Demand for material in regular steel structures with and without braces in seismic zone in high risk according to the Standard Covenin 1618-1998. Gaceta Técnica [Internet]. 2015 Sep. 15 [cited 2026 Jul. 23];13(1):21-39. Available from: https://revistas2.uclave.org/index.php/gt/article/view/1283