(1 中建国际(深圳)设计顾问有限公司 深圳 518033；2 深圳大学建筑设计研究院 518060)
［提要］ RC宽扁梁转换结构介于梁式转换和板式转换之间，其布置可看作厚板在零应力区、低应力区掏空减薄构成，也可看作普通转换梁截面加宽减高构成。通过宽扁梁转换结构的一个实例，分析了宽扁梁转换结构在重力荷载及地震作用下的受力状况，结果表明，RC宽扁梁转换结构弱化了转换梁抗弯刚度，有利于改善地震作用(特别是罕遇地震)下框支柱应力集中，避免框支柱率先破坏，有利于实现强柱弱梁、强剪弱弯的抗震延性需要。RC宽扁梁转换结构减低了转换梁截面高度，有利于提高建筑使用空间，降低层高，具有明显的综合效益。
［关键词］ 宽扁梁 转换结构 抗震设计
Application of Wideflat Beam Transfer Structure in Technology Building of Shenzhen University/Gu Lei1,Fu Xueyi2,Chen Songliang2(1 China Construction (Shenzhen) Design International，Shenzhen 518033,China; 2 Architectural Design & Research Institute of Shenzhen University,Shenzhen 518060,China)
Abstract:RC wideflat beam transfer structure is between beam transfer structure and flat slab transfer structure.Wideflat beam can be regard as flat slab whittled within lower stress region or as ordinary widened and flattened beam.A case study of RC wideflat beam transfer structure is carried out, and the behavior under gravity load and earthquake action is analyzed.RC wideflat beam transfer structure weakened the rigidity of the transfer beam.Under earthquake (specially severe earthquake) action,the stress concentrate of the column which supporting transfer beam is minimized and the columns early destroying is avoided.RC wideflat beam can easily meet the ductility requirement of“strong column and weak beam” and “strong shear and weak bend”.Otherwise,RC wideflat beam reduced the transfer beams height so that the useful space is increased or the story height is shortened,the total profit is very well.
Keywords:RC wideflat beam; transfer structure; seismic design