Abstract
This paper introduces a new method to analyze the response of the multiple supported nonlinear systems. There are many papers about the response analysis of a system having nonlinear properties, such as friction or elastic-plastic characteristic. However, most of them are about the one input system because it seems difficult to apply more than one input. Although a simple method for estimating the multi-input response analysis for linear systems is also proposed, they cannot use for nonlinear systems. In recent years, the importance of seismic design considering both nonlinear and multi-input problems has been focused. Therefore, we propose a method to estimate the maximum response of multi-input system with elastic-plastic characteristic for rationalization and high evaluation of seismic design of piping systems in the present study. The estimated results are compared with simulated value by numerical time history and showed the effectiveness of our method.
