【摘要】 通过对9根高强钢筋混凝土梁的疲劳试验,进行了疲劳荷载作用下平截面假定的验证,分析了其挠度随着疲劳荷载循环次数增加的变化规律,探讨了高强钢筋混凝土梁在疲劳荷载作用下的刚度计算方法和计算公式,计算结果与试验结果符合良好。更多还原

【Abstract】 Through the experiment of fatigue rigidity of 9 high strength reinforced concrete beams, the paper validates the assumption of the flat section under fatigue load,and describes the law that beams, flexibility changes with increasing load circle degrees. It also discusses calculation methods and formulae of rigidity of high strength concrete beams under fatigue load. The calculation results are in good agreement with the experimental results.更多还原