The relationship between the average annual collapse probability and collapse safety margin of structures is identified to evaluate structural collapse performance quantitatively. A method is then proposed to determine the acceptable collapse margin ratio (CMR) with a certain annual collapse probability. Two methods. namely adopting steel braces and enlarging column cross sections. https://www.hindigyanvishv.com/amazing-offer-Mane-n-Tail-Shampoo-12oz-best-find/