非对称截面钢骨混凝土柱正截面承载力简化计算  

Simplified calculation on normal section bearing capacity of steel-reinforced concrete columns with eccentrical sections

作　　者：曲哲[1] 王鹏[1] 叶列平[2] 崔鸿超 

机构地区：[1]中国地震局工程力学研究所,中国地震局地震工程与工程振动重点实验室,哈尔滨150080 [2]清华大学土木工程系,北京100084 [3]上海中巍结构设计事务所有限公司,上海200135

出　　处：《建筑结构》2014年第7期99-104,共6页Building Structure

基　　金：中国地震局工程力学研究所基本科研业务费专项(2013B13);国家自然科学基金青年科学基金项目(51308514)

摘　　要：在《钢骨混凝土结构设计规程》(YB 9082—97)中,对于配置不对称钢骨的钢骨混凝土柱,其正截面承载力计算采用了偏于安全地置换为对称钢骨截面的方法。这种方法可能过分偏于保守,不适合于截面不对称性较大的钢骨混凝土柱的设计。基于一般叠加方法,给出了计算配置不对称钢骨的钢骨混凝土柱正截面压弯承载力的改进的简单叠加方法,计算结果与理论结果基本吻合。本方法已被新版《钢骨混凝土结构技术规程》(YB 9082—2006)所采纳。The provisions in the Technical Specification of Steel-Reinforced Concrete Structures （YB 9082--97 ）suggest any eccentric steel reinforcement in the steel-reinforced concrete （SRC） cross section should be replaced by equivalent symmetric ones in security when calculating its normal section bearing capacity. Such replacement method can be over- conservative estimates and not be suitable for design of SRC columns with larger eccentrical sections. An improved simplified calculation method for the axial and flexural strength of eccentric steel reinforced concrete column was proposed based on the sectional superposition method. The validity of the method was demonstrated by comparing the results with those given by rigorous sectional analysis. The method was adopted by the new revised Technical Specification of Steel- Reinforced Concrete Structures（ YB 9082--2006）.

关 键 词：钢骨混凝土柱 正截面承载力 叠加方法 

分 类 号：TU375.3[建筑科学—结构工程]