CN109024234A - A kind of single-screw arch and suspension cable combined bridge structural system - Google Patents

A kind of single-screw arch and suspension cable combined bridge structural system Download PDF

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Publication number
CN109024234A
CN109024234A CN201811050228.6A CN201811050228A CN109024234A CN 109024234 A CN109024234 A CN 109024234A CN 201811050228 A CN201811050228 A CN 201811050228A CN 109024234 A CN109024234 A CN 109024234A
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arch
bridge deck
spiral
bridge
suspension cable
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CN201811050228.6A
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CN109024234B (en
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吴亮秦
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East China Jiaotong University
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East China Jiaotong University
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D12/00Bridges characterised by a combination of structures not covered as a whole by a single one of groups E01D2/00 - E01D11/00
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D11/00Suspension or cable-stayed bridges
    • E01D11/02Suspension bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D4/00Arch-type bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/20Concrete, stone or stone-like material
    • E01D2101/24Concrete
    • E01D2101/26Concrete reinforced
    • E01D2101/268Composite concrete-metal

Abstract

The invention discloses a kind of single-screw arches and suspension cable combined bridge structural system, including bridge deck, spiral arch, hoist cable and suspension cable;Single spiral arch is longitudinally wound on outside bridge deck along bridge deck, and the spiral arch arch bottom below bridge deck is supported on pile foundation support table;Support is equipped at the side bottom of bridge deck, seat supports are in the support support being located on the inside of spiral arch;Hoist cable upper end is connected in the arch dome portions of the spiral above bridge deck, and lower end is then connected at the longitudinal central axis line of bridge deck;The corresponding spiral that is anchored at of suspension cable that bridge deck two sides are arranged in encircles upper and bridge deck end.The present invention is handsome in appearance, the driving visual field is good, easy for construction, overall structure safety and stability.

Description

A kind of single-screw arch and suspension cable combined bridge structural system
Technical field
The invention belongs to bridge structure technical fields, and in particular to a kind of single-screw arch and suspension cable combined bridge structural body System.
Background technique
Spiral arch bridge is a kind of novel space arch bridge, and external spiral arch bridge has Singapore's double helix bridge, which behaves Row bridge, overall length 280m, two helical curves are mutually wound the main stress system of bridge span structure.
Domestic spiral arch bridge has Beijing San Shanqiao, which sets two-way 4 lane, and there are pavement, overall length 452m, three mountains in two sides Bridge also uses double helix arch structure, and in top and bottom, cross support, bridge floor pass through high-strength steel cable to two spiral arches each other It is suspended to bridge structure, the running surface that cable wire is constituted encloses the inner space of bridge.
Spiral arch bridge uses double helix arch structure not only novel appearance, beauty, but also is conducive to enhancing structure monolithic stability, Guarantee bridge ultimate bearing and normal use requirement.However, double helix arch forms bridge deck to encircle and shrouds effect, influence to go The vehicle visual field.In addition, the difficulty of construction for the Spatial Cable net system arranged on cross one another two double helix spaces arch and arch also compared with Greatly, it is unfavorable for the practice of such bridge type.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of single-screw arches and suspension cable combined bridge structural system, to disappear Except defect present in existing double helix bridge, while having both the structural advantage of double helix arch.
In order to achieve the above objectives, the invention provides the following technical scheme:
A kind of single-screw arch and suspension cable combined bridge structural system, are overlapped on the bridge deck on abutment including both ends, also wrap Include spiral arch, hoist cable and suspension cable;Single spiral arch is longitudinally wound on outside bridge deck along bridge deck and spiral arch both ends are anchored at abutment On, the spiral arch arch bottom below bridge deck is supported on pile foundation support table;Support, support are equipped at the side bottom of bridge deck It is supported in the support support for being located at spiral arch inside;Hoist cable upper end is connected in the arch dome portions of the spiral above bridge deck, Lower end is then connected at the longitudinal central axis line of bridge deck;The corresponding spiral that is anchored at of suspension cable that bridge deck two sides are arranged in encircles upper and bridge The end of face system.
Further, bridge deck includes the stringer and crossbeam and the floorings being layered on stringer and crossbeam of orthogonal setting, is indulged Oblique beam is also tiltedly equipped between beam and crossbeam.
Further, crossbeam both ends set otic placode, and suspension cable passes through the preformed hole on otic placode;The bottom at oblique beam both ends is arranged in support It is fixedly connected at portion and with the support support of spiral arch inside.
Further, the crossbeam in bridge deck is fish belly trabeation, and stringer uses inverted T shaped section.
Further, hoist cable includes straight hoist cable and oblique hoist cable, and straight hoist cable is connected to vertically between spiral arch and bridge deck, a plurality of Oblique hoist cable is symmetricly set on straight hoist cable two sides.
Further, the angle α between oblique hoist cable and bridge deck vertical section meets 90 ° of 60 °≤α <, and oblique hoist cable and bridge deck are horizontal Angle β between section meets 90 ° of 65 °≤β <.
Further, the linear space ellipse line to advance along bridge deck longitudinal spiral of spiral arch, the major and minor axis of ellipse It immobilizes.
Further, spiral arch is concrete filled steel tube, is circular including the beam that section is rectangular lattice and section Tube body, round tube body packet is outside rectangular lattice beam.
Further, it is located in the tube body of bridge deck absolute altitude or less segment in spiral arch and is filled with slightly expanded concrete.
Further, spiral arch by bridge deck be separated out in across with end bay, end bay span be in across span 0.75~0.85 Times.
The beneficial effects of the present invention are:
(1) handsome in appearance, spiral arch gentle curve matches with succinct bridge deck, and the crossbeam of bridge deck uses fish belly sill Formula construction, collectively forms U-shaped component with two sides otic placode, bridge integral structural system is lightly beautiful.
(2) the driving visual field is good, is arranged on spiral arch using single cable plane, and the angle in oblique hoist cable and bridge cross section is not less than 65 °, Two sides suspension cable height is relatively low, so that bridge floor driving is unobscured, nothing shrouds sense.
(3) easy for construction, Orthotropic Steel Bridge Deck, in length and breadth beam body system, spiral arch are steel prefabricated components, using segment Assembling method construction, construction technology is mature, setting up speed, fast, construction quality is easy to guarantee.
(4) overall structure safety and stability, hoist cable, the suspension cable across otic placode at left and right sides of crossbeam and oblique beam both ends bottom Support forms three layers of support to bridge deck, and structural strength, rigidity and stability can meet related specification requirement.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out Illustrate:
Fig. 1 is main view of the invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the side view of Fig. 1;
Fig. 4 is the cross-section diagram of suspension cable and spiral arch cooperation;
Fig. 5 is the cross-section diagram of oblique hoist cable and spiral arch cooperation;
Fig. 6 is the cross-section diagram of straight hoist cable and spiral arch cooperation;
Fig. 7 is beam arrangement schematic diagram in length and breadth;
Fig. 8 is bridge deck cross-section diagram.
In figure, 1- spiral arch, the straight hoist cable of 2-, the oblique hoist cable of 3-, 4- suspension cable, 5- crossbeam, 6- stringer, 7- oblique beam, 8- bridge floor Plate, 9- otic placode, 10- support, 11- support support, 12- pedestal, 13- pile foundation support table, 14- abutment, across 16- end bay in 15-.
Specific embodiment
Below in conjunction with attached drawing, a preferred embodiment of the present invention will be described in detail.
A kind of single-screw arch and suspension cable combined bridge structural system, are overlapped on the bridge deck on abutment 14 including both ends, also Including spiral arch 1, hoist cable and suspension cable 4;Single spiral arch 1 is longitudinally wound on outside bridge deck along bridge deck and spiral encircles the anchoring of 1 both ends On abutment 14, the 1 arch bottom of spiral arch below bridge deck is supported on pile foundation support table 13 by the pedestal 12 of bottom;Bridge floor Support 10 is equipped at the side bottom of system, support 10 is supported in the support support 11 of spiral arch inside;Hoist cable upper end is solid It is connected in the spiral being located above bridge deck and encircles 1 dome portions, lower end is then connected at the longitudinal central axis line of bridge deck;It is arranged in bridge floor It is that the suspension cables 4 of two sides corresponding is anchored on spiral arch 1 and the end of bridge deck.In the structural system, single spiral arch 1 is edge Bridge deck is longitudinally inclined cross bridge floor, to bear superstructure perseverance, mobile load;And hoist cable is then the first layer support of bridge deck, is hanged Rope 4 is supported as the second layer of bridge deck, and support 10 is that the third layer of bridge deck supports, and the counter-force of each layer support is all encircleed by spiral 1 undertakes, and is finally transmitted to the pile foundation support table 13 of abutment 14, arch bottom stage seat 12 and its bottom.Three layers of support are so that the structural system Intensity, rigidity and stability be all satisfied related specification requirement.
In the structural system, the linear space ellipse line to advance along bridge deck longitudinal spiral of spiral arch 1, ellipse Major and minor axis immobilizes, and ratio of semi-minor axis length is between 1.5~3.0.Spiral arch 1 is concrete filled steel tube, includes section It is circular tube body 102 for the beam 101 of rectangular lattice and section, the round packet of tube body 102 is outside rectangular lattice beam 101.Spiral shell It is located in the tube body of bridge deck absolute altitude or less segment in rotation arch 1 and is filled with slightly expanded concrete.The spiral encircles 1 both ends and is anchored at bridge On platform 14, the pedestal 12 for encircleing bottom is supported on pile foundation support table 13, and mixed filled with microdilatancy in the tube body of segment below absolute altitude Solidifying soil ensures that reliability of the spiral arch 1 as stress system so that the segment is practical to play bridge pier.It needs to illustrate , the preferred stainless steel tube of tube body 102 herein.
In the structural system, bridge deck includes the stringer 6 of orthogonal setting and crossbeam 5 and is layered on stringer 6 and crossbeam 5 Floorings 8, between stringer 6 and crossbeam 5 also tiltedly be equipped with oblique beam 7.Specifically, floorings 8 are Orthotropic Steel Bridge Deck, crossbeam 5 be fish belly trabeation, and both ends are equipped with otic placode 9, and suspension cable 4 passes through the preformed hole on otic placode 9;And stringer 7 then uses inverted T shaped section Face;For the oblique angles of oblique beam 7 and 8 longitudinal axis of floorings in 40 °~50 ° ranges, support 10 is arranged at 7 both ends of oblique beam At bottom, 7 both ends bottom support bracket of oblique beam, 10 line is located at the vertical section of pile foundation support table 13 with 8 longitudinal axis intersection point of floorings Near axial location, support 10 and the support support 11 of 1 inside of spiral arch are fixedly connected with, to ensure the uniformity and spiral of power distribution Encircle the stability and reliability supported to bridge deck.
The structural system is encircleed by single spiral to match with succinct bridge deck, so that bridge integral structural system is light and handy It is beautiful.Bridge deck and spiral arch are steel prefabricated components, and the construction of section assembling method can be used, and set up speed fastly and construction matter Amount is easy to guarantee.
In the structural system, hoist cable includes straight hoist cable 2 and oblique hoist cable 3, and straight hoist cable 2 is connected to spiral arch 1 and bridge floor vertically Between system, a plurality of oblique hoist cable 3 is symmetricly set on straight 2 two sides of hoist cable.Specifically, straight 2 upper end of hoist cable, which is connected in spiral, encircles 1 vault most At high point, lower end is anchored at vertically at 5 center of crossbeam of bridge deck;And tiltedly hoist cable 3 is then distributed in straight hoist cable 2 in a certain range Two sides, wherein 3 upper end of oblique hoist cable and spiral arch 1 dome portions (non-highest point) are connected, anchoring lower ends are at the crossbeam center of bridge deck Place.Straight hoist cable 2 forms single Spatial Cable face with oblique hoist cable 3.To avoid the excessive longitudinal force of beam body system receiving in length and breadth, hoist cable and bridge floor It is angle α satisfaction 60 °≤α < 90 ° of the angle of vertical section not less than 60 °, i.e., between oblique hoist cable 3 and bridge deck vertical section;To protect The bridge up train visual field is demonstrate,proved, hoist cable and the angle in bridge deck cross section are not less than 65 °, i.e., between oblique hoist cable 3 and bridge deck cross section Angle β meets 90 ° of 65 °≤β <.
Preferably, spiral arch 1 by bridge deck be separated out in across with three unequal spans of end bay, 16 span of end bay be in across 15 across 0.75~0.85 times of degree.
It is illustrated by taking a specific embodiment as an example below:
In the structural system, spiral arch 1 by bridge deck be separated out in across with three unequal spans of end bay, wherein in across 15 across footpaths No more than 150m, 16 span of end bay be in 0.75~0.85 times across 15 spans.
Crossbeam 5 in bridge deck uses fish belly trabeation, longitudinal pitch 5m~8m, sets otic placode 8 at left and right sides of crossbeam 5, Crossbeam 5 and otic placode 8 are connected by screw bolts and are formed U-shaped structure, keep bridge integral structural system lightly beautiful.Stringer 6 is using T Type section, 2.0~3.0m of horizontal spacing, 6 height of stringer are 0.8~0.9 times of 5 height of crossbeam.Oblique cross in beam body system in length and breadth Beam 7 and crossbeam 5 are contour.
Straight hoist cable 2 and oblique hoist cable 3 are set in 1 top a certain range of spiral arch, straight hoist cable 2 forms single Spatial Cable with oblique hoist cable 3 Face.
Bridge deck each side sets 3 suspension cables, and 4 one end of suspension cable is anchored on side spiral arch, and the other end is anchored in master Beam end, suspension cable 4 use low sag ratio, and value is between 1/15~1/45;The height and tilt angle of otic placode 9 longitudinally become along bridge Change to adapt to suspension cable 4 along the straight line line style of bridge longitudinal direction.
The oblique angles of oblique beam 7 and bridge longitudinal axis in bridge deck are in 40 °~50 ° ranges, 7 both ends bottom of oblique beam 10 line of support and bridge longitudinal axis intersection point are located near the vertical section axial location of pile foundation support table 13, adjacent pile foundation support table 13 The distance between vertical section axis is in bridge across 15 across footpaths, and girder support center and neighboring piles cushion cap 13 is vertical disconnected at abutment 14 The distance between face axis is 16 across footpath of bridge end bay.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention and not to limit it, although logical It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be Various changes are made to it in form and in details, without departing from claims of the present invention limited range.

Claims (10)

1. a kind of single-screw arch and suspension cable combined bridge structural system, are overlapped on the bridge deck on abutment, feature including both ends It is: further includes spiral arch, hoist cable and suspension cable;Single spiral arch is longitudinally wound on outside bridge deck along bridge deck and spiral arch both ends anchor Gu the spiral arch arch bottom below bridge deck is supported on pile foundation support table on abutment;It is equipped at the side bottom of bridge deck Support, seat supports are in the support support being located on the inside of spiral arch;Hoist cable upper end is connected in the spiral above bridge deck Encircle dome portions, lower end is then connected at the longitudinal central axis line of bridge deck;The suspension cable correspondence that bridge deck two sides are arranged in is anchored at spiral shell Upper and bridge deck end is encircleed in rotation.
2. single-screw according to claim 1 arch and suspension cable combined bridge structural system, it is characterised in that: bridge deck includes The stringer and crossbeam of orthogonal setting and the floorings being layered on stringer and crossbeam, are also tiltedly equipped with oblique beam between stringer and crossbeam.
3. single-screw arch according to claim 2 and suspension cable combined bridge structural system, it is characterised in that: crossbeam both ends are set Otic placode, suspension cable pass through the preformed hole on otic placode;Support be arranged at the bottom at oblique beam both ends and with the support on the inside of spiral arch Support is fixedly connected with.
4. single-screw arch according to claim 3 and suspension cable combined bridge structural system, it is characterised in that: in bridge deck Crossbeam is fish belly trabeation, and stringer uses inverted T shaped section.
5. single-screw arch according to claim 1 and suspension cable combined bridge structural system, it is characterised in that: hoist cable includes straight Hoist cable and oblique hoist cable, straight hoist cable are connected to vertically between spiral arch and bridge deck, and a plurality of oblique hoist cable is symmetricly set on straight hoist cable two Side.
6. single-screw arch according to claim 5 and suspension cable combined bridge structural system, it is characterised in that: oblique hoist cable and bridge Angle α between face system vertical section meets 90 ° of 60 °≤α <, and the angle β between oblique hoist cable and bridge deck cross section meets 65 °≤β < 90°。
7. any the single-screw arch and suspension cable combined bridge structural system according to claim 1~6, it is characterised in that: spiral shell The linear space ellipse line to advance along bridge deck longitudinal spiral of arch is revolved, the major and minor axis of ellipse immobilizes.
8. single-screw arch according to claim 7 and suspension cable combined bridge structural system, it is characterised in that: spiral arch is steel Pipe concrete structure is circular tube body including the beam that section is rectangular lattice and section, and round tube body packet is in rectangular lattice Outside formula beam.
9. single-screw arch according to claim 8 and suspension cable combined bridge structural system, it is characterised in that: position in spiral arch Slightly expanded concrete is filled with below the bridge deck absolute altitude in the tube body of segment.
10. single-screw arch according to claim 9 and suspension cable combined bridge structural system, it is characterised in that: spiral arch will Bridge deck be separated out in across with end bay, end bay span be in 0.75~0.85 times across span.
CN201811050228.6A 2018-09-10 2018-09-10 Single spiral arch and suspension cable combined bridge structure system Active CN109024234B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110747725A (en) * 2019-10-25 2020-02-04 中铁大桥勘测设计院集团有限公司 Plane self-balancing inclined-span arch structure system and construction method thereof
CN111809501A (en) * 2020-08-18 2020-10-23 中交第一公路勘察设计研究院有限公司 Arched bent suspension bridge structure
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
CN113605205A (en) * 2021-07-05 2021-11-05 中建七局安装工程有限公司 DNA type double-helix overbridge modeling construction method based on BIM

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CN205205640U (en) * 2015-11-30 2016-05-04 中铁第四勘察设计院集团有限公司 Spiral diplopore continuous arch bridge
JP2017078296A (en) * 2015-10-20 2017-04-27 ケイコン株式会社 Connected concrete block body for arch bridge structure, and deck-type arch bridge
CN107761542A (en) * 2017-11-14 2018-03-06 江苏科技大学 One kind arch oblique pull combined system bridge and its construction method
CN208830124U (en) * 2018-09-10 2019-05-07 华东交通大学 A kind of combined bridge structural system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017078296A (en) * 2015-10-20 2017-04-27 ケイコン株式会社 Connected concrete block body for arch bridge structure, and deck-type arch bridge
CN205205640U (en) * 2015-11-30 2016-05-04 中铁第四勘察设计院集团有限公司 Spiral diplopore continuous arch bridge
CN107761542A (en) * 2017-11-14 2018-03-06 江苏科技大学 One kind arch oblique pull combined system bridge and its construction method
CN208830124U (en) * 2018-09-10 2019-05-07 华东交通大学 A kind of combined bridge structural system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110747725A (en) * 2019-10-25 2020-02-04 中铁大桥勘测设计院集团有限公司 Plane self-balancing inclined-span arch structure system and construction method thereof
CN110747725B (en) * 2019-10-25 2021-01-15 中铁大桥勘测设计院集团有限公司 Plane self-balancing inclined-span arch structure system and construction method thereof
CN111809501A (en) * 2020-08-18 2020-10-23 中交第一公路勘察设计研究院有限公司 Arched bent suspension bridge structure
CN113605205A (en) * 2021-07-05 2021-11-05 中建七局安装工程有限公司 DNA type double-helix overbridge modeling construction method based on BIM
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

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