格子砖表面积计算方法
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格子砖表面积计算
A.7孔格子砖(孔径43mm)
边长a为0
.115m,高h为0.10m,圆孔的直径d为0.043m。总面积
S=0.2133㎡。计算方法
如下:
S = S1+S2+S3 = 0.1620+0.03388+0.0174 =
0.2133㎡
S1(圆孔的侧面积)=πDH×个数=3.14×0.043×0.10×12=0.1620㎡
S2(上下表面积)=(正六边形面积-孔的截面积)×2
=(2.598×a
2
-
πr
2
×12)×2=0.03388㎡
S3(侧面长方形面积)=(侧面积-2×孔的纵截面积)×6
=(a×h-2dh) ×6
=0.0174㎡
B. 7孔格子砖(孔径40mm)
边长a为0.115m,高h为0.
10m,圆孔的直径d为0.04m。总面积
S=0.2103㎡。计算方法如下:
S =
S1+S2+S3 = 0.1507+0.03857+0.021 = 0.2103㎡
S1(圆孔的侧面积)=πDH×个数=3.14×0.04×0.10×12=0.1507㎡
S2(上下表面积)=(正六边形面积-孔的截面积)×2
=(2.598×a
2
-
πr
2
×12)×2=0.03857㎡
S3(侧面长方形面积)=(侧面积-2×孔的纵截面积)×6
=(a×h-2dh) ×6
=0.021㎡
B. 7孔格子砖(孔径35mm)
边长a为0.115m,高h为0
.10m,圆孔的直径d为0.035m。总面积
S=0.2045㎡。计算方法如下:
S
= S1+S2+S3 = 0.13188+0.045638+0.027 = 0.2045㎡
S1(圆孔的侧面积)=πDH×个数=3.14×0.035×0.10×12=0.13188㎡
S2(上下表面积)=(正六边形面积-孔的截面积)×2
=(2.598×a
2
-
πr
2
×12)×2=0.0456381㎡
S3(侧面长方形面积)=(侧面积-2×孔的纵截面积)×6
=(a×h-2dh) ×6
=0.027㎡
C. 19孔格子砖(孔径30mm) 边长a为0.142m,高h为0.120m,圆孔的直径d为0.03m。总面积
S=0.430
86㎡。计算方法如下:
S = S1+S2+S3 =
0.3052+0.06662+0.05904 = 0.43086㎡
S1(圆孔的侧面积)=πDH×个数=3.14×0.03×0.120×27=0.3052㎡
S2(上下表面积)=(正六边形面积-孔的截面积)×2
=(2.598×a
2
-
πr
2
×27)×2=0.06662㎡
S3(侧面长方形面积)=(侧面积-2×孔的纵截面积)×6
=(a×h-2dh) ×6
=0.05904㎡
D. 37孔砖(孔径28mm)
边长a为0.172m,高h为
0.120m,圆孔的直径d为0.028m。每块砖
表面积S=0.6644㎡。计算方法如下:
S = S1+S2+S3 = 0.5064+0.09464+0.06336 =
0.6644㎡
S1(圆孔的侧面积)=πDH×个数=3.14×0.028×0.120×(37
+13*6+12*3*6)
=3.14×0.028×0.120×48
=0.5064㎡
S2(上下表面积)=(正六边形面积-孔的截面积)×2
=(2.598×a
2
- πr
2
×48)×2
=(2.598×0.172
2
–
3.14×0.014
2
×48)×2
=0.09464㎡
S3(侧面长方形面积)=(侧面积-3×孔的纵截面积)×6
=(a×h-3dh) ×6
=(0.172×0.120-3×0.028×0.120) ×6
=0.06336㎡
E. 37孔砖(孔径19mm)
边长a为0.172m,高h为0.120m,圆孔的直径
d为0.019m。每块砖
表面积S=0.5529㎡。计算方法如下:
S
= S1+S2+S3 = 0.3436+0.1265+0.0828 = 0.5529㎡
S1
(圆孔的侧面积)=πDH×个数=3.14×0.019×0.120×(37+13*6+12*3*6)
=3.14×0.019×0.120×48
=
0.3436㎡
S2(上下表面积)=(正六边形面积-孔的截面积)×2
=(2.598×a
2
- πr
2
×48)×2
=(2.598×0.172
2
–
3.14×0.0095
2
×48)×2
=
0.1265㎡
S3(侧面长方形面积)=(侧面积-3×孔的纵截面积)×6
=(a×h-3dh) ×6
=(0.172×0.120-3×0.019×0.120) ×6
=0.0828㎡
F. 7孔六角孔格子砖(孔边长21.65mm)
砖边长a为0.120m,高h为0.1
00m,六角孔的边长a
孔
为0.02165m。
每块砖表面积S=0.22154㎡
。计算方法如下:
S = S1+S2+S3 =
0.1559+0.04560+0.02004=0.22154㎡
S1(六角孔的侧面积)=
a
孔
h×个数=0.02165×6×0.1×12
=0.02165×0.100×72
=0.1559㎡
S2(上下表面积)=(正六边形面积-孔的截面积)×2
=(2.598×a
2
-
2.598×a
孔
2
×12)×2
=(2.598×0.120
2
–
2.598×0.02165
2
×12)×2
=0.04560㎡
S3(侧面长方形面积)=(侧面积-4×孔的纵截面积)×6
=(a×h-4a
孔
h) ×6
=(0.120-4×0.02165)
×0.1×6
=0.02004㎡
F:37孔直径20mm
D.
37孔砖(孔径20mm)
边长a为0.172m,高h为0.120m,圆孔的直径d为0.020
m。每块砖
表面积S=0.5659㎡。计算方法如下:
S =
S1+S2+S3 = 0.3617+0.12357+0.08064 = 0.5659㎡
S1
(圆孔的侧面积)=πDH×个数=3.14×0.020×0.120×(37+13*6+12*3*6)
=3.14×0.020×0.120×48
=0.3617㎡
S2(上下表面积)=(正六边形面积-孔的截面积)×2
=(2.598×a
2
- πr
2
×48)×2
=(2.598×0.172
2
–
3.14×0.01
2
×48)×2
=0.12357㎡
S3(侧面长方形面积)=(侧面积-3×孔的纵截面积)×6
=(a×h-3dh) ×6
=(0.172×0.120-3×0.020×0.120) ×6
=0.08064㎡