Tests on composite beams using new connections by adherence

• Autor(a) principal: Diógenes, Hidelbrando J. F.
• Data de Publicação: 2018
• Outros Autores: El Debs, Ana Lúcia H. C., Valente, Isabel B.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/1822/58662
• topic: Composite structures; Connection by adhesion; Interloking and friction; Full-scale flexural test; beams & girders; buildings, structures & design; Beams and girders; Buildings; Structures and design; Engenharia e Tecnologia::Engenharia Civil; Science & Technology

Cast in place concrete is often the cheapest solution in the context of conventional construction. However, prefabrication presents advantages in terms of execution time, quality of the structural elements and cost. Thus, the association of precast concrete elements and steel sections in a composite element can result in a high quality structure, executed with greater speed and economy of financial and material resources. Currently, steel to concrete composite connections are not completely adapted to prefabricated slabs and the use of connections by adhesion, interlocking and friction seem quite promising. To improve the knowledge in this field, this paper presents the development of full scale flexural tests of composite beams using new interfaces for these connections, and their results are interpreted and discussed. For comparison purposes, two beams with cast in place slab are tested. A satisfactory behavior in terms of strength is observed, in both cases investigated (cast in place and precast slab), justifying further studies on the subject.