【摘要】 采用改进的损伤指数模型,定量地描述了框架结构在地震作用下的倒塌破坏过程,应用所编制的M atlab语言程序,计算了框架结构构件及结构损伤指数。拟合了梁、柱及结构整体的损伤演化方程,研究了框架结构倒塌破坏的损伤演化规律。提出了以层数和时间为变量的梁和柱的双变量损伤演化方程。通过损伤指数的最佳拟合方程可见,结构整体损伤演化规律与柱子的损伤演化规律相同,均符合指数函数形式发展规律,符合"强柱弱梁"的设计原则。更多还原

【Abstract】 The improved damage exponential model was applied to describe guantitatively the collapse destruction process of framework structure under earthquake,and the damage indices of the structure and its components were calculated by suing the compiled language program Matlab.Fitting the damage evolution equation of the beams,columns and the overall structure,the damage evolution rule of the framework structure’s collapse destruction was researched.Taking the floor number and time as variables the dual variable damage evolution equation of the beam and column was proposed.Using the best fitting equation of damage index,it is known that the damage evolution rule of the whole structure is similar to that of the columns,and has an exponential development rule satisfying the "Strong column weak-beam" design principles.更多还原