Reliability Analysis-Based Numerical Calculation of Metal Structure of Bridge Crane

Table 1

Random variable and its statistical properties of bridge crane metal structure.

Random variable (factors)	Meaning	Average	Standard deviation
W/10^6 N	Lifting load	250	20
H/mm	Main beam height	8155	366
B/mm	Main beam width	4108	207
E/MPa	Elastic modulus	206	10
e_YYB/mm	Upper and lower flange plate thickness	14	4.2
e_FB/mm	Main, vice web thickness	12	2.5