摘要
研究分析了在半无限粘弹性Winkler地基上的钢筋混凝土梁受低速刚性体撞击的塑性动力响应问题。认为低速撞击下梁的计算必须考虑撞击时局部损伤的影响,研究梁结构整体破坏,从而建立了局部损伤和整体变形的关系式,推导出了钢筋混凝土梁在低速中心撞击时弹塑性阶段撞击力和撞击处的横向位移的计算公式。
The dynamic plastic response of a simply supported RC beam on a semi-infinite viscoelastic Winkler foundation under low velocity impact is investigated. In calculating RC beam subjected to low velocity impact, the effect of local damage must be taken into account when the integral bending deformation is analyzed. The relationship between local damage and integral bending deformation is established; and the calculating formulae for the elastoplastic impact force and dynamic transverse deflection of the beam ...
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2005年第S1期287-291,共5页
Rock and Soil Mechanics
关键词
钢筋混凝土梁
撞击
局部损伤
动力响应
粘弹性
reinforced concrete beam
impact
local damage
dynamic response
viscoelasticity
