[Case Report] Vibration Analysis SNAP

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last updated：Jul 30, 2012

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Detailed analysis of seismic performance evaluation. The proven capabilities of SNAP through vibration control design!

We would like to introduce a case study of the vibration analysis tool "SNAP." Yamashita Design, Inc. is one of Japan's leading comprehensive design firms, responsible for the Kasumigaseki Building, the first super high-rise building in Japan. Recently, proposals emphasizing structural planning have become essential for securing contracts for the design of government and private facilities, with seismic isolation design becoming standard in hospital architecture and vibration control structures in office buildings. The need for response analysis using three-dimensional models has been increasing to analyze complex structures. Due to the impact of legal revisions and the need to adapt to advancements in analysis technology, maintaining and managing in-house programs has become challenging, leading to the decision to adopt commercial programs, with "SNAP" being one of the options. Since there are currently few case studies of its adoption, when creating models in SNAP, we verify input data and calculation results while working, and we have reached out to support with questions whenever doubts arise. The support staff are well-versed in the program's details, providing prompt and courteous responses. For more details, please contact us or refer to the catalog.

Related Link - http://www.kozo.co.jp/program/kozo/snap/index.html

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【Introduction】 ○ The need for response analysis using 3D models has increased in order to analyze complex structures. ○ Due to the impact of legal revisions and the need to respond to improvements in analysis technology, it has become difficult to maintain and manage our in-house programs. → As a result, we decided to introduce commercial programs, and one of the options was to implement SNAP. ○ When creating models with SNAP, we conducted the work while verifying input data and calculation results. ○ Whenever there were questions, we reached out to support. → The support staff are well-versed in the program's details, allowing us to receive prompt and thorough responses. 【Example of Seismic Design Using SNAP】 ○ A steel structure with 2 basement levels and 17 above-ground floors. ○ Starting from SNAP Ver.5, input for floors has also become possible. → Automatic calculations for node mass, initial loads, rigid regions, and critical section positions are now feasible. ○ A member model is adopted. → Once the model is created, parametric studies can be easily conducted. ○ The response plasticity ratio for each member is also displayed. → This allows us to confirm safety not only at the layer level but also at the member level. ● For more details, please contact us or refer to the catalog.