Abstract
Due to the large increase in the use of precast concrete structures in multistory buildings, this work covers a study on the behavior of beam-column connection with emphasis on the continuity provided by the slab reinforcement. Two prototypes were tested, each one with a different detail of the continuity reinforcement distribution. In both connections, the steel area used on the concrete cover of the hollow core slab was the same, varying the amount of bars that passed through the column and the ones that were placed adjacent to the column. The experimental results showed that the connection with bars adjacent to the column presented stiffness increase and a better cracking control. According to the classification the two tested connections can be considered semi-rigid.
Highlights
Due to the large increase in the use of precast concrete structures in multistory buildings, this work covers a study on the behavior of beam-column connection with emphasis on the continuity provided by the slab reinforcement
The researches about the behavior of precast concrete structures are very important for the modernization of the Civil Construction Industry, mainly to improve the quality, productivity and to promote the rationalization on sites
The large-scale and the few available workers were the main reasons for the development of the precast concrete structures
Summary
The researches about the behavior of precast concrete structures are very important for the modernization of the Civil Construction Industry, mainly to improve the quality, productivity and to promote the rationalization on sites. The use of precast concrete structures is increasing in Brazil The reason for this growth is the efficiency of this type of structure to meet the market requirements that are the compliance with deadlines and technical quality. The ABNT NBR 9062 [1] is the Brazilian Code that governs the design and construction of precast concrete structures This code has received many contributions from several studies involving the behavior of connections with the intention of spreading the technical knowledge obtained and usual the use of this type of structure. The development of this type of connection is extremely important to enable the use of precast concrete system in multistory buildings
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