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Seismic Performance of Uplift-Permitted Steel Moment-Resisting Frames in Near-Fault Regions

Credit to Download: 1 | Page Numbers 13 | Abstract Views: 414
Year: 2014
COI code: ICSAU02_0517
Paper Language: English

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Authors Seismic Performance of Uplift-Permitted Steel Moment-Resisting Frames in Near-Fault Regions

  Elmira Shoushtari Rezvani - Ms.c Student, Amirkabir University of Technology, Tehran, Iran
  S. Mojtaba Alian Amiri - Ms.c Student, Semnan University, Semnan, Iran.
  Mohsen Tehranizadeh - Professor, Amirkabir University of Technology, Tehran, Iran

Abstract:

Seismic performance of steel moment-resisting frame structures is investigated considering nonlinear soil-structure interaction (SSI) effects. 10-, 15-, and 20-story planar building frames with aspect ratio of 3 are designed in accordance with current building codes. Inelastic seismic demands of the superstructure are considered using concentrated plasticity model. The raft foundation system is designed for different soil types. Beam-on-nonlinear Winkler foundation (BNWF) is used to represent dynamic impedance of the underlying soil. Two sets of pulse-like as well as no-pulse near-fault earthquakes are used as input ground motions. The results show that the reduction in drift demands due to nonlinear SSI is characterized by a more uniform distribution pattern along the height when compared to the fixed-base and linear SSI condition. It is also concluded that beneficial effects of nonlinear SSI on displacement demands is more significant in case of pulse-like ground motions and performance level of the steel moment-resisting frames can be enhanced.

Keywords:

Soil-structure interaction, Uplifting, Soil plasticity, Near-fault earthquake, Tall building

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COI code: ICSAU02_0517

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Shoushtari Rezvani, Elmira; S. Mojtaba Alian Amiri & Mohsen Tehranizadeh, 2014, Seismic Performance of Uplift-Permitted Steel Moment-Resisting Frames in Near-Fault Regions, 2nd international congress of structure, architecture and urban development, تبريز, دبيرخانه دائمي كنگره بين المللي سازه ، معماري و توسعه شهري, https://www.civilica.com/Paper-ICSAU02-ICSAU02_0517.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Shoushtari Rezvani, Elmira; S. Mojtaba Alian Amiri & Mohsen Tehranizadeh, 2014)
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Type: state university
Paper No.: 19529
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