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Estimating moment capacity of ferrocement members using self-evolving network

Abdussamad ISMAIL

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 926-936 doi: 10.1007/s11709-019-0527-5

Abstract: The model is meant to serve as a simple but reliable tool for estimating the moment capacity of ferrocementThe data consists of information regarding flexural tests on ferrocement specimens which include momentcapacity and cross-sectional dimensions of specimens, concrete cube compressive strength, tensile strengthproposed models with experimental data indicated that the models are capable of accurately estimating the momentcapacity of ferrocement members.

Keywords： ferrocement     moment capacity     self-evolving neural network    

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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: Effects of aggregate type, loading levels and cracking moment together with the influences of ultimatemoment capacity and service moment on the instantaneous deflection of slabs are studied.

Keywords： instantaneous deflection     light-weight concrete     expanded polystyrene     effective moment of inertia     crackingmoment     moment capacity     service moment    

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Shaking-moment balancing of mechanisms with principal vectors and momentum

V. van der WIJK

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1,   Pages 10-16 doi: 10.1007/s11465-013-0359-2

Abstract:

The design of shaking-moment-balanced linkages still is challenging.Considering moment balance in the very beginning of the design process of mechanisms is important forThe moment balance conditions are derived for three elements in series from which balance solutions areFrom the application for moment balancing of a 4R four-bar linkage it is shown that the moment balancing

Keywords： shaking-moment balancing     principal vector linkage     angular momentum    

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Assessment of an alternative to deep foundations in compressible clays: the structural cell foundation

Sergio A. MARTÍNEZ-GALVÁN, Miguel P. ROMO

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 67-80 doi: 10.1007/s11709-017-0399-5

Abstract: The new type of deep foundation for buildings on saturated, compressible-low strength clayey soil deposits, branded structural cell essentially consists of a rigid concrete top slab, structurally connected to reinforced concrete peripheral walls (diaphragms) that enclose the natural soil. Accordingly, as the initial volume of the confined soft clays within the lateral stiff diaphragms will remain constant upon loading, the hollowed structural cell will be “transformed” into a very large cross-section pillar of unit weight slightly higher than that of the natural soft clayey soil. This type of foundation seems to be a highly competitive alternative to the friction pile-box foundations (widely used in Mexico City clays), due to its economic and environmental advantages. Economies result, for example, from the absence of huge excavations hence sparing the need of earth retaining structures. Further savings result from appreciably smaller concrete volumes required for building the structural cell than the friction pile-box foundation; moreover, the construction time of the former is much shorter than that of the latter. Regarding the impact to the environment, less air contamination follows from the fact that both traffic jams and soil excavation lessen appreciably. Considering these facts and others regarding scheduling, it was decided to replace 48-friction pile-box foundations specified in the master plan project by this new type of foundation. The overall behavior of these cell foundations over a five-year period is fared from close visual observations and their leveling during the first three years after their construction.

Keywords： deep foundations     bearing capacity     resistant moment     structural cell     3D numerical modeling    

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Initial stiffness and moment resistance of reinforced joint with end-plate connection

Sufang WANG, Yiyi CHEN,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4,   Pages 345-351 doi: 10.1007/s11709-009-0054-x

Abstract: The design moment resistance of column flange reinforced by backing plate is deduced based on yield linemethod, and the design moment resistances of other components are deduced based on present codes.The design moment resistance of the reinforced joint is then determined by the minimum of the designmoment resistances of all components.

Keywords： steel structure     end-plate connection     backing plate     supplementary web plate     initial stiffness     moment resistance    

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Rare-earth separation based on the differences of ionic magnetic moment via quasi-liquid strategy

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1584-1594 doi: 10.1007/s11705-022-2189-4

Abstract: The differences of the ionic magnetic moment among rare earths are greater than that of ionic radius.Herein, a novel method based on the large ionic magnetic moment differences of rare earth elements wasliquid, then the ordering degree of them was improved with the Z-bond effect, and finally the magnetic moment

Keywords： rare earth element     different magnetic moment     magnetic separation     ionic liquid    

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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 byIt is practically unfeasible to obtain measurement data; hence, artificial data for the bending momentThe 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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High-order moment methods for LRFD including random variables with unknown probability distributions

Zhao-Hui LU, Yan-Gang ZHAO, Zhi-Wu YU

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 3,   Pages 288-295 doi: 10.1007/s11709-013-0210-1

Abstract: In this paper, the high-order moment methods for LRFD including random variables with unknown probabilityiterative computation of derivatives nor any design points; 3) In the applicable range of the high-order moment

Keywords： high-order moment methods     applicable range     load and resistance factors     target mean resistance    

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Damage identification in connections of moment frames using time domain responses and an optimization

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 851-866 doi: 10.1007/s11709-021-0739-3

Abstract: In this study, an optimization-based method for joint damage identification of moment frames using theThe beam-to-column connection in a metallic moment frame structure is modeled by a zero-length rotational

Keywords： damage identification     beam-to-column connection     time-domain response     optimization    

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Estimation of load and resistance factors using the third-moment method based on the 3P-lognormal distribution

Yan-Gang ZHAO, Zhao-Hui LU

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 315-322 doi: 10.1007/s11709-011-0117-7

Abstract: In this article, the third-moment reliability index, based on the three-parameter lognormal (3P-lognormalA simple method based on the third-moment method for estimating load and resistance factors is then proposedNumerical examples are presented to demonstrate the advantages of the proposed third moment method for

Keywords： load and resistance factors     third-moment method     three-parameter lognormal (3P-lognormal) distribution    

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Seismic performance of moment resisting steel frame subjected to earthquake excitations

Fadzli M. NAZRI, Pang Yew KEN

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1,   Pages 19-25 doi: 10.1007/s11709-014-0240-3

Abstract: Pushover analysis (POA) and incremental dynamic analysis (IDA) were run on moment resisting steel frames

Keywords： incremental dynamic analysis (IDA)     pushover analysis     performance-based seismic design    

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An innovative model for predicting the displacement and rotation of column-tree moment connection under

Mohammad Ali NAGHSH, Aydin SHISHEGARAN, Behnam KARAMI, Timon RABCZUK, Arshia SHISHEGARAN, Hamed TAGHAVIZADEH, Mehdi MORADI

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 194-212 doi: 10.1007/s11709-020-0688-2

Abstract: study, we carried out nonlinear finite element simulations to predict the performance of a column-tree moment

Keywords： column-tree moment connection     Finite element model     parametric study     fire     regression models     gene expression    

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Moment-curvature relationship of FRP-concrete-steel double-skin tubular members

Mingxue LIU, Jiaru QIAN

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 25-31 doi: 10.1007/s11709-009-0012-7

Abstract: The strip method was used to calculate the section moment-curvature curves of the 3 specimens and 12The load-carrying capacity did not decrease even when the mid-span deflection reached about 1/24 of thetheoretical analysis resulted in a simplified formula for the flexural strength of DSTMs and a tri-linear moment-curvature

Keywords： fiber reinforced polymer (FRP)     concrete     steel     double-skin tubular members (DSTMs)     moment-curvature curve    

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Field validation of UHPC layer in negative moment region of steel-concrete composite continuous girder

Minghong QIU; Xudong SHAO; Weiye HU; Yanping ZHU; Husam H. HUSSEIN; Yaobei HE; Qiongwei LIU

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 6,   Pages 744-761 doi: 10.1007/s11709-022-0843-z

Abstract: Improving the cracking resistance of steel-normal concrete (NC) composite beams in the negative momentThis study proposed an innovative structural configuration for the negative bending moment region ininvestigate the feasibility and effectiveness of this new UHPC jointed structure in the negative bending moment, strains on the surface of the concrete bridge deck, rebar, and steel beam in the negative bending momentthe new configuration with the UHPC layer provided an effective alternative for the negative bending moment

Keywords： field test     steel-concrete composite beam     continuous girder bridge     negative bending moment region    

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Higher Moment Method in Reliability Analysis of Engineering Structure

Gong Fengqiang,Li Xibing,Deng Jian

Strategic Study of CAE 2006, Volume 8, Issue 5,   Pages 69-73

Abstract:

A higher moment method with the basis of Chebyshev polynomial { Tk(x)} is presented, which

Keywords： structure reliability     higher moment     Chebyshev polynomial     failure probability    

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Title Author Date Type Operation

Estimating moment capacity of ferrocement members using self-evolving network

Abdussamad ISMAIL

Journal Article

Instantaneous deflection of light-weight concrete slabs

Behnam VAKHSHOURI, Shami NEJADI

Journal Article

Shaking-moment balancing of mechanisms with principal vectors and momentum

V. van der WIJK

Journal Article

Assessment of an alternative to deep foundations in compressible clays: the structural cell foundation

Sergio A. MARTÍNEZ-GALVÁN, Miguel P. ROMO

Journal Article

Initial stiffness and moment resistance of reinforced joint with end-plate connection

Sufang WANG, Yiyi CHEN,

Journal Article

Rare-earth separation based on the differences of ionic magnetic moment via quasi-liquid strategy

Journal Article

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

Journal Article

High-order moment methods for LRFD including random variables with unknown probability distributions

Zhao-Hui LU, Yan-Gang ZHAO, Zhi-Wu YU

Journal Article

Damage identification in connections of moment frames using time domain responses and an optimization

Journal Article

Estimation of load and resistance factors using the third-moment method based on the 3P-lognormal distribution

Yan-Gang ZHAO, Zhao-Hui LU

Journal Article

Seismic performance of moment resisting steel frame subjected to earthquake excitations

Fadzli M. NAZRI, Pang Yew KEN

Journal Article

An innovative model for predicting the displacement and rotation of column-tree moment connection under

Mohammad Ali NAGHSH, Aydin SHISHEGARAN, Behnam KARAMI, Timon RABCZUK, Arshia SHISHEGARAN, Hamed TAGHAVIZADEH, Mehdi MORADI

Journal Article

Moment-curvature relationship of FRP-concrete-steel double-skin tubular members

Mingxue LIU, Jiaru QIAN

Journal Article

Field validation of UHPC layer in negative moment region of steel-concrete composite continuous girder

Minghong QIU; Xudong SHAO; Weiye HU; Yanping ZHU; Husam H. HUSSEIN; Yaobei HE; Qiongwei LIU

Journal Article

Higher Moment Method in Reliability Analysis of Engineering Structure

Gong Fengqiang,Li Xibing,Deng Jian

Journal Article