摘要
梁柱节点是结构受力中十分复杂的部位,不合理设计往往会导致结构破坏。本文采用有限元方法模拟节点核芯区的受力性能,指出混凝土规范中关于普通梁和深受弯构件以跨高比等于5以及适中柱和短柱以剪跨比等于2进行划分是偏于保守的。同时分析结果表明,在框架结构中,柱对结构力学性能影响大于梁的影响。
The core joint of beam and column is the most complex component of structure,the unreasonable design often leads to structure damage. Finite element method is used to verify the mechanical property of joint core of beam and column. The results manifest that the concrete code is conservative when span depth ratio between common beam and deep is equal to five and shear span ratio between moderate the column and short column. At the same time,column mechanical influence in structure system is more important than the beam one.
出处
《工程抗震与加固改造》
北大核心
2015年第2期17-21,共5页
Earthquake Resistant Engineering and Retrofitting
基金
国家自然科学基金资助项目(50978232)
河南省教育厅项目(14B560029)
关键词
梁柱节点
振型参与系数
节点核芯区振型参与度
跨高比
剪跨比
core joint of beam and column
mode participation factor
mode proportion of core joint
span depth ratio
shear span ratio
