RCFST COLUMNS EXPOSED TO FIRE: NON-STANDARD THERMAL TEST AND “HOT” COMPRESSION TEST RESULTS DISCUSSION

This paper presents a discussion on the experimental results of the “hot” condition compres-sion test performed on full-scale fire-exposed, Reinforced Concrete-Filled Steel Tubes (RCFST) and Rein-forced Concrete (RC) short columns (outer diameter 457 mm and length 1600 mm). In the companion papers, full details about the test procedure, thermal field, load-displacement curves are provided. In particular, that research work presents the results of five tests for thermal field measurements, that consider four specimens heated in a gas furnace in standard fire conditions (ISO 834) and one specimen heated in an electric furnace in non-standard conditions; the results of six axial compressive tests are also giv-en. In this paper, the results of non-standard thermal tests and a “hot” condition compression test are discussed. Also, numerical-experimental and analytical-experimental comparisons are proposed for non-standard thermal tests and the “hot” condition compression test, respectively.