Attention to design secure buildings against blast loading has become more important as the number of terrorist attacks are
increasing daily. Protection of the vulnerable structures against blast loading is a prerequisite to safeguard the occupants’ lives.
In this background, designing structures with concrete facades to transfer blast induced substantial lateral loads to a moment
carrying frame system, and allowing it to behave in the predetermined manner is paramount. A property of designed facade
restricts blast waves to propagate into the building and thereby prevents damages to key elements. Further it would avoid the
entering of exploded fragments which could injure occupants of the building. Failure of critical/key structural elements will lead
to the progressive collapse of the structure. This paper discusses the behaviour of the concrete facades under blast loads;
enhancement of load carrying capacity & effective load distribution of facades by introduction of concrete fins and reinforcement
design. Procedures to be followed in calculating blast loads, recognition of material nonlinearity for economising the designs
and material strength enhancement at straining are also discussed in the paper. In addition, behaviour of structures for different
occupancy levels based on performance-based designs are elaborated with relevant to the blast load actions