摘要
通过考虑铰接变截面山形门式刚架拱效应的影响,把楔形变截面梁柱等效成等截面梁柱,然后分别确定柱的计算长度、梁端内力和临界荷载,得出考虑拱效应作用下的铰接变截面山形门式刚架的计算长度系数是增大的、梁端内力和变截面柱的临界荷载是减小的结论.此结论与实践中得出的结论相吻合.
By considering the effect on arch effect of variable cross-section hinged door frame,variable cross-section beam and column are converted to the same section ones,and then to determine the calculating length of the beam and the internal forces of beam end and critical load these results are got that,considering the arch effect the length coefficient of the variable cross-section hinged door frame increases,and the internal forces of beam end the critical loads of the variable cross-section reduce.These resu...
出处
《华北水利水电学院学报》
2008年第5期43-45,共3页
North China Institute of Water Conservancy and Hydroelectric Power
关键词
铰接变截面山形门式刚架
塑性铰
等效截面惯性矩
计算长度系数
临界荷载
variable cross-section hinged door frame
plastic hinger
cross-section moment of inertia
calculating the length of coefficient
critical load
