TY - JOUR T1 - Short columns composed of concrete-filled steel tubes in a fire situation – Numerical model and the “air-gap” effect JO - Revista IBRACON de Estruturas e Materiais A1 - Rodrigues, Fábio Masini A1 - Moreno Júnior, Armando Lopes A1 - Munaiar Neto, Jorge SN - 1983-4195 UL - 10.1590/S1983-41952022000300009 VL - 15 Y1 - 2022 PB - Brasil ER -