Volume 20, Issue 2 (4-2001)
2001, 20(2): 55-75 |
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F. Nateghi-A and N.A. Hosseinzadeh. Siesmic Assessment og Ductility and Strength Capacities of Low-Rise R. C. Buildings. Journal of Advanced Materials in Engineering (Esteghlal) 2001; 20 (2) :55-75
URL: http://jame.iut.ac.ir/article-1-227-en.html
URL: http://jame.iut.ac.ir/article-1-227-en.html
Abstract: (6059 Views)
This paper presents a methodology for the assessment of ductility and strength capacities in low-rise buildings. This method utilizes the characteristics of force-displacement for the lowest story level or considers the weakest story in any given low-rise building for its primary analysis. Calculations are based on two levels of earthquake motions, namely strong earthquakes (PGA=0.3 g), and very strong earthquakes (PGA=0.45). Failure mechanism for the structure is established based on three criteria which are: a) bending mode, b) shear mode, and c) shear-bending mode. Evaluation is then performed using a five step procedure starting with a: modeling the building, b) developing the non-linear properties of the model, c) strength calculations, d) ductility calculations, and finally, e) assessing the safety of the building under consideration. All these evaluations are performed based on a matrix format, which simplifies the whole procedure. Developed equations and step-by-step procedure are presented and described in this paper Satisfactory results are obtained from the use of the method developed.
Keywords: Strength, Ductility, Failure mechanism, Low-Rise R. C. Buildings
