（上海兴涛建筑结构设计事务所， 上海 200092）

［摘要］针对结构工程设计中遇到的实际情况，提出了圆形截面钢筋混凝土受弯构件正截面承载能力的实用计算方法。该计算方法建立了迭代计算的初值公式，避免了盲目计算，大量地减少了结构计算工作。该计算方法在圆形截面构件中采用非对称配筋，在保证安全和经济的条件下充分让结构材料钢筋和混凝土发挥作用。本文介绍了笔者1990年用此方法设计的一个支护桩工程实例。本计算方法经过实际工程实践的检验，取得了佷好的成果。

［关键词］抗弯承载能力； 受弯构件； 解析解； 支护桩； 相对误差

中图分类号： TU318.1    文献标识码： A    文章编号： 1002-848X(2015)S2-0381-05

Practical calculation method of bending capacity for reinforced concrete flexural

 member with circular section and its engineering practice

He Wei

（Shanghai Xingtao Structural Engineers Inc., Shanghai 200092, China)

Abstract： Based on practical situation of structural engineering design, practical calculation method of bending capacity for reinforced concrete flexural member with circular section was provided. The method estabishes initial value formular of trial calculation, avoids void trial calculation, largely reduces structural calculative work. The method applies steel bar unsymmetrical in reinforced concrete flexural member with circular section, makes full use of structural material steel bar and concrete under the condition of guaranteeing safe and lowing construction cost. A practical soldier pile engineering designed by writer in 1990 with this practical calculation method was introduced. The method is verified by engineering practice and obtains very good achievement .

Keywords： bending capacity； flexural member； analysis solution； soldier pile； relative error 

作者简介: 何伟，硕士，总工程师，高级工程师，一级注册结构工程师，Email: nikko@vip.163.com。