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Effects of shear force on formation and properties of anoxic granular sludge in SBR

Xinyan ZHANG, Binbin WANG, Qingqing HAN, Hongmei ZHAO, Dangcong PENG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 6,   Pages 896-905 doi: 10.1007/s11783-013-0539-7

Abstract: This paper reports the effects of shear force on anoxic granular sludge in sequencing batch reactorsThe important findings of this research highlight the dual effects of shear force on anoxic granules.For high shear force, this research demonstrated that: 1) granules with smaller diameters, high densityFor low shear force, such as was applied in SBR1, this research demonstrated that: 1) the activity ofanoxic granular sludge in low shear force was higher than that in high shear force, 2) higher amount

Keywords： denitrification     anoxic granular sludge     sequencing batch reactors (SBR)     shear force    

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Research on the dynamic mechanical characteristics and turning tool life under the conditions of excessively heavy-duty turning

Genghuang HE, Xianli LIU, Fugang YAN

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 329-334 doi: 10.1007/s11465-012-0303-x

Abstract: on the tools’ failure in limited heavy-duty cutting processes, the model of dynamic shearing forceHowever, the experimental results showed that the dynamic shear flow stress in the cutting area greatly

Keywords： extreme loading cutting     shear flow stress     dynamic cutting force     fatigue fracture    

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Dynamic analyses of steel-reinforced super high-strength concrete columns

JIA Jinqing, JIANG Rui, XU Shilang, HOU Tong

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2,   Pages 240-246 doi: 10.1007/s11709-007-0030-2

Abstract: Thirteen specimens, with concrete strengths ranging from 94.9 to 105.4 MPa and shear-span ratios of 2.75The columns under low cyclic lateral loading mainly failed in the flexural-shear mode.Shear force-displacement hysteretic curves and skeleton curves were drawn.

Keywords： amendment     flexural-shear     force-displacement hysteretic     definite ductility     skeleton    

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Modeling of shear walls using finite shear connector elements based on continuum plasticity

Ulf Arne GIRHAMMAR, Per Johan GUSTAFSSON, Bo KÄLLSNER

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 2,   Pages 143-157 doi: 10.1007/s11709-016-0377-3

Abstract: behavior of the sheathing-to-framing joints has a significant impact on the structural performance of shearThis paper is focused on the finite element modeling of shear walls.The purpose is to present a new shear connector element based on the theory of continuum plasticity.Load-displacement curves for shear walls are calculated using the shear connector model and they are

Keywords： shear walls     wall diaphragms     finite element modelling     plastic shear connector     analytical modelling     experimental    

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Nonlinear numerical simulation of punching shear behavior of reinforced concrete flat slabs with shear-heads

Dan V. BOMPA, Ahmed Y. ELGHAZOULI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 331-356 doi: 10.1007/s11709-019-0596-5

Abstract: paper examines the structural response of reinforced concrete flat slabs, provided with fully-embedded shear-headsassessments enable the identification of three modes of failure as a function of the interaction between the shear-headPractical recommendations are also provided for the design of shear-heads in RC slabs, including theshown to offer a more reliable design approach in comparison with existing methods for all types of shear-heads

Keywords： non-linear numerical modelling     concrete damage plasticity     RC flat slabs     shear-heads     punching shear    

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Behaviour of self-centring shear walls——A state of the art review

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 53-77 doi: 10.1007/s11709-022-0850-0

Abstract: post-tensioning (PT) in structural walls has led to the development of advanced self-centring (rocking) shearsliding, confinement, seismic performance factors, PT loss, PT force range and residual drifts of shearThe established database was then used to review shear walls’ configurations, material, and componentsThe behaviour of concrete, masonry and timber shear walls were compared and critically analysed.The general behaviour, force-displacement performance of the walls, ductility, and seismic response factors

Keywords： self-centring shear walls     rocking walls     energy dissipation     seismic performance factors     PT loss     residual    

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Modeling limit force capacities of high force to volume lead extrusion dampers

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 609-622 doi: 10.1007/s11709-021-0724-x

Abstract: Small volumetric sizes and high force capacities define high-force-to-volume (HF2V) devices, which canHowever, the design of such devices for specific force capacities has proven difficult based on the complexitiesThis study developed upper- and lower-bound force capacity estimates from analytical mechanics basedThe proposed models were validated by comparing the predicted bounds to experimental force capacity data/sub>) pair has a mean lower-bound gap of 36%, meaning the lower bound was 74% of the actual device force

Keywords： extrusion     lead dampers     upper and lower bound     analytical modelling     limit force    

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Prediction of the shear wave velocity

Amoroso SARA

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1,   Pages 83-92 doi: 10.1007/s11709-013-0234-6

Abstract: The paper examines the correlations to obtain rough estimates of the shear wave velocity from non-seismic

Keywords： horizontal stress index     shear wave velocity     flat dilatometer test     cone penetration test    

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On braced trapezoidal corrugated steel shear panels: An experimental and numerical study

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 396-410 doi: 10.1007/s11709-023-0934-5

Abstract: system consisting of a combination of braces and steel infill panels called the braced corrugated steel shearSubsequently, a relationship was established to estimate the buckling shear strength of the system withoutThe results obtained from the parametric study indicate that the corrugated steel shear panel (CSSP)

Keywords： trapezoidal corrugated plate     steel shear panel     braced steel shear panel     experimental study     buckling    

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Experimental study on shear behavior of reinforced concrete beams with web horizontal reinforcement

Dong XU,Yu ZHAO,Chao LIU

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 325-336 doi: 10.1007/s11709-014-0080-1

Abstract: In determining the shear capacity of reinforced concrete beams, current codes do not provide any calculationThe primary design variables are the shear-span-depth ratio, different reinforcement ratio of stirrupsIt was found that web horizontal reinforcement can increase the shear capacity of the beams and restrainTest results are very valuable, as very few references of shear tests can be found focusing on the effectof web horizontal reinforcement on the shear capacity of the beams.

Keywords： reinforced concrete beam     shear strength     web horizontal reinforcement     experiments    

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Effect of loading rate on shear strength parameters of mechanically and biologically treated waste

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1595-7

Abstract:

● Mechanical behavior of MBT waste affected by loading rate was investigated.

Keywords： Mechanically and biologically treated waste     Landfill     Triaxial test     Loading rate     Axial strain     Shear    

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Cultivation of aerobic granular sludge in a conventional, continuous flow, completely mixed activated sludge system

Xi CHEN,Linjiang YUAN,Wenjuan LU,Yuyou LI,Pei LIU,Kun NIE

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 324-333 doi: 10.1007/s11783-014-0627-3

Abstract: suggested that aerobic granules could form, if provided with sufficient number of filaments and high shearforce.

Keywords： aerobic granular sludge     completely mixed activated sludge system (CMAS)     continuous flow     shear force     filamentous    

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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: Herein the structural and operating parameters of the teethed high shear mixers were adjusted to studythat the rising of the rotor speed and the number of rotor teeth, the decrease of the width of the shearevolution of the flow pattern and turbulent energy dissipation rate of the semi-batch operated high shearwhich can provide valuable guidance on the design and optimization of the semi-batch operated high shear

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

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Predicting the capacity of perfobond rib shear connector using an ANN model and GSA method

Guorui SUN; Jun SHI; Yuang DENG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 10,   Pages 1233-1248 doi: 10.1007/s11709-022-0878-1

Abstract: A connector is an important part of a composite beam, and its shear strength can have a significant impactIn this paper, the shear performance of perfobond rib shear connectors (PRSCs) is predicted based onvariables were based on different empirical formulas and the output variables were the corresponding shearresults predicted by the ANN models and empirical equations were compared, and the factors affecting shearforce between steel plate and concrete has the least sensitivity to shear strength.

Keywords： perfobond rib shear connector     shear strength     ANN model     global sensitivity analysis    

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Uncertainty of concrete strength in shear and flexural behavior of beams using lattice modeling

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 306-325 doi: 10.1007/s11709-022-0890-5

Abstract: studied the effect of uncertainty and random distribution of concrete strength in beams failing in shearComparative studies were conducted for both shear- and flexure-deficit beams under four-point loadingThe scatter of random load-capacities was higher in flexure (range: 0.680–0.990) than that of shear (

Keywords： lattice modeling     shear failure     flexural failure     uncertainty     deficiency     numerical simulation    

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Title Author Date Type Operation

Effects of shear force on formation and properties of anoxic granular sludge in SBR

Xinyan ZHANG, Binbin WANG, Qingqing HAN, Hongmei ZHAO, Dangcong PENG

Journal Article

Research on the dynamic mechanical characteristics and turning tool life under the conditions of excessively heavy-duty turning

Genghuang HE, Xianli LIU, Fugang YAN

Journal Article

Dynamic analyses of steel-reinforced super high-strength concrete columns

JIA Jinqing, JIANG Rui, XU Shilang, HOU Tong

Journal Article

Modeling of shear walls using finite shear connector elements based on continuum plasticity

Ulf Arne GIRHAMMAR, Per Johan GUSTAFSSON, Bo KÄLLSNER

Journal Article

Nonlinear numerical simulation of punching shear behavior of reinforced concrete flat slabs with shear-heads

Dan V. BOMPA, Ahmed Y. ELGHAZOULI

Journal Article

Behaviour of self-centring shear walls——A state of the art review

Journal Article

Modeling limit force capacities of high force to volume lead extrusion dampers

Journal Article

Prediction of the shear wave velocity

Amoroso SARA

Journal Article

On braced trapezoidal corrugated steel shear panels: An experimental and numerical study

Journal Article

Experimental study on shear behavior of reinforced concrete beams with web horizontal reinforcement

Dong XU,Yu ZHAO,Chao LIU

Journal Article

Effect of loading rate on shear strength parameters of mechanically and biologically treated waste

Journal Article

Cultivation of aerobic granular sludge in a conventional, continuous flow, completely mixed activated sludge system

Xi CHEN,Linjiang YUAN,Wenjuan LU,Yuyou LI,Pei LIU,Kun NIE

Journal Article

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

Journal Article

Predicting the capacity of perfobond rib shear connector using an ANN model and GSA method

Guorui SUN; Jun SHI; Yuang DENG

Journal Article

Uncertainty of concrete strength in shear and flexural behavior of beams using lattice modeling

Journal Article