摘要
根据弯曲变形平截面假定和钢筋与混凝土各自的材料本构关系推导了梁单元在偏心轴力作用下截面内力的计算公式,并将他们应用于单元构件从开始加载直至破坏的全过程分析,得出了截面弯矩M与截面转角φ之间的关系,提出了数值计算的步骤与方法并利用Matlab语言实现编程计算,得出了合理的计算结果。
A group of formula for computing internal forces in beam element subjected to a eccentric axial force was derived according to the general assumption of plain strain distribution and the constitute relation of the materials. The relationship between cross - section movement and its rotation angle was generated with the application of the formula to the full range analysis of the element from beginning of loading to destructing. The solution process was coded with MATLAB software and a desired result could be obtained.
出处
《河北理工大学学报（自然科学版）》
CAS
2010年第1期69-73,共5页
Journal of Hebei Polytechnic University:Social Science Edition
基金
国家自然科学基金资助项目(50778061)
河北省自然科学基金资助项目(E2008000392)
关键词
应变
屈服强度
本构关系
弯矩-曲率曲线
strain
yielding strength
constitutive relation
moment-curvature curve
