[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 Corporation is one of Japan's leading comprehensive design firms, known for handling 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, it became challenging to maintain their in-house programs, leading to the decision to adopt commercial software, with "SNAP" being one of the options. Since there are currently few case studies using SNAP, when creating models, we verify input data and calculation results while working, and we have reached out to support with questions whenever uncertainties arise. The support staff are well-versed in the program's details, providing prompt and thorough 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 Background】 ○ The need for response analysis using three-dimensional models has increased 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 work while verifying input data and calculation results. ○ Whenever there were questions, we contacted support. → Since the support staff are well-versed in the program's details, we received prompt and thorough responses. 【Example of Seismic Design Using SNAP】 ○ Steel structure with 2 basement levels and 17 above-ground floors. ○ From SNAP Ver.5, input for floors has also become possible. → Automatic calculation of node mass, initial loads, rigid regions, and critical section positions is now possible. ○ A member model is adopted. → Once the model is created, parametric studies can be easily conducted. ○ Response plasticity rates for each member are also displayed. → This allows us to confirm not only the safety at the layer level but also the safety at the member level. ● For more details, please contact us or refer to the catalog.