气候变化领域集成服务门户(CCPortal): Inelastic displacement demand of RC buildings subjected to earthquakes generated by intermediate-depth Vrancea seismic source

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DOI	10.1007/s11069-021-04930-3
	Inelastic displacement demand of RC buildings subjected to earthquakes generated by intermediate-depth Vrancea seismic source
	Olteanu P.; Vacareanu R.
发表日期	2021
ISSN	0921030X
英文摘要	Evaluating inelastic displacement demand of structures exposed to seismic hazard is required for the design of new buildings as well as for seismic risk assessment of existing structures. Most of the buildings are designed to withstand strong earthquakes by responding in the nonlinear range. Having special parts of the structure designed to develop a stable hysteretic behaviour allows the structure to deform in order to accommodate the displacement demand imposed by strong ground motions. This paper is centred on finding a correspondence between the maximum elastic and inelastic displacement responses of the single degree of freedom (SDOF) systems subjected to earthquakes generated by Vrancea seismic source. Vrancea intermediate-depth earthquakes are responsible for the seismic hazard throughout Romanian territory. They have distinctive features, such as large displacement demand and large predominant periods, which makes Romania a special seismic environment. Using a database of Romanian and Japanese strong ground motions generated by intermediate-depth earthquakes and performing nonlinear dynamic analysis on the SDOF oscillators following the Takeda model, this study estimates the inelastic to elastic displacement ratio of reinforced concrete systems. Soil conditions, epicentral distance and magnitude influence on inelastic response is analysed using constant ductility response spectra. The main findings of the study are: the local increase of the inelastic to elastic displacement ratio for type C soil (Eurocode 8 classification) for large magnitude earthquakes and the significant effect of soil conditions on the inelastic response of the SDOF systems. The inelastic amplification was evaluated using a functional form depending on system ductility, soil conditions and earthquake magnitude. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.
关键词	Coefficient’s method Displacement ductility Displacement-based design Inelastic displacement spectra Intermediate-depth Vrancea
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206472
作者单位	Department of Reinforced Concrete Structures, Technical University of Civil Engineering Bucharest, Bucureşti, 020396, Romania
推荐引用方式 GB/T 7714	Olteanu P.,Vacareanu R.. Inelastic displacement demand of RC buildings subjected to earthquakes generated by intermediate-depth Vrancea seismic source[J],2021.
APA	Olteanu P.,&Vacareanu R..(2021).Inelastic displacement demand of RC buildings subjected to earthquakes generated by intermediate-depth Vrancea seismic source.Natural Hazards.
MLA	Olteanu P.,et al."Inelastic displacement demand of RC buildings subjected to earthquakes generated by intermediate-depth Vrancea seismic source".Natural Hazards (2021).