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五、算例 如图6所示,环形基础的外径D_0=16.7m,内径D(?)=15.3m。我们把它分成二十四个单元,按两种不利荷载情况进行计算,第一种反对称荷载情况,是在2、22点上作用柱集中荷载p_1;6、18点上作用柱集中荷载P_2。第二种反对称荷载情况,是在4、8、16、20点上作用集中荷载P~1,0、12点上柱荷载为零。上部结构水平力传来的弯矩为M=20000kN·m。 钢筋砼基础材料E=2.3×10~7kPa,地基的变形模量E_0=40000kPa。
V. Calculation example As shown in Fig. 6, the outer diameter of the ring base is D_0 = 16.7m, and the inner diameter D(?) = 15.3m. We divided it into twenty-four units and calculated them according to two unfavorable load conditions. The first type of anti-symmetric load was the concentrated load p_1 at the 2 and 22 points, and the concentrated load P_2 at the 6 and 18 points. . The second kind of anti-symmetric load is that the column load is zero at the points 4, 8, 16 and 20 where the concentrated load P~1, 0 and 12 acts. The bending moment from the horizontal force of the superstructure is M=20000 kN·m. Reinforced concrete base material E = 2.3 × 10 ~ 7kPa, deformation modulus of the foundation E_0 = 40000kPa.