摘要
本文主要介绍二次受力和一次受力叠合连续梁(文中分别简称为叠合梁和对比梁)的斜截面受力性能试验.通过试验研究,发现了存在于叠合梁的内剪跨梁腹中的由第一阶段荷载产生的荷载预压应力区(文中简称为荷载预压区),探讨了荷载预压区对叠合梁斜截面受力性能和破坏形态的影响及其提高斜截面受剪承载力的机理.
In this paper, experimental results of mechanical behavior on diagonal sections of two-stage loading RC continuous composite beams and those of one-stage loaded ones are presented.The tests show that there exist the precompres-sion zones, which were induced by the 1st-stage loading, in shearing spans of the web of two-stage loading composite beams. The effects of these zones on the mechanical behavior and failure mode on the diagonal sections and the mechanism of improving the shear capacities due to these zones are discussed as well.
出处
《土木工程学报》
EI
CSCD
北大核心
1994年第2期65-74,共10页
China Civil Engineering Journal
