（同济大学建筑设计研究院（集团）有限公司，上海 200092）

［摘要］与传统框架相比斜柱框架在受力性能上存在较大差异，斜柱框架在结构自重作用下会产生较大的水平和竖向变形。借助一典型工程案例多方位、多角度对斜柱框架进行了研究分析，总结了一套分析斜柱框架的计算方法。该方法主要包括：斜柱受力特点对比分析、典型单榀框架受力分析、与斜柱相连的框架梁受力分析、楼板应力分析、穿层斜柱的整体屈曲分析、节点有限元分析和防连续倒塌分析等。采用该方法对本工程进行计算分析，结果表明：与斜柱相连的框架梁满足设计要求，节点设计满足强节点的设计原则，柱截面承载能力能满足防连续倒塌的设计要求。同时，应适当加大斜柱区域框架结构体系的整体刚度，应在适当位置设置中心支撑，增强斜柱框架的抗侧刚度；在楼板薄弱位置应采取适当的加强措施，保证水平力的有效传递。

［关键词］斜柱框架； 楼板应力分析； 屈曲分析； 节点有限元分析； 防连续倒塌分析

中图分类号：TU318文献标识码：A文章编号：1002-848X(2019)08-0064-08

Design method of inclined column frame structure in an art museum

Yu Jinxin

(Tongji Architectural Design (Group) Co., Ltd., Shanghai 200092, China)

Abstract:Compared with the traditional frame structure, the inclined column frame has great difference in the mechanical performance, and the inclined column frame produces large horizontal and vertical deformations under the action of structural self-weight. A typical engineering case was used to analyze the inclined column frame from multiple perspectives, and a set of calculation method for analyzing the inclined column frame was summarized. The method mainly included comparative analysis of mechanical characteristics of inclined column, mechanical analysis of the typical single piece of frame, mechanical analysis of frame beams connected to inclined columns, the stress analysis of the floor, the integral buckling analysis of the inclined skip-floor column, node finite element analysis, anti-progressive collapse analysis and so on. The project was calculated and analyzed by this method. The results show that the frame beam connected with the inclined column meets the design requirements, and the node design satisfies the design principle of the strong node. The load capacity of the column section can meet the design requirements of anti-progressive collapse requiremnets. At the same time, the overall stiffness of frame structural system in inclined column area should be increased appropriately, and the central support should be set in the appropriate position to enhance the lateral stiffness of inclined column frame; appropriate strengthening measures should be taken in the weak position of floor to ensure the effective transmission of horizontal forces.

Keywords:inclined column frame; stress analysis of floor; buckling analysis; node finite element analysis; anti-progressive collapse analysis

作者简介：余金鑫，硕士，工程师，一级注册结构工程师，英国皇家特许结构工程师，Email：yujinxin313@163.com。