A Study on a Load Combination Method for Multi-Supported Piping Systems : Fundamental Investigation Using Piping System with Two Inputs : Vibration, Control Engineering, Engineering for Industry

抄録

This paper is an extended study of the practical combination method of dynamic loads proposed in the previous paper, in which problems of the maximum response calculation of piping systems to multiple-support excitations were discussed. In this paper, experimental and numerical investigations are carried out in order to confirm the validity and feasibility of the proposed method. Using a simple Z-beam-shaped piping model for shaking tests, the maximum response of the piping in the fundamental mode is measured, and the combination law is applied to various correlation cases among two-vibrational loads. From the experimental results, it has been made clear that the proposed method is reasonable in comparison with other combination laws, like the square root of the sum of the squares (SRSS) method.