Dear Indrajit,
This is a subject of study from a long time ago (it is better to look for this subject in languages in Spanish because this is the case of construction buildings in South America or other regions where clay is abundant, and the labor is cheap). I am sending you a link with an interesting Report presented in Mexico (Spanish language) where you can find tips to perform your structural analysis:
Pérez_2010_Guide for analysis of Masonry Structures------------------------------
Andres Guzman Ing.,Ing.,M.ASCE
Associate Professor
UNIVERSIDAD DEL NORTE
Barranquilla
573004284680
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