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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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Experimental study on concrete box culverts in trenches

Baoguo CHEN, Junjie ZHENG, Jie HAN

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 73-80 doi: 10.1007/s11709-009-0008-3

Abstract: Concrete box culverts are widely used in expressways in mountain areas.In this paper, a full-scale experiment and numerical simulation were conducted to evaluate the variation

Keywords： culvert     vertical earth pressure     soil arch     full-scale experiment     numerical simulation    

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Simulation of long-term nutrient removal in a full-scale closed-loop bioreactor for sewage treatment:

Zheng LI,Rong QI,Wei AN,Takashi MINO,Tadashi SHOJI,Willy VERSTRAETE,Jian GU,Shengtao LI,Shiwei XU,Min YANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 534-544 doi: 10.1007/s11783-014-0660-2

Abstract: In this study, the performance of nitrogen and phosphorus removal in a full-scale closed-loop bioreactor

Keywords： activated sludge model     Bayesian inference     biological nutrient removal     closed-loop bioreactor     oxidation    

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Full scale model tests and nonlinear analysis of prestressed concretesimply supported box girders

Fang Zhi,Tang Shenghua,He Xin

Strategic Study of CAE 2012, Volume 14, Issue 10,   Pages 73-81

Abstract:

Full scale model tests were carried out on a 30 m span prestressed concretebox girder and a 20 m span prestressed concrete hollow slab.The ductility indexes of the box girder and hollow slab were 1.99, 1.23, respectively according to the

Keywords： prestressed concrete     box girder     full scale model test     nonlinear analysis     bearing capacity     ductility    

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Full scale model test of segmental precast concrete box girder with external and internal tendons

Zheng Kaiqi,Bu Hongqi,Liu Zhao,Hui Zhuo,Lv Zhitao

Strategic Study of CAE 2013, Volume 15, Issue 8,   Pages 89-94

Abstract: text-align: justify;">To investigate the structural behavior of segmental precast prestressed concrete boxgirder the regular service stage and the construction state, a span of 48 m full scale box girder model

Keywords： segmental precast     model test     external prestress     full scale test    

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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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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 mechanicalperformance is not revealed in previous literatures, two full-scale specimens were designed and manufactured

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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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

Experimental study on concrete box culverts in trenches

Baoguo CHEN, Junjie ZHENG, Jie HAN

Journal Article

Simulation of long-term nutrient removal in a full-scale closed-loop bioreactor for sewage treatment:

Zheng LI,Rong QI,Wei AN,Takashi MINO,Tadashi SHOJI,Willy VERSTRAETE,Jian GU,Shengtao LI,Shiwei XU,Min YANG

Journal Article

Full scale model tests and nonlinear analysis of prestressed concretesimply supported box girders

Fang Zhi,Tang Shenghua,He Xin

Journal Article

Full scale model test of segmental precast concrete box girder with external and internal tendons

Zheng Kaiqi,Bu Hongqi,Liu Zhao,Hui Zhuo,Lv Zhitao

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

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