Zain Saeed

Umar bhae shouldn't be it story forces instead of Story shears ??? and the denominator as absolute maximum displacement of floors.

Can we have the formulae as mentioned by Mam Fatima and Mam Areeb. i would really appreciate it. i am making an excel sheet for various seismic checks and the information above would be really helpful. Thanks

Share the screen shot where you find this option in ETABS 2016.

Thanks .. So for the weak storey, the method mentioned in earlier posts of Mam Fatima i.e finding flexural strength of column/wall and dividing it by their length is ok ??

This is some thing new to me....You mean Flexural capacity (phi Mn) or the Axial load carrying capacity (Phi Pn) of column divided by length became its shear strength ?? ,,Can i have its reference

Can we not used this method of using the storey displacement values given at the very last section of the ETABs summary and divide these values by the storey forces to get the storey stiffness ?? and later compare the stiffness of one storey relative to other above or below it

For Applying loads on Basement wall this could also be done in SAP but ETABs has limitation of this ...It would be better if u design the Basement Walls using spread sheets of a very easy software named as QuickRWall

For Defining Modulus of Subgrade in SAFE see the 1st pic in attachment As in the figure you uploaded for punching shear results it is clear that u are getting values of the ratio more than 1 which is not oK ..As far as the 5' thickness u have specified for this Raft is too much ..Kindly check the Loadings in ETABs

The load combination file u have uploaded is missing on 4shared , the link u mentioned kindly mention it once again

Piles can be designed using a very popular software PCACOL

Basement wall design spread sheet BasementRetainingWall.xlsx

U can design the retaining walls easily with a software named as QuickRwall Or u can use the spreadsheet as attached BasementRetainingWall.xlsx

For interpreting the ETABs Results see the 1st picture in Attaachment As far as choosing a torsional constant for a member see the second doc. in attachmetns Torsional Constant for Beams in ETABs .docx

WaoOO Its near my Town Yup the Bridge undergone Servicebility Failure long time ago and the middle pier is settling from time to time as the scour is happening, when there is good amount of water flowing around its pier.