Results 251 to 260 of about 50,824 (306)

Ductility reduction factor for zipper-braced frames

European Journal of Environmental and Civil Engineering, 2016
Current seismic provisions allow structures to experience inelastic deformation as a means of energy dissipation during severe earthquakes.
J. Vaseghi Amiri, M. Esmaeilnia Amiri, B. Ganjavi   +2 more
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DUCTILITY REDUCTION FACTOR OF MDOF SHEAR-BUILDING STRUCTURES

Journal of Earthquake Engineering, 2001
In 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 Reduction Factors for Masonry-Infilled Reinforced Concrete Frames

Earthquake Spectra, 2015
Masonry-infilled reinforced concrete (RC) frames are popular structural systems; however, there is much uncertainty in their response under seismic loads. Using the data from past experimental studies, a simple force-deformation model with three control points was developed. The effect of the model parameters on the ductility reduction factor (DRF) and
Manish Kumar, Durgesh C. Rai, Sudhir K. Jain   +2 more
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Evaluating the ductility reduction factors of SDOF self-centering earthquake-resisting structural systems

Bulletin of Earthquake Engineering, 2021
In the past two decades, considerable research works have been directed toward the development of self-centering (SC) earthquake resisting structural systems that are able to make structures usable and repairable after strong ground motions. The focus of these research works is on eliminating the residual deformations and on preventing the earthquake ...
Hamdy Abou-Elfath, Mostafa Ramadan, Emad Elhout   +2 more
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Inelastic Displacement Amplification Factor for Ductile Structures with Constant Strength Reduction Factor

Advances in Structural Engineering, 2010
Based on elastic-plastic time-history earthquake analysis of the single degree of freedom (SDOF) system, the inelastic displacement amplification factor Cd2 of the elastic-perfectly plastic (EPP) model with the same yield strength reduction was investigated for different normalized periods T/TgR, site types, strength reduction factors R, damping ...
Yongfeng Zhao, Genshu Tong
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Ductility reduction factors for steel buildings considering different structural representations

Bulletin of Earthquake Engineering, 2014
The global ductility parameter $$(\mu _{G})$$ , commonly used to represent the capacity of a structure to dissipate energy, and its effects, considered through the ductility reduction factor
Alfredo Reyes-Salazar, Edén Bojórquez, Juan I. Velazquez-Dimas, Arturo López-Barraza, J. Luz Rivera-Salas   +4 more
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Seismic Ductility Reduction Factors for Multi-Degree-of-Freedom Systems

Advances in Structural Engineering, 2006
This paper reports on investigations into seismic ductility reduction factors for MDOF systems. Ductility reduction factors for MDOF systems are obtained by modifying ductility reduction factors of SDOF systems through a modification factor. Based on China's seismic code, MDOF lumped-mass shear-type models are introduced and employed to study the ...
Jian Cai, Jing Zhou, Xiaodan Fang
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The ductility reduction factor in the seismic design of buildings

Earthquake Engineering & Structural Dynamics, 1998
This 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, John Wilson, Graham Hutchinson   +2 more
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Ductility and ductility reduction factor for MDOF systems

Structural Engineering and Mechanics, 2002
Ductility 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.
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Ductility reduction factors for earthquake design

Engineering Structures, 1980
Abstract This paper shows how, given a fixed set of design limitations, proper use of ductility values for different classes of structures enables an economic design to be developed for earthquake loadings.
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