轻钢结构由于行走而引起的振动问题研究
Floor vibration due to walking as a serviceability concern has not been well addressed in design and construction of lightweight floors.The high strength and stiffness ofsteel provide the advantage of achieving longer floor spans.However, floors with longer span and lighter weight are likely to be susceptible to annoying vibrations induced by normal human activity such as walking.Designing a lightweight floor to control these annoying vibrations can be difficult due to lack of appropriate design guidelines.Furthermore,correcting inadequacies after construction is usually very costly.Therefore, it is imperative to evaluate the vibration performance of lightweight cold-formed steel floors in current practice and identify the framing details that will contribute to limiting the annoying vibradons.Presented in this paper is a multi-phase study on the vibration performance of coldformed steel floors performed at the University of Waterloo.Full-scale floor systems withdifferent framing details were constructed and tested in both laboratory and in situ condidons.The floor framing details that enhance the floor performance against vibrations arediscussed.The results of the tests show that cold-formed steel floor systems with appropriate design and construction details can perform well against floor vibration due to human walking.
轻钢结构 建筑结构 振动特性 现场测试
Lei Xu
Department of Civil and Environmental Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
国内会议
上海
中文
259-286
2009-11-13（万方平台首次上网日期，不代表论文的发表时间）