SAP2000 Tutorial, Hyperbolic cooling tower Modeling In SAP2000 v23

[@ajazmahemoodsayyed4122]

Amazing sir. Sir i understood beam column capacity ratio sir i dont understand column beam capacity ratio in etab and also it's ratio value?

[@KSSE_Engineer]

if you understand the concept of capacity ratio , than it is the same in ETABS and all software's.

[@ajazmahemoodsayyed4122]

@@KSSE_Engineer sir i dont understand column beam capacity ratio in etab which is different from beam column capacity ratio

[@KSSE_Engineer]

@@ajazmahemoodsayyed4122 The ratio of the flexural capacity of Beam/column is computed to preclude the formation of plastic hinges in columns for apparent reasons; refer to section 21.6.2 of ACI 318-11. The sum of a column's flexural capacities at a joint should be 1.2 times the capacities of beam framing into the joint in a particular direction. Etabs alerts the user when the ratio exceeds; if it does not alert, it means either you are ok or have not activated the corresponding seismic category (I think it calculates for category D E & F) for which this capacity needs to be computed.

[@nisanursahin8575]

Sir hello, how can we find the principal stresses on the beam by not using any software, only hand calculations?

[@KSSE_Engineer]

Hi dear, check elasticity or plasticity theory book in these two books all types of stresses are discussed in details .

[@nisanursahin8575]

@@KSSE_Engineer is it for hyperbolic structures, sir? Because i meant the principal stresses that will occur in the hyperbolic structure due to its self weight