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Butt joint of precast concrete columns

New investigations of columns with change of cross-section and misalignment of longitudinal …


… reinforcement The butt joint is an economical and the common way to build precast concrete columns. The stresses in the joint area can be described with established design concepts. The design of the joint area is done as well. However, the literature lacks investigations on the cases of changing cross-sections or misalignment of the longitudinal reinforcement bars in the joint area. In this paper, experimental investigations are described which show that the load bearing capacity of the columns is reduced significantly due to these effects. To account for these effects in a design concept, further investigations are necessary.

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CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 12 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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