Measurement of verticality construction of bushings for laboratory construction materials

Geodesy and Cartography

Tomaš Jiroušek¹  Petr Jadviščok¹  Rostislav Dandoš¹ 

[1] Institute of Geodesy and Mine Surveying, Faculty of Mining and Geology, VSB – Technical University of Ostrava, 17.listopadu 15, CZ 708 33 Ostrava, Czech Republic;

关键词: verticality;    bushing;    tool;    CAD drawing;    Leica TS30;   

DOI  :  10.3846/20296991.2014.987458

来源: DOAJ

【 摘 要 】

This contribution describes process which was used for verticality measurement of the bushings for laboratory construction materials in the pavilion of testing. This pavilion is newly built in VŠB-TU 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 aboveground 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.

【 授权许可】

Unknown