STRESS INCREMENT ANALYSIS ON EXTERNAL STEEL BAR OF EXTERNAL PRESTRESSING REINFORCE CONCRETE FRAME BEAM

摘要：

Based on the static experiment of four single-span externally prestressed frame beams, chara cteristics of the change of stress increment of the prestressing strands with load on the frame is investigated: the stress increment is approximately in linear relation with the mid-span deflecti on of the beam. Contrast between theoretical calculation and experimental result shows that the practical lateral restraining effect of frame columns on frame beams reduces the effective prestress of the external prestressing strands and their stress increment.

关键词： Externally prestressed reinforced concrete frame beam stress increment

作者: X. Cao S. Y. Wang F. J. Chen

作者单位: Department of Civil Engineering, Guilin University of Technology, Guilin, China Department of Civil Engineering, Hunan Project Professional Technology Institute, Hunan, China

会议类型: 国际会议

会议名称: 2007年土木工程结构创新与可持续发展国际会议(The International Symposium on Innovation & Sustainability of Structures in Civil Engineering)

会议地点: 上海

会议语种:英文

页码: 573-579

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）