【摘要】 采用数值分析方法 ,利用计算程序 ,在忽略梁剪切变形的基础上 ,详细讨论了均布荷载作用下受拉钢筋暴露的钢筋混凝土简支梁的变形性能。给出了影响开口梁变形性能的参数及影响程度。对于开口的宽度和高度、受拉钢筋的配筋率、混凝土强度等级、是否配架立筋以及开口的位置等因素对开口梁变形性能的影响 ,给予了清晰的论述。为加固施工中全面了解开口梁的变形性能提供了科学的依据 ,也为研究不能卸载的钢筋混凝土构件的加固方法提供了理论基础更多还原

【Abstract】 According to the numerical analytical theory suggested by the first author,base on the assumption of deflection and ignoring shear infection,a clear discussion is carried out about the influence of various parameter(width and height of exposed main reinforcemtnt,percentage area of reinforcement in beam section,strength of concrete,if or no norminal top steel is used,distance of the end of exposed reinforcement from the left support)on the inflection of RC beams with exposed tensile reinforcement under average load.Although there is a little par that the inflection of disrepaired beams is larger than inflection of ontic beams,but the increscent extent is very little.Except this condition,the inflection of disrepaired beams is smaller than inflection of ontic beams.It is the support that understand the behavior of inflection of RC beams with exposed tensile reinforcement in the reinforced construction.更多还原