問答題已知一矩形截面偏心受壓柱的截面尺寸b×h=300mm×400mm,柱的計(jì)算長(zhǎng)度l0=3.0m,as=a’s=35mm,混凝土強(qiáng)度等為C35,fc = 16.7N/mm2,用HRB400級(jí)鋼筋配筋,fy=f’y=360N/mm2,軸心壓力設(shè)計(jì)值N = 400 KN,彎矩設(shè)計(jì)值M = 235.2KN·m,對(duì)稱配筋,試計(jì)算As=A’s=?

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