UNIVERSITY OF SÃO PAULO SÃO CARLOS SCHOOL OF ENGINEERING DEPARTMENT OF STRUCTURAL ENGINEERING ALEX MICAEL DANTAS SOUSA One-way shear and punching strength of reinforced concrete slabs without transverse reinforcement under concentrated loads Cisalhamento unidirecional e resistência à punção de lajes de concreto armado sem armadura transversal sob cargas concentradas SÃO CARLOS - SP 2022