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Aerodynamic interference effects and mitigation measures on vortex-induced vibrations of two adjacent cable-stayed bridges

Xiaoliang MENG, Ledong ZHU, Zhenshan GUO

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 4,   Pages 510-517 doi: 10.1007/s11709-011-0129-3

Abstract: By examining the two neighboring Haihe Bridges with semi- and full-closed bridge decks, the aerodynamiceffective combined measure of adding wind barriers and sharpening the wind fairing noses of the two box

Keywords： parallel decks     vortex-induced vibration     aerodynamic interference     aerodynamic mitigation measure     semi-closedbox deck     full-closed box deck    

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Stress analysis of deck pavement of continuous steel box girder

Li Guofen,Cao Mu, Wang Hongchang,Zhu Huaping

Strategic Study of CAE 2013, Volume 15, Issue 8,   Pages 79-83

Abstract:

The geometric structure of steel deck plates is complex.So it is difficult to get precise results in the mechanics calculation of deck pavement with traditionalelement method for the mechanics analysis of the composite guss asphalt surfacing layer of curved steel boxBy taking the orthotropic steel deck and the pavement as a whole, a reasonable finite element model whichAccording to the common diseases in steel deck pavements and the effect of the overload and the horizontal

Keywords： bridge deck pavement     curved continuous steel box girder     surfacing cracking     bond slip     stress and the    

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A method for examining the seismic performance of steel arch deck bridges

Cheng-Yu LIANG, Airong CHEN,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3,   Pages 311-320 doi: 10.1007/s11709-010-0080-8

Abstract: A steel fixed-end deck arch bridge with a span length of 200 m was used as an example in this study

Keywords： seismic performance     earthquake damage     steel deck arch bridge    

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Parametric equations for notch stress concentration factors of rib–deck welds under bending loading

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 595-608 doi: 10.1007/s11709-021-0720-1

Abstract: The effective notch stress approach for evaluating the fatigue strength of rib–deck welds requires notchthe notch stress concentration factors for three typical fatigue-cracking modes (i.e., root–toe, root–deck, and toe–deck cracking modes) were thoroughly investigated in this study.First, we developed a model for investigating the effective notch stress in rib–deck welds.performed a parametric analysis to investigate the effects of multiple geometric parameters of a rib–deck

Keywords： notch stress concentration factor     rib–deck weld     parametric analysis     regression analysis     parametric    

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Mechanical study of steel bridge deck pavement with composite guss asphalt materials

Zhu Huaping,Li Guofen,Cao Mu,Wang Hongchang

Strategic Study of CAE 2013, Volume 15, Issue 8,   Pages 60-62

Abstract:

At present, the diseases of steel bridge deck pavement in long-span bridgeare still very common, and steel bridge deck pavement has become a difficult problem of long-span bridgeTaking the orthotropic steel deck and the pavement as a whole, a finite element model was established

Keywords： highway engineering     steel box girder     finite element model     stress and strain property     dynamic response    

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Performance of steel bridge deck pavement structure with ultra high performance concrete based on resin

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 895-904 doi: 10.1007/s11709-021-0759-z

Abstract: This research investigated a pavement system on steel bridge decks that use epoxy resin (EP) bonded ultra-high performance concrete (UHPC). Through FEM analysis and static and dynamic bending fatigue tests of the composite structure, the influences of the interface of the pavement layer, reinforcement, and different paving materials on the structural performance were compared and analyzed. The results show that the resin bonded UHPC pavement structure can reduce the weld strain in the steel plate by about 32% and the relative deflection between ribs by about 52% under standard axial load conditions compared to traditional pavements. The EP bonding layer can nearly double the drawing strength of the pavement interface from 1.3 MPa, and improve the bending resistance of the UHPC structure on steel bridge decks by about 50%; the bending resistance of reinforced UHPC structures is twice that of unreinforced UHPC structure, and the dynamic deflection of the UHPC pavement structure increases exponentially with increasing fatigue load. The fatigue life is about 1.2 × 107 cycles under a fixed force of 9 kN and a dynamic deflection of 0.35 mm, which meets the requirements for fatigue performance of pavements on steel bridge decks under traffic conditions of large flow and heavy load.

Keywords： steel bridge deck pavement     ultra-high-performance concrete     epoxy resin     composite structure     bending    

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Feasibility of crack free reinforced concrete bridge deck from materials composition perspective: a state

Mahdi AREZOUMANDI

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 1,   Pages 91-103 doi: 10.1007/s11709-015-0274-1

Abstract: Early age cracking on bridge deck has been the subject of many studies for years.To design an appropriate mixture for crack free bridge deck, it is important to study previous researchesof different materials compositions as well as methods have been used to reduce and control bridge deck

Keywords： bridge deck     crack     fiber     shrinkage     shrinkage reducing admixture    

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Micromixing performance of the teethed high shear mixer under semi-batch operation

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 4,   Pages 546-559 doi: 10.1007/s11705-021-2069-3

Abstract: Semi-batch operated reaction processes are necessary for some competitive reaction systems to achieveparameters of the teethed high shear mixers were adjusted to study the micromixing performance in the semi-batchcarried out to disclose the evolution of the flow pattern and turbulent energy dissipation rate of the semi-batchparameters studied in this work, which can provide valuable guidance on the design and optimization of the semi-batch

Keywords： high shear mixer     semi-batch operation     micromixing performance     Villermaux/Dushman system     segregation    

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Fatigue evaluation of steel-concrete composite deck in steel truss bridge——A case study

Huating CHEN; Xianwei ZHAN; Xiufu ZHU; Wenxue ZHANG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 10,   Pages 1336-1350 doi: 10.1007/s11709-022-0852-y

Abstract: An innovative composite deck system has recently been proposed for improved structural performance.To study the fatigue behavior of a steel-concrete composite bridge deck, we took a newly-constructedThe results indicate that flexural failure of the bridge deck in the transverse negative bending momentHowever, while the top surface of the bridge deck concrete near the truss cracks after just six years, the bridge deck performs with fatigue cracks during most of its design service life.

Keywords： Fatigue assessment     composite bridge deck     rail-cum-road bridge     fatigue stress analysis     Model Code    

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Experimental investigations on operating characteristics of a closed loop pulsating heat pipe

Yu WANG

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 134-141 doi: 10.1007/s11708-015-0354-x

Abstract: A series of experiments were conducted on a closed loop PHP with 5 turns made of copper capillary tube

Keywords： closed loop pulsating heat pipe     thermal performance     operation limit     thermography    

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Bending performance of composite bridge deck with T-shaped ribs

Qingtian SU, Changyuan DAI, Xu JIANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 990-997 doi: 10.1007/s11709-019-0532-8

Abstract: This paper proposes a new type of steel-concrete composite deck, which is composed of orthotropic steeldeck (OSD) with T-shaped ribs, concrete plate and studs connecting OSD and concrete plate.Compared with conventional OSD system, this new type of composite bridge deck can also improve fatigueConsidering that this type of composite deck is not yet applied in practical engineering and its mechanicalThe test results showed that the plastic performance of this kind of composite bridge deck was satisfying

Keywords： bending performance     composite bridge deck     T-shaped steel ribs    

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Improvement of the cascading closed loop cycle system

ZHANG Guoqiang, CAI Ruixian

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 341-346 doi: 10.1007/s11708-007-0051-5

Abstract: Aspen Plus was used to simulate and get more information about the cascading closed loop cycle (CCLC)
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Bending and rotational behaviour of semi-continuous composite beams

WANG Jingfeng, LI Guoqiang

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 2,   Pages 116-122 doi: 10.1007/s11709-008-0015-9

Abstract: Stresses and deflections were measured in various semi-continuous composite beams.composite connections were measured in terms of beam curvatures and deflections by using two full-scale semi-rigidThe effect of semi-rigid connections on the performance of composite beams with various loadings wasThe tests show that the semi-continuous composite beams are more economic and effective than the simpleThe semi-rigid connections affect the bending capacities and beam deflections, so the connection behavior

Keywords： rotational     effective     deflection calculation     semi-continuous composite     full-scale semi-rigid    

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Dynamic simulation of a space gas-cooled reactor power system with a closed Brayton cycle

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 916-929 doi: 10.1007/s11708-021-0757-9

Abstract: Space nuclear reactor power (SNRP) using a gas-cooled reactor (GCR) and a closed Brayton cycle (CBC)

Keywords： gas-cooled space nuclear reactor power     closed Brayton cycle     system startup and shutdown     positive reactivity    

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A Simplified Nonlinear Model of Vertical Vortex-Induced Force on Box Decks for Predicting Stable Amplitudes

Le-Dong Zhu, Xiao-Liang Meng, Lin-Qing Du, Ming-Chang Ding

Engineering 2017, Volume 3, Issue 6,   Pages 854-862 doi: 10.1016/j.eng.2017.06.001

Abstract: out to investigate the nonlinear behaviors of vertical vortex-induced forces (VIFs) on three typical boxdecks (i.e., fully closed box, centrally slotted box, and semi-closed box).The results show that the nonlinear components of the vertical VIF often differ from deck to deck; theOn these bases, a universal simplified nonlinear mathematical model of the vertical VIF on box decks

Keywords： Box deck of bridge     Vertical vortex-induced vibration     Vertical vortex-induced force     Simplified nonlinear    

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Title Author Date Type Operation

Aerodynamic interference effects and mitigation measures on vortex-induced vibrations of two adjacent cable-stayed bridges

Xiaoliang MENG, Ledong ZHU, Zhenshan GUO

Journal Article

Stress analysis of deck pavement of continuous steel box girder

Li Guofen,Cao Mu, Wang Hongchang,Zhu Huaping

Journal Article

A method for examining the seismic performance of steel arch deck bridges

Cheng-Yu LIANG, Airong CHEN,

Journal Article

Parametric equations for notch stress concentration factors of rib–deck welds under bending loading

Journal Article

Mechanical study of steel bridge deck pavement with composite guss asphalt materials

Zhu Huaping,Li Guofen,Cao Mu,Wang Hongchang

Journal Article

Performance of steel bridge deck pavement structure with ultra high performance concrete based on resin

Journal Article

Feasibility of crack free reinforced concrete bridge deck from materials composition perspective: a state

Mahdi AREZOUMANDI

Journal Article

Micromixing performance of the teethed high shear mixer under semi-batch operation

Journal Article

Fatigue evaluation of steel-concrete composite deck in steel truss bridge——A case study

Huating CHEN; Xianwei ZHAN; Xiufu ZHU; Wenxue ZHANG

Journal Article

Experimental investigations on operating characteristics of a closed loop pulsating heat pipe

Yu WANG

Journal Article

Bending performance of composite bridge deck with T-shaped ribs

Qingtian SU, Changyuan DAI, Xu JIANG

Journal Article

Improvement of the cascading closed loop cycle system

ZHANG Guoqiang, CAI Ruixian

Journal Article

Bending and rotational behaviour of semi-continuous composite beams

WANG Jingfeng, LI Guoqiang

Journal Article

Dynamic simulation of a space gas-cooled reactor power system with a closed Brayton cycle

Journal Article

A Simplified Nonlinear Model of Vertical Vortex-Induced Force on Box Decks for Predicting Stable Amplitudes

Le-Dong Zhu, Xiao-Liang Meng, Lin-Qing Du, Ming-Chang Ding

Journal Article