CN107893368A - Large span floating system cable stayed bridge provided with inclined type bridge earthquake resistance damper - Google Patents

Large span floating system cable stayed bridge provided with inclined type bridge earthquake resistance damper Download PDF

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Publication number
CN107893368A
CN107893368A CN201711115782.3A CN201711115782A CN107893368A CN 107893368 A CN107893368 A CN 107893368A CN 201711115782 A CN201711115782 A CN 201711115782A CN 107893368 A CN107893368 A CN 107893368A
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China
Prior art keywords
bridge
earthquake resistance
inclined type
damper
type bridge
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CN201711115782.3A
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Chinese (zh)
Inventor
胡可
杨晓光
曹光伦
马祖桥
汪正兴
陈亮
何金武
王凯
黄维树
王胜斌
杨大海
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Anhui Transportation Holding Group Co Ltd
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Anhui Transportation Holding Group Co Ltd
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Priority to CN201711115782.3A priority Critical patent/CN107893368A/en
Publication of CN107893368A publication Critical patent/CN107893368A/en
Pending legal-status Critical Current

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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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The present invention relates to a kind of large span floating system cable stayed bridge provided with inclined type bridge earthquake resistance damper, large span floating system cable stayed bridge includes girder and bridge tower, 4 inclined type bridge earthquake resistance dampers are provided with every bridge tower, on the basis of the bridge tower center on horizontal plane, each inclined type bridge earthquake resistance damper is laid in horizontal, vertical bridge to symmetrical, there is a tilting drift angle in the single damper axis of each inclined type bridge earthquake resistance damper, with girder longitudinal axis to suppress dynamic response of the girder under geological process.Compared with prior art, the present invention realize with one group of multiple inclined type bridge earthquake resistance damper it is simultaneously accurate, smoothly control target of the bridge longitudinal and transverse two to seismic response, expanded the theory and practical space of bridge earthquake resistance damping.Bridge working condition and stress are good, and material usage reduces, and technology and economic benefit are obvious.

Description

Large span floating system cable stayed bridge provided with inclined type bridge earthquake resistance damper
Technical field
The invention belongs to bridge earthquake resistance technical field, and in particular to it is a kind of provided with inclined type bridge earthquake resistance damper it is big across Spend floating system cable stayed bridge.
Background technology
With the development of Bridges in Our Country building technology, Longspan Bridge is largely built.Wherein, it is extending structure vibration week Phase, king-post earthquake stress is reduced, large span floating system bridge application is even more more and more.But due to floating system constraint compared with Few, horizontal, vertical bridge of the girder under geological process is excessive to displacement, it is necessary to take measures to be controlled.
Large span floating system bridge is often mostly to use damper with earthquake resistant construction at present.Damper is generally longitudinally set, Spacing bearing is laterally set.In this way, girder longitudinal earthquake response is effectively controlled, but structure lateral seismic force is still larger, and Cross spacing bearing need to adapt to girder length travel, and tectonic sieving acquires a certain degree of difficulty.Lateral damper is set, is similarly subjected to girder The puzzlement of length travel.
Recently the oblique damper restriction system of bridge main beam proposed, set axis and girder longitudinal axis inclined one group of damper From one angle, girder is provided simultaneously vertical bridge to and direction across bridge damper restriction, solved from mechanism in longitudinal and transverse bridge to knot Effective control of structure seismic response.But also there is many technical blank, the ginseng of damper in this innovation damper restriction system Number relation, tilting mode and operating characteristic are major issue therein.
The content of the invention
The defects of functionally existing for above-mentioned traditional bridge earthquake resistant construction and New Damping constrained system are in practical Blank being present, the present invention provides a kind of method for arranging of inclined type bridge earthquake resistance damper, and provided with inclined type bridge earthquake resistance The large span floating system cable stayed bridge of damper.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of large span floating system cable stayed bridge provided with inclined type bridge earthquake resistance damper, large span floating system oblique pull Bridge includes girder and bridge tower, 4 inclined type bridge earthquake resistance dampers is provided with every bridge tower, with the bridge tower on horizontal plane On the basis of the heart, each inclined type bridge earthquake resistance damper is laid in horizontal, vertical bridge to symmetrical, the list of each inclined type bridge earthquake resistance damper There is a tilting drift angle in individual damper axis, with girder longitudinal axis to suppress dynamic response of the girder under geological process.
The Work-corner of each inclined type bridge earthquake resistance damper is 20 °~40 °.
The single damper of inclined type bridge earthquake resistance damper is horizontal positioned, and one end passes through beam-ends multi-directional deflection hinge connection In girder, the other end is hingedly coupled to bridge tower sill by tower end multi-directional deflection.
The beam-ends multi-directional deflection hinge is ball pivot, if horizontal support otic placode.
The tower end multi-directional deflection hinge cuts with scissors for axle, if horizontal vertical twin shaft.
The tilting drift angle is 30 °.Vertical, horizontal motion of the tilting drift angle to structure can produce axial movement reaction, enter And carry out damping energy dissipation.Single damper can reach while control horizontal, vertical effect of the bridge to geological process.
There is this structure between the damping force F of inclined type bridge earthquake resistance damper, damped coefficient C, speed v, Rate Index α to close It is F=Cvα, inclined type bridge earthquake resistance damper (4) axis and under the conditions of girder longitudinal axis angle is β, it is horizontal, longitudinal direction is equivalent Damping rate index is still α,
Damper direction across bridge equivalent damping power Ft, Equivalent damping coefficient CtFor：
Ft=Fsin β=C (sin β)1+α·vt α=Ct·vt α (1)
Ct=c (sin β)1+α (2)
Damper indulges bridge to equivalent damping power F1, Equivalent damping coefficient C1For：
Fl=Fcos β=C (cos β)1+α·vl α=Cl·vl α (3)
Cl=C (cos β)1+α (4)
Horizontal stroke, bridge is indulged to Equivalent damping coefficient Ct、ClThe parameters relationship of following fixation be present：
In formula, vt、vlFor direction across bridge, bridge is indulged to relative velocity.
The inclined type bridge earthquake resistance damper has specific setting pattern.One group of multiple damper oblique angle by it is horizontal, Vertical bridge is laid to symmetrical, can reduce single damper Equivalent damping coefficient Ct、ClChange with angle beta, operating characteristic bar is unstable Phenomenon, there is provided stably horizontal, indulge bridge to combination equivalent damping power.
One group of multiple damper direction across bridge combination equivalent damping power ∑ Ft, combination Equivalent damping coefficient ∑ CtFor：
∑Ft=∑ Ct·vt α (6)
∑Ct=Kt·C (7)
One group of multiple damper indulges bridge to combination equivalent damping power ∑ Fl, combination Equivalent damping coefficient ∑ ClFor：
∑Fl=∑ Cl·vl α (8)
∑Cl=Kl·C (9)
In formula, Kt、KlFor basicly stable constant.
One group of multiple inclined type bridge earthquake resistance damper combines cloth by longitudinal and transverse bridge to the symmetrical principle in oblique angle in the present invention If the phenomenon of single damper unstable working condition can be overcome, there is provided stable longitudinal and transverse bridge is to damping.The present invention realizes With one group of multiple inclined type bridge earthquake resistance damper it is simultaneously accurate, smoothly control target of the bridge longitudinal and transverse two to seismic response, The theory and practical space of bridge earthquake resistance damping are expanded.Bridge working condition and stress are good, material usage drop Low, technology and economic benefit are obvious.
Compared with prior art, advantageous effects of the invention embody in the following areas：
Inclined type bridge earthquake resistance damper realizes while accurately, smoothly controls bridge longitudinal and transverse two to seismic response Target, the theory and practical space of bridge earthquake resistance damping are expanded.
Inclined type bridge earthquake resistance damper combines cloth by longitudinal and transverse bridge with one group of multiple damper to the symmetrical principle in oblique angle If ensure that the reliable of structure and stably, the design and calculating of structure are simplified, new think of is provided for the solution of Similar Problems Road.
Inclined type bridge earthquake resistance damper and bridge structure working condition and stress are good, and material usage reduces, skill Art and economic benefit are obvious.
Brief description of the drawings
Fig. 1 is large span floating system cable stayed bridge rough package drawing.
Fig. 2 is Fig. 1 structural computational model schematic diagram.
Fig. 3 is that inclined type bridge earthquake resistance damper facade of the invention in Fig. 1 arranges schematic diagram.
Fig. 4 is inclined type bridge earthquake resistance damper facade organigram of the invention in Fig. 3.
Fig. 5 is inclined type bridge earthquake resistance damper Horizontal Seismic schematic diagram of the invention in Fig. 3.
Fig. 6 is inclined type bridge earthquake resistance damper longitudinal direction antidetonation schematic diagram of the invention in Fig. 3.
Fig. 7 is inclined type bridge earthquake resistance damper horizontal layout schematic diagram of the invention in Fig. 3.
Sequence number in upper figure：Large span floating system cable stayed bridge 1, bridge tower 2, girder 3, inclined type bridge earthquake resistance damper 4, beam Hold multi-directional deflection hinge 5, tower end multi-directional deflection hinge 6, bridge tower sill 7, bridge tower center 8, tilting drift angle 9, Work-corner 10.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
Referring to Fig. 1, large span floating system cable stayed bridge 1, to suppress dynamic response of the girder 3 under geological process, use Inclined type bridge earthquake resistance damper 4.
Referring to Fig. 2, based on structural computational model, structural seismic response analysis is carried out.1. " transverse direction+vertical seismic action adds for input Speed time-histories ", calculate simultaneously optimal damping device transverse direction Equivalent damping coefficient CtWith Rate Index α；2. input " longitudinal direction+vertical seismic action Acceleration time course ", using the α of lateral calculations, calculate simultaneously optimal damping device longitudinal direction Equivalent damping coefficient Cl；3. pass through below equation Calculate damper β angles, C values.
The single damper is F, damped coefficient C, speed v, Rate Index α, constitutive relation F in damping force =Cvα, under the conditions of being β with girder longitudinal axis angle, horizontal, longitudinal equivalent damping Rate Index is still α.
Damper direction across bridge equivalent damping power Ft, Equivalent damping coefficient CtFor：
Ft=Fsin β=C (sin β)1+α·vt α=Ct·vt α (1)
Ct=C (sin β)1+α (2)
Damper indulges bridge to equivalent damping power Fl, Equivalent damping coefficient ClFor：
Fl=Fcos β=C (cos β)1+α·vl α=Cl·vl α (3)
Cl=C (cos β)1+α (4)
Horizontal stroke, bridge is indulged to Equivalent damping coefficient Ct、ClThe parameters relationship of following fixation be present：
In formula, vt、vlFor tower (pier), Liang Heng, bridge is indulged to relative velocity.
The inclined type bridge earthquake resistance damper has specific setting pattern.One group of multiple damper oblique angle by it is horizontal, Vertical bridge is laid to symmetrical, can reduce single damper Equivalent damping coefficient Ct、ClChange with angle beta, operating characteristic bar is unstable Phenomenon, there is provided stably horizontal, indulge bridge to combination equivalent damping power.
One group of multiple damper direction across bridge combination equivalent damping power ∑ Ft, combination Equivalent damping coefficient ∑ CtFor：
∑Ft=∑ Ct·vt a (6)
ΣCt=Kt·C (7)
One group of multiple damper indulges bridge to combination equivalent damping power ∑ Fl, combination Equivalent damping coefficient ∑ ClFor：
∑Fl=∑ Cl·vl α (8)
∑Cl=Kl·C (9)
In formula, Kt、KlFor basicly stable constant.
Result of calculation is shown in Table 1：
The inclined type bridge earthquake resistance damperparameters table of table 1
Referring to Fig. 3, Fig. 4, the single damper of inclined type bridge earthquake resistance damper 4 is horizontal positioned, and one end is more by beam-ends Girder 3 is connected to displacement hinge 5, the other end is connected to bridge tower sill 7 by tower end multi-directional deflection hinge 6, and end uses Beam-ends multi-directional deflection hinge 5 and tower end multi-directional deflection hinge 6.Beam-ends multi-directional deflection hinge 5 is ball pivot, if horizontal support otic placode. Tower end multi-directional deflection hinge 6 cuts with scissors for axle, if horizontal vertical twin shaft.
Referring to Fig. 5, Fig. 6, the single damper axis of inclined type bridge earthquake resistance damper 4 is with horizontal, vertical bridge in the presence of one Tilting drift angle 9, the vertical, horizontal motion to structure can produce axial movement reaction, and then carry out damping energy dissipation.Single damper It can reach while control horizontal, vertical effect of the bridge to geological process.
Referring to Fig. 7, inclined type bridge earthquake resistance damper 4 uses one group of 4 damper on every bridge tower 2, with horizontal plane Bridge tower center 8 on the basis of, the tilting drift angle 9 of each damper, which calculates, to be designed as 30 ° of Work-corners 10 and is designed as 20 °~40 °, Horizontal, vertical bridge is laid to symmetrical.Calculating shows：Specifically setting pattern to reduce, single damper operating characteristic is unstable to be showed As.In 20 °~40 ° Work-corners, one group of 4 damper conversion coefficient K of single damper conversion coefficient K and linkage is calculated It the results are shown in Table 2：
The inclined type bridge earthquake resistance damper conversion coefficient K contrast tables of table 2
In table, T is one group of 4 damper direction across bridge or vertical bridge to combination equivalent damping power；S is tower (pier), beam direction across bridge Or vertical bridge is to relative velocity；C is single damper damped coefficient；K is the tilting rear damped coefficient direction across bridge or vertical of single damper Bridge postpones damped coefficient direction across bridge or vertical bridge to conversion coefficient to conversion coefficient, or for one group of 4 damper symmetrical inclined；Maximum becomes Rate is on the basis of 30 ° calculate K values.
Referring to Fig. 1, large span floating system cable stayed bridge 1 using inclined type bridge earthquake resistance damper 4, arrangement works state and Stress improves, and material usage reduces.Reinforcing bar about 6100t mono- is only saved, that is, reduces about 31,000,000 yuan of cost.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using invention. Person skilled in the art obviously can easily make various modifications to these embodiments, and described herein general Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability Field technique personnel do not depart from improvement that scope made and modification all should be the present invention's according to the announcement of the present invention Within protection domain.

Claims (7)

1. a kind of large span floating system cable stayed bridge provided with inclined type bridge earthquake resistance damper, large span floating system cable stayed bridge (1) girder (3) and bridge tower (2) are included, it is characterised in that 4 inclined type bridge earthquake resistance dampings are provided with every bridge tower (2) Device (4), on the basis of the bridge tower center (8) on horizontal plane, each inclined type bridge earthquake resistance damper (4) is in horizontal, vertical bridge to symmetrical Lay, single damper axis and the girder longitudinal axis of each inclined type bridge earthquake resistance damper (4) have a tilting drift angle (9), to suppress dynamic response of the girder (3) under geological process.
2. a kind of large span floating system cable stayed bridge provided with inclined type bridge earthquake resistance damper according to claim 1, Characterized in that, the Work-corner (10) of each inclined type bridge earthquake resistance damper (4) is 20 °~40 °.
3. a kind of large span floating system cable stayed bridge provided with inclined type bridge earthquake resistance damper according to claim 1, Characterized in that, the single damper of inclined type bridge earthquake resistance damper (4) is horizontal positioned, one end is cut with scissors by beam-ends multi-directional deflection Chain (5) is connected to girder (3), and the other end is connected to bridge tower sill (7) by tower end multi-directional deflection hinge (6).
4. a kind of large span floating system cable stayed bridge provided with inclined type bridge earthquake resistance damper according to claim 3, Characterized in that, the beam-ends multi-directional deflection hinge (5) is ball pivot, if horizontal support otic placode.
5. a kind of large span floating system cable stayed bridge provided with inclined type bridge earthquake resistance damper according to claim 3, Characterized in that, the tower end multi-directional deflection hinge (6) is cut with scissors for axle, if horizontal vertical twin shaft.
6. a kind of large span floating system cable stayed bridge provided with inclined type bridge earthquake resistance damper according to claim 1, Characterized in that, the tilting drift angle (9) is 30 °.
7. a kind of large span floating system cable stayed bridge provided with inclined type bridge earthquake resistance damper according to claim 1, Characterized in that, exist between the damping force F of inclined type bridge earthquake resistance damper (4), damped coefficient C, speed v, Rate Index α Constitutive relation F=Cvα, inclined type bridge earthquake resistance damper (4) axis and under the conditions of girder longitudinal axis angle is β, it is horizontal, vertical Still it is d to equivalent damping Rate Index,
Damper direction across bridge equivalent damping power Ft, Equivalent damping coefficient CtFor：
Ft=Fsin β=C (sin β)1+α·vt α=Ct·vt α (1)
Ct=C (sin β)1+α (2)
Damper indulges bridge to equivalent damping power Fl, Equivalent damping coefficient ClFor：
Fl=Fcos β=C (cos β)1+α·vl α=Cl·vl α (3)
Cl=C (cos β)1+a (4)
Horizontal stroke, bridge is indulged to Equivalent damping coefficient Ct、ClThe parameters relationship of following fixation be present：
<mrow> <mfrac> <msub> <mi>C</mi> <mi>t</mi> </msub> <msub> <mi>C</mi> <mi>l</mi> </msub> </mfrac> <mo>=</mo> <msup> <mrow> <mo>(</mo> <mrow> <mi>tan</mi> <mi>&amp;beta;</mi> </mrow> <mo>)</mo> </mrow> <mrow> <mn>1</mn> <mo>+</mo> <mi>&amp;alpha;</mi> </mrow> </msup> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>5</mn> <mo>)</mo> </mrow> </mrow>
In formula, vt、vlFor direction across bridge, bridge is indulged to relative velocity.
CN201711115782.3A 2017-11-13 2017-11-13 Large span floating system cable stayed bridge provided with inclined type bridge earthquake resistance damper Pending CN107893368A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109190188A (en) * 2018-08-10 2019-01-11 安徽省交通规划设计研究总院股份有限公司 A kind of the damping parameter optimization method and damper restriction device of steel plate combination beam bridge
CN110055876A (en) * 2019-01-21 2019-07-26 苏交科集团股份有限公司 Single pylon cable stayed bridge three-dimensional subtracts vibration-isolating system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000240008A (en) * 1999-02-23 2000-09-05 Kobe Steel Ltd Bridge provided with dynamic vibration absorber
FR2862073A1 (en) * 2003-11-12 2005-05-13 Freyssinet Int Stup Strut layer vibration absorbing device for construction work e.g. guyed bridge, has vibration absorber with piston skirt and piston that are provided with respective joints articulated on respective struts
CN103422428A (en) * 2013-08-28 2013-12-04 东南大学 Horizontal wind vibration reaction control system of cable-stayed bridge with rigid hinges arranged in girder
CN104120650A (en) * 2014-08-01 2014-10-29 株洲时代新材料科技股份有限公司 Steel damping composite sliding plate rubber support and damping method thereof
CN105178185A (en) * 2015-09-10 2015-12-23 安徽省交通规划设计研究总院股份有限公司 Oblique-damping restraint system for main girders of cable-stayed bridge
CN105468827A (en) * 2015-11-18 2016-04-06 中铁大桥科学研究院有限公司 Oblique type bridge anti-seismic damper and parameter optimization method thereof
CN205501798U (en) * 2016-03-17 2016-08-24 中铁第一勘察设计院集团有限公司 Use bridge damping structure of viscid attenuator of liquid
CN207597232U (en) * 2017-11-13 2018-07-10 安徽省交通控股集团有限公司 Large span floating system cable stayed bridge equipped with inclined type bridge earthquake resistance damper

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000240008A (en) * 1999-02-23 2000-09-05 Kobe Steel Ltd Bridge provided with dynamic vibration absorber
FR2862073A1 (en) * 2003-11-12 2005-05-13 Freyssinet Int Stup Strut layer vibration absorbing device for construction work e.g. guyed bridge, has vibration absorber with piston skirt and piston that are provided with respective joints articulated on respective struts
CN103422428A (en) * 2013-08-28 2013-12-04 东南大学 Horizontal wind vibration reaction control system of cable-stayed bridge with rigid hinges arranged in girder
CN104120650A (en) * 2014-08-01 2014-10-29 株洲时代新材料科技股份有限公司 Steel damping composite sliding plate rubber support and damping method thereof
CN105178185A (en) * 2015-09-10 2015-12-23 安徽省交通规划设计研究总院股份有限公司 Oblique-damping restraint system for main girders of cable-stayed bridge
CN105468827A (en) * 2015-11-18 2016-04-06 中铁大桥科学研究院有限公司 Oblique type bridge anti-seismic damper and parameter optimization method thereof
CN205501798U (en) * 2016-03-17 2016-08-24 中铁第一勘察设计院集团有限公司 Use bridge damping structure of viscid attenuator of liquid
CN207597232U (en) * 2017-11-13 2018-07-10 安徽省交通控股集团有限公司 Large span floating system cable stayed bridge equipped with inclined type bridge earthquake resistance damper

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109190188A (en) * 2018-08-10 2019-01-11 安徽省交通规划设计研究总院股份有限公司 A kind of the damping parameter optimization method and damper restriction device of steel plate combination beam bridge
CN109190188B (en) * 2018-08-10 2022-11-25 安徽省交通规划设计研究总院股份有限公司 Damping parameter optimization method and damping constraint device for steel plate combined beam bridge
CN110055876A (en) * 2019-01-21 2019-07-26 苏交科集团股份有限公司 Single pylon cable stayed bridge three-dimensional subtracts vibration-isolating system
CN110055876B (en) * 2019-01-21 2024-06-11 苏交科集团股份有限公司 Three-way shock-absorbing and isolating system of single-tower cable-stayed bridge

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