钢筋混凝土悬臂深受弯构件计算方法探讨

Research on calculation methods of cantilever deep flexural reinforced concrete members

对房屋和桥涵设计规范的有关牛腿、简支和连续深受弯梁、墩台盖梁、桩基承台等计算规定进行分析比较。参照上述有关规范规定,对悬臂长高比小于2.5范围的悬臂深受弯构件提出了补充计算方法,扩大了《混凝土结构设计规范》中深受弯构件设计的应用范围,解决了多种形式荷载作用下悬臂短梁、悬臂深梁的计算方法。用不同计算方法,对不同悬臂长高比的悬臂构件进行计算和结果分析,验证这种方法的可行性。

Through a comparative analysis of the calculation rules on brackets,simple frame and continuous deep flexural members,pier capping beam and pile foundation which in the building and bridge design specifications.This paper puts forward the supplementary calculation method on the cantilever deep flexural members with length-height ratio less than 2.5,and expands the application scope of the deep flexural members in the code for design of concrete structures,and gives the calculation method of the different forms of short cantilever beam and deep cantilever beam.Different calculation methods for different length-height ratio of the cantilever components are calculated.And by analyzing the results,this method proved to be feasible.