钢筋混凝土双向偏心受压矩形截面构件正截面承载力简便算法
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(中国儿童中心， 北京 100035)［摘要］借鉴澳大利亚《混凝土结构设计规范》(AS 3600-2001)和美国《混凝土结构设计规范》(ACI 318-05)，针对钢筋混凝土双向偏心受压矩形截面构件，根据中国《混凝土结构设计规范》(GB 50010—2010)附录E算法拟合得到符合中国混凝土结构设计的极限弯矩曲线方程，比较结果显示，提出的极限弯矩曲线方程与中国《混凝土结构设计规范》(GB 50010—2010)规定的附录E算法和Nikitin算法计算结果比较接近且偏于安全，可以作为一种简便算法供工程师设计参考使用。［关键词］钢筋混凝土; 双向偏心受压; 正截面承载力; 算法中图分类号：TU375文献标识码：A文章编号：1002-848X(2013)23-0087-05Simplified calculating method for normal section load-bearing capacity of reinforced concrete rectangular cross-section component under biaxial bending and compressionMa Zhigang(China National Children’s Center, Beijing 100035, China)Abstract: Referring the design methods for reinforced concrete rectangular cross-section component subjected to biaxial bending and compression in codes of AS 3600-2001 & ACI 318-05, an ultimate bending moment curve equation was obtained according to the calculating method of appendix E in code GB 50010—2010. Comparing different results, it is indicated that the results of obtained ultimate bending moment curve equation are close to the ones from calculating methods of appendix E in code GB 50010—2010 and of Nikitin formula. Furthermore, the obtained results are conservative. Obtained simplified calculating method can be used as a reference analysis method for civil engineers.Keywords: reinforced concrete; biaxial bending and compression; normal section load-bearing capacity; calculating method作者简介：麻志刚，硕士，工程师, Email: macnet@ce.buaa.edu.cn。参考文献［1］GB 50010—2010 混凝土结构设计规范［S］. 北京：中国建筑工业出版社，2011.［2］AS 3600-2001 Australian standardsTM concrete structures［S］. Standards Australia International Ltd GPO Box 5420, Sydney, NSW 2001,Australia, 2001.［3］ACI 318-05 Building code requirements for structural concrete［S］. American Concrete Institute Committee 318, 2005.［4］卢伟煌. 钢筋混凝土双向偏心受压矩形截面直接设计方法［J］. 建筑结构，2003，33(12):36-38.
