钢筋混凝土小偏心受压构件未屈服钢筋应力公式推导  

Derivation of Stress Formula of Non-yield Steel Bars in Reinforced Concrete Members Subjected to Small Eccentric Compression

作　　者：邱鑫 高佳丰 肖红庆 Qiu Xin;Gao Jia-feng;Xiao Hong-qing

机构地区：[1]山东科技大学土木工程与建筑学院,山东青岛266590

出　　处：《建筑技术开发》2019年第5期12-14,共3页Building Technology Development

摘　　要：钢筋混凝土小偏心受压构件中,远离轴向压力一侧的钢筋处于未屈服状态。对于未屈服钢筋的应力值,包括设计规范在内的诸多混凝土结构设计原理教材给出的均为近似求解公式,并未给出精确的公式表达。借助平截面假定理论推导了小偏心受压构件未屈服钢筋应力的精确公式,结合误差分析理论将精确公式与近似公式进行了对比研究。同时深入探讨了近似公式的由来、合理性及其不足性。In the small eccentric compression member of the reinforced concrete,the reinforcing steel on the side away from the axial pressure is in an unyielded state.For the stress values of unyielded steel bars,many concrete structure design principles including design specifications are given approximate solution formulas,and no precise formula expression is given.The exact formula of the unyielding steel bar stress of the small eccentric compression members is derived by the fiat section hypothesis theory.The exact formula and the approximate formula are compared with the error analysis theory.At the same time,the origin,rationality and deficiencies of the approximation formula are discussed in depth.

关 键 词：钢筋混凝土 偏压构件 未屈服钢筋 应力公式 

分 类 号：TU375[建筑科学—结构工程]