摘要
本文研究了两种形式的18米跨度R,C,屋架和双跨四层刚架的前五个振动周期及相应的振型曲线,以及鞭梢效应对刚架的影响.
This paper presents a study of the first five vibration periodsof two types of R.C.roof trusses with a span-length of 18 m and two 4 stories 2 bay R.C.frames together with their curves of the modes of vibration,as well as the whiplsh effect on one of the frames。
关键词
平面结构
振动周期
鞭梢效应
vibration periods
whiplash effect
planar structures