Results 261 to 270 of about 1,756,114 (279)

Evaluating response modification factors of Open-frames Steel Platforms

2014
This study attempt to evaluate over strength, ductility and response modification factors of open-frames steel platforms that are commonly found in industrial and manufacture facilities. Static pushover analyses were carried out to evaluate the seismic response modification factor for these structures considering their unique detailing requirements ...
Salem, Yasser, Nasr, Ahmed
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Role of Damage Functions in Evaluation of Response Modification Factors

Journal of Structural Engineering, 2004
From the study of the nonlinear behavior of single degree of freedom (SDOF) oscillators, response modification factor spectra corresponding to failure conditions of structures are assessed by means of damage indices. Two different damage indices are used: one that neglects and one that takes into account the way in which the hysteretic energy is ...
Luis D. Decanini, Silvia Bruno, Fabrizio Mollaioli   +2 more
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Response modification factor evaluation for vertically irregular MRF buildings

Proceedings of the Institution of Civil Engineers - Structures and Buildings
Most design codes evaluate the non-linear seismic performance of structures using the response reduction/modification factor (R). The value of R is sensitive to a variety of factors in terms of overall ductility and over-strength. In this work, actual R values were assessed for vertical irregularity cases for reinforced concrete bare buildings with ...
Momen Mohamed M. Ahmed, Mohamed Abdel-Basset Abdo, Waleed Abo El-Wafa Mohamed   +2 more
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Oral Mucosa: Response Modification by Keratinocyte Growth Factor

2003
Keratinocyte growth factor (KGF) was first described in humans in 1989 (Rubin et al. 1989) as a factor stimulating proliferation of epithelial cells. It is a heparin-binding member of the fibroblast growth factor group (FGF) family (Finch et al. 1989) and is alternatively denoted as FGF-7.
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Seismic Response Modification Factor of Eccentrically Brace Steel Frame

Applied Mechanics and Materials, 2011
Seismic response modification factor (R) and displacement amplification factor (Cd) are very important parameters to compute seismic force and to verify elasto-plasticity deformation in advanced seismic design. According to the present China Code for Seismic Design of Buildings,15 eccentrically braced steel frames are designed. R & Cd of 15 samples
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Response modification factor of steel frames utilizing shape memory alloys

Journal of Intelligent Material Systems and Structures, 2013
Shape memory alloys are unique metallic alloys that have the ability to undergo large deformations while reverting back to their original undeformed shape, which provides recentering capabilities to the braced frame. In this article, the seismic response of steel braced frames employing shape memory alloy braces is evaluated.
Mehdi Ghassemieh, Ramtin Kargarmoakhar
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Response Modification Factor for Y-Eccentric-Braced Steel Frame Structures

Advanced Materials Research, 2011
In current seismic design procedure, structural base shear is calculated according to the linear elastic response spectra divided by response modification factorR. The response modification factor is important to the reliability and economy of building seismic design.
Wen Xia Yang, Qiang Gu, Zhen Sen Song
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Seismic Response Modification Factors for Wharf Structures in Chile

2019
Presented at: Coastal Structures Conference 2019, Hannover, Germany, September 30th – October 2nd ...
Montero, Guillermo, De la Barra, Camilo, Novoa, Nelson   +2 more
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Evaluation of response modification factor (R) of elevated concrete tanks

Engineering Structures, 2012
Abstract This paper discusses the failure mechanism of elevated concrete tanks with shaft and frame staging (supporting system) along with seismic behavior of these construction types. In order to modify the current code-based seismic design methodology, computer models have been established to determine the response modification factors, R , of the
Mostafa Masoudi, Sassan Eshghi, Mohsen Ghafory-Ashtiany   +2 more
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Simplified Damping Modification Factor for Vertical Response Spectra

2023
Ravi Kanth Sriwastav, Dhiman Basu
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