摘要
对两榀两跨两层叠合框架试件（ＫＪ１，ＫＪ２）和一榀条件基本相同的整浇框架（ＫＪ３）进行了试验，用对比试验研究的方法，研究了叠合框架二次受力特性，证实了叠合框架梁的正弯矩钢筋“应力超前”，叠合层压区混凝土“应变滞后”的特性仍然存在。试验证明，同基本条件的前提下，叠合框架的承载力不会低于整浇框架。进而探讨了叠合框架的传力机构，提出了保证叠合框架节点整体性的构造措施。
Through the experiment with two compound frames which have two layers and two spans and with a poured frame in the mainly same conditions, by way of the comparative experiment, the two - stage load - supporting characteristics of compound frame has been studied. The results testify the speciality of the stress of reinforcing bar carrying positive bending moment ahead of the strain of superimposed concrete carrying pressure in the beams of compound frame. The experiments prove that the bearing capacity of compoud frame is not less than that of poured frame in the mainly same conditions. This paper discusses the passing - stress mechanism of compound frame, raise that the structural measure on how to ensure the entiretylism of the joints in compound frames.
出处
《长沙交通学院学报》
1996年第2期65-74,共10页
Journal of Changsha Communications University
基金
国家自然科学基金
