企画セッション（応用力学の実務への展開）①

[11011-15-01] Shape design of bridge collapse protection bracket by applying topology optimization techniques (Proceedings of Symposium on Applied Mechanics)

*Yukio Kitada¹, Ichiro Dote¹, Takahiro Kurokawa¹, Toshio Matsumura², Masaaki Nakamura², Junji Kato³ (1. HINODE Holdings Co.,Ltd., 2. The Takigami Steel Construction Co.,Ltd., 3. Nagoya University)

Keywords:topology optimization, optimal design, bridge collapse protection bracket, cast iron

A topology optimization method was used to develop a lightweight and rigid cast metal bracket that does not require welded joints for use in bridge fall prevention structures. To evaluate the performance of this shape as a combined product, rather than as a stand-alone product, an assembly analysis was conducted under actual usage conditions to evaluate the performance in a more realistic environment. The new shape is approximately 30% lighter than the current shape, and its performance is equivalent or better.