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| 钢筋混凝土圆形截面构件截面延性系数计算 | |
| 引用本文： | 孙克俭,李凤祥,闫丽. 钢筋混凝土圆形截面构件截面延性系数计算[J]. 建筑结构, 2012, 0(2): 122-126 |
| 作者姓名： | 孙克俭 李凤祥 闫丽 |
| 作者单位： | 内蒙古久明建设工程施工图审查有限公司;内蒙古城市规划市政设计研究院有限公司;内蒙古电力科学研究院 |
| 基金项目： | 内蒙古自治区自然科学基金项目(200711020722) |
| 摘 要： | 从钢筋混凝土正截面承载能力计算时的平截面假定、不考虑混凝土抗拉强度、钢筋应力-应变关系为理想弹塑性模型的基本假定出发,建立了圆形截面上各种应力图形的函数表达式。利用曲线积分的数学方法,推导出计算钢筋混凝土圆形截面构件截面延性系数的数学公式,并给出了钢筋混凝土圆形截面在外力作用下截面应力图形形状的判别式,可供圆截面构件进行延性设计时参考。 |
| 关 键 词： | 钢筋混凝土 圆形截面 延性系数 屈服 极限 |
Calculation for the cross-section ductile coefficient of reinforced concrete round section members |
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| Sun Kejian,Li Fengxiang,Yan Li. Calculation for the cross-section ductile coefficient of reinforced concrete round section members[J]. Building Structure, 2012, 0(2): 122-126 | |
| Authors: | Sun Kejian Li Fengxiang Yan Li |
| Affiliation: | 1 Inner Mongolia Jiuming Construction Engineering Drawing Reviewing Center,Hohhot 010020,China; 2 Inner Mongolia Urban Planning & Municipal Engineering Design Research Institute,Hohhot 010070,China; 3 Inner Mongolia Electric Science & Research Institute,Hohhot 010020,China) |
| Abstract: | Based on the basic assumption that the section is plane,the tensile strength of concrete is ignored and the steel stress-strain relationship is the ideal elastic-plastic model while calculating the bearing capacity of the reinforced concrete normal section,function expressions for different stress graphs on the round section were set up.By using the mathematical method of curve integral,the mathematical formulas to calculate the cross-section ductile coefficient of reinforced concrete round section members were derived,and the discriminant of the cross-section stress graphic shape on the reinforced concrete round section under the external force were given,which can provide reference for ductile design of round section members. |
| Keywords: | reinforced concrete round section ductile coefficient yield limit |
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