混凝土悬臂深梁设计方法的试验研究及其在上海博物馆工程中的应用

Experimental Research on Design Methods of Reinforced Concrete Cantilever Deep Beams and Their Application in Shanghai Museum Project

本文绘出14片悬臂深梁在一次加载和反复加载下的试验结果。讨论破坏形态，分析受力性能，提出承载力计算公式，计算值与试验值符合良好。在试验基础上提出悬臂深梁设计方法，并应用于上海博物馆工程16片悬臂深梁设计。根据模拟关系近似估计实际的悬臂深梁的承载能力及大体的安全储备，对设计提出改进意见，供工程应用及修订规范参考。

In this paper, the test results of 14 reinforced concrete cantilever deep beam specimens undermonotonic and repeated cyclic loadings are elucidated. The failure modes and behavior of suchbeams are discussed. The calculation formulas of bearing capacity and inclined crack resistance ofcanti1ever deep beams having their results in good agreement with the test ones are presented.The proposed design methods of cantilever deep beams are put forward and used in the design of16 cantilever deep beams in Shanghai Museum Proect on the basis of the test results. The bearingcapacities and the approximate safety factors of the actual size cantilever deep beams are probablyestimated through the simulation relation between specimens and actual members, and final sug-gestions for improving the design are proposed. The conclusions can be used as a reference in thedesign of similar cantilever deep beams and for the modification of design codes.