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JIANG Ke-bin, DING Yong, YANG Jian-kui, ZHOU Yin-zhi. EXPERIMENTAL STUDY ON ULTIMATE TORSIONAL STRENGTH OF PC COMPOSITE BOX-GIRDER WITH CORRUGATED STEEL WEBS UNDER PURE TORSION[J]. Engineering Mechanics, 2013, 30(6): 175-182. DOI: 10.6052/j.issn.1000-4750.2012.02.0064
Citation: JIANG Ke-bin, DING Yong, YANG Jian-kui, ZHOU Yin-zhi. EXPERIMENTAL STUDY ON ULTIMATE TORSIONAL STRENGTH OF PC COMPOSITE BOX-GIRDER WITH CORRUGATED STEEL WEBS UNDER PURE TORSION[J]. Engineering Mechanics, 2013, 30(6): 175-182. DOI: 10.6052/j.issn.1000-4750.2012.02.0064
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EXPERIMENTAL STUDY ON ULTIMATE TORSIONAL STRENGTH OF PC COMPOSITE BOX-GIRDER WITH CORRUGATED STEEL WEBS UNDER PURE TORSION

  • Engineer Institute of Engineering Corps,PLA University of Science and Technology,Nanjing 210007,China

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  • Received Date: June 26, 2013
  • Revised Date: June 26, 2013
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    • Abstract
  • To better understand the torsional mechanism and influencing factors of a PC composite box-girder with corrugated steel webs,the ultimate torsional strength of four scaled specimens under pure torsion was studied.Monotonic pure torsion acts on specimens by eccentric concentrated loading.The experimental results show that cracks form at an angle of 45° to the member’s longitudinal axis at the top and bottom of concrete slabs.Longitudinal reinforced steel bars located at the center of cross section contribute little to the torsional capacity of the specimens.The torsional stiffness is proportional to the corrugation parameter ηand there is an increase in yielding torque of steel webs and the ultimate torque of specimens increase as the thickness of corrugated steel webs.
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    • References (5)
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