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Global sensitivity analysis of certain and uncertain factors for a circular tunnel under seismic action

Nazim Abdul NARIMAN, Raja Rizwan HUSSAIN, Ilham Ibrahim MOHAMMAD, Peyman KARAMPOUR

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1289-1300 doi: 10.1007/s11709-019-0548-0

Abstract: There are many certain and uncertain design factors which have unrevealed rational effects on the generation of tensile damage and the stability of the circular tunnels during seismic actions. In this research paper, we have dedicated three certain and four uncertain design factors to quantify their rational effects using numerical simulations and the Sobol’s sensitivity indices. Main effects and interaction effects between the design factors have been determined supporting on variance-based global sensitivity analysis. The results detected that the concrete modulus of elasticity for the tunnel lining has the greatest effect on the tensile damage generation in the tunnel lining during the seismic action. In the other direction, the interactions between the concrete density and both of concrete modulus of elasticity and tunnel diameter have appreciable effects on the tensile damage. Furthermore, the tunnel diameter has the deciding effect on the stability of the tunnel structure. While the interaction between the tunnel diameter and concrete density has appreciable effect on the stability process. It is worthy to mention that Sobol’s sensitivity indices manifested strong efficiency in detecting the roles of each design factor in cooperation with the numerical simulations explaining the responses of the circular tunnel during seismic actions.

Keywords: shear waves     Sobol’s sensitivity indices     maximum principal stress     maximum overall displacement     tensile    

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    

A numerical framework for underground structures in layered ground under inclined P-SV waves using stiffness

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 10-24 doi: 10.1007/s11709-022-0904-3

Abstract: was proposed for the seismic analysis of underground structures in layered ground under inclined P-SV wavesin previous studies, the proposed framework exhibits the advantage of incorporating oblique incident wavesNumerical results show that SV-waves are more destructive to underground structures than P-waves, and

Keywords: underground structures     seismic response     stiffness matrix method     domain reduction method     P-SV waves    

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    

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) shearextensive research since the 1980s, there are no well-established design guidelines available on the 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.

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

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    

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    

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    

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    

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    

Ribbon bridge in waves based on hydroelasticity theory

Cong WANG, Shixiao FU, Weicheng CUI

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 57-62 doi: 10.1007/s11709-009-0005-6

Abstract: For the design and operation of a floating bridge, the understanding of its hydroelastic behavior in wavesmethod is applicable and adaptable for predicting the hydroelastic response of the floating bridge in waves

Keywords: hydroelasticity     ribbon bridge     wave     finite element method (FEM)    

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    

Analyses of Evolutionary Process of One Dimensional Stress-waves in Heterogeneous Rock Medium

Zhong Guangfu,Wang Zhiliang,Li Yongchi

Strategic Study of CAE 2006, Volume 8, Issue 5,   Pages 58-62

Abstract:

Violent earthquake waves will be produced when an underground spherically packed explosive is blastedThe emphasis is put on the waves propagated from hard rocks into soft rocks, or from soft rocks intoAt the same time, the influences of weak intercalated bed between rock masses on 1 D stress-waves are

Keywords: rock medium     1 D stress-waves     cap model     propagation and evolution    

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    

Soil seismic analysis for 2D oblique incident waves using exact free-field responses by frequency-based

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 12,   Pages 1530-1551 doi: 10.1007/s11709-022-0900-7

Abstract: The seismic analysis of a viscoelastic half-space under two-dimensional (2D) oblique incident waves isdisplacements and stresses of the free field are derived in general form for arbitrary incident P and SV wavesWith the present formulation, no distinction needs to be made for SV waves with over-critical incidentangles that make the reflected P waves disappear, while no critical angle exists for P waves.indicated that distinct phase difference exists between the horizontal and vertical responses for SV waves

Keywords: oblique incident waves     critical angle     half-space     finite/infinite element approach     seismic response    

Title Author Date Type Operation

Global sensitivity analysis of certain and uncertain factors for a circular tunnel under seismic action

Nazim Abdul NARIMAN, Raja Rizwan HUSSAIN, Ilham Ibrahim MOHAMMAD, Peyman KARAMPOUR

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

A numerical framework for underground structures in layered ground under inclined P-SV waves using stiffness

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

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

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

Journal Article

Ribbon bridge in waves based on hydroelasticity theory

Cong WANG, Shixiao FU, Weicheng CUI

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

Analyses of Evolutionary Process of One Dimensional Stress-waves in Heterogeneous Rock Medium

Zhong Guangfu,Wang Zhiliang,Li Yongchi

Journal Article

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

Journal Article

Soil seismic analysis for 2D oblique incident waves using exact free-field responses by frequency-based

Journal Article