Building on Springs: Towards a Performance-Based Design Approach for Controlling Groundborne Vibration

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• Dr James Talbot - Structures Group
• Friday 30 October 2015, 15:00-16:00
• Cambridge University Engineering Department, LR5.

If you have a question about this talk, please contact Lorna Everett.

Base-isolated buildings, founded on steel springs or elastomeric bearings, have been employed since the 1960s in locations susceptible to groundborne vibration. Examples exist across a wide range of buildings, from residential to commercial, and include specialist buildings such as concert halls and hospitals. In all cases, the objective is to reduce internal levels of perceptible vibration and re-radiated noise, with the most common sources of concern being nearby surface or underground railways. Despite the extensive use of base isolation, there is a significant lack of guidance on all aspects of design, from the selection of bearing type and their location within a building, to questions such as how performance should be evaluated, and the most fundamental question of all: is isolation necessary? This talk reviews current practice in base-isolation design, and highlights some of the challenges and future research efforts in moving towards a performance-based design approach for controlling groundborne vibration.

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

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