梁刚度放大系数的探讨*
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（中国建筑科学研究院上海分院，上海200023）[摘要] 结构分析中，梁刚度放大系数可采用不同的方法计算。本文针对梁刚度放大系数的不同计算方法进行比较分析，研究了梁跨、板厚、梁高度对梁刚度放大系数的影响，并分析梁刚度放大系数对结构整体指标和构件内力配筋的影响。同时分析了不同楼板刚度假定下的梁刚度放大的正确应用。[关键词] 梁刚度放大系数; 有效翼缘; 弹性板中图分类号：TU375.1 文献标识码：A 文章编号：1002-848X(2013)S1-0643-06Discussion on amplification factor for beam stiffnessZhu Wei, Huang Yiping, Qin Jingwei（Shanghai Branch, China Academy of Building Research, Shanghai 200023, China）Abstract: The stiffness amplification factor can adopt by different method in analysis of the structure. This paper analyzed and compared the different methods to calculate the amplification factor of beam stiffness, discuss the influence of beam span, plate thickness, beam height. Research the influence of the amplification factor of beam stiffness for structure, force and reinforcement for member. Meanwhile, analyzes the different influence of the assume for floor stiffness to amplification factor of beam stiffness.Keywords: amplification factor, effictive flange, elasticity plate作者简介：朱伟，教授级高工，Email:zhuwei@pkpm.com.cn。
