DBPapers
DOI: 10.5593/SGEM2014/B22/S9.023

DETERMINATION OF BUSHING VERTICALITY FOR LOADING TESTS IN THE PAVILION OF TESTING FAST

R. Dandos, P. Jadviscok,T. Jirousek,J. Adamovsky
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-11-7 / ISSN 1314-2704, June 19-25, 2014, Book 2, Vol. 2, 175-182 pp

ABSTRACT
The article describes procedure which was used for verticality determination of the bushings for loading tests in the pavilion of testing. This pavilion is newly built in VŠBTU Ostrava, Faculty of Civil Engineering, as part of the Testing house of the building materials. The requirement of the building investor was to determine the verticality of the bushings placed between the first above-ground and the first underground floor. After the building finishing, the bushings with the diameter 70 mm will be used for loading tests of various building materials. The final number of bushings is 169, and they are placed lengthwise and crosswise in the step of 750 mm. The centres of the bushings were measured by polar method in pavilion local coordinate system. The precision of the bushing centres determination was ± 5 mm according to the investor´s requirement. The precision would not be followed if the standard equipment for reflector fixing was used. In that case, it was necessary to design and manufacture special tool in the shape of truncated cone. On the top part was placed central pivot for reflector with additional plate bubble. The calculation of the bushing centres was done in Groma software and graphically drawn in AutoCAD 2014. As a result, there is a CAD drawing with colour-distinguished top views of the bushings in the first above-ground floor as well as the first underground floor.

Keywords: Bushing, tool, polar method, CAD drawing