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Evaluation of surface roughness and vertical shear reinforcement in contact zone of reinforced concrete constructions with survival moulds /Gelžbetoninių konstrukcijų su liktiniais klojiniais jungiamojo strypyno ir betono paviršiaus šiurkštumo įvertinimas kontakto zonoje

    Rėda Bistrickaitė Affiliation

Abstract

Structurally and technologically expedient and economic precast-monolithic reinforcement floor slabs are widely used in western European countries. In Lithuania they are unknown, although there are all conditions for introducing them.


Precast-monolithic slabs are made from precast layers (used as survival moulds) and monolithic layers (poured in situ). These layers are connected to make a compact structure with vertical shear reinforcement.


There exists a method for calculating slabs analogous to a curved top truss. According to this method, the deflection of composite slabs increases considerably compared with that of one-layer structures.


By evaluating both the transformation of tangential shear stress in the cross-section of bending elements and the influence of adhesive power in the contact zone, we have defined in a more exact way the method for calculating composite slabs. Additionally, we have included a vertical reinforcement into the structure and diminished vertical deflections of slabs up to the values close to those of one-layer structures.


First Published Online: 26 Jul 2012

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How to Cite
Bistrickaitė, R. (2000). Evaluation of surface roughness and vertical shear reinforcement in contact zone of reinforced concrete constructions with survival moulds. Journal of Civil Engineering and Management, 6(5), 322-328. https://doi.org/10.3846/13921525.2000.10531609
Published in Issue
Oct 31, 2000
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