D.K. Paul Professor Earthquake Engg. Dept!. University of Roorkee Rourkee – 247667 Hilly areas are under going rapid chlnges due to economic development, which have marked effects on the buildings in terms of style, material and method of construction. Stone, load bearing and wooden building structures are common. Most of the hilly regions of India are highly seismic. Buildings on hill slope differs in a way from other buildings. The various floors of such buildings steps back towards the hill slope and at the same time building may have setbacks also. Due to varied configurations of buildings ·in hill areas, these buildings become highly irregular and asymmetric. Buildings constructed in hill areas are much more vulnerable to seismic environment. In this paper the state of art on seismic analysis, behaviour and analytical modelling of components of hill buildings has been brought out and the conclusions has been drawn.
KEYWORDS: Stepback, Setback, Torsional Coupling, Irregular Buildings, Stiffness Degradation, Analytical Models, Inelastic Analysis