不同柱支承模型下矩形板的静力和自由振动分析  

Static and Free Vibration Analysis of Plate on Column Supports by Different Models

作　　者：黄明挥[1] 赵美余[2] 

机构地区：[1]南昌大学土木工程学院,江西南昌330029 [2]南昌有色冶金设计研究院,江西南昌330002

出　　处：《南昌大学学报（工科版）》2001年第3期18-25,共8页Journal of Nanchang University(Engineering & Technology)

摘　　要：采用有限条结合弹簧体系的方法分析了薄板在不同柱支承模型支承下的静力和自由振动问题 ,用弹簧体系有效地模拟各种弹性柱支承 ,如有转角限制或无转角限制的弹性与刚性点支承 ,以及考虑柱的支承面积的局部面支承 通过数值算例讨论了不同支承模型对结构的影响 结果表明 。A procedure incorporating the finite strip method together with spring systems is proposed to analyze the static response and free vibration of plate on column supports.The column supports are modeled as point elastic supports with or without rotation stiffness,rigid point supports and local distributed elastic supports by the spring systems.The effects of support models, column sections are discussed.Numerical examples show that in the static analysis,the support models and sections have some effects on the deflection but few to the bending moments.And in the free vibration,the support models and sections have significant effects on the natural frequencies and model shapes.

关 键 词：矩形板 柱支承 静力分析 自由振动 有限条法 弹簧 结构模型 工程结构 

分 类 号：TU339[建筑科学—结构工程]