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Energy absorption potential of concrete floors containing secondary (shrinkage and temperature) reinforcements

K. S. SIVAKUMARAN,R. M. KOROL,Xiao FAN

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 3,   Pages 282-291 doi: 10.1007/s11709-014-0269-3

Abstract: the energy absorption potential of two types of concrete floors, namely, normal density concrete and structurallow-density concrete, containing secondary (shrinkage and temperature) reinforcements.The test program considered the following secondary reinforcements: 1) traditional welded-wire steelThe results indicate that floors with secondary reinforcements could play an important role in helping

Keywords： concrete floors     structural low-density concrete     shrinkage and temperature reinforcements     energy absorption    

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templating synthesis of flower-like nickel phyllosilicates and its application as high-performance reinforcements

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10,   Pages 1531-1531 doi: 10.1007/s11705-022-2241-4

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Effect of axial load and transverse reinforcements on the seismic performance of reinforced concrete

Mounir Ait BELKACEM, Hakim BECHTOULA, Nouredine BOURAHLA, Adel Ait BELKACEM

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 831-851 doi: 10.1007/s11709-018-0513-3

Abstract: The aim of this research is to assess the seismic performance of reinforced concrete columns under different axial load and transverse reinforcement ratios. These two parameters are very important as for the ductility, strength, stiffness, and energy dissipation capacity for a given reinforced concrete column. Effects of variable axial load ratio and transverse reinforcement ratio on the seismic performance of reinforced concrete columns are thoroughly analyzed. The finite element computer program Seismo-Structure was used to perform the analysis of series of reinforced concrete columns tested by the second author and other researchers. In order to reflect the reality and grasp the actual behavior of the specimens, special attention was paid to select the models for concrete, confined concrete, and steel components. Good agreements were obtained between the experimental and the analytical results either for the lateral force-drift relationships or for the damage progress prediction at different stages of the loading.

Keywords： reinforced concrete columns     axial load     transverse reinforcement     ductility    

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templating synthesis of flower-like nickel phyllosilicates and its application as high-performance reinforcements

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 4,   Pages 484-497 doi: 10.1007/s11705-021-2074-6

Abstract: The nanocomposites of flower-like nickel phyllosilicate particles incorporated into epoxy resin were fabricated via an in-situ mixing process. The flower-like nickel phyllosilicate particles were firstly synthesized using a mild self-sacrificial templating method, and the morphology and lamellar structure were examined carefully. Several properties of mechanical, thermal and tribological responses of epoxy nanocomposites were performed. It was demonstrated that adequate flower-like nickel phyllosilicate particles dispersed well in the matrix, and the nanocomposites displayed enhanced tensile strength and elastic modulus but decreased elongation at break as expected. In addition, friction coefficient and wear rate were increased first and then decreased along with the particle content, and showed the lowest values at a mass fraction of 5%. Nevertheless, the incorporated flower-like nickel phyllosilicate particles resulted in the continuously increasing thermal stability of epoxy resin (EP) nanocomposites. This study revealed the giant potential of flower-like particles in preparing high-quality EP nanocomposites.

Keywords： nickel phyllosilicate     flow-like structure     mechanical property     thermal stability     tribological performance    

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Approximation of structural damping and input excitation force

Mohammad SALAVATI

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 2,   Pages 244-254 doi: 10.1007/s11709-016-0371-9

Abstract: Structural dynamic characteristics are the most significant parameters that play a decisive role in structuralThe complexity of structural damping mechanisms has made this parameter to be one of the ongoing researchand nonlinear models which are described as the energy dissipation throughout viscous, material or structuralresponses plays an important role in structural identification process.In this paper model-based damping approximation method and a model-less structural input estimation are

Keywords： structural modal parameters     damping identification method     input excitation force identification     Inverse    

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Effects of green roof damping and configuration on structural seismic response

Frontiers of Structural and Civil Engineering   Pages 1133-1144 doi: 10.1007/s11709-023-0959-9

Abstract: Hence, their structural resilience or ability to recover from natural events must be considered comprehensively, nonlinear time-history analyses are conducted on a three-story building in SAP2000 to monitor the structuralThe increased damping in the green roof soil is beneficial to the structural performance, i.e., it reducesAdditionally, certain configurations are more effective and beneficial to the structural response thanBased on the findings of this study, new methods of modeling and considering green roofs in structural

Keywords： green infrastructure     green roof     structural resilience     seismic design    

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Development of an integrated structural health monitoring system for bridge structures in operational

Xinqun ZHU, Hong HAO

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 321-333 doi: 10.1007/s11709-012-0161-y

Abstract: This paper presents an overview of development of an integrated structural health monitoring system.The integrated system includes vibration and guided-wave based structural health monitoring.system under operational conditions and structural evaluation.The study is mainly focused on developing: integrated sensor technology, integrated structural damageidentification with operational loads monitoring, and integrated structural evaluation with results

Keywords： integrated structural health monitoring     operational conditions     vibration and guided wave    

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Digital image correlation-based structural state detection through deep learning

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 45-56 doi: 10.1007/s11709-021-0777-x

Abstract: This paper presents a new approach for automatical classification of structural state through deep learningextraction and classification blocks into an intelligent and compact learning system and detect the structuralstate of a steel frame; the input was a series of vibration signals, and the output was a structuralIt is demonstrated that: 1) the CNN can extract the structural state information from the vibration signals

Keywords： structural state detection     deep learning     digital image correlation     vibration signal     steel frame    

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Identification of structural parameters and boundary conditions using a minimum number of measurement

Ali KARIMPOUR, Salam RAHMATALLA

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1331-1348 doi: 10.1007/s11709-020-0686-4

Abstract: Regression surfaces between the structural parameters and structural output features, represented byAn inverse iterative process is then applied to identify the structural parameters by matching the experimentalthe proposed method will have practical applications in the identification and analysis of restored structural

Keywords： structural model validation     eigenvalue problem     response surface     inverse problems    

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Advanced analysis for structural steel building design

CHEN Wai Fah

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 189-196 doi: 10.1007/s11709-008-0024-8

Abstract: The 2005 AISC LRFD Specifications for Structural Steel Buildings are making it possible for designersto recognize explicitly the structural resistance provided within the elastic and inelastic ranges ofawareness of the need for practical second-order analysis approaches for a direct determination of overall structural

Keywords： building     Specifications     comprehensive introduction     structural resistance     traditional    

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Estimation of optimum design of structural systems via machine learning

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1441-1452 doi: 10.1007/s11709-021-0774-0

Abstract: Three different structural engineering designs were investigated to determine optimum design variablesTo explore the estimation success of ANN models, different test cases were proposed for the three structural

Keywords： optimization     metaheuristic algorithms     harmony search     structural designs     machine learning     artificial    

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Proposal of a probabilistic assessment of structural collapse concomitantly subject to earthquake and

Gholamreza ABDOLLAHZADEH, Hadi FAGHIHMALEKI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 425-437 doi: 10.1007/s11709-017-0427-5

Abstract: In the second step, having the structural destructions of the first step in view, a pushdown analysisFinally, the annual probability of structural collapse under simultaneous earthquake and blast loads

Keywords： gas blast     pushdown analysis     progressive collapse     annual probability of structural collapse     3D model of    

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Stress-strain relationship with soil structural parameters of collapse loess

SHAO Shengjun, LONG Jiyong, YU Qinggao

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 2,   Pages 151-160 doi: 10.1007/s11709-008-0020-z

Abstract: tri-axial shearing tests of unsaturated intact loess and based on the concept of comprehensive soil structuralpotential, this paper reveals the changing laws of soil structural property under the tri-axial stressconditions and establishes a mathematical expression equation of structural parameters, whereby reflectingstrain states, which is introduced into the shearing stress and shearing strain relation to obtain the structural

Keywords： hardening     shearing expansion     unsaturated     structural property     mathematical expression    

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Fatigue Strength Evaluation of Resin-Injected Bolted Connections Using Statistical Analysis

José António Fonseca de Oliveira Correia, Bruno Alexandre Silva Pedrosa, Patrícia Cordeiro Raposo, Abílio Manuel Pinho De Jesus, Helena Maria dos Santos Gervásio, Grzegorz Stanisław Lesiuk, Carlos Alberto da Silva Rebelo, Rui Artur Bartólo Calçada, Luís Alberto Proença Simões da Silva

Engineering 2017, Volume 3, Issue 6,   Pages 795-805 doi: 10.1016/j.eng.2017.12.001

Abstract:

Different strategies can be used to perform reparations and reinforcements of ancient bolted and rivetedThis last study was performed with high-strength low-alloy structural steel plates and an acrylic structural

Keywords： Fatigue     Connections     Structural reinforcements     Structural adhesives     S-N curves     Resin-injected bolts    

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XFEM schemes for level set based structural optimization

Li LI, Michael Yu WANG, Peng WEI

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 335-356 doi: 10.1007/s11465-012-0351-2

Abstract:

In this paper, some elegant extended finite element method (XFEM) schemes for level set method structuralto evaluate their accuracy, which indicate that an accurate analysis result can be obtained on the structuralreducing the time cost and that higher order XFEM elements can improve the computational accuracy of structuralAll numerical results demonstrate that the proposed XFEM is a promising structural analysis approachfor structural optimization with the level set method.

Keywords： structural optimization     level set method     extended finite element method (XFEM)     computational accuracy    

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Title Author Date Type Operation

Energy absorption potential of concrete floors containing secondary (shrinkage and temperature) reinforcements

K. S. SIVAKUMARAN,R. M. KOROL,Xiao FAN

Journal Article

templating synthesis of flower-like nickel phyllosilicates and its application as high-performance reinforcements

Journal Article

Effect of axial load and transverse reinforcements on the seismic performance of reinforced concrete

Mounir Ait BELKACEM, Hakim BECHTOULA, Nouredine BOURAHLA, Adel Ait BELKACEM

Journal Article

templating synthesis of flower-like nickel phyllosilicates and its application as high-performance reinforcements

Journal Article

Approximation of structural damping and input excitation force

Mohammad SALAVATI

Journal Article

Effects of green roof damping and configuration on structural seismic response

Journal Article

Development of an integrated structural health monitoring system for bridge structures in operational

Xinqun ZHU, Hong HAO

Journal Article

Digital image correlation-based structural state detection through deep learning

Journal Article

Identification of structural parameters and boundary conditions using a minimum number of measurement

Ali KARIMPOUR, Salam RAHMATALLA

Journal Article

Advanced analysis for structural steel building design

CHEN Wai Fah

Journal Article

Estimation of optimum design of structural systems via machine learning

Journal Article

Proposal of a probabilistic assessment of structural collapse concomitantly subject to earthquake and

Gholamreza ABDOLLAHZADEH, Hadi FAGHIHMALEKI

Journal Article

Stress-strain relationship with soil structural parameters of collapse loess

SHAO Shengjun, LONG Jiyong, YU Qinggao

Journal Article

Fatigue Strength Evaluation of Resin-Injected Bolted Connections Using Statistical Analysis

José António Fonseca de Oliveira Correia, Bruno Alexandre Silva Pedrosa, Patrícia Cordeiro Raposo, Abílio Manuel Pinho De Jesus, Helena Maria dos Santos Gervásio, Grzegorz Stanisław Lesiuk, Carlos Alberto da Silva Rebelo, Rui Artur Bartólo Calçada, Luís Alberto Proença Simões da Silva

Journal Article

XFEM schemes for level set based structural optimization

Li LI, Michael Yu WANG, Peng WEI

Journal Article