“Earthquakes Don’t Kill People. Buildings Do”.
Susan Hough and Lucile Jones, U.S. Geological Survey, Pasadena, California
’A Safer World’
The Bangladesh National Building Code (BNBC) 2015 and the American Concrete Institute (ACI) 2014 state” Buildings in earthquake prone areas should be built on Special Moment Frames (SMF). The BNBC and ACI further state that special Moment Frames (SMF) should be reinforced with high ‘strain hardening’ steel.
All vital installations anywhere in the country like hospitals, schools, airports, railway stations and bridges cannot be allowed to fail in an earthquake. They have to be reinforced with ‘strain hardening’ steel and designed with special moments frames as per the guidelines of the Bangladesh National Building Code (BNBC).
Further any type of structure, commercial or residential, in Zone –IV which encompasses Sylhet and Mymensingh in the Bangladesh National Building Code (BNBC) needs to be reinforced with ‘strain hardening’ steel and designed with special moment frames.
Strain hardening steel requires additional stress beyond its yield strength to produce additional plastic deformation and the steel becomes stronger and more difficult to break.
In a landmark innovation BSRM brings forth BSRM ULTIMA the reinforcing steel with the unique ‘strain hardening’ property for the first time in the country.
BSRM ULTIMA conforms to the U.S. national reinforcing steel standard ASTM A-706 Grade 60 and ISO 6935-2 Grade 420 and recognized by the American Concrete Institute (ACI) of 2014 and the Bangladesh National Building Code (BNBC) of 2015.