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分析了现采用的双向受弯型钢梁截面设计方法的不足，通过研究双向受弯型钢梁的受力，提出了一种简单实用的确定双向受弯型钢梁截面设计参数的方法，并将普通工字钢和普通槽钢的梁截面设计参数列表给出，供设计时直接查用，经验证所确定的截面设计参数满足设计要求．
The deficiencies of the cross-section design method of the bi-directional bending steel girder are analyzed. By studying the stress of the bi-directional bending steel girder, a simple and practical method to determine the design parameters of the bi-section flexural steel girder section is proposed. The beam section design parameters of ordinary I-beam and common channel steel are given in the list, which can be directly used for the design. The cross-section design parameters determined by the verification meet the design requirements.