, coating decoration, organizing construction checks and accepts, and is open to traffic.
Claims (2)
1. the large span suspension bridge of a hyperboloid of one sheet Spatial Cable host cable, comprise a mesh space main push-towing rope (1), bridge tower (2), steel ring tower head (3), suspension rod (5), put more energy into girder steel (6) and anchorage (8), described cylinder mesh space main push-towing rope (1) is connected with steel ring tower head (3) as the main push-towing rope of suspension bridge, described steel ring tower head (3) is arranged on bridge tower (2) top, the described girder steel of putting more energy into (6) is suspended in a below of mesh space main push-towing rope (1) by suspension rod (5), it is characterized in that, described cylinder mesh space main push-towing rope (1) consists of by several steel wire cables are space crossed, its steric configuration is the sealing bobbin shape rope net of hyperboloid of one sheet Spatial Cable vertical formation off the net, the steel wire cable of cylinder mesh space main push-towing rope (1) passes the reserving hole on steel ring tower head (3), the two ends of cylinder mesh space main push-towing rope (1) are anchored among anchorage (8), along suspension bridge, the oval steel perimeter beam (4) of multiple tracks is set in cylinder mesh space main push-towing rope (1) vertically, the steel wire cable of cylinder mesh space main push-towing rope (1) passes oval steel perimeter beam (4) and is fixedly connected with it, the upper end of suspension rod (5) is fixed on oval steel perimeter beam (4), suspension rod (5) lower end is connected with the girder steel of putting more energy into (6), be provided with several gate-type rigidity central authorities' buttons (7) at the suspension bridge zone line, described gate-type rigidity central authorities' button (7) lower end is connected with the girder steel of putting more energy into (6), the upper end is connected with oval steel perimeter beam (4).
2. a job practices of building the large span suspension bridge of the described hyperboloid of one sheet Spatial Cable of claim 1 host cable, is characterized in that, the method comprises the following steps:
The first step: excavation pit, construction bridges is basic, builds bridge tower (2), steel ring tower head (3) and the anchorage (8) of suspension bridge;
Second step: after setting up drag cable and building temporary construction cat road, according to hyperboloid of one sheet equation, measure accurately and setting-out, the space crossed layout of multiply cable, the steel wire cable of pull cylinder mesh space main push-towing rope (1) passes the preformed hole of steel ring tower head (3), the employing ground tackle is anchored in cylinder mesh space main push-towing rope (1) among anchorage (8), set up a mesh space main push-towing rope (1), after carrying out the tight cable work and linear adjustment of cable of space cable, the crosspoint of adopting U-shaped fixture stationary magazine creel mesh space main push-towing rope (1);
The 3rd step: oval steel perimeter beam (4) transportation of ectonexine form of structure puts in place, oval steel perimeter beam (4) is installed, adopt fixture that cylinder mesh space main push-towing rope (1) firmly is connected with oval steel perimeter beam (4), inside at oval steel perimeter beam (4) arranges type steel support, form the lateral stiffness section, strengthen the space stiffness of cylinder mesh space main push-towing rope (1);
The 4th step: the upper end of suspension rod (5) firmly is arranged on the hanger of oval steel perimeter beam (4), lifts the girder steel (6) of putting more energy into and put in place, the girder steel (6) of putting more energy into is fixedly connected on the lower end of suspension rod (5);
The 5th step: at suspension bridge bridge zone line, gate-type rigidity central authorities' buttons (7) are installed, the lower end of gate-type rigidity central authorities' buttons (7) is connected with the girder steel of putting more energy into (6), the upper end is connected with oval steel perimeter beam (4), strengthen the collaborative work ability of cylinder mesh space main push-towing rope (1) and the girder steel of putting more energy into (6), improve wind resisting stability, railing and deck paving are installed at last, form the large span suspension bridge of hyperboloid of one sheet Spatial cable systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310027622.9A CN103088750B (en) | 2013-01-24 | 2013-01-24 | Especial-big span suspension bridge of uniparted hyperboloid space rope net main cable and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310027622.9A CN103088750B (en) | 2013-01-24 | 2013-01-24 | Especial-big span suspension bridge of uniparted hyperboloid space rope net main cable and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103088750A true CN103088750A (en) | 2013-05-08 |
| CN103088750B CN103088750B (en) | 2014-10-29 |
Family
ID=48201841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310027622.9A Expired - Fee Related CN103088750B (en) | 2013-01-24 | 2013-01-24 | Especial-big span suspension bridge of uniparted hyperboloid space rope net main cable and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103088750B (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850173A (en) * | 2014-02-17 | 2014-06-11 | 中交公路规划设计院有限公司 | System used for controlling longitudinal and torsion static and dynamic response of suspension bridge |
| CN104060540A (en) * | 2014-06-03 | 2014-09-24 | 长安大学 | Temporary cross bracing of space cable suspension bridge and lifting-constructing method of temporary cross bracing |
| CN104213509A (en) * | 2014-09-26 | 2014-12-17 | 重庆交通建设(集团)有限责任公司 | Cable rope hoisting anchor rope type anchorage construction method |
| CN104278637A (en) * | 2014-09-23 | 2015-01-14 | 中铁大桥局集团第一工程有限公司 | No-catwalk cableway erecting method for main cable strands of suspension bridge |
| CN104594178A (en) * | 2015-01-12 | 2015-05-06 | 林同棪国际工程咨询（中国）有限公司 | Suspension bridge with high torsional rigidity |
| CN105672140A (en) * | 2016-03-08 | 2016-06-15 | 中铁港航局集团有限公司 | Erecting, constructing and wind preventing method for long-span cable-stayed bridge steel box girder long cantilever in violent typhoon region |
| CN107386091A (en) * | 2017-06-07 | 2017-11-24 | 东南大学 | The suspension bridge of saddle parabola spatial mixing cable system |
| CN107524311A (en) * | 2017-09-12 | 2017-12-29 | 林信远 | A kind of aerial shelter bridge for being combined with elevator |
| CN107558353A (en) * | 2017-09-25 | 2018-01-09 | 中铁建港航局集团勘察设计院有限公司 | Drag-line height-limiting frame |
| CN107964865A (en) * | 2018-01-08 | 2018-04-27 | 河北工业大学 | A kind of girder severe and the short beam suspension bridge of rigidity function separate type lightweight |
| CN108396633A (en) * | 2018-02-02 | 2018-08-14 | 中铁四局集团第二工程有限公司 | Across the valley suspension bridge pumping beam body concrete construction method of one kind and device |
| CN108978436A (en) * | 2018-09-21 | 2018-12-11 | 广西大学 | Space truss suspension bridge |
| CN109440643A (en) * | 2018-11-21 | 2019-03-08 | 中交第公路勘察设计研究院有限公司 | Main rope of suspension bridge thread anchor |
| CN109653077A (en) * | 2019-02-02 | 2019-04-19 | 中交公路长大桥建设国家工程研究中心有限公司 | A kind of three main push-towing rope double tower column suspension bridges |
| CN109898400A (en) * | 2019-04-09 | 2019-06-18 | 江苏交通工程咨询监理有限公司 | The large-span arch bridge of hyperboloid of one sheet shape variable-section steel pipe Concrete Truss arch rib |
| CN110468724A (en) * | 2019-08-30 | 2019-11-19 | 西安市政设计研究院有限公司 | A kind of cable of space cable suspension bridge main cable construction auxiliary device and main cable construction method |
| CN110472376A (en) * | 2019-10-11 | 2019-11-19 | 北京铁科工程检测有限公司 | A kind of abnormity tower consolidation system supporting element rigidity knowledge method for distinguishing |
| CN110485254A (en) * | 2019-08-23 | 2019-11-22 | 江苏东南特种技术工程有限公司 | A kind of people's row landscape stayd-cable bridge based on sightseeing high building bridge tower structure |
| CN112942151A (en) * | 2021-04-01 | 2021-06-11 | 张家港保税区金港建设工程质量检测有限公司 | Carbon fiber cable net wind-resistant reinforced structure system of ultra-large span suspension bridge and construction method thereof |
| CN112962420A (en) * | 2021-02-07 | 2021-06-15 | 上海市政工程设计研究总院（集团）有限公司 | Suspension bridge and construction method |
| CN113255167A (en) * | 2021-06-28 | 2021-08-13 | 中交第二航务工程局有限公司 | Method for lofting stressed length of cable clamp position of suspension bridge |
| CN113481828A (en) * | 2021-08-06 | 2021-10-08 | 中国航空规划设计研究总院有限公司 | Fish belly type suspension bridge system and design and construction method thereof |
| TWI810083B (en) * | 2022-10-05 | 2023-07-21 | 張譽鐘 | Vertical and horizontal two-way main cable suspension bridge and construction method of vertical and horizontal two-way main cable suspension bridge |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236039B (en) * | 2020-03-09 | 2021-06-11 | 东南大学 | Large-span spatial cable net system suspension bridge |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3857130A (en) * | 1972-04-10 | 1974-12-31 | Intreprindera Ind De Stat Ener | Suspension bridge |
| JPH0849215A (en) * | 1994-08-05 | 1996-02-20 | Sumitomo Heavy Ind Ltd | Cable structure of suspension bridge |
| CN1260421A (en) * | 2000-01-25 | 2000-07-19 | 清华大学 | Large-span bidirectional cable suspension bridge |
| GB2415005A (en) * | 2004-06-08 | 2005-12-14 | Thomas John Upstone | Suspension bridge cables |
| CN201411627Y (en) * | 2009-05-25 | 2010-02-24 | 安徽省高速公路总公司 | Steel-concrete composite tower-beam consolidation kilometer grade multi-span suspension bridge |
| CN203080400U (en) * | 2013-01-24 | 2013-07-24 | 东南大学 | Extra-large span suspension bridge with uniparted hyperboloid space cable net main cables |
-
2013
- 2013-01-24 CN CN201310027622.9A patent/CN103088750B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3857130A (en) * | 1972-04-10 | 1974-12-31 | Intreprindera Ind De Stat Ener | Suspension bridge |
| JPH0849215A (en) * | 1994-08-05 | 1996-02-20 | Sumitomo Heavy Ind Ltd | Cable structure of suspension bridge |
| CN1260421A (en) * | 2000-01-25 | 2000-07-19 | 清华大学 | Large-span bidirectional cable suspension bridge |
| GB2415005A (en) * | 2004-06-08 | 2005-12-14 | Thomas John Upstone | Suspension bridge cables |
| CN201411627Y (en) * | 2009-05-25 | 2010-02-24 | 安徽省高速公路总公司 | Steel-concrete composite tower-beam consolidation kilometer grade multi-span suspension bridge |
| CN203080400U (en) * | 2013-01-24 | 2013-07-24 | 东南大学 | Extra-large span suspension bridge with uniparted hyperboloid space cable net main cables |
Non-Patent Citations (2)
| Title |
|---|
| 梁鹏等: "超大跨度缆索承重桥梁结构体系", 《公路交通科技》 * |
| 郑凯锋等: "琼州海峡超大跨度公铁两用悬索桥方案的提出和初步研究", 《钢结构》 * |
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850173B (en) * | 2014-02-17 | 2016-08-17 | 中交公路规划设计院有限公司 | A kind of for controlling the system that suspension bridge longitudinally responds with torsion force model |
| CN103850173A (en) * | 2014-02-17 | 2014-06-11 | 中交公路规划设计院有限公司 | System used for controlling longitudinal and torsion static and dynamic response of suspension bridge |
| CN104060540A (en) * | 2014-06-03 | 2014-09-24 | 长安大学 | Temporary cross bracing of space cable suspension bridge and lifting-constructing method of temporary cross bracing |
| CN104060540B (en) * | 2014-06-03 | 2015-12-02 | 长安大学 | A kind of cable of space cable suspension bridge false stull and construction method for hanging thereof |
| CN104278637A (en) * | 2014-09-23 | 2015-01-14 | 中铁大桥局集团第一工程有限公司 | No-catwalk cableway erecting method for main cable strands of suspension bridge |
| CN104278637B (en) * | 2014-09-23 | 2016-04-06 | 中铁大桥局集团第一工程有限公司 | A kind of main rope of suspension bridge strand is without the cableway erection method in cat road |
| CN104213509A (en) * | 2014-09-26 | 2014-12-17 | 重庆交通建设(集团)有限责任公司 | Cable rope hoisting anchor rope type anchorage construction method |
| CN104213509B (en) * | 2014-09-26 | 2016-08-24 | 重庆交通建设(集团)有限责任公司 | A kind of cable hoisting anchor cable formula anchorage construction method |
| CN104594178A (en) * | 2015-01-12 | 2015-05-06 | 林同棪国际工程咨询（中国）有限公司 | Suspension bridge with high torsional rigidity |
| CN104594178B (en) * | 2015-01-12 | 2016-11-30 | 林同棪国际工程咨询（中国）有限公司 | The suspension bridge of high torsional rigidity |
| CN105672140A (en) * | 2016-03-08 | 2016-06-15 | 中铁港航局集团有限公司 | Erecting, constructing and wind preventing method for long-span cable-stayed bridge steel box girder long cantilever in violent typhoon region |
| CN107386091A (en) * | 2017-06-07 | 2017-11-24 | 东南大学 | The suspension bridge of saddle parabola spatial mixing cable system |
| CN107524311A (en) * | 2017-09-12 | 2017-12-29 | 林信远 | A kind of aerial shelter bridge for being combined with elevator |
| CN107558353A (en) * | 2017-09-25 | 2018-01-09 | 中铁建港航局集团勘察设计院有限公司 | Drag-line height-limiting frame |
| CN107558353B (en) * | 2017-09-25 | 2024-03-22 | 中铁建港航局集团勘察设计院有限公司 | Inhaul cable type height limiting frame |
| CN107964865A (en) * | 2018-01-08 | 2018-04-27 | 河北工业大学 | A kind of girder severe and the short beam suspension bridge of rigidity function separate type lightweight |
| CN107964865B (en) * | 2018-01-08 | 2024-04-02 | 河北工业大学 | Light short girder suspension bridge with separated girder weight and rigidity functions |
| CN108396633A (en) * | 2018-02-02 | 2018-08-14 | 中铁四局集团第二工程有限公司 | Across the valley suspension bridge pumping beam body concrete construction method of one kind and device |
| CN108978436A (en) * | 2018-09-21 | 2018-12-11 | 广西大学 | Space truss suspension bridge |
| CN109440643A (en) * | 2018-11-21 | 2019-03-08 | 中交第公路勘察设计研究院有限公司 | Main rope of suspension bridge thread anchor |
| CN109653077B (en) * | 2019-02-02 | 2024-02-02 | 中交公路长大桥建设国家工程研究中心有限公司 | Three main cable double-tower column suspension bridge |
| CN109653077A (en) * | 2019-02-02 | 2019-04-19 | 中交公路长大桥建设国家工程研究中心有限公司 | A kind of three main push-towing rope double tower column suspension bridges |
| CN109898400A (en) * | 2019-04-09 | 2019-06-18 | 江苏交通工程咨询监理有限公司 | The large-span arch bridge of hyperboloid of one sheet shape variable-section steel pipe Concrete Truss arch rib |
| CN110485254A (en) * | 2019-08-23 | 2019-11-22 | 江苏东南特种技术工程有限公司 | A kind of people's row landscape stayd-cable bridge based on sightseeing high building bridge tower structure |
| CN110485254B (en) * | 2019-08-23 | 2024-03-19 | 江苏东南特种技术工程有限公司 | Pedestrian landscape cable-stayed bridge based on sightseeing tower bridge tower structure |
| CN110468724A (en) * | 2019-08-30 | 2019-11-19 | 西安市政设计研究院有限公司 | A kind of cable of space cable suspension bridge main cable construction auxiliary device and main cable construction method |
| CN110472376A (en) * | 2019-10-11 | 2019-11-19 | 北京铁科工程检测有限公司 | A kind of abnormity tower consolidation system supporting element rigidity knowledge method for distinguishing |
| CN112962420A (en) * | 2021-02-07 | 2021-06-15 | 上海市政工程设计研究总院（集团）有限公司 | Suspension bridge and construction method |
| CN112942151A (en) * | 2021-04-01 | 2021-06-11 | 张家港保税区金港建设工程质量检测有限公司 | Carbon fiber cable net wind-resistant reinforced structure system of ultra-large span suspension bridge and construction method thereof |
| CN113255167A (en) * | 2021-06-28 | 2021-08-13 | 中交第二航务工程局有限公司 | Method for lofting stressed length of cable clamp position of suspension bridge |
| CN113481828A (en) * | 2021-08-06 | 2021-10-08 | 中国航空规划设计研究总院有限公司 | Fish belly type suspension bridge system and design and construction method thereof |
| TWI810083B (en) * | 2022-10-05 | 2023-07-21 | 張譽鐘 | Vertical and horizontal two-way main cable suspension bridge and construction method of vertical and horizontal two-way main cable suspension bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103088750B (en) | 2014-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103088750B (en) | Especial-big span suspension bridge of uniparted hyperboloid space rope net main cable and construction method thereof | |
| CN203080400U (en) | Extra-large span suspension bridge with uniparted hyperboloid space cable net main cables | |
| CN101476293B (en) | Non-stand construction method for large bridge arch rib | |
| CN105565176B (en) | A kind of asymmetric cable crane of single column | |
| CN103614970B (en) | Steel truss girder assembling construction longitudinal pull and lateral pushing sliding system | |
| CN100543235C (en) | The method and system of erecting steel trusses by stay cable auxiliary complete cantilever | |
| CN103614969B (en) | Steel truss girder assembling, erecting and construction process | |
| CN107386091B (en) | The suspension bridge and construction method of saddle paraboloid spatial mixing cable system | |
| CN202090286U (en) | Traction system suitable for self-anchored type double cable plane suspension bridge | |
| CN101215819B (en) | Separated double-layer bridge-floor cable stayed bridge | |
| CN201826249U (en) | Self-anchored hybrid beam cable-stayed suspension cooperative system bridge | |
| CN101736686A (en) | Self-anchored hybrid beam cable-stayed suspension cooperative system bridge | |
| CN107447665B (en) | A kind of laying method of self-anchored suspension bridge construction cat road carrying rope | |
| CN103290784B (en) | Arched girder conjugative bridge construction method for hanging | |
| CN106012872B (en) | Continuous rigid frame bridge without dorsal funciculus oblique pull reinforcement system and construction method | |
| CN201106155Y (en) | Inclined guy cable auxiliary full cantaliver crane trussed steel beam device | |
| CN102108748B (en) | Quadrilateral endless rope chord supporting structure and construction process | |
| CN109898415A (en) | Cylinder bridge tower in the cylinder of spatial mixing rope net suspension bridge with parabola arch tower cap | |
| CN200999322Y (en) | V-shaped rigid frame arc combined bridge | |
| CN105274941A (en) | General construction method for partially ground-anchored cable-stayed suspension bridge | |
| CN104060545B (en) | Can be used for the suspension trestle waterborne of pumping of concrete and construction method thereof and purposes | |
| CN201317908Y (en) | Double deck cable stayed bridge of separation type | |
| CN108999088A (en) | A kind of construction method of cable-stayed bridge | |
| CN108004931A (en) | Using the method for mixing drag-line construction steel reinforced concrete combination beam | |
| CN105603879B (en) | The construction technology in large-scale pipeline crossing construction cat road |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20180124 |