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Numerical analysis of nonlinear dynamic behavior of earth dams

Babak EBRAHIMIAN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 24-40 doi: 10.1007/s11709-010-0082-6

Abstract: A numerical study is conducted to investigate the dynamic behavior of earth dams.The numerical investigation employs a fully nonlinear dynamic finite difference analysis incorporatingparametric study is carried out to identify the effects of dam height, input motion characteristics, soil behaviorFurther, more inelastic behavior and more earthquake energy absorption are observed in higher dams.

Keywords： earth dam     numerical     nonlinear response     dynamic analysis     earthquake     dam height    

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A survey of malware behavior description and analysis Review

Bo YU, Ying FANG, Qiang YANG, Yong TANG, Liu LIU

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 5,   Pages 583-603 doi: 10.1631/FITEE.1601745

Abstract: Behavior-based malware analysis is an important technique for automatically analyzing and detecting malwareAlthough there have been several works focusing on malware behavior analysis, such research is far fromIn this paper, we conduct a survey on malware behavior description and analysis considering three aspects: malware behavior description, behavior analysis methods, and visualization techniques., especially the goals, principles, characteristics, and classifications of behavior analysis techniques

Keywords： Malware behavior     Static analysis     Dynamic Analysis     Behavior data expression     Behavior analysis     Machinelearning     Semantics-based analysis     Behavior visualization     Malware evolution    

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Finite element analysis on the seismic behavior of side joint of Prefabricated Cage System in prefabricated

Yunlin LIU, Shitao ZHU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1095-1104 doi: 10.1007/s11709-019-0538-2

Abstract: Side joint is the weak region of PCS concrete frame and has great influence on seismic behavior of theThus systematically study on the seismic behavior of PCS concrete side joint is necessary.This paper presents a finite element study on behavior of the side joint under seismic loading.In addition, the overall seismic behavior of the side joints in PCS concrete is better than that of the

Keywords： concrete side joint     numerical simulation     fiber-beam element joint model     solid element joint model     seismic behavior    

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Design, analysis, and neural control of a bionic parallel mechanism

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 468-486 doi: 10.1007/s11465-021-0640-8

Abstract: Based on this structure, the rhythmic motion of the parallel mechanism is obtained by supporting state analysis

Keywords： neural control     behavior network     rhythm     motion pattern    

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Static behavior of planar intersecting CFST connection in diagrid structure

Ling LI, Xianzhong ZHAO, Ke KE

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 355-365 doi: 10.1007/s11709-011-0125-7

Abstract: To investigate the static behavior of the intersecting connection of concrete-filled steel tubular (CFSTParametric analysis indicates that bearing capacity of planar intersecting CFST connection mainly depends

Keywords： structure     concrete-filled steel tube     planar intersecting connection     experimental research     mechanism analysis    

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Sensitivity analysis of torsional vibration behavior of the shafting of a turbo generator set to changes

XIE Danmei, ZHANG Hengliang, DONG Chuan, LIU Zhanhui, YANG Changzhu

Frontiers in Energy 2007, Volume 1, Issue 4,   Pages 483-486 doi: 10.1007/s11708-007-0072-4

Abstract: Aiming at a 300 MW turbo-generator model, the sensitivity of natural torsional frequencies and modes of torsional vibration (TV) to the rotational inertia and stiffness of the turbo-generator were analyzed. Calculation results show

Keywords： Calculation     MW turbo-generator     sensitivity     stiffness    

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Analysis of behavior of melted dark green silty soil

TANG Yiqun, ZHOU Nianqing, YANG Ping, SHEN Feng

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 242-245 doi: 10.1007/s11709-008-0022-x

Abstract: The behavior of dark green silty soil of the 6th storey is studied by means of scanning electron microscopy

Keywords： electron microscopy     mechanic     microscopic perspective     addition     dynamic    

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Factors affecting the seismic behavior of segmental precast bridge columns

Haitham DAWOOD,Mohamed ELGAWADY,Joshua HEWES

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 388-398 doi: 10.1007/s11709-014-0264-8

Abstract: This manuscript discusses the design parameters that potentially affect the lateral seismic response of segmental precast post-tensioned bridge piers. The piers consist of precast circular cross section segments stacked one on top of the other with concentric tendons passing through ducts made in the segments during casting. The bottommost segments of the piers were encased in steel tubes to enhance ductility and minimize damage. An FE model was used to investigate different design parameters and how they influence the lateral force – displacement response of the piers. Design parameters investigated included the initial post-tensioning stress as a percentage of the tendon yield stress, the applied axial stresses on concrete due to post-tensioning, pier aspect ratios, construction details, steel tube thicknesses, and internal mild steel rebar added as energy dissipaters. Based on the data presented, an initial tendon stress in the range of 40%-60% of its yield stress and initial axial stress on concrete of approximately 20% of the concrete’s characteristic strength is appropriate for most typical designs. These design values will prevent tendon yielding until lateral drift angle reaches approximately 4.5%. Changing the steel tube thickness, height, or a combination of both proved to be an effective parameter that may be used to reach a target performance level at a specific seismic zone.

Keywords： finite element analysis     concrete     precast units     bridges    

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Simplified theoretical analysis and numerical study on the dynamic behavior of FCP under blast loads

Chunfeng ZHAO, Xin YE, Avinash GAUTAM, Xin LU, Y. L. MO

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 983-997 doi: 10.1007/s11709-020-0633-4

Abstract: study, a theoretical model and nonlinear 3D model are developed and established to assess the dynamic behavior

Keywords： precast structure     fabricated concrete panel     blast resistance     theory model     empirical equation    

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Effect of anisotropic characteristics on the mechanical behavior of asphalt concrete overlay

Lingyun YOU, Zhanping YOU, Kezhen YAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 110-122 doi: 10.1007/s11709-018-0476-4

Abstract: the influence of the degree of anisotropy on the mechanical behaviors of AC overlay by a sensitivity analysisComparing the mechanical behavior in terms of surface deflection, stress, and strain of the anisotropymodel under static loads show that the anisotropic properties had greater effects on the mechanical behavior

Keywords： concrete overlay     anisotropy     temperature gradients     modulus gradients     finite element simulation     sensitivity analysis    

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Evaluation method of dam behavior during construction and reservoir filling and application to real dams

Yuji KOHGO, Akira TAKAHASHI, Tomokazu SUZUKI,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1,   Pages 92-101 doi: 10.1007/s11709-010-0009-2

Abstract: This method is valid for estimating behavior of fill-type dams during construction and impounding.

Keywords： fill dam     consolidation analysis     unsaturated geo-materials     impounding     construction    

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Research on operation behavior of multiple arch dam

Gu Chongshi,Li Xuehong

Strategic Study of CAE 2000, Volume 2, Issue 10,   Pages 93-97

Abstract: of Meishan and Foziling multiple arch dams are comparatively analyzed with many kinds of models and analysis

Keywords： multiple arch dam     operation behavior     unfavorable loading condition     comparative analysis    

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Analysis of Owner-designer`s Behavior in Chinese Construction Projects

Pan Pengcheng ,Liu Yingzong

Strategic Study of CAE 2007, Volume 9, Issue 7,   Pages 57-60

Abstract:

In the construction projects invested by Chinese government, the owners are often affected by their personal preference such as taste standpoint or individual achievement when they are making decisions. At the same time, the designer caters to the owner's pleasure for the sake of benefit. As a result, there are too many"face projects" , "achievement projects" in China`s cities. The principal-agent model is used in this article to analyze the change of owners`investment benefit and designers' effort under law-abiding and speculation conditions. It is concluded that the speculation activities can be efficiently reduced by strengthening supervision power and increasing the owners' and the designers' political risk cost.

Keywords： construction industry     owner     designer     behavior     principal-agent    

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The dehydration behavior and non-isothermal dehydration kinetics of donepezil hydrochloride monohydrate

Tiantian LIU, Yuanyuan RAN, Bochao WANG, Weibing DONG, Songgu WU, Junbo GONG

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1,   Pages 55-63 doi: 10.1007/s11705-013-1352-3

Abstract: changes occurring during the desolvation process, including dynamic vapor sorption measurements, thermal analysisForm I showed the characteristics of the channel hydrate, whose non-isothermal dehydration behavior proceeds

Keywords： dehydration     thermal analysis     transformation     dehydration kinetics    

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An artificial neural network model on tensile behavior of hybrid steel-PVA fiber reinforced concrete

Fangyu LIU, Wenqi DING, Yafei QIAO, Linbing WANG

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1299-1315 doi: 10.1007/s11709-020-0712-6

Abstract: The tensile behavior of hybrid fiber reinforced concrete (HFRC) is important to the design of HFRC andThis study used an artificial neural network (ANN) model to describe the tensile behavior of HFRC.Finally, the sensitivity analysis of the ANN model is also performed to analyze the contribution of each

Keywords： artificial neural network     hybrid fiber reinforced concrete     tensile behavior     sensitivity analysis     stress-strain    

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Title Author Date Type Operation

Numerical analysis of nonlinear dynamic behavior of earth dams

Babak EBRAHIMIAN

Journal Article

A survey of malware behavior description and analysis

Bo YU, Ying FANG, Qiang YANG, Yong TANG, Liu LIU

Journal Article

Finite element analysis on the seismic behavior of side joint of Prefabricated Cage System in prefabricated

Yunlin LIU, Shitao ZHU

Journal Article

Design, analysis, and neural control of a bionic parallel mechanism

Journal Article

Static behavior of planar intersecting CFST connection in diagrid structure

Ling LI, Xianzhong ZHAO, Ke KE

Journal Article

Sensitivity analysis of torsional vibration behavior of the shafting of a turbo generator set to changes

XIE Danmei, ZHANG Hengliang, DONG Chuan, LIU Zhanhui, YANG Changzhu

Journal Article

Analysis of behavior of melted dark green silty soil

TANG Yiqun, ZHOU Nianqing, YANG Ping, SHEN Feng

Journal Article

Factors affecting the seismic behavior of segmental precast bridge columns

Haitham DAWOOD,Mohamed ELGAWADY,Joshua HEWES

Journal Article

Simplified theoretical analysis and numerical study on the dynamic behavior of FCP under blast loads

Chunfeng ZHAO, Xin YE, Avinash GAUTAM, Xin LU, Y. L. MO

Journal Article

Effect of anisotropic characteristics on the mechanical behavior of asphalt concrete overlay

Lingyun YOU, Zhanping YOU, Kezhen YAN

Journal Article

Evaluation method of dam behavior during construction and reservoir filling and application to real dams

Yuji KOHGO, Akira TAKAHASHI, Tomokazu SUZUKI,

Journal Article

Research on operation behavior of multiple arch dam

Gu Chongshi,Li Xuehong

Journal Article

Analysis of Owner-designer`s Behavior in Chinese Construction Projects

Pan Pengcheng ,Liu Yingzong

Journal Article

The dehydration behavior and non-isothermal dehydration kinetics of donepezil hydrochloride monohydrate

Tiantian LIU, Yuanyuan RAN, Bochao WANG, Weibing DONG, Songgu WU, Junbo GONG

Journal Article

An artificial neural network model on tensile behavior of hybrid steel-PVA fiber reinforced concrete

Fangyu LIU, Wenqi DING, Yafei QIAO, Linbing WANG

Journal Article