Tall Building Code, IS 16700-2017: Clause 5 4 Lateral Drift

Intention:
To help students and practising engineers understand IS Code Provisions.
References:
IS 16700-2017 Criteria for Structural Safety of Tall Concrete Buildings.
IS 1893:2016 Criteria for earthquake resistant design of structures
IAStructE Code and Commentary on IS 1893 Criteria for Earthquake Resistant Design of Structures Part 1 General Provisions and Buildings (Sixth Revision)
BMTPC Earthquake Tips
GSDMA Document Proposed Modifications and Commentary for Code on Criteria for Earthquake Resistant Design of Structures IS 1893: 2016 (Part 1- General Provisions and Buildings)
NPTEL Lectures on Structural Dynamics by R. Pradeep Kumar. nptel.ac.in/courses/105/106/1...
Acknowledgements:
The support of students in the preparation of the slides is sincerely acknowledged.
Thank you,
R. Pradeep Kumar

[@ARUNSASIDHARANNAIR]

Sir please complete all clauses it's more helpful for us

[@swapnil6923]

Thank you sir.

[@mallikarjunatkalamma]

Thank you so much sir

[@akshaythakur2395]

sir, for drift calculation by which load combination these displacement values should find i.e, by service load combinations with load factor 1 or by strength load combination with load factor 1.2 or 1.5 or just by lateral load case only?
this clarification is not given in the code

[@eboy4686]

Dear Teacher, while performing a nonlinear time history analysis to determine the storey drift ratio, for each time step, lateral forces differ from one another, leading to different storey drift ratios at every time step. So, how can I find the overall/governing storey drift ratio?

[@quakescodes1142]

You may first get the displacement time history of each storey and later find the drift at each time instant i.e., [Ui(tj) - Ui+1(tj)]/h. here i and i+1 represent floor levels, tj represents time instant, U represents displacement, and h is floor height.

[@ruhilsaab5179]

Hello Sir, here mention factored earthquake load combination, that means we should take factored load section properties ??

[@prawingajbhiye8816]

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