Seismic performance of beam–column joints with SMA tendons strengthened by steel angles

Wang, Wei; Chan, Tak Ming; Shao, Hongliang

doi:10.1016/j.jcsr.2015.02.011

Cited by 52 publications

(16 citation statements)

References 8 publications

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“…Wei et al [2] successfully adopted a similar finite element methodology to replicate the experimental observations on the beam-column joints with SMA tendons strengthened by steel angles under cyclic loads.…”

Section: Finite Element Methodologymentioning

confidence: 99%

“…Therefore, a novel steel structural system that can demonstrate adequate recentering performance and energy dissipation is needed to address such shortfalls. Recently the application of shape memory alloys (SMAs), particularly with NiTi, has attracted considerable attention [1,2]. SMAs are a class of alloys which display a unique ability to undergo large deformation and return to their original un-deformed shape upon heating (known as the shape memory effect-SME), or by relieving the stress that causes the deformation (known as the super-elastic effect-SE) [3].…”

Section: Introductionmentioning

confidence: 99%

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Numerical investigation on I-beam to CHS column connections equipped with NiTi shape memory alloy and steel tendons under cyclic loads

2015

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Section: Finite Element Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical investigation on I-beam to CHS column connections equipped with NiTi shape memory alloy and steel tendons under cyclic loads

2015

Self Cite

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“…The connections consist of plates especially designed to yield under loading and dissipate the seismic energy. Some examples include: the PI damper connection (Koetaka et al, 2005), the slit damper connection (Chan and Albermani, 2008;Oh et al, 2009;Saffari et al, 2013), double split tee (DST) connections (Herrera et al, 2013;Bravo and Herrera, 2014;Latour and Rizzano, 2015;Tong et al, 2016), dissipative splice connections (Calado et al, 2013;Valente et al, 2017a,b), or connections with memory shape alloy bolts (Wang et al, 2015;Yam et al, 2015).…”

Section: Past Studies Regarding Classic Beam-to-column Connectionsmentioning

confidence: 99%

Beam-to-Column Connections with Demountable Energy Dissipative Plates

Venghiac

Stașcov

Budescu

2018

Front. Built Environ.

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The behavior of steel structures subjected to seismic actions depends directly on the connections behavior. There are two current tendencies for ensuring the structural ductility: allowing the formation of plastic hinges in the beams by using reduced beam sections or reduced web sections or by ensuring the plastic hinge formation in the connection by using dissipative elements. This paper presents a new perspective regarding the energy dissipation mechanism formation within the beam-to-column connection. The design of connections capable of dissipating large amounts of energy, with an acceptable strength and ductile behavior is a real challenge for engineers. Sustainability is a big advantage for these connections. Another big advantage is the possibility of restoring the functionality of the damaged construction in a short time interval and with reduced costs. The introduction of connections with demountable energy dissipative plates can be a step forward in designing new beam-to-column connections for steel structures.

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“…For example, a bi-stable von-Mises truss (VMT) integrated with SMA wires to provide the actuation force for the transition of the VMT between two stable equilibrium conditions [35]. SMA wires have been designed to column joint with a beam towards the stiffness and energy dissipative ability [36]. Moreover, SMA wires are designed as a suspension to support a rotor-bearing test rig to reduce the vibration level of rotating systems [37].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear dynamics of shape memory alloys actuated bistable beams

Zhang

et al. 2019

Smart Mater. Struct.

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The phenomenon of bi-stable behaviour has been widely used in the structural design, as it can provide large deformation by switching between two stable equilibrium positions. This paper aims to investigate the intrinsic nonlinear dynamic characteristics of an actively controlled bistable beam using a simplified spring-mass model. The dynamic model for an active (heated) SMA wire driven bistable beam is established based on a polynomial constitutive equation to describe the thermomechanical behaviour of the shape memory alloy. The actively controlled bistable beams are designed, fabricated and experimentally tested to achieve the morphing behaviour snappingthrough form one position to another. The results obtained from the experimental testing and the theoretical simulation are compared to validate the proposed model. Dynamic behavior of the proposed SMA wires actuated bistable beam under varying external excitation is investigated to show the influence of the thermomechanical loadings. Analysis of the experimental data and simulation results shows that the SMA wires actuated bistable structure can be well-performed for the bistable switching. It also approved that the different behaviours of the system, including periodic responses, complex responses and chaos can be accurately predicted using the proposed simplified model.

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Seismic performance of beam–column joints with SMA tendons strengthened by steel angles

Cited by 52 publications

References 8 publications

Numerical investigation on I-beam to CHS column connections equipped with NiTi shape memory alloy and steel tendons under cyclic loads

Numerical investigation on I-beam to CHS column connections equipped with NiTi shape memory alloy and steel tendons under cyclic loads

Beam-to-Column Connections with Demountable Energy Dissipative Plates

Nonlinear dynamics of shape memory alloys actuated bistable beams

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