矩形梁截面配筋计算

（1）a.梁弯矩配筋计算（单筋）黄色部分需要手工输入BHMFcFy保护层厚度as25050018811.936065αs§Asσ1min配筋率σ1当σ1min小于0.2%时取σ1min=0.2%0.3