Investigation of Optimal Seismic Design Methodology for Piping Systems Supported by Elasto-plastic Dampers : (Part 2: Applicability for Seismic Waves with Various Frequency Characteristics)

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概要

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• In this study, the applicability of a previously developed optimal seismic design methodology, which can consider the structural integrity of not only piping systems but also elasto-plastic supporting devices, is studied for seismic waves with various frequency characteristics. This methodology employs a genetic algorithm and can search the optimal conditions such as the supporting location and the capacity and stiffness of the supporting devices. Here, a lead extrusion damper is treated as a typical elasto-plastic damper. Numerical simulations are performed using a simple piping system model. As a result, it is shown that the proposed optimal seismic design methodology is applicable to the seismic design of piping systems subjected to seismic waves with various frequency characteristics. The mechanism of optimization is also clarified.

著者

• ITO Tomohiro

  Mechanical Engineering, Graduate School of Engineering, Osaka Prefecture University

• MICHIUE Masashi

  Kawasaki Heavy Industries Ltd.

• FUJITA Katsuhisa

  Graduate School of Engineering, Osaka City University

関連論文

• Investigation of Optimal Seismic Design Methodology for Piping Systems Supported by Elasto-plastic Dampers : (Part 2: Applicability for Seismic Waves with Various Frequency Characteristics)
• Active Control of Annular Flow-induced Vibration of Axisymmetric Elastic Beam by the Local Gap Width Control
• Investigation of Optimal Seismic Design Methodology for Piping Systems Supported by Elasto-Plastic Dampers (Part 1: Evaluation Functions):(Part 1: Evaluation Functions)

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