Investigation of ANN Architecture for Predicting Load-Carrying Capacity of Castellated Steel Beams

Table 1

Summary of the input and output variables of CSB beams used in this study.

	Symbol	Unit	Min	Median	Mean	Max	StD	SK
The overall depth of the castellated beam	I1	mm	180.000	380.500	335.921	550.000	99.597	−0.244
The vertical projection of inclined side of opening	I2	mm	50.000	110.000	103.358	250.000	40.154	0.389
The web thickness	I3	mm	2.000	3.560	3.647	5.000	0.883	−0.576
The flange width	I4	mm	58.420	66.900	68.386	78.486	3.538	0.590
The flange thickness	I5	mm	3.988	4.590	5.344	6.900	1.032	0.666
The width of web post at middepth	I6	mm	30.000	50.000	53.753	95.000	19.262	0.235
The horizontal projection of inclined side of opening	I7	mm	30.000	55.000	59.230	149.352	22.754	1.128
The minimum web yield stress	I8	MPa	311.654	352.000	351.360	374.400	7.123	−4.195
The minimum flange yield stress	I9	MPa	307.517	352.000	350.968	383.540	8.251	−3.137
The load-carrying capacity	Y	kN	20.370	74.068	73.524	138.880	27.676	0.251

StD = standard deviation; SK=skewness.