000012719 001__ 12719
000012719 005__ 20160920162641.0
000012719 04107 $$aeng
000012719 046__ $$k2016-09-05
000012719 100__ $$aLi, H.-T.
000012719 24500 $$aMechanical properties of cold-formed high strength steel at elevated temperatures

000012719 24630 $$n6.$$pInsights and Innovations in Structural Engineering, Mechanics and Computation
000012719 260__ $$bTaylor and Francis Group, London, UK
000012719 506__ $$arestricted
000012719 520__ $$2eng$$aThis paper presents the mechanical properties of cold-formed high strength steel at elevated temperatures. Mechanical properties at elevated temperatures have a crucial role in fire resistance design of steel structures. The fire resistances of steel structures in the existing international standards are mainly based on experimental data of hot-rolled mild steel. However, investigation of high strength steel at elevated temperatures is limited. Therefore, a test program has been carried out to investigate the mechanical properties of cold-formed high strength steel at elevated temperatures. The coupon specimens were extracted from cold-formed high strength steel square and rectangular hollow sections with nominal yield stresses of 700 and 900 MPa at ambient temperature. The coupon tests were carried out through steady state test method for temperatures up to 1000°C. Mechanical properties including elastic modulus, yield stress and ultimate strength were obtained from the tests. The test results were compared with the design values in the European, American, Australian and British standards. The comparison results revealed the necessity of proposing specified design rules for mechanical properties of cold-formed high strength steel at elevated temperatures.

000012719 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012719 653__ $$a

000012719 7112_ $$aSixth International Conference on Structural Engineering, Mechanics and Computation$$cCape Town, South Africa$$d2016-09-05 / 2016-09-07$$gSEMC2016
000012719 720__ $$aLi, H.-T.$$iYoung, B.
000012719 8560_ $$ffischerc@itam.cas.cz
000012719 8564_ $$s906028$$uhttp://invenio.itam.cas.cz/record/12719/files/167.pdf$$yOriginal version of the author's contribution as presented on CD, 167.pdf.
000012719 962__ $$r12552
000012719 980__ $$aPAPER