圆形截面钢筋混凝土结构受弯配筋实用计算和应用研究

圆形截面钢筋混凝土受弯构件如排桩在基坑工程中常作为围护结构，目前规范给出的配筋计算公式涉及求解超越方程，无法直接求得计算结果。对规范计算公式转换，运用常用的办公软件Excel的单变量求解、规划求解和VBA编程功能编制圆形截面钢筋混凝土结构受弯配筋的计算表格，结合实例进行了分析验证，并应用至基坑工程项目中，获得较满意效果。

Study on Application and Practical Calculation of Flexural Reinforcement of Reinforced Concrete Structure with Circular Section

In excavation engineering, flexural members of reinforced concrete with circular section such as soldier piles can be applied as enclosure structures. However, the formulas for calculating reinforcement given in the current codes involve the solution of transcendental equations, hence, it is impossible to calculate directly. Based on conversion of calculating formulas, the spreadsheets of flexural reinforcement calculation of reinforced concrete structure with circular section can be constructed by single goal seeking function, programming solving function and VBA programming in Excel. Lastly, some numeral cases are proposed to prove the validity and feasibility, it is applied to the excavation engineering project and has better effect in practice.