长沙理工大学学报：自然科学版2011，Vol.8Issue(2)：35-39,50,6.
考虑钢筋约束效应的开裂混凝土梁的自由振动
Free vibrations for cracked concrete beams considering the effect of reinforced constraints
摘要
Abstract
Based on the relationship between the flexibility rate and crack stress intensity factor, the cracked concrete beam model considering the effect of reinforced constraints is established. The characteristic equation of a simple supported cracked beam is acquired. Considering reinforced constraints effect or not, the former three natural frequencies with various crack depths and positions are investigated. The numerical analysis shows that the natural frequencies of cracked concrete beam increases, compared with the case ignoring effects of reinforced constraints and the natural frequency varies with the crack depth and position.关键词
Timoshenko梁/裂纹/钢筋约束效应/固有频率Key words
Timoshenko beam/crack/effect of reinforced constraints/natrual frequency分类
力学引用本文复制引用
陈得良,王文亭,刘峰..考虑钢筋约束效应的开裂混凝土梁的自由振动[J].长沙理工大学学报：自然科学版,2011,8(2):35-39,50,6.基金项目
湖南省自然科学基金资助项目 （）
