Explosions could pretty much tear a building down in a short amount of time. Through kinetic and chemical energies, explosives and the projectiles they produce could as easily distort or cut the structure of a building. But if buildings are made blast proof, they can definitely survive explosions sans falling down. Otherwise, they’d collapse in a split-second just like what happened to the WTC in New York and city centers shattered by calamities. This is the reason infrastructures should be planned with blast resilient materials that can withstand calamities and terrorist attacks.
Shock waves could cause windowpanes and glasses to burst turning the pieces into lethal weapons. These projectiles are often the reason of death for victims. Thus, emphasis is to be given on widening the gap between the site of the bomb and where people are using barriers.
For starters, to help make a building blast proof and to be able to protect its whole Physical Security, the Blast Design is supposed to be flowing and continuous. Floors must be kept from collapsing by making their bearings and rebars continuous. In other words, if imagined, the supports is supposed to move continuously and adjust to accommodate the load should the building be shaken by earthquakes or bomb explosions. The same goes for the joists and main beams, which should be connected to the exterior columns of the building.
The main external column is supposed to also remain pliant and strong enough to support loads. Lastly, the columns from the basement to the first floor should be made stronger and should be protected with barriers.
If most of the said things are completed, then the beams and columns is supposed to be able to withstand the heavy weight resulting from the blast, making it impossible for the edifice to collapse. While it is true that there may be no real way of eliminating risks, there is hope by incorporating blast proof designs into construction projects, saving a lot of lives and business operations.