Reliability-based design optimization of crane bridges ...
2019-1-12u2002·u2002According to the crane design specifications (GB/T3811–2008 2008), the most critical working condition of the crane bridge of the general-purpose overhead crane is when the trolley with a full load positioned in the middle of the span is lowering and braking, and meanwhile the crane bridge is starting or braking.At this time, the middle span is the critical section.
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