论文部分内容阅读
按破损阶段计算矩形截面偏心受压构件,根据试验得出,当构件受力破坏,混凝土受压区高度 x≤0.55h_0,相应混凝土应力达到 R_ω值,则属于大偏心受压;当 x>0.55h_0时,则属于小偏心受压。然而在偏心受压构件计算时,构件断面尺寸,根据实践经验已先拟定,钢筋面积则需待求出,由于钢筋面积待求,因此 x 值很难求得,所以判别偏心受压构件是属于大偏心或小偏心受压,则比较麻烦。一、按偏心距大小判别偏心受压构件的方法
According to the calculation of the damage stage, the eccentric section of the rectangular section is calculated according to the test. When the failure of the component is affected, the height of the compression zone of the concrete is x≤0.55h_0, and the corresponding concrete stress reaches the R_ω value, then it belongs to large eccentric pressure; when x>0.55 When h_0, it belongs to a small eccentric pressure. However, in the calculation of eccentric compressive members, the sectional dimension of the components has been drawn up based on practical experience, and the area of the steel bars needs to be determined. Because the area of the steel bars is to be determined, it is difficult to obtain the x value, so the identification of the eccentric compressive members belongs to Large or small eccentric pressure, it is more troublesome. First, according to the size of the eccentricity to determine the eccentric pressure member method