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["钢筋和混凝土指标",{"$nulls":4},"混凝土强度及弹性模量"]
["C",25,"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"]
["fck＝",16.7,"(N/mm2)","混凝土抗压强度标准值 fck",null,"fck","N/mm2",13.4,16.7,20.1,23.4,26.8,29.6,32.4,35.5]
["ftk＝",1.78,"(N/mm2)","混凝土抗拉强度标准值 ftk",null,"ftk","N/mm2",1.54,1.78,2.01,2.2,2.39,2.51,2.64,2.74]
["fc＝",11.9,"(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]
["ft＝",1.27,"(N/mm2)","混凝土抗拉强度设计值 ft",null,"ft","N/mm2",1.1,1.27,1.43,1.57,1.71,1.8,1.89,1.96]
["Ec＝",28000,"(N/mm2)","混凝土弹性模量 Ec",null,"Ec","N/mm2",25500,28000,30000,31500,32500,33500,34500,35500]
["HPB",235,"HPB(235,335,400) 箍筋强度等级",null,null,"强度","类型","HPB235","HRB335","HRB400"]
["fyv＝",210,"(N/mm2)","箍筋抗拉压强度设计值 fyv",null,"fyv","N/mm2",210,300,360]
["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]
["Es＝",200000,"(N/mm2)",null,null,"Es","N/mm2",210000,200000,200000]
["α1＝",{"v":1,"d":"1.00"},null,"1.0<C50<内插<C80<0.94",null,"直径",null,"8~20","6~50","6~50"]
["β1＝",{"v":0.8,"d":"0.80"},null,"0.8<C50<内插<C80<0.74"]
["ξb＝",0.55,null,"ξb＝β1/(1+fy/0.0033Es)"]
["αE＝",{"v":7.142857142857143,"d":"7.14"},null,"αE＝Es/Ec"]
[]
["梁截面尺寸"]
["b＝",300,"(mm)","梁宽度 b"]
["h＝",600,"(mm)","梁高度 h"]
["c＝",35,"(mm)","梁保护层厚度 c"]
["h0＝",565,"(mm)","梁有效高度 h0"]
["l0＝",{"v":3,"d":"3.000"},"(m)","梁计算跨度 l0"]
["Sn＝",2000,"(mm)","梁净距 Sn"]
["hf＝",120,"(mm)","梁翼缘高度 hf"]
["bf＝",1000,"(mm)","梁跨中弯矩截面宽度 bf"]
["支座负弯矩钢筋：5φ22"]
["Nf＝",5,null,"支座负筋根数 Nf"]
["φf＝",22,"(mm)","支座负筋直径 φf"]
["Asf＝",{"v":1900.6635532500002,"d":"1901"},"(mm2)","支座负筋面积 Asf"]
["ρf＝",{"v":0.011213354296460178,"d":"1.121%"},null,"支座负筋配筋率 ρf"]
["ρfmax",{"v":0.021816666666666668,"d":"2.182%"},null,"支座负筋最大配筋率 ρfmax"]
["ξf＝",{"v":0.28268960411244143,"d":"0.283"},null,"支座负筋相对受压区高度 ξf"]
["Muf＝",{"v":276.62648140209876,"d":"276.626"},"(kN-m)","支座抗弯承载力 Muf"]
[]
[]
["跨中正弯矩钢筋：4φ20"]
["Nz＝",4,null,"跨中正筋根数 Nz"]
["φz＝",20,"(mm)","跨中正筋直径 φz"]
["Asz＝",{"v":1256.63706,"d":"1257"},"(mm2)","跨中正筋面积 Asz"]
["ρz＝",{"v":0.00741378796460177,"d":"0.741%"},null,"跨中正筋配筋率 ρz"]
["箍筋：φ6@200"]
["Nj＝",2,"","箍筋肢数 Nj"]
["φj＝",6,"(mm)","箍筋直径 φj"]
["dj＝",200,"(mm)","箍筋间距 dj"]
["ρj＝",{"v":0.2827433385,"d":"0.283"},null,"配箍率 ρj"]
[]
["梁截面尺寸"]
["b＝",300,"(mm)","梁宽度 b"]
["h＝",600,"(mm)","梁高度 h"]
["c＝",35,"(mm)","梁保护层厚度 c"]
["h0＝",565,"(mm)","梁有效高度 h0"]
["l0＝",{"v":3,"d":"3.000"},"(m)","梁计算跨度 l0"]
["Sn＝",2000,"(mm)","梁净距 Sn"]
["hf＝",120,"(mm)","梁翼缘高度 hf"]
["bf＝",1000,"(mm)","梁支座负弯矩截面宽度 bf"]
["支座负弯矩钢筋：5φ22"]
["φf＝",22,"(mm)","支座负弯矩钢筋直径 φf"]
["Asf＝",{"v":1900.6635532500002,"d":"1901"},"(mm2)","支座负弯矩钢筋面积 Asf"]
["ρf＝",{"v":0.011213354296460178,"d":"1.121%"},null,"支座负弯矩钢筋配筋率 ρf"]
["跨中正弯矩钢筋：4φ20"]
["Nz＝",4,null,"跨中正弯矩钢筋根数 Nz"]
["φz＝",20,"(mm)","跨中正弯矩钢筋直径 φz"]
["Asz＝",{"v":1256.63706,"d":"1257"},"(mm2)","跨中正弯矩钢筋面积 Asz"]
["ρz＝",{"v":0.00741378796460177,"d":"0.741%"},null,"跨中正弯矩钢筋配筋率 ρz"]
["箍筋：φ6@200"]
["Nj＝",2,"","箍筋肢数 Nj"]
["φj＝",6,"(mm)","箍筋直径 φj"]
["dj＝",200,"(mm)","箍筋间距 dj"]
["ρj＝",{"v":0.2827433385,"d":"0.283"},null,"配箍率 ρj"]

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["双向板楼盖梁板尺寸"]
["长边梁"]
["b＝",300,"(mm)","梁宽度 b"]
["h＝",600,"(mm)","梁高度 h"]
["lc＝",{"v":3.9,"d":"3.900"},"(m)","梁支座间距 lc"]
["c＝",35,"(mm)","梁保护层厚度 c"]
["h0＝",565,"(mm)","梁有效高度 h0"]
["ln＝",{"$error":"#REF!"},"(m)","梁净跨 ln=lc-by"]
["l＝",{"$error":"#REF!"},"(m)","梁计算跨度 l＝lc"]

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