最常用的面积、积计算公式.docVIP

用求面积、体积公式 1 平面图形面积 平面图形面积见表1-73。 平面图形面积 表1-73 2 多面体的体积和表面积 多面体的体积和表面积见表1-74。 多面体的体积和表面积 表1-74 3 物料堆体积计算 物料堆体积计算见表1-75。 物料堆体积计算 表1-75 4 壳体表面积、侧面积计算 1-3-4-1 圆球形薄壳（图1-1） 图1-1 圆球形薄壳计算图 4-2 椭圆抛物面扁壳（图1-2） 图1-2 椭圆抛物面扁壳计算图 1-3-4-3 椭圆抛物面扁壳系数计算 见图1-2，壳表面积（A）计算公式： A＝Sx·Sy＝2a×系数Ka×2b×系数Kb 式中 Ka、Kb——椭圆抛物面扁壳系数，可按表1-76查得。 椭圆抛物面扁壳系数表 表1-76 查表说明 ［例］已知2a＝24.0m，2b＝16.0m，hx＝3.0m，hy＝2.8m，试求椭圆抛物面扁壳表面积A。 先求出hx/2a＝3.0/24.0＝0.125 hy/2b＝2.8/16.0＝0.175 分别查表得系数Ka为1.0402和系数Kb为1.0765，则扁壳表面积A＝24.0×1.0402×16.0×1.0765＝429.99m2 1-3-4-4 圆抛物面扁壳（图1-3） 图1-3 圆抛物面扁壳计算图 1-3-4-5 单、双曲拱展开面积 1．单曲拱展开面积＝单曲拱系数×水平投影面积。 2．双曲拱展开面积＝双曲拱系数（大曲拱系数×小曲拱系数）×水平投影面积。 单、双曲拱展开面积系数见表1-77。单双曲拱展开面积计算图见图1-4。 图1-4 单、双曲拱展开面积计算图 L-拱跨；F-拱高 单、双曲拱展开面积系数表 表1-77 and due diligence evaluations article 22nd head office, branch (jurisdiction), risk management, marketing management branch within the Departments credit business person assumed responsibility for the supervision and inspection and due diligence evaluations. Article 23rd, Head Office, branches (jurisdiction), risk management, Marketing Management Department through on-site and off-site inspection, investigation report, interviews with investigators for pre-loan investigation work by way of conducting supervision and inspection, quality evaluation pre-loan investigation work, and based on the evaluation results, the implementation of diversity management. 24th the control and inspection (a) the implementation of the credit system: there is no breach of credit policy relating to the granting of credit and the head office; (B) dual credit rating: timeliness of ratings, whether the provisions of the rating, rating results are accurate; (C) the survey contents: data collection is complete, report writing is comprehensive, indicators analysis is objective, real, conclusions and the facts are consistent and reasonable; (D) double implementation of investigations system: practical implementation of double system; (E) other supervision and inspect