摘要
本文通过4榀钢筋砼门式刚架在周边倚载下的试验,对框架弯矩调幅设计后的性能进行了研究,并对试件做了非线性全过程分析。此外,利用线性规划方法对框架的极限荷载进行了计算。计算结果表明,本文所建立的数学模型,可考虑轴力作用以及剪切破坏情况,并可准确地计算结构的极限荷载。
Through the testing of 4 reinforced concrete portal frames under peripheral loading, the degree of moment redistribution, the axial force influence on the limit loading as well as the behavior of frames after elastic moment adjustment have been investigated, with the full-range in elastic analysis being carried out. Besides, a limit analysis method using linear programming was presented. In this method, the static equilibrium functions include these variable quantities, i.e.moment, shear and axial force in critical sections. In comparison with experimental results, not only the limit loading of frame could be accurately calculated, but also the failure mechanismof frame could be easily determined.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
1991年第6期53-61,共9页
Journal of Building Structures
