（1 兰州大学土木工程与力学学院，兰州 730000； 2 甘肃省建设科技专家委员会，兰州 730000）

［摘要］对某模型工程在底部侧边不同楼层局部开洞，采用SATWE程序分析了开洞后形成的单边梁、跨层柱的内力和配筋的变化。计算结果表明，单边梁不是一般的受弯构件，而是有扭矩存在的拉弯构件，故除按计算结果配筋外，应符合拉弯构件的构造要求。跨层柱由于计算高度的增大，柱纵筋将增大，尤其是跨越层数较多的跨层柱，柱纵筋增大幅度很大。文中给出了单边梁和跨层柱的设计建议。

［关键词］楼板局部开洞；单边梁；跨层柱

Design of beams without slab restricted on both sides and columns beyond several floors for the floor side partial opening of tall building

Zhang Jingshu¹, Duan Huijing¹, Mo Yong², Wang Erchang², Zhou Li¹，Ma Zhimin¹(1 College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China;2 Gansu Province Construction  Science and Technology Committee of Experts, Lanzhou 730000, China)

Abstract:For a model building on floor side partial opening of different position on lower floor, using SAEWE program,it analyzes the change of internal force and reinforcement on beams without slab restricted on both sides and columns beyond several floors. According to calculating conclusion, the beam without slab restricted on both sides isn′t common bending member,it is a tension and bending member existing torque,it should be reinforced according to calculating conclusion,and should meet with  the detail of  tension and bending member. Due to increasing calculating height of column beyond several floors, its longitudinal bar will be increased, especially on column beyond more floors.It gives design suggestion.

Keywords:floor partial opening；beams without slab restricted on both sides；columns beyond several floors

*西部灾害与环境力学教育部重点实验室（兰州大学）2007年开放基金（编号2），甘肃省建设厅2007年度科技项目（编号：JK2007-4）。

作者简介：张敬书，副教授，一级注册结构工程师，Email：zjs66cn@yahoo.com.cn。

参考文献

［1］陈岱林，李云贵，魏文郎.多层及高层结构CAD软件高级应用［M］.北京：中国建筑工业出版社，2004.

［2］GB50003—2001砌体结构设计规范［S］.