Investigation of progrssive collapse in steel moment and bracing frames due to support settlement

Abdizadeh kalkhoran, Ebrahim (2016) Investigation of progrssive collapse in steel moment and bracing frames due to support settlement. Masters thesis, University of Mohaghegh Ardabili.

Text (بررسی خرابی پیش رونده قاب های خمشی و مهاربندی تحت اثر نشست تکیه گاهی) Ebrahim Abdizadeh kalkhoran.pdf Download (1MB)

Abstract

The structural progressive collapse were performed due to several damages at structure elements and could be speared to undamaged elements. The damages may be also continued at the whole of or wide part of structure.In recent years, many codes researches have inestigated the behavior of structures againts progressive collapse and proposed methodes to evaluates the structural responses. One of the methodes for estimation of structural response is alternative load path method using liner static, non liner static and non liner dynamic analysis. Non liner dynamic analysis is used to achieve more accurate responses. The effect of base settlements at progressive collapse of building type structures a are investigated at this thesis. The building is designed according to Iranian codes, seismic standard No. 2800, Iranian National Building Code– part 10. Dynamic time history analysis using SAP2000 software is performed for special steel moment frame and special constrained braced frames. The results are shown that the SSMs have more resistant than SCBFs due to one, tow and third times of allowable symmetric and unsymmetrical settlement.

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