华中科技大学学报（自然科学版）Issue(7)：24-28,71,6.DOI:10.13245/j.hust.150705
超高性能混凝土梁抗剪承载力计算方法
Shear bearing capacity of ultra-high performance concrete beams
摘要
Abstract
T he ultimate limit equilibrium method ,modified compression field theory and plastic thoery were used to calculate the shear capacity of ultra‐high performance concrete beams .Based on the sim‐plified Rankine′s failure criteria ,the limit equilibrium method equations to solve the ultra‐high per‐formance concrete beams shear bearing capacity were deduced ;the equations of the modified compres‐sion field theory were modified to be suitable for the ultra‐high performance concrete beams ;the plas‐tic coefficient of ultra‐high performance concrete was proposed to calculate the ultra‐high performance concrete beams shear bearing capacity in plasticity theory .The calculation results of the 9 ultra‐high performance concrete beams and other researcher′s 17 beams show that the three methods all can well predict the shear bearing capacity of ultra‐high performance concrete beams ,the results in modified compression field theory is the most conservative ,the results in limit equilibrium method is the most close to the test values and the variation coefficient of the results is minimum .关键词
超高性能混凝土/抗剪承载力/修正压力场理论/塑性理论/极限平衡法Key words
ultra-high performance concrete/shear capacity/modified compression field theory/plas-tic thoery/ultimate limit equilibrium method分类
建筑与水利引用本文复制引用
徐海宾,邓宗才..超高性能混凝土梁抗剪承载力计算方法[J].华中科技大学学报（自然科学版）,2015,(7):24-28,71,6.基金项目
国家自然科学基金资助项目（51378032）；北京市自然科学基金资助项目（8142005）；高等学校博士学科点科研基金资助项目（201300050019）；河南理工大学青年基金资助项目（Q2014-08A）． （）
