CN106012798A - Curve bridge with self-balancing support structure - Google Patents
Curve bridge with self-balancing support structure Download PDFInfo
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- CN106012798A CN106012798A CN201610446292.0A CN201610446292A CN106012798A CN 106012798 A CN106012798 A CN 106012798A CN 201610446292 A CN201610446292 A CN 201610446292A CN 106012798 A CN106012798 A CN 106012798A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D12/00—Bridges characterised by a combination of structures not covered as a whole by a single one of groups E01D2/00 - E01D11/00
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a curve bridge with a self-balancing support structure. The curve bridge comprises end bridge abutments, a main curve bridge girder, an auxiliary curve bridge girder, a tower-type self-balancing structure and an auxiliary bridge balancing structure; the main bridge girder of which the two ends are supported on the end bridge abutments adopts a single-side suspended mode, and the main bridge girder is lifted in a suspended mode from the outer side through main cables, slings and suspension bridge cables which are arranged in a spatial catenary mode; the main cables, the suspension bridge cables and dorsal cables are connected to the top ends of main tower bodies, so that the whole stress balance of the tops of the main tower bodies is guaranteed; the lower ends of the main tower bodies adopt the supporting mode that supporting balls are clamped by connecting seats and reverse ball buckles in a buckled mode to achieve limit-free supporting and stress balancing of the bottoms of the main towers; the upper limb of each Y-shaped arm of the auxiliary bridge girder is hinged to the inner edge of the main bridge girder, and the lower limb of each Y-shaped arm of the auxiliary bridge girder is connected with annular cables and normal cables; the annular cables are used for balancing the turnover torque of the auxiliary bridge girder, and the normal cables are used for transmitting normal force of the annular cables to the main bridge girder, balancing the horizontal component force of the main cables, the slings and the suspension bridge cables on the main bridge girder and ensuring the combined action of the main bridge girder and the auxiliary bridge girder.
Description
Technical field
The present invention relates to bridge technology field, be specifically related to the shaped form bridge of a kind of band self-balancing supporting construction.
Background technology
Along with Bridge Design construction development, meet bridge itself functional on the premise of, its structure is the most increasingly focused on novel and attractive in appearance.The novel structure of the unilateral circular curve shape bridge hung, handsome in appearance, to a kind of floating sensation of people, it is very suitable for landscaping walking-bridge.From the point of view of structural safety angle, torsion is the main feature that shaped form bridge is different from general bridge engineering；Use which kind of supporting construction to retrain self reversing of bridge structure, become shaped form bridge structure and balance the key whether set up.
Summary of the invention
For shortcoming or the deficiency of above-mentioned prior art, the technical problem to be solved in the present invention is to provide the shaped form bridge of a kind of band self-balancing supporting construction.
For solving above-mentioned technical problem, the present invention has a following composition:
The shaped form bridge of a kind of band self-balancing supporting construction, including two end abutments, a master bridge, secondary bridge and two tower self-balance structures；
Host bridge beam is the shaped form bridge that radius of curvature is different with secondary bridge；Two end bearings of host bridge beam are in end abutment, and described secondary bridge hangs on the inside edge of master bridge；
Described two tower self-balance structures are made up of two king-towers, main body cable, hoist cable and suspension rod rope；Described king-tower is made up of, at a certain distance from described main tower is located at outside master bridge and in being in tilted layout laterally main tower abutment, main tower, otic placode assembly, tower cap and a support component；Described main body cable is made up of main push-towing rope, limit cable and dorsal funciculus；
The lower end of described main tower is arranged on main tower abutment by a support component；Described support component by king-tower seat, with ball recess connection seat, support ball and reversely ball buckle and constitute, described king-tower seat is arranged on main tower abutment, described connection seat is fixed on king-tower seat, the lower end being arranged on main tower buckled by described reverse ball, described connection seat and reverse ball fasten and clamp support ball, it is achieved the infinite place of main tower lower end supports and stress balance；
The top of described main tower is provided with otic placode assembly, and described otic placode assembly is made up of main push-towing rope otic placode, limit belaying-pin plate and dorsal funciculus otic placode；Described main push-towing rope otic placode and limit belaying-pin plate are separately fixed at the both sides of dorsal funciculus otic placode, and form certain angle with dorsal funciculus otic placode；
Described main push-towing rope is between two king-towers, and its two ends are connected to main push-towing rope otic placode；One end of described limit cable is fixedly connected on the outer ledge of end abutment, and the other end is connected to limit belaying-pin plate；Described main push-towing rope and limit cable are all connected with the outer ledge of master bridge by many hoist cables, and described hoist cable is in being evenly arranged；One end of described suspension rod rope is connected to the outer ledge of master bridge, and the other end is connected to the leading section of dorsal funciculus otic placode；Described main push-towing rope, limit cable, hoist cable and suspension rod rope are the outside that space catenary is arranged in master bridge, sling unsettled for master bridge；
One end of described dorsal funciculus is fixedly connected on dorsal funciculus seat, and the other end is connected to the rearward end of dorsal funciculus otic placode by rope head and bearing pin；Described dorsal funciculus is cooperated by otic placode assembly with described main push-towing rope, limit cable and suspension rod rope, it is achieved the stress balance on main tower top.
Host bridge beam and secondary bridge are circular arc bridge, the radius R of master bridge bridge floor centrage1Radius R more than secondary bridge floor centrage2；The center of circle O of master bridge bridge floor centrage1Center of circle O with secondary bridge floor centrage2It is respectively positioned on the vertical middle section of bed rearrangement bridge, and the most concentric.
Host bridge beam is deformed steel box beam, multiple box girder segments be spliced.
Described secondary bridge is the cantilever beam of steel construction, including multiple Y shape arms arranged in normal direction；At least one Y shape arm is configured on the inner side of each box girder segment of host bridge beam.
Described Y shape arm is constituted by upper limb, lower limb with for forming the horizontal limb of secondary bridge floor, and described upper limb is articulated with the inside edge of master bridge, and described lower limb are connected with the bottom of end abutment and master bridge by secondary bridge balanced structure.
Described secondary bridge balanced structure is positioned at the lower section of master bridge, is made up of a strop and Duo Gen normal direction rope, and each Y shape arm of described secondary bridge configures a normal direction rope；The two ends of described strop are anchored in end abutment, and the lower limb of Y shape arm are articulated with strop, form the counter balance torque contrary with secondary bridge self torque direction；One end of described normal direction rope is connected to the lower limb of Y shape arm, and the other end is connected to the bottom of master bridge, and the normal force of strop passes to master bridge, the horizontal component that master bridge is formed by balance main push-towing rope, limit cable, hoist cable and suspension rod rope.
Described hoist cable is articulated with main push-towing rope or limit cable by hoist cable cord clip.
Described dorsal funciculus seat is arranged on main tower abutment, and is positioned at the outside of king-tower seat.
Described end abutment is provided with support carriers and tension compression bearing, and described support carriers and tension compression bearing are built in the gap position of end abutment.
Described two main towers, in the way of axle center is symmetrical, are erected at the outside of master bridge；The lower section of described main tower abutment is provided with inclined tube stake, and incline direction and the angle of inclination of described inclined tube stake are basically identical with the incline direction of described main tower and angle of inclination.
Compared with prior art, present invention have the advantage that
(1) master bridge of the present invention uses two tower self-balance structures of unilateral hang, and main push-towing rope, limit cable, hoist cable and suspension rod cable system are the outside that space catenary is arranged in master bridge, sling unsettled for master bridge；Main push-towing rope, limit cable, suspension rod rope and dorsal funciculus are connected to the otic placode assembly on main tower top and cooperate, it is achieved the stress balance on main tower top；By buckleing the support component that props up clamped that is interlocked with support ball with the connection seat of ball recess, reverse ball the lower end of main tower be arranged on main tower abutment, the infinite place achieving main tower lower end supports and stress balance, it is ensured that the main stress point in king-tower lower end safe and reliable.
(2) the secondary bridge of the present invention uses Y shape cantilever beam, and the upper limb of Y shape arm hangs on the inside edge of master bridge；The lower limb of Y shape arm, by the secondary bridge balanced structure being made up of strop and normal direction rope, are connected with the bottom of end abutment and master bridge；The two ends of strop are anchored in end abutment, and the lower limb of all Y shape arms are hinged with strop, form the counter balance torque being used for offsetting secondary bridge self moment of torsion；And the normal force of strop is passed to master bridge, the horizontal component that master bridge is formed by balance main push-towing rope, limit cable, hoist cable system by normal direction rope, ensure that the common effect of major-minor bridge.
(3) present invention uses dorsal funciculus seat and king-tower seat to be jointly installed on the integral type cap design of pile of main tower abutment, it is provided that the reliably secure and overall consistent king-tower strong point and dorsal funciculus anchor node.
Accompanying drawing explanation
Fig. 1: the overall structure schematic diagram of shaped form bridge of the present invention.
Fig. 2: shaped form bridge of the present invention is along the cross-sectional structure schematic diagram of suspension rod bands.
Fig. 3: the structural representation of shaped form bridge end of the present invention.
Fig. 4: the structural representation of the end abutment of shaped form bridge of the present invention.
The decomposition scheme of installation of a support component of Fig. 5: shaped form bridge main tower lower end of the present invention.
Fig. 6: the structural representation of the otic placode assembly on shaped form bridge main tower top of the present invention.
Detailed description of the invention
Below with reference to accompanying drawing, the technique effect of design, concrete structure and the generation of the specific embodiment of the invention is described further, to be fully understood from the purpose of the present invention, feature and effect.
As depicted in figs. 1 and 2, the shaped form bridge of a kind of band self-balancing supporting construction of the present invention, it is made up of the tower self-balance structure 40 of the secondary bridge of two end abutment 10, master bridges 20, one 30, two and a secondary bridge balanced structure 50.Host bridge beam 20 is the circular arc bridge that radius is different and the center of circle is the most concentric with secondary bridge 30, and wherein, the center of circle of master bridge 20, secondary bridge 30 center of circle are arranged point-blank with the intermediate point of two king-towers；A slope height of host bridge beam 20 and secondary bridge 30 is the most different from the gradient.Two end bearings of host bridge beam 20 are in end abutment 10, and described secondary bridge 30 hangs on the inside edge of master bridge 20；Described two tower self-balance structures 40 are positioned at the outside of master bridge 20, and described secondary bridge balanced structure 50 is positioned at the lower section of master bridge 20.Described two end abutments 10 and two tower self-balance structures 40 and secondary bridge balanced structure 50, the load of the whole bridge of shared.
Described end abutment 10 is concrete abutment, and its end is provided with support carriers 11 and tension compression bearing 12(is shown in Fig. 3 and Fig. 4), it is achieved support and the torsional restraint to master bridge 20 termination, it is also possible to limit master bridge 20 and offset to two ends because of the reason such as expand with heat and contract with cold.In the present embodiment, end abutment 10 uses three support carriers 11 and a tension compression bearing 12, and is built in the gap position of end abutment 10, to reach the most succinct effect.
Host bridge beam 20 is deformed steel box beam, multiple box girder segments be spliced.The centrage of host bridge beam 20 bridge floor is positioned at radius R1For on the circumference of 35.50m, overall length 90m, bridge floor width 6m.The centrage of described secondary bridge 30 bridge floor is positioned at radius R2For on the circumference of 31.50m, overall length 70m, bridge floor width 3m.The center of circle O of host bridge beam (20) bridge floor centrage1Center of circle O with described secondary bridge (30) bridge floor centrage2It is respectively positioned on the vertical middle section of bed rearrangement bridge, and the most concentric.
Described secondary bridge 30 is the cantilever beam of steel construction, and including the Y shape arm 31 of multiple steel constructions, described Y shape arm 31 is arranged in normal direction；At least one Y shape arm 31 is configured on the inner side of each box girder segment of host bridge beam 20.Described Y shape arm 31 is constituted (see Fig. 2 and Fig. 3) by upper limb 311, lower limb 312 and horizontal limb 313；Described horizontal limb 313 and its both sides side bar and intertie form secondary bridge floor；Described upper limb 311 uses hinge in the inside edge of master bridge 20, provides upper fulcrum for secondary bridge 30；Described lower limb 312 are articulated with the strop 51 of the secondary bridge balanced structure 50 that will be further elucidated hereinbelow, and provide lower fulcrum for secondary bridge 30.
Described tower self-balance structure 40 is made up of two king-towers, main body cable, hoist cable 43 and suspension rod rope 44, and wherein two king-tower is erected at the outside of master bridge 20 in the way of axle center is symmetrical.In the present invention, master bridge 20 uses the mode of monolateral suspension, two king-towers to be sling from outside by unsettled for master bridge 20 by main body cable, hoist cable 43 and suspension rod rope 44.
Described king-tower is made up of main tower abutment 411, main tower 412, otic placode assembly 413, tower cap 414 and a support component 415.Wherein, described main tower abutment 411 is concrete bearing platform；At a certain distance from described main tower 412 is located at outside master bridge 20, and in being in tilted layout laterally.
The lower end of described main tower 412 is arranged on main tower abutment 411 by a support component 415；Described support component 415 by king-tower seat 4151, with ball recess connection seat 4152, support ball 4153 and reversely ball buckle 4154 and constitute (see figure 5)；Wherein, described support ball 4153 uses cast steel ball.Described king-tower seat 4151 is arranged on main tower abutment 411, and described connection seat 4152 is fixed on king-tower seat 4151, and 4154 lower ends being arranged on main tower 412 buckled by described reverse ball, and described connection seat 4152 and reverse ball are buckled 4154 fastenings and clamped support ball 4153.The present invention use with ball recess connect seat 4152, reverse ball buckle 4154 with support ball 4153 and be interlocked the supporting construction of clamping, the infinite place achieving main tower 412 lower end supports and stress balance, it is ensured that the main stress point in main tower 412 lower end safe and reliable.
The top of described main tower 412 is provided with otic placode assembly 413, for the fixing main push-towing rope 421 of main body cable, limit cable 422 and the dorsal funciculus 423 that will be described in more detail below and suspension rod rope 44；Described otic placode assembly 413 is constituted (see figure 6) by main push-towing rope otic placode 4131, limit belaying-pin plate 4132 and dorsal funciculus otic placode 4133；Described main push-towing rope otic placode 4131 and limit belaying-pin plate 4132 are separately fixed at the both sides of dorsal funciculus otic placode 4133, and angled with dorsal funciculus otic placode 4133, form firm and stable structure.
As it is shown in figure 1, described main body cable is made up of main push-towing rope 421, limit cable 422 and dorsal funciculus 423.Described main push-towing rope 421 is between two king-towers, and its two ends are connected to the main push-towing rope otic placode 4131 on main tower 412 top；One end of described limit cable 422 is fixedly connected on the outer ledge of end abutment 10, and the other end is connected to the limit belaying-pin plate 4132 on main tower 412 top；Described main push-towing rope 421 and limit cable 422 are all connected with the outer ledge of master bridge 20 by many hoist cables 43, and described hoist cable 43 is in being evenly arranged；One end of described hoist cable 43 is connected to the outer ledge of master bridge 20, and the other end is articulated with main push-towing rope 421 or limit cable 422 by hoist cable cord clip.Described main push-towing rope 421, limit cable 422 and hoist cable 43 are arranged in space catenary, and the oblique angle of every hoist cable 43 all differs, and the difference being realized every hoist cable 43 by the oblique angle of regulation hoist cable cord clip is oblique.
One end of described suspension rod rope 44 is connected to the outer ledge of master bridge 20, and the other end is connected to the leading section of the dorsal funciculus otic placode 4133 on main tower 412 top.In the present invention, described suspension rod rope 44 and the junction point of master bridge 20 outer ledge, it is positioned on the center of circle of master bridge 20 and the perpendicular at king-tower place；As master bridge a fulcrum with increase master bridge integral rigidity.
One end of described dorsal funciculus 423 is fixedly connected on dorsal funciculus seat 4231, and the other end is connected to the rearward end of the dorsal funciculus otic placode 4133 on main tower 412 top by rope head 4232 and bearing pin 4233.In the present invention, dorsal funciculus seat 4231 is arranged on main tower abutment 411, and is positioned at the outside of king-tower seat 4151；Dorsal funciculus seat 4231 and king-tower seat 4151 is used jointly to be installed on the integral type cap design of pile of main tower abutment 411, using the teaching of the invention it is possible to provide the reliably secure and overall consistent king-tower strong point and dorsal funciculus anchor node.
As shown in Figures 2 and 3, described secondary bridge balanced structure 50 is made up of a strop 51 and Duo Gen normal direction rope 52, and each Y shape arm 31 of described secondary bridge 30 configures a normal direction rope 52.The two ends of described strop 51 are anchored in end abutment 10, and the lower limb 312 of Y shape arm 31 are articulated with strop 51；One end of described normal direction rope 52 is connected to the lower limb 312 of Y shape arm 31, and the other end is connected to the bottom of master bridge 20.In the present invention, tower self-balance structure 40, from outer side mounting master bridge 20, undertakes master bridge 20 to the moment of torsion turned inside out, and secondary bridge 30 hangs on the inside edge of master bridge 20, then be further exacerbated by the carrying of tower self-balance structure 40.By secondary bridge balanced structure 50, the lower limb 312 of all Y shape arms 31 are articulated with strop 51, and the two ends of strop 51 are anchored in end abutment 10, are formed with pair bridge 30 to the contrary counter balance torque of self torque direction turned inside out, it is used for offsetting self moment of torsion of secondary bridge 30, to reach the balance of power.Of course through the prestressing force improving strop 51, it is possible to reduce the carrying that master bridge 20 is applied by self moment of torsion of secondary bridge 30, but the burden that excessive strop 51 prestressing force can cause main body cable is excessive.By arranging normal direction rope 52 below master bridge 20, the normal force of strop 51 is delivered to master bridge 20, provide the horizontal direction normal direction tension force to the center of circle, with balance main push-towing rope 421, limit cable 422, hoist cable 43 and the horizontal component to master bridge of suspension rod rope 44 System forming, ensure that the common effect of major-minor bridge 20,30.
In the present invention, the lower section of described end abutment 10 and main tower abutment 411 is equipped with the foundation pile of long 50m steel pipe pile foundation.For solving horizontal force problem, part steel-pipe pile uses inclined tube stake and whole pores is filled with concrete, to increase its rigidity.Meanwhile, incline direction and the angle of inclination of the inclined tube stake that described main tower abutment 411 uses are basically identical with the inclination direction of described main tower 412 and angle of inclination, to resist horizontal component, reduce into the horizontal displacement after bridge.
In being embodied as, for promoting the demand of durability and aesthetics, main push-towing rope 421, limit cable 422, hoist cable 43, suspension rod rope 44 and strop 51 use the zigzag of import to close naked rope, and are provided with corrosion-inhibiting coating.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; the principle of the simply present invention described in above-described embodiment and description; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within the range of claimed invention.
Claims (10)
1. the shaped form bridge of a band self-balancing supporting construction, it is characterised in that: include two end abutments (10), a master bridge (20), secondary bridge (30) and two tower self-balance structures (40)；
Host bridge beam (20) is the shaped form bridge that radius of curvature is different with secondary bridge (30)；Two end bearings of host bridge beam (20) are in end abutment (10), and described secondary bridge (30) hangs on the inside edge of master bridge (20)；
Described two tower self-balance structures (40) are made up of two king-towers, main body cable, hoist cable (43) and suspension rod rope (44)；Described king-tower is made up of main tower abutment (411), main tower (412), otic placode assembly (413), tower cap (414) and a support component (415), at a certain distance from described main tower (412) is located at master bridge (20) outside and in being in tilted layout laterally；Described main body cable is made up of main push-towing rope (421), limit cable (422) and dorsal funciculus (423)；
The lower end of described main tower (412) is arranged on main tower abutment (411) by a support component (415)；Described support component (415) by king-tower seat (4151), with ball recess connection seat (4152), support ball (4153) and reverse ball is buckled (4154) and constituted, described king-tower seat (4151) is arranged on main tower abutment (411), described connection seat (4152) is fixed on king-tower seat (4151), described reverse ball is buckled (4154) and is arranged on the lower end of main tower (412), described connection seat (4152) and reverse ball are buckled (4154) fastening and are clamped support ball (4153), it is achieved the infinite place of main tower (412) lower end supports and stress balance；
The top of described main tower (412) is provided with otic placode assembly (413), and described otic placode assembly (413) is made up of main push-towing rope otic placode (4131), limit belaying-pin plate (4132) and dorsal funciculus otic placode (4133)；Described main push-towing rope otic placode (4131) and limit belaying-pin plate (4132) are separately fixed at the both sides of dorsal funciculus otic placode (4133), and form certain angle with dorsal funciculus otic placode (4133)；
Described main push-towing rope (421) is between two king-towers, and its two ends are connected to main push-towing rope otic placode (4131)；The one end on described limit cable (422) is fixedly connected on the outer ledge of end abutment (10), and the other end is connected to limit belaying-pin plate (4132)；Described main push-towing rope (421) and limit cable (422) are all connected with the outer ledge of master bridge (20) by many hoist cables (43), and described hoist cable (43) is in being evenly arranged；One end of described suspension rod rope (44) is connected to the outer ledge of master bridge (20), and the other end is connected to the leading section of dorsal funciculus otic placode (4133)；Described main push-towing rope (421), limit cable (422), hoist cable (43) and suspension rod rope (44) are arranged in the outside of master bridge (20) in space catenary, sling unsettled for master bridge (20)；
One end of described dorsal funciculus (423) is fixedly connected on dorsal funciculus seat (4231), and the other end is connected to the rearward end of dorsal funciculus otic placode (4133) by rope head (4232) and bearing pin (4233)；Described dorsal funciculus (423) is cooperated by otic placode assembly (413) with described main push-towing rope (421), limit cable (422) and suspension rod rope (44), it is achieved the stress balance on main tower (412) top.
The shaped form bridge of a kind of band self-balancing supporting construction the most according to claim 1, it is characterised in that: host bridge beam (20) and secondary bridge (30) they are circular arc bridge, the radius R of master bridge (20) bridge floor centrage1Radius R more than secondary bridge (30) bridge floor centrage2；The center of circle O of master bridge (20) bridge floor centrage1Center of circle O with secondary bridge (30) bridge floor centrage2It is respectively positioned on the vertical middle section of bed rearrangement bridge, and the most concentric.
The shaped form bridge of a kind of band self-balancing supporting construction the most according to claim 1 and 2, it is characterised in that: host bridge beam (20) is deformed steel box beam, multiple box girder segments be spliced.
The shaped form bridge of a kind of band self-balancing supporting construction the most according to claim 3, it is characterised in that: described secondary bridge (30) is the cantilever beam of steel construction, including multiple Y shape arms (31) arranged in normal direction；At least one Y shape arm (31) is configured on the inner side of each box girder segment of host bridge beam (20).
The shaped form bridge of a kind of band self-balancing supporting construction the most according to claim 4, it is characterized in that: described Y shape arm (31) is constituted by upper limb (311), lower limb (312) with for forming the horizontal limb (313) of secondary bridge floor, described upper limb (311) is articulated with the inside edge of master bridge (20), and described lower limb (312) are connected with the bottom of end abutment (10) and master bridge (20) by secondary bridge balanced structure (50).
The shaped form bridge of a kind of band self-balancing supporting construction the most according to claim 5, it is characterized in that: described secondary bridge balanced structure (50) is positioned at the lower section of master bridge (20), it is made up of a strop (51) and many normal direction ropes (52), each Y shape arm (31) piece normal direction rope (52) of upper configuration of described secondary bridge (30)；The two ends of described strop (51) are anchored in end abutment (10), and the lower limb (312) of Y shape arm (31) are articulated with strop (51), form the counter balance torque contrary with secondary bridge (30) self torque direction；One end of described normal direction rope (52) is connected to the lower limb (312) of Y shape arm (31), the other end is connected to the bottom of master bridge (20), the normal force of strop (51) is passed to master bridge (20), the horizontal component that master bridge (20) is formed by balance main push-towing rope (421), limit cable (422), hoist cable (43) and suspension rod rope (44).
The shaped form bridge of a kind of band self-balancing supporting construction the most according to claim 1 and 2, it is characterised in that: described hoist cable (43) is articulated with main push-towing rope (421) or limit cable (422) by hoist cable cord clip.
The shaped form bridge of a kind of band self-balancing supporting construction the most according to claim 1 and 2, it is characterised in that: described dorsal funciculus seat (4231) is arranged on main tower abutment (411), and is positioned at the outside of king-tower seat (4151).
The shaped form bridge of a kind of band self-balancing supporting construction the most according to claim 1 or claim 2, it is characterized in that: described end abutment (10) is provided with support carriers (11) and tension compression bearing (12), described support carriers (11) and tension compression bearing (12) and is built in the gap position of end abutment (10).
The shaped form bridge of a kind of band self-balancing supporting construction the most according to claim 1 and 2, it is characterised in that: described two main towers (412), in the way of axle center is symmetrical, are erected at the outside of master bridge (20)；The lower section of described main tower abutment (411) is provided with inclined tube stake, and incline direction and the angle of inclination of described inclined tube stake are basically identical with the incline direction of described main tower (412) and angle of inclination.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN114575235A (en) * | 2022-04-09 | 2022-06-03 | 中交二公局第五工程有限公司 | Bridge structure with separated people and vehicles |
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| CN114351566A (en) * | 2022-01-04 | 2022-04-15 | 厦门市市政工程设计院有限公司 | Construction method of annular suspended bridge deck middle-mounted leaning tower multi-anchoring system cable-stayed bridge |
| CN114575235A (en) * | 2022-04-09 | 2022-06-03 | 中交二公局第五工程有限公司 | Bridge structure with separated people and vehicles |
| CN114575235B (en) * | 2022-04-09 | 2024-01-26 | 中交二公局第五工程有限公司 | Bridge structure with separated vehicles and people |
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