TY - JOUR T1 - Theoretical study for predicting the fundamental period of concrete buildings including non-structural elements JO - Revista IBRACON de Estruturas e Materiais A1 - Alva, Gerson Moacyr Sisniegas A1 - Rigão, Alessandro Onofre A1 - Pinheiro, Marco Antônio Silva A1 - Kaminski Junior, João SN - 1983-4195 UL - 10.1590/S1983-41952026000400003 VL - 19 Y1 - 2026 PB - Brazil ER -