Structural configuration is one of the
important parameters to control the
performance of multi-storeyed structures
subjected to lateral loads. On other hand, also
the economy of multi-storeyed structures
depends on the spacing of columns. The
present investigation is aiming to find the
effect of bay spacing on the performance of
medium to high rise RC structures subjected
to lateral loads. In this regard, a computer-
based analysis is carried out for 10, 15, 20, 25
and 30 storied bare frame structures. Each
structure performance under lateral loads is
investigated for 4 types of bay spacing i.e.
5m, 6m, 7.2m and 8.64m, with an increment
of 20% bay space each time. For each
structural model, the behaviour of the
structure is examined in terms of storey
displacement, storey drift and base shear. The
quantitative parametric comparison is done
between all the models mentioned and has
identified the optimal size of the bay spacing
to suit the aspect ratio of the structure is
proposed.