VAŠÁTKO, R. and J. VÍTEK. Experimental Verification of Long-term Behaviour of Concrete Structures. In: BÍLÝ, P., et al., eds. Proceedings of the 12th International fib PhD Symposium in Civil Engineering. 12th fib PhD Symposium in Civil Engineering, Praha, 2018-08-29/2018-08-31. Praha: ČVUT v Praze, Fakulta stavební, 2018. p. 755-762. fib PhD Symposia. vol. 12. ISBN 978-80-01-06401-6.
The first part is focused on description and evaluation of 4-point long-term bending test of untraditionally prestressed concrete slab. The system of prestressing has been developed to make construction of buildings faster and cheaper. It is based on prestressing of concrete bars with a small cross-sectional area. The bars are embedded into a thin concrete slab in the precasting plant. The slab is transported to the site; it forms a lost formwork for the final part which is cast in situ. The second part deals with long-term deformations of columns in a real building. Vibrating wire strain gauges were installed in two columns in the second underground floor of eight-storey office building. Four vibrating wire strain gauges in vertical direction were placed into the each of the columns. Other four vibrating wire strain gauges were installed into four laboratory cylinders and measured shrinkage strains. Measured values from the initial period (approx. 12 months) were compared with results of the first calculations and with values measured on laboratory specimens placed at the construction site.
eng
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
ČVUT v Praze, Fakulta stavební
dc.relation.ispartof
Proceedings of the 12th International fib PhD Symposium in Civil Engineering
dc.subject
Concrete
eng
dc.subject
Long-term deformation
eng
dc.subject
Vibrating wire strain gage
eng
dc.title
Experimental Verification of Long-term Behaviour of Concrete Structures
eng
dc.type
stať ve sborníku
cze
dc.type
conference paper
eng
dc.relation.projectid
info:eu-repo/grantAgreement/Technology Agency of the Czech Republic/TE/TE01020168/CZ/Centre for Effective and Sustainable Transport Infrastructure (CESTI)/CESTI
dc.relation.projectid
info:eu-repo/grantAgreement/Czech Science Foundation/GA/GA16-04454S/CZ/Uncertainties on the material level affecting those on the structural level/