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Crane Loads

 
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for_prof_arc at hotmai...
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PostPosted: Wed Oct 15, 2003 11:53 am    Post subject: Crane Loads Reply with quote

Effective Live Load under Earthquake Condition:

I would suggest that we ignore live load (weight carried by the crane - not
its dead weight)
while considering earthquake forces. The reasons are as follows:
1. It is highly unlikely that maximum earthquake will occur simultaneously
with maximum live load
2. The sling and the mass will behave as a pendulum and they could act as
vibration absorber
3. The crane carriage is friction mounted and the crane is also mounted on
wheels on the crane
girder with small frcition

We should debate this item and may be arrive at a factor like 20% eventually

Industrial structures are alone candidates for steel construction in India
and hence
crane loads are important.

A R Chandrasekaran

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