论文部分内容阅读
未设置桥式吊车的单层房屋的柱子,设有吊车的厂房柱子的上、下部分,有限层数的多层房屋的柱子,管道支架和露天栈桥的柱子,以及其它许多建筑物的柱子,都是矩形截面,法向力在柱截面高度范围内是不变的。矩形截面柱在大多数情况下(由于风、温度等作用之故)受到两个方向的外力作用,因此,属第一类偏心受压的对称配筋柱(图1)在工程上采用得最为普通。按照苏联现行规范((?)Ⅱ-21-75),考虑到挠度对偏心矩值的影响,以系数η乘M值。按变形体系进行静力计算时,取η=
Pillars of single-storey houses without bridge cranes, upper and lower parts of the pillars of buildings equipped with cranes, pillars of multi-storey buildings with limited number of floors, pillars of pipe supports and open-caste bridges, and pillars of many other buildings, All are rectangular sections, and the normal force is constant within the column section height. Rectangular column in most cases (because of the role of wind, temperature, etc.) is subject to external forces in both directions, therefore, the symmetrical eccentric reinforcement column (Figure 1) which is the first type of eccentric compression is most used in engineering. ordinary. According to the current Soviet norms ((?)II-21-75), taking into account the impact of deflection on the eccentric moment, the coefficient η is multiplied by the M value. According to the deformation system for static calculation, take η=