twist center

Calculation of torsion center position of box girder;

箱梁截面扭转中心位置的确定

Utilizing the second theory of KAUmansky the explicit formula for torsion center position calculation of box beam is derived.

采用乌曼斯基第二理论,推导了箱梁扭转中心位置计算的显式公式,应用此公式不必经过复杂的积分运算便可直接求扭转中心,并用实例验证了该公式的正确性,为箱梁内力计算提供了方便,也可供工程实际应用。

According to the structural characteristics of thin-walled box girder structure and theory of constrained torsion,which is on calculating the constrained torsion of thin walled box beams,the formula for calculating the positions of their torsion centers is presented in this paper.

基于箱形薄壁梁的实际构造情况和用于薄壁构件约束扭转计算的YMANCK第二理论,对工程结构中常用的单箱双室薄壁箱形梁截面的扭转中心位置进行了理论推导,并得到了扭转中心的显式表达式。