Arquibancadas temporárias utilizadas em eventos urbanos : análise de projetos

• Autor(a) principal: Brito, Valkisfran Lira de
• Data de Publicação: 2005
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFPB
• Texto Completo: https://repositorio.ufpb.br/jspui/handle/tede/5551
• topic: Arquibancadas temporárias; Eventos urbanos; Sistemas estruturais; Vibrações; Temporary grandstands; Urban events; Structural systems; Vibrations; ENGENHARIAS::ENGENHARIA CIVIL

In this work, an investigation is carried out concerning temporary grandstands employed in urban events. Some grandstand models are presented, including their components and structural systems. Aspects regarding the procedure adopted by public agencies in the inspection of this type of structure are also presented. The analyses were focused on the dynamics of the structure, motivated by evidence of cases of collapse due to user-induced loads which were related to vibration problems. Inspections were conducted in mounted structures and modal tests were carried out in prototypes. The results were correlated to those obtained from numerical models being developed. The studies were initially focused on components of the structure: bars; connections (couplers, being either of right-angle or swivel type); seats and frame (horse). Modules of temporary grandstands composed of these components were investigated, allowing the development of experimentally calibrated numerical models to represent adequately the behavior of such modules in terms of a dynamic analysis. The conclusions identified drawbacks in the system of inspection and need of refined numerical models for the dynamic design of these structures. The numerical models being developed may be taken as a starting point for this task