INNOVATIVE DESIGN OF VIBRATION SENSITIVE BUILDINGS
Worldwide demand for smaller, faster and higher resolution products continues to fuel the development of precision instruments and complex manufacturing processes which, in turn, necessitate very stringent vibration specification for production and research buildings. In the semiconductor and precision engineering industry, allowable vibration specification for structural floors is typically defined in the order of micrometers per second. Hence, structural design of these micro-vibration sensitive poses a big challenge especially in cities or near highways. In this keynote, an innovative strategy of isolation-and-shield is presented to mitigate vibrations from multiple sources such as traffic, wind and machineries. The strategy has proven to be effective and robust in about eighteen actual vibration sensitive buildings in Singapore, Malaysia and China. Field measurements were conducted for ground motion and building response in many of these industrial projects, which provided important validation data. Practical guideline on the design of the floor system against human footfall in terms of a simple stiffness-frequency index is proposed. The index has been established based on finite element analysis and correlated with field verification measurements.
C.G.Koh D.K.H.Chua S.L Lee
Department of Civil and Environmental Engineering, National University of Singapore,Singapore 117576,Singapore
国际会议
厦门
英文
54-61
2011-10-28（万方平台首次上网日期，不代表论文的发表时间）