{"text_format":"3","workbook":"xls","n_sheets":1,"sheets":["承载力计算-抗压-轴压-混凝土柱"],"not_rendered":{"images":1,"external_links":1,"defined_names":25},"read":"whole","date_system":"1900","formulas":"cached_only"}

{"sheet":"承载力计算-抗压-轴压-混凝土柱","index":0,"n_rows":18,"n_cols":15,"rows_kept":18,"merged":[[0,0,0,3],[0,5,0,14],[1,2,1,3],[3,2,3,3],[6,0,6,3]],"flags":["formulas_cached_only"]}
["钢筋和混凝土指标",{"$nulls":4},"混凝土强度及弹性模量"]
["C",20,"C?(20,25,30,35,40,45,50,55) 混凝土等级",null,null,"强度","类型","C20","C25","C30","C35","C40","C45","C50","C55"]
["fc＝",9.6,"(N/mm2)","混凝土抗压强度设计值 fck",null,"fc","N/mm2",9.6,11.9,14.3,16.7,19.1,21.1,23.1,25.3]
["HRB",335,"HRB(235,335,400) 纵筋强度等级",null,null,"强度","类型","HPB235","HRB335","HRB400"]
["fy＝",300,"(N/mm2)","纵筋抗拉压强度设计值 fy",null,"fy","N/mm2",210,300,360]
[]
["轴压混凝土柱承载力计算"]
["Pi＝",3.14159265,null,"Pi＝3.14159265"]
["l0＝",{"v":3.2,"d":"3.200"},"(m)","柱计算长度 l0"]
["b＝",300,"(mm)","柱截面宽 b"]
["h＝",650,"(mm)","柱截面高 h"]
["dst＝",22,"(mm)","全截面纵筋直径 dst"]
["n＝",8,null,"全截面纵筋根数 n"]
["λ＝",{"v":10.666666666666666,"d":"10.667"},null,"柱长细比 λ=l0/b"]
["φ＝",{"v":0.97667,"d":"0.977"},null,"φ=需要查稳定系数表格"]
["As＝",{"v":3041.0616852000003,"d":"3041.06"},"(mm2)","全截面纵筋面积 As=Pi*dst^2/4"]
["Ac＝",{"v":195000,"d":"195000.00"},"(mm2)","混凝土面积 Ac=b*h"]
["Ncu＝",{"v":2447424.319342757,"d":"2.447E+06"},"(N)","Ncu=0.9φ*(fc*Ac+fy'*As)"]