目前,单层工业厂房的单肢管柱一般为大偏心受压构件。对于这类单肢管柱通常是按平面排架计算内力,然后按规范环形截面计算公式验算截面强度,并沿截面均匀分布配筋。这个公式的前提是假定所有纵向钢筋均匀受力,到破坏时,沿环形截面均匀分布的钢筋都到达流限。实际上,除了中心拉、压柱以外,所有钢筋不可能均匀受力,更不 At present, single-limb columns in single-story industrial buildings are generally large eccentric compression members. For such single-limb columns, the internal forces are usually calculated according to the plane trusses, and then the strength of the sections is calculated according to the formula for the calculation of the annular section, and the reinforcement is evenly distributed along the section. The premise of this formula is to assume that all longitudinal steel bars are subjected to uniform forces, and by the time of failure, the steel bars uniformly distributed along the circular section reach the flow limit. In fact, with the exception of center pulls and press columns, all steel bars cannot be evenly stressed, not to mention