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Notional Hor. Loads

 
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mc.upadhyay1
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Joined: 26 Jan 2003
Posts: 134

PostPosted: Wed Nov 05, 2003 9:31 am    Post subject: Notional Hor. Loads Reply with quote

Hello Respected Prof. Kalyanraman
The term notional horizontal loads (NHL) first comes in the Cl 4.1.2
(c)
in which we are deciding the type of rigid jointed frame (whether sway or
non sway),
after applying NHL and comparing the deflection of each story with the
given expressions.

the Cl. 4.3.6 also says To check the sway stability of the frame subjected
to gravity loads,
notional horizontal forces should be applied.

So it is nowhere written that we should design the str. for these NHL  as
suggested by you
(The sway stability check is done as per combined forces requirement of
section 9.3, which is a strength check)
If this is the intention it should be included in the table 5.1 given as
load combination.

Now if a rigid jointed frame comes out to be non-sway as per Cl. 4.1.2 (c)
for NHL
whether it will be considered as non-sway for other lateral loads (WL/EL)
also or
I have to determine the type of frame for these loads separately.

Regards

Mukesh Upadhyay

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