预应力砼超静定结构次弯矩的简捷计算
杨建明,吕志涛
Simple and Direct Method of Calculation of Secondary Moment in Statically Indeterminate Prestressed Concrete Structures
Yang Jianming, Lü Zhitao ( Southeast University )
建筑结构学报 . 1989, (03): 23 -31 .