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Validation of a steel dual-core self-centering brace (DC-SCB) for seismic resistance: from brace member

Chung-Che CHOU,Ping-Ting CHUNG,Tsung-Han WU,Alexis Rafael Ovalle BEATO

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 3,   Pages 303-311 doi: 10.1007/s11709-016-0347-9

Abstract: A steel dual-core self-centering brace (DC-SCB) is an innovative structural member that provides bothenergy dissipation and self-centering properties to structures, reducing maximum and residual driftsThe DC-SCB that was near 8 m-long was tested to evaluate its cyclic behavior and durability.The maximum axial load of the DC-SCB was near 1700 kN at an interstory drift of 2.5%.Moreover, a three-story dual-core self-centering braced frame (DC-SCBF) with a single-diagonal DC-SCB

Keywords： dual-core self-centering brace (DC-SCB)     braced frame tests     residual deformation    

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Experimental study of the restoring force mechanism in the self-centering beam (SCB)

Abhilasha MAURYA,Matthew R. EATHERTON

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 3,   Pages 272-282 doi: 10.1007/s11709-016-0346-x

Abstract: In the past, several self-centering (SC) seismic systems have been developed.However, examples of self-centering systems used in practice are limited due to unusual field constructionA self centering beam moment frame (SCB-MF) has been developed that mitigates several of these issuesThe self-centering beam (SCB) is a shop-fabricated, self-contained structural component that when implementedThe limit states that cause a loss in system's restoring force which lead to a decrease in the self-centering

Keywords： self-centering seismic system     seismic design     hysteretic behavior     restoring force     resilient structural    

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Parametric study on seismic performance of self-centering reinforced concrete column with bottom-placed

Frontiers of Structural and Civil Engineering   Pages 1145-1162 doi: 10.1007/s11709-023-0945-2

Abstract: To realize seismic-resilient reinforced concrete (RC) moment-resisting frame structures, a novel self-centeringenergy, the rubber layer allows the rocking of the column, and the unbonded prestressed tendon enables self-centering

Keywords： seismic resilience     self-centering     rubber layer     flag-shaped hysteresis loop     parametric study    

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Parametric study of hexagonal castellated beams in post-tensioned self-centering steel connections

Hassan ABEDI SARVESTANI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1020-1035 doi: 10.1007/s11709-019-0534-6

Abstract: material properties of steel angles) on the behavior of hexagonal castellated beams in post-tensioned self-centeringconnection is comprised of bolted top and bottom angles as energy dissipaters and steel strands to provide self-centering

Keywords： finite element analysis     hexagonal castellated beam     parametric study     post-tensioned self-centering steel    

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Probabilistic safety assessment of self-centering steel braced frame

Navid RAHGOZAR, Nima RAHGOZAR, Abdolreza S. MOGHADAM

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 163-182 doi: 10.1007/s11709-017-0384-z

Abstract: Controlled rocking self-centering system as a modern low-damage system is capable of minimizing the drawbacksThis paper quantifies main limit states and investigates the seismic performance of self-centering bracedMargin of safety, confidence level, and mean annual frequency of the self-centering archetypes for theirResults of the investigation indicate that the design of low- and mid-rise self-centering archetypes

Keywords： self-centering steel braced frame     mean annual frequency     safety assessment     confidence level     margin of    

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Seismic tests of post-tensioned self-centering building frames with column and slab restraints

Chung-Che CHOU, Jun-Hen CHEN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 323-334 doi: 10.1007/s11709-011-0119-5

Abstract: Post-tensioned (PT) self-centering moment frames have been developed as an alternative to typical moment-resistingHowever, the gaps are constrained by the columns and the slab in a real PT self-centering building frameThe PT frame and gravitational frames are self-centering throughout the tests, responding in phase with

Keywords： post-tensioned frame     frame expansion     column restraint     sliding slab     frame test     shake table test    

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Self-centering steel plate shear walls for improving seismic resilience

Patricia M. CLAYTON,Daniel M. DOWDEN,Chao-Hsien LI,Jeffrey W. BERMAN,Michel BRUNEAU,Laura N. LOWES,Keh-Chuan TSAI

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 3,   Pages 283-290 doi: 10.1007/s11709-016-0344-z

Abstract: collaborators at University at Buffalo, and Taiwan National Center for Research on Earthquake Engineering, a self-centeringinvestigated to improve constructability, resilience, and seismic performance and that can be applied to other self-centering

Keywords： self-centering     steel plate shear walls     large-scale experiment     post-tensioned connections     performance-based    

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Computational studies on the seismic response of the State Route 99 bridge in Seattle with SMA/ECC plastic hinges

Jiping GE, M. Saiid SAIIDI, Sebastian VARELA

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 149-164 doi: 10.1007/s11709-018-0482-6

Abstract: This paper reports a computational study on the seismic response of a three-span highway bridge system incorporating conventional and novel substructure details for improved seismic performance. The bridge has three continuous spans supported by two single-column piers and integral abutments founded on drilled shafts. It will be the first full-scale highway bridge to use superelastic shape memory alloy bars (SMA) and engineered cementitious composite (ECC) to mitigate column plastic hinge damage and minimize residual displacements after a strong earthquake. A three-dimensional computational model capturing the nonlinear constitutive response of the novel materials and the effects of dynamic soil-structure interaction was developed to assess the seismic response of the bridge in finite-element software OpenSees. Two versions of the same bridge were analyzed and compared, one with conventional cast-in-place reinforced concrete columns, and the other with top plastic hinges incorporating Nickel-Titanium (NiTi) SMA reinforcing bars and ECC. The novel SMA/ECC plastic hinges were found to substantially reduce damage and post-earthquake residual displacements in the bridge substructure, but led to larger maximum drifts relative to the bridge with conventional reinforced concrete plastic hinges. The analysis results suggested that the novel plastic hinges could lead to improved post-earthquake serviceability of bridges after intense earthquakes.

Keywords： design     analytical simulation     near-fault earthquakes     shape memory alloy     engineered cementitious composite     self-centering    

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AC-DC Power Integration Techniques

Ma Weiming

Strategic Study of CAE 2002, Volume 4, Issue 12,   Pages 53-59

Abstract:

A novel AC — DC machine is invented on the basis of the proposed new idea of electric powerintegration, wherein the stator with one set of 3-phase AC winding and another set of 12-phase DC windingsuitable for self-contained electrical systems, such as those found on aircraft and ships, where good-phase DC winding, the AC voltage distortion caused by DC commutation and the DC voltage pulsation are, laying the foundation for integration of self-contained electrical systems.

Keywords： electric power integration     double-winding AC - DC generator     12-phase rectification     simultaneous AC andDC power supply     self-contained electrical system    

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Research of an Interleaved Low-Voltage/High-Current DC-DC Converter

Wang Ping,Sun Xu,Song Liangyu

Strategic Study of CAE 2005, Volume 7, Issue 4,   Pages 59-63

Abstract: microprocessors were lower than that of the previous ones and the research of low-voltage/high-current DC-DC

Keywords： low-voltage/high-current DC-DC converter     current-doublers     interleaved    

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Toward a nonlinear control of an AC-DC-PWM converter dedicated to induction heating

Amel HADRI-HAMIDA, S. ZEROUALI, A. ALLAG

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 140-145 doi: 10.1007/s11708-013-0243-0

Abstract: In this paper, a nonlinear control strategy applied to an AC-DC-pulse width modulation (PWM) converter

Keywords： DC-DC converter     AC-DC-pulse width modulation (PWM) converter     induction heating     nonlinear control    

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Impact of selection of DC base values and DC link control strategies on sequential AC-DC power-flow convergence

Shagufta KHAN,Suman BHOWMICK

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 399-412 doi: 10.1007/s11708-015-0374-6

Abstract: This paper demonstrates the convergence of the integrated AC-DC power-flow algorithm as affected by theselection of different base values for the DC quantities and adoption of different control strategiesfor the DC link.For power-flow modeling of integrated AC-DC systems, the base values of the various DC quantities canThe sequential method is used to solve the DC variables in the Newton Raphson (NR) power flow model,

Keywords： AC-DC power-flow     Newton-Raphson method     high voltage direct current (HVDC) control strategy    

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Implementation of photovoltaic water pumping system with MPPT controls

Najet REBEI,Ali HMIDET,Rabiaa GAMMOUDI,Othman HASNAOUI

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 187-198 doi: 10.1007/s11708-015-0359-5

Abstract: This optimum duty ratio is the input of a DC/DC boost converter which feeds a set of Moto-pump via aDC/AC inverter.

Keywords： photovoltaic generator (PVG)     maximum power point tracking (MPPT)     boost DC/DC converter     DC/AC inverter    

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A linear quadratic regulator control of a stand-alone PEM fuel cell power plant

Amar BENAISSA, Boualaga RABHI, Ammar MOUSSI, Dahmani AISSA

Frontiers in Energy 2014, Volume 8, Issue 1,   Pages 62-72 doi: 10.1007/s11708-013-0291-5

Abstract: chosen for the simulation consists of a 45 kW proton exchange membrane fuel cell (PEMFC), boost type DC/DC converter, a three-phase DC/AC inverter followed by an LC filter.

Keywords： of proton exchange membrane fuel cell (PEMFC)     controlling of PEMFC     linear quadratic regulator (LQR)     DC/DC converter     DC/AC inverter    

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A toughness based deformation limit for X- and K-joints under brace axial tension

Bo GU,Xudong QIAN,Aziz AHMED

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 3,   Pages 345-362 doi: 10.1007/s11709-016-0333-2

Abstract: ductile fracture failure in fatigue-cracked circular hollow section (CHS) X- and K-joints subjected to bracea zero crack depth, provides an estimate on the deformation limits for intact X- and K-joints under brace

Keywords： circular hollow section (CHS)     tubular joint     fracture failure     deformation limit     J-integral    

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Title Author Date Type Operation

Validation of a steel dual-core self-centering brace (DC-SCB) for seismic resistance: from brace member

Chung-Che CHOU,Ping-Ting CHUNG,Tsung-Han WU,Alexis Rafael Ovalle BEATO

Journal Article

Experimental study of the restoring force mechanism in the self-centering beam (SCB)

Abhilasha MAURYA,Matthew R. EATHERTON

Journal Article

Parametric study on seismic performance of self-centering reinforced concrete column with bottom-placed

Journal Article

Parametric study of hexagonal castellated beams in post-tensioned self-centering steel connections

Hassan ABEDI SARVESTANI

Journal Article

Probabilistic safety assessment of self-centering steel braced frame

Navid RAHGOZAR, Nima RAHGOZAR, Abdolreza S. MOGHADAM

Journal Article

Seismic tests of post-tensioned self-centering building frames with column and slab restraints

Chung-Che CHOU, Jun-Hen CHEN

Journal Article

Self-centering steel plate shear walls for improving seismic resilience

Patricia M. CLAYTON,Daniel M. DOWDEN,Chao-Hsien LI,Jeffrey W. BERMAN,Michel BRUNEAU,Laura N. LOWES,Keh-Chuan TSAI

Journal Article

Computational studies on the seismic response of the State Route 99 bridge in Seattle with SMA/ECC plastic hinges

Jiping GE, M. Saiid SAIIDI, Sebastian VARELA

Journal Article

AC-DC Power Integration Techniques

Ma Weiming

Journal Article

Research of an Interleaved Low-Voltage/High-Current DC-DC Converter

Wang Ping,Sun Xu,Song Liangyu

Journal Article

Toward a nonlinear control of an AC-DC-PWM converter dedicated to induction heating

Amel HADRI-HAMIDA, S. ZEROUALI, A. ALLAG

Journal Article

Impact of selection of DC base values and DC link control strategies on sequential AC-DC power-flow convergence

Shagufta KHAN,Suman BHOWMICK

Journal Article

Implementation of photovoltaic water pumping system with MPPT controls

Najet REBEI,Ali HMIDET,Rabiaa GAMMOUDI,Othman HASNAOUI

Journal Article

A linear quadratic regulator control of a stand-alone PEM fuel cell power plant

Amar BENAISSA, Boualaga RABHI, Ammar MOUSSI, Dahmani AISSA

Journal Article

A toughness based deformation limit for X- and K-joints under brace axial tension

Bo GU,Xudong QIAN,Aziz AHMED

Journal Article