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Open AccessArticle

Hysteretic Energy Demands in Multi-Degree-of-Freedom Systems Subjected to Earthquakes

Depart of Civil Engineering and Energy Technology, Oslo Metropolitan University, 0167 Oslo, Norway
Buildings 2020, 10(12), 220; https://doi.org/10.3390/buildings10120220
Received: 27 October 2020 / Revised: 20 November 2020 / Accepted: 26 November 2020 / Published: 28 November 2020
(This article belongs to the Special Issue Structural Analysis for Earthquake-Resistant Design of Buildings)
Reliable estimation of energy demands imposed on a structure by a design ground motion is a key component of energy-based design. Although several studies have been conducted to quantify the energy demands in single-degree-of-freedoms systems, few have focused on multi-degree-of-freedom systems. This study aims to build on the knowledge from previous studies on multi-degree-of-freedom systems with special focus on the distribution of hysteretic energy demands among the components of the structure. Nonlinear response history analyses conducted under ground motion sets representing three different hazard levels show that the total input and hysteretic energy demands of multi-degree-of-freedom systems can be accurately estimated from equivalent single-degree-of-freedom systems for low- and medium-rise buildings. The distribution of hysteretic energy demands over the height of the multistory structures has been shown to vary significantly from ground motion to ground motion. Analyses results also show that the relative strength of adjoining beams and columns has a significant influence on the hysteretic energy demand distribution. On the other hand, the energy distribution is relatively insensitive to the damping model used in the analysis of the multi-degree-of-freedom system. View Full-Text
Keywords: energy-based design; hysteretic energy; damping; energy demand distribution energy-based design; hysteretic energy; damping; energy demand distribution
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MDPI and ACS Style

Erduran, E. Hysteretic Energy Demands in Multi-Degree-of-Freedom Systems Subjected to Earthquakes. Buildings 2020, 10, 220. https://doi.org/10.3390/buildings10120220

AMA Style

Erduran E. Hysteretic Energy Demands in Multi-Degree-of-Freedom Systems Subjected to Earthquakes. Buildings. 2020; 10(12):220. https://doi.org/10.3390/buildings10120220

Chicago/Turabian Style

Erduran, Emrah. 2020. "Hysteretic Energy Demands in Multi-Degree-of-Freedom Systems Subjected to Earthquakes" Buildings 10, no. 12: 220. https://doi.org/10.3390/buildings10120220

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