论文部分内容阅读
一、横腹杆双肢管柱的受力状态目前对于在垂直与水平力共同作用下的双肢管柱受力状态的认识尚不一致,归纳起来,大致有如下几种看法:(1)认为受力状态与多层框架相同;(2)认为受力状态与单层框架相同;(3)认为一肢偏心受压,另一肢偏心受压(或受拉)。为了弄清楚双肢柱的受力状态,我们在试验时紧靠柱底的最危险截面处量测了混凝土的变形,变形沿截面高度的分布绘在图1与图2中。图下面写出了计算荷载和标准荷载值。从图中可以看出,在计算荷载作用下,横腹杆双肢管柱的內肢属小偏心受压,外肢是属偏心受拉。还可以看出,混凝土的变形(和应
First, the transverse force of limbs double limbs column At present, the horizontal and vertical forces under the common sense of the limbs of the limbs is not consistent understanding of the state of force, summed up, there are roughly the following views: (1) that The force state is the same as that of the multi-layer frame; (2) It is assumed that the force state is the same as the single-layer frame; (3) It is considered that one limb is eccentrically compressed and the other limb is eccentrically compressed (or pulled). In order to clarify the stress state of the limbs, we measured the deformation of the concrete near the bottom of the column at the most dangerous section. The distribution of deformation along the section height is plotted in Figure 1 and Figure 2. The figure below shows the calculated load and standard load values. As can be seen from the figure, under the action of calculated load, the inner limbs of the transverse limb twin limbs are slightly eccentrically compressed and the outer limbs are eccentrically tensioned. It can also be seen that concrete deformation (and should