钢筋混凝土框架边梁的扭矩分析

Torsional Moment Analysis on Edge Beam of Reinforced Concrete Frame

考虑次梁的约束作用,推导了框架边梁的扭矩计算公式,分析了影响扭矩大小的主要因素.分析表明带悬臂的框架边梁考虑次梁约束能显著减少边梁扭矩,对普通框架边梁不考虑次梁约束是不安全的.

Considering the restraining moment of the secondary beam, the paper deduces formulas for calculating torsional moment of edge beam of frame. Primary factors of affecting torsional moment are analyzed. Analysis indicates that it decreases the torsional moment of edge beam of frame, which attaches cantilevering beam, remarkably to consider the restrain of the secondary beam. It is not safe that the restrain moment is not considered for the edge beam of the common frame.