The need and state-of-the-art tools for rapid advances in global vibration serviceability research

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• Prof. Alex Pavic, University of Exeter
• Wednesday 26 August 2020, 15:00-16:00
• Zoom (email structures-admin@eng.cam.ac.uk for link).

If you have a question about this talk, please contact Gabriel Hattori.

In the 21st century vibration serviceability replaced strength as a governing design criterion for slender and lightweight structures, such as long open plan lightweight building floors or tall buildings. In 2015 IStructE conducted a survey of structural engineering practitioners about their experience with designing structures to have satisfactory vibration serviceability. This was the first and the only international survey of this kind ever conducted. Over 100 responses were received from around the world. Almost a quarter of respondents had experienced problems with human comfort in designs which were code compliant and over 40% stated that they had experienced limitations in design code guidance/requirements. These and responses to the other 8 questions, as well as free text comments, are analysed and presented, with some recommendations as to the way forward for the profession considering the outcomes of this survey. Key areas of concern identified by the survey are: (1) generally low level of competence of structural engineers when dealing with vibration serviceability; (2) poor code and design guideline provision to cope with a plethora of vibration serviceability scenarios in modern slender and lightweight structures; (3) aspects of client-engineer relationship preventing full engagement of the client in specifying vibration serviceability requirements; and (4) unreliable or unworkable vibration limits proposed in the standards. This talk will therefore present examples of the acute need and new state-of-the-art tools for state-of-the-art-vibration serviceability research in the UK and internationally.

This talk is part of the Engineering Department Structures Research Seminars series.

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