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Ductility reduction factor for zipper-braced frames
European Journal of Environmental and Civil Engineering, 2016Current seismic provisions allow structures to experience inelastic deformation as a means of energy dissipation during severe earthquakes.
J. Vaseghi Amiri +2 more
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Ductility and ductility reduction factor for MDOF systems
Structural Engineering and Mechanics, 2002Ductility capacity is comprehensively studied for steel moment-resisting frames. Local, story and global ductility are being considered. An appropriate measure of global ductility is suggested. A time domain nonlinear seismic response algorithm is used to evaluate several definitions of ductility.
A. Reyes-Salazar
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Determination of ductility factor considering different hysteretic models
Earthquake Engineering & Structural Dynamics, 1999In current seismic design procedures, base shear is calculated by the elastic strength demand divided by the strength reduction factor. This factor is well known as the response modification factor, R, which accounts for ductility, overstrength, redundancy, and damping of a structural system.
Li Hyung Lee +2 more
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Investigation of dynamic P-Δ effect on ductility factor
Structural Engineering and Mechanics, 2001Current seismic design provisions allow structures to deform into inelastic range during design level earthquakes since the chance to meet such event is quite rare. For this purpose, design base shear is defined in current seismic design provisions as the value of elastic seismic shear force divided by strength reduction factor, R ().
Sang Whan Han +2 more
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The ductility reduction factor in the seismic design of buildings
Earthquake Engineering & Structural Dynamics, 1998This paper presents new trends in the relationship between the ductility reduction factor and the ductility demand in the seismic design of buildings. A total of 4860 inelastic time-history analyses were carried out to study this relationship using 60 single-degree-of-freedom models excited by an ensemble of 81 earthquake accelerogram records from ...
Nelson Lam +2 more
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Physical factors controlling the ductility of bulk metallic glasses
Applied Physics Letters, 2008 In order to identify key physical factor controlling the deformation and fracture behavior of bulk metallic glasses (BMGs), we compiled and analyzed the elastic moduli and compressive ductility for BMGs. In addition, new modulus data were generated in the critical ranges in order to facilitate the analysis. We have found that the intrinsic ductility of
Y. Liu +4 more
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DUCTILITY REDUCTION FACTOR OF MDOF SHEAR-BUILDING STRUCTURES
Journal of Earthquake Engineering, 2001In this paper, the results of recent studies on inelastic seismic response of MDOF shear-building structures are presented. In the last few decades, the concept of response modification factor R has been introduced and developed to account for inelastic nonlinear behaviour of structures under earthquakes.
H. MOGHADDAM, R. K. MOHAMMADI
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Ductility Factor Evaluation of Concrete Moment Frame Retrofitted by FRP Subjected to Seismic Loads
, 2020Most of the reinforced concrete buildings that have been constructed are not earthquake resistant or have not sufficient and acceptable resistance.
H. K. Sultan +4 more
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Factors Affecting the Ductility of Cold-Sprayed Copper Coatings
Journal of Thermal Spray Technology, 2020In order to provide a basis for future optimization and control of the cold spray process, we experimentally studied the impact of various factors on the ductility (% elongation) of copper coatings. For the current application, cold-sprayed copper is employed as a corrosion barrier on carbon steel, while in addition to this, sufficient ductility is ...
Guerreiro, Bruno +5 more
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