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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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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
exaly   +2 more sources

Ductility reduction factor and collapse mechanism evaluation of a new steel knee braced frame

Structure and Infrastructure Engineering, 2015
In this study, the suitability of a new structural system called the knee braced frames (KBFs) is investigated for seismic resistant steel structures. In these structural systems, ends of beams are connected to columns by hinges (simple connection) instead of rigid connections, and ends of knee braced elements are connected to columns and beams by ...
Abazar Asghari, Amir H. Gandomi
openaire   +2 more sources

The ductility reduction factor in the seismic design of buildings

Earthquake Engineering and 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, J Wilson
exaly   +2 more sources

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.
Alfredo Reyes-Salazar, Reyes-Salazar Alfredo   +1 more
exaly   +2 more sources

Scaling of ductility and damage-based strength reduction factors for horizontal motions

Earthquake Engineering and Structural Dynamics, 2000
The conventional approach of obtaining the inelastic response spectra for the aseismic design of structures involves the reduction of elastic spectra via response modification factors. A response modification factor is usually taken as a product of (i) strength factor, RS, (ii) ductility factor, Rμ, and (iii) redundancy factor, RR.
Vinay K Gupta
exaly   +2 more sources

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
exaly   +2 more sources

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, Eden Bojorquez, Reyes-Salazar Alfredo   +2 more
exaly   +2 more sources

Ductility Reduction Factors for Steel Buildings Modeled as 2D and 3D Structures

Applied Mechanics and Materials, 2014
The global ductility parameter (μG), commonly used to represent the capacity of a structure to dissipate energy, and the associated ductility reduction factor (Rμ), are estimated for steel buildings with perimeter moment resisting frames (PMRF), which are modeled as 2D and 3D complex MDOF systems.
Alfredo Reyes-Salazar, Eden Bojorquez, Achintya Haldar   +2 more
exaly   +2 more sources

Examination of Ductility and Seismic Diaphragm Design Force-Reduction Factors for Steel Deck and Composite Diaphragms

Journal of Structural Engineering, 2020
AbstractThis paper analyzes the ductility and overstrength of steel deck diaphragms and composite concrete on steel deck diaphragms and computes associated diaphragm design force-reduction factors,...
Matthew R Eatherton
exaly   +2 more sources