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Assalam o alaikum, What are load cases for which i need to check my deflection. ACI table 9.5 ( b ) there need to check two types of deflections. i) Immediate deflection due to live load ii) Total deflection [which is sum of long term deflection due to sustained loads [sustained load means majorly dead load and some portion of minimum live load which is permanently applied] and immediate deflection due to live load) And long term deflection can be calculated as immediate deflection due to sustained loads (sustained load means majorly dead load and some portion of minimum live load which is permanently applied) multiplied by 2. So equation goes some what like this i) for immediate deflection, Deflection = immediate due to live ii) For Total Deflection Total Deflection = immediate + long term where immediate deflection due to Live Long term deflection = 2 x Immediate deflection due to dead 2 is taken for simplicity in case of five years so Total deflection = immediate deflection due to Live + 2 x immediate deflection due to sustained load (dead majorly) Kindly varify.

Waqas, I will just add that for beam/ coulmns sizing its always a good idea to do a quick model and check all B/C Ratios in the beginning of the project. Also, construction guys are more used to beam size multiples of 3-probably because of formwork. So you may want to provide a beam width/ depth accordingly. Thanks.

Wa-alaikum-assalam! IMO, yes. You may refer to Table 29-3 in PCA Notes on ACI 318-08, providing an excellent summary of all the seismic requirements of ACI 318, in case of flexural members of SMFs (applicable to seismic zones 3 & 4), as well as comparison of the code requirements for other MFs. Regards.