Experimental Verification of Pre-Stressed Beams

Abstract:

The paper is a follow-up to previous presentations regarding the experience with ultra-high-performance (UHPC) concrete in the Czech Republic. It will present specific production and testing of pre-stressed beams in the company Skanska a.s. In 2013, the manufacturing facility of the company Skanska a.s. in Štětí, the Prefa plant, produced several series of pre-stressed beams made of ultra-high-performance concrete. The last series of pre-stressed beams was kept in a storage facility in Štětí over winter. In February 2014, destructive tests were carried out on two of the beams in the Štětí facility directly. Another two beams are used for monitoring the long-term changes under continuous load. A description of the tests and their results will be published in the paper. At the same time, a number of accompanying tests were carried out in the Klokner Institute of ČVUT in Prague. The results of these tests will also be mentioned in this paper. The experience and results have been achieved thanks to the grant project no. TA01010269 “Applied research of ultra-high-performance concrete (UHPC) for precast units of structures” subsidized by the Technology Agency of the Czech Republic.

• Periodical: Advanced Materials Research (Volume 1054)
• Pages: 116-121
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1054.116
• Online since: October 2014
• Authors: Jan Tichý*, Renata Cvancigerová
• Keywords: Durability, Prefabrication, Pre-Stressed Concrete, UHPC

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