Masters Thesis

Blast Loading Effect On Buckling Restrained Braced Frames

Buckling -restrained braced frames are being used around the world to resist lateral loads on structures. They are used due to their high ductility after yielding and the ability to absorb energy. This paper focuses on blast loading on buckling-restrained braced frames. One archetype is looked at in detailed while only the important components are looked at for a second. The main archetype is the chevron braced frame and the second, is the v-braced frame. The two are subjected to a short duration blast load that last 21.7 ms. They are analyzed while the brace core thickness is increased by half an inch. In conclusion, the brace core thickness played a significant role in reducing deformation. The chevron brace also performed significantly better than the v-braced frame. This was due to the position of the braces which created more out of plane deformation in the v-frame archetype. It also witnesses more x-deformation as well as damage.

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