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Non linear modeling of three-dimensional reinforced and fiber concrete structures

Fatiha IGUETOULENE, Youcef BOUAFIA, Mohand Said KACHI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 439-453 doi: 10.1007/s11709-017-0433-7

Abstract: Under the effect of the ascending loading, the behavior of reinforced concrete structures is rather non linear. Research in industry and science aims to extend forward the use of non-linear calculation of fiber concrete for structural parts such as columns, veils and pious, as the fiber concrete is more ductile behavior then the classical concrete behavior. The formulation of the element has been established for modeling the nonlinear behavior of elastic structures in three dimensions, based on the displacement method. For the behavior of concrete and fiber concrete compressive and tensile strength (stress-strain) the uniaxial formulation is used. For steel bi-linear relationship is used. The approach is based on the discretization of the cross section trapezoidal tables. Forming the stiffness matrix of the section, the integral of the surface is calculated as the sum of the integrals on each of the cutting trapezoids. To integrate on the trapeze we have adopted the type of Simpson integration scheme.

Keywords： numerical modeling     column and beam     nonlinear analysis     fibers     pious     reinforcement     3D formulation     responseload-deflection    

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Influence of axial load on the lateral pile groups response in cohesionless and cohesive soil

Jasim M. ABBASA,Zamri CHIK,Mohd Raihan TAHA

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 176-193 doi: 10.1007/s11709-015-0289-7

Abstract: The lateral response of single and group of piles under simultaneous vertical and lateral loads has beenThe response in this assessment considered lateral pile displacement and lateral soil resistance andAs a result, modified - curves for lateral single pile response were improved with respect to the influenceof increasing axial load intensities.The effect of load combination on the lateral pile group response was performed on three pile group configurations

Keywords： piles     pile group     spacing     configuration     combined load    

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Large deflection behavior effect in reinforced concrete columns exposed to extreme dynamic loads

Masoud ABEDINI, Azrul A. MUTALIB, Chunwei ZHANG, Javad MEHRMASHHADI, Sudharshan Naidu RAMAN, Roozbeh ALIPOUR, Tohid MOMENI, Mohamed H. MUSSA

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 532-553 doi: 10.1007/s11709-020-0604-9

Abstract: carrying a high percentage of the weight is columns which were not used to design to absorb large dynamic loadThis study focuses on investigating blast load parameters to design of RC columns to withstand blastAccording to simulation results, the scaled distance has a substantial influence on the blast responseinvestigate the effects of scaled distance and charge weight on the damage degree and residual axial load

Keywords： RC column     scaled distance     blast load     LS-DYNA    

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Improved prediction of pile bending moment and deflection due to adjacent braced excavation

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0961-2

Abstract: This study develops equations to predict the existing pile bending moment and deflection produced bypractically unfeasible to obtain measurement data; hence, artificial data for the bending moment and deflectionThe estimation results of the developed equations can provide satisfactory pile bending moment and deflection

Keywords： pile responses     excavation     prediction     deflection     bending moments    

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Applications of thermostatically controlled loads for demand response with the proliferation of variable

Meng SONG, Wei SUN

Frontiers in Energy 2022, Volume 16, Issue 1,   Pages 64-73 doi: 10.1007/s11708-021-0732-5

Abstract: (TCLs) attract tremendous attentions because of their specific thermal inertia capability in demand responseSpecifically, intermediate coordinators get the access to fundamental models and response modes of TCLsprograms based on the current research have been reviewed and compared, including fundamental models, response

Keywords： thermostatically controlled load     demand response     renewable energy     power system operation    

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Load shedding scheme for an interconnected hydro-thermal hybrid system with SMES

D. TYAGI, Ashwani KUMAR, Saurabh CHANANA

Frontiers in Energy 2012, Volume 6, Issue 3,   Pages 227-236 doi: 10.1007/s11708-012-0198-6

Abstract: The frequency of the power system varies based on the load pattern of the consumers.With continuous increase in the load, the frequency of the system keeps decreasing and may reach itsFurther increase in the load will result in more frequency drop leading to the need of load shedding,load in both areas.The impact of superconducting magnetic energy storage (SMES) was obtained on load shedding scheme.

Keywords： critical load     frequency response     load shedding     multi-area system     rate of change of frequency     superconducting    

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Analysis on running safety of train on the bridge considering sudden change of wind load caused by wind

Tian ZHANG, He XIA, Weiwei GUO

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 558-567 doi: 10.1007/s11709-017-0455-1

Abstract: The calculation formulae for change of wind load acting on the car-body are derived when a train moveswind-vehicle-bridge system with wind barrier is established, and the influence of sudden change of wind loadFor a 10-span simply-supported U-shaped girder bridge with 100 m long double-side 3.5 m barrier, the responseIt is shown that the sudden change of wind load caused by wind barrier has significant influence on the

Keywords： wind barrier     sudden change of wind load     dynamic response     running safety     comfort    

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Load shedding scheme for the two-area system with linear quadratic regulator

D. TYAGI, Ashwani KUMAR, Saurabh CHANANA

Frontiers in Energy 2013, Volume 7, Issue 1,   Pages 90-102 doi: 10.1007/s11708-012-0224-8

Abstract: In order to avoid power system collapse, load shedding (LS) schemes are adopted with the optimal amountof load shed.paper proposed a methodology in a two-area thermal-thermal system for finding the required amount of loadThe LS steps have been obtained based on the rate of change of frequency with the increase in load in

Keywords： critical load     frequency response     load shedding (LS)     multi-area system     rate of change of frequency     linear    

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Modeling of large-deflection links for compliant mechanisms

Zhonglei FENG, Yueqing YU, Wenjing WANG,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 294-301 doi: 10.1007/s11465-010-0019-8

Abstract: In this study, a new approach of a two-DOF PRBM is proposed to simulate both the tip locus and tip deflectionangle of large-deflection links for compliant mechanisms on the basis of the angular deflection approximation

Keywords： compliant mechanism     pseudo-rigid-body model (PRBM)     large-deflection link     angular deflection approximation    

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New nonlinear stiffness actuator with predefined torque‒deflection profile

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0721-3

Abstract: springs and especially designed cams, which could perform a predefined relationship between torque and deflectionAn analytical methodology that maps the predefined relationship between torque and deflection to theSimulations of different torque‒deflection profiles were carried out to verify the accuracy and applicabilityof performing predefined torque‒deflection profiles.Three kinds of prototype experiments, including verification experiment of the predefined torque‒deflection

Keywords： compliant actuator     nonlinear stiffness actuator     nonlinear spring     predefined torque−deflection profile    

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Mechanical responses of multi-layered ground due to shallow tunneling with arbitrary ground surface load

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 745-762 doi: 10.1007/s11709-023-0935-4

Abstract: ground responses due to shallow tunneling in multi-layered ground with an arbitrary ground surface load

Keywords： analytical model     mechanical response     multi-layered ground     shallow tunneling     ground surface load    

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Thermal deflection analysis of the solidified shell in continuous casting of slab

LIU Hongzhao, WANG Zhongmin

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 2,   Pages 175-179 doi: 10.1007/s11465-007-0029-3

Abstract: reciprocal theorem of work or Betti-Maxwell s reciprocal theorem and the superposition principle, the deflectionsimply supported, and the other two opposite edges clamped under the action of the uniformly distributed loadThe meaning of each term in the deflection expression obtained by the reciprocal theorem of work is explained

Keywords： s reciprocal     loading     deflection expression     reciprocal     opposite    

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Instantaneous deflection of light-weight concrete slabs

Behnam VAKHSHOURI, Shami NEJADI

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4,   Pages 412-423 doi: 10.1007/s11709-017-0416-8

Abstract: moment together with the influences of ultimate moment capacity and service moment on the instantaneous deflectionmodels in the literature shows considerable differences between the recorded and estimated instantaneous deflectionanalysis of the effective parameters, a new equation is proposed and verified to predict the instantaneous deflection

Keywords： instantaneous deflection     light-weight concrete     expanded polystyrene     effective moment of inertia     cracking    

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Response in piled raft foundation of tall chimneys under along-wind load incorporating flexibility of

B. R. JAYALEKSHMI,S.V. JISHA,R. SHIVASHANKAR

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 3,   Pages 307-322 doi: 10.1007/s11709-015-0288-8

Abstract: The settlements of raft of piled raft foundation, deflection of pile and moments of the pile due to interactionThe effect of SSI in the response of the pile is more significant when the structure-foundation system

Keywords： finite element method     piled raft     tall chimney     soil-structure interaction     along-wind load    

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The Finite Element Analysis for Supporting Wheel Deflection’s Contact of Large-scale Rotary Kiln With

Li Xuejun,Zhang Meiyang,Chu Fulei

Strategic Study of CAE 2007, Volume 9, Issue 12,   Pages 16-20

Abstract:

Because of the influence of rotary kiln supporting wheel's deflectioncontact area's contact stress,  according to Hertz contact theory,  the relative among deflectionelement method,  the contact problems when supporting wheel is under parallel and the maximum deflection

Keywords： large-scale with multi-supporting     supporting wheel deflection     contact stress     finite element analysis    

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Title Author Date Type Operation

Non linear modeling of three-dimensional reinforced and fiber concrete structures

Fatiha IGUETOULENE, Youcef BOUAFIA, Mohand Said KACHI

Journal Article

Influence of axial load on the lateral pile groups response in cohesionless and cohesive soil

Jasim M. ABBASA,Zamri CHIK,Mohd Raihan TAHA

Journal Article

Large deflection behavior effect in reinforced concrete columns exposed to extreme dynamic loads

Masoud ABEDINI, Azrul A. MUTALIB, Chunwei ZHANG, Javad MEHRMASHHADI, Sudharshan Naidu RAMAN, Roozbeh ALIPOUR, Tohid MOMENI, Mohamed H. MUSSA

Journal Article

Improved prediction of pile bending moment and deflection due to adjacent braced excavation

Journal Article

Applications of thermostatically controlled loads for demand response with the proliferation of variable

Meng SONG, Wei SUN

Journal Article

Load shedding scheme for an interconnected hydro-thermal hybrid system with SMES

D. TYAGI, Ashwani KUMAR, Saurabh CHANANA

Journal Article

Analysis on running safety of train on the bridge considering sudden change of wind load caused by wind

Tian ZHANG, He XIA, Weiwei GUO

Journal Article

Load shedding scheme for the two-area system with linear quadratic regulator

D. TYAGI, Ashwani KUMAR, Saurabh CHANANA

Journal Article

Modeling of large-deflection links for compliant mechanisms

Zhonglei FENG, Yueqing YU, Wenjing WANG,

Journal Article

New nonlinear stiffness actuator with predefined torque‒deflection profile

Journal Article

Mechanical responses of multi-layered ground due to shallow tunneling with arbitrary ground surface load

Journal Article

Thermal deflection analysis of the solidified shell in continuous casting of slab

LIU Hongzhao, WANG Zhongmin

Journal Article

Instantaneous deflection of light-weight concrete slabs

Behnam VAKHSHOURI, Shami NEJADI

Journal Article

Response in piled raft foundation of tall chimneys under along-wind load incorporating flexibility of

B. R. JAYALEKSHMI,S.V. JISHA,R. SHIVASHANKAR

Journal Article

The Finite Element Analysis for Supporting Wheel Deflection’s Contact of Large-scale Rotary Kiln With

Li Xuejun,Zhang Meiyang,Chu Fulei

Journal Article