应力交替 meaning in Chinese

stress alternation

For three - short - pier shear wall under vertical loads , the results remain the same , and transfer beam at this moment will work with the middle pier , constituting a t - shape beam to sustain the moment and axial tensions together . 4 . under the horizontal loads , the inner stress distribution in the frame supported short - pier shear wall shows similarities with that of the short - pier shear wall underneath the fastened supports
4 、水平荷载作用下,框支短肢剪力墙墙肢内的应力分布形式接近于下部固支的短肢剪力墙的应力分布;转换梁承受上部墙肢传递的拉力、剪力和弯矩,当短肢剪力墙墙肢数量较多时,转换梁上、下边缘拉、压应力交替出现,剪应力的最大值处于洞口下方的转换梁体内。