Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

ASCE 7-02 Time period in Metric

[Subject Prev][Subject Next][Thread Prev][Thread Next]
Greetings,
 
This might be the dumbest question on the forum, but could anyone please let me know what I am doing incorrectly.

Reference : ASCE 7-02 Eq 9.5.5.3.2-1
 
Ta = Cu * hn ^ x
 
where for "All other structural systems" Cu = 0.02 (0.055 in metric) and x = 0.75 [TABLE 9.5.5.3.2]
 
For a building that is 14.6 m high (= 47.88' )
 
Using English Units, Ta = 0.02 (47.88)^0.75 = 0.36 s
 
Using Metric Units, Ta = 0.055 (14.6)^0.75 = 0.41 s
 
Could anyone please tell me as to why there is a discrepancy between the results?
 
Thanks
Anantha
 
 


VTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVTVT
 
ANANTHA NARAYAN, E.I.
Structural Engineer
Bliss and Nyitray Inc.
Miami, FL - 33134


To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre.