...幅: Amplitude of vibration 初始相位角: initial phase angle 无阻尼自由振动是简谐振动 28 28 结构的自振周期(natural period) ) sin( ) ( a t a t y ) 2 ( t y ) ) 2 ( sin( a t a ) 2 sin( a t a ...
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风振计算应按随机振动理论进行，结构的自振周期应按结构动力学计算。
Wind is it it calculates to be should according to shake theory go on, shake cycle should calculate according to structure dynamics structure at random to shake.
现行规范中已存在许多经验公式去描述非抗震设计的钢筋混凝土结构的自振周期与建筑高度的关系。
Some empirical relationships for non-seismic design RC structures are now used in several design codes to relate the fundamental period to the height of a building.
本文研究了修改桥梁结构设计参数，使其自振周期和振型满足预先给定设计要求的动力特性修改过问题，提出了一种求解方法。
This paper presents a method for modifying the designing structural parameters of a bridge structure so that the bridge structure will freely vibrates at prescribed frequencies and modes.
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