Abstract
Numerous recent studies have assessed the effect of P-Delta on the structures. This paper investigates the effect of P-Delta in seismic response of structures with different heights. For indicating the effect of P-Delta, nonlinear static analysis (pushover analysis) and nonlinear dynamic analysis (Time history analysis) were conducted by using finite element software. The results showing that the P-Delta has a significant impact on the structural behavior mainly on the peak amplitude of building when the height of the structures increased. In addition, comparison has been made between concrete and steel structure.
Highlights
One of the major parameters in tall building analysis is the structural height
Peak amplitude was a reliable indicator to obtain the effect of P-Delta
The study indicates that steel structures are more sensitive towards the height than concrete structures
Summary
One of the major parameters in tall building analysis is the structural height. As the height of building increases, the structure requires more attention to be given. Several studies indicated that the structural height has a significant effect on P-Delta value. The studies showed that P-Delta effect on low and medium column height is lesser than slender columns [1]. Gaiotti and Smith, (1989) proposed a method to analyze the effect of P-Delta in tall buildings. It has been shown that computing P-delta is crucial. For low structural stiffness and tall buildings [2]. It was found that ignoring the effect of P-Delta leads to a loss of 16%
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