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1. EXPERIMENTAL STUDY OF CONCRETE-FILLED COLD-FORMED STEEL TUBULAR COLUMNS | |||
Zhu Aaizhu,Lu Yong,Zhu Hongping | |||
Civil and Architectural Engineering 25 September 2014 | |||
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Abstract:An experimental programme was conducted to investigate the compressive behaviour of concrete-filled cold-formed steel tubular (CFCFST) stub columns. A total of 30 CFCFST stub columns were tested. The cold-formed square hollow section (SHS) tubes included unstiffened and longitudinally inner-stiffened sections. Normal concrete and self-consolidating concrete with a nominal compressive strength of 30MPa were used to fill the cold-formed SHS steel tubes. The effects of the stiffeners on the rigidity, ductility, failure mode and average sectional strength of the specimens were examined and analyzed. The inner stiffeners were found to affect the ductility, the failure mode and overall sectional strength of the specimens significantly. The effect of the specimens with thinner (6mm) tubes tends to be more remarkable than specimens with thicker (10mm) tubes. | |||
TO cite this article:Zhu Aaizhu,Lu Yong,Zhu Hongping. EXPERIMENTAL STUDY OF CONCRETE-FILLED COLD-FORMED STEEL TUBULAR COLUMNS[OL].[25 September 2014] http://en.paper.edu.cn/en_releasepaper/content/4611337 |
2. Research on Monotonic and Fatigue Properties of Functionally Graded Composite Beams Crack-Controlled by UHTCC in Bending | |||
ZHANG Li,LI Qinghua,XU Shilang | |||
Civil and Architectural Engineering 20 June 2012 | |||
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Abstract:This research focuses on mechanical performances of UHTCC-FGC beams under monotonic and fatigue loading. A total of 3 UHTCC-FGC beams including 2 monotonic beams and one fatigue beam are tested, and the stress level of fatigue beam is set as 0.85. The constant ratio of minimum stress to maximum stress is set to 0.2 to avoid any impact and slip between the loading machine and the specimens during testing. The specimen is subjected to sinusoidal cyclic loading at 1 frequency. During the experiments, the fatigue life, deformability and loading capacity of UHTCC-FGC beams are measured and recorded. Meanwhile,the development of cracks and the failure pattern of UHTCC-FGC beams during the test are observed at the same time. | |||
TO cite this article:ZHANG Li,LI Qinghua,XU Shilang. Research on Monotonic and Fatigue Properties of Functionally Graded Composite Beams Crack-Controlled by UHTCC in Bending[OL].[20 June 2012] http://en.paper.edu.cn/en_releasepaper/content/4482690 |
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