拆除爆破中裸露钢筋骨架的失稳模型  

Stability-Losing Model of Uncovered Reinforcing Bar in Demolish Blasting

作　　者：卢文波[1] 

机构地区：[1]武汉水利电力学院

出　　处：《爆破》1992年第2期31-35,共5页Blasting

摘　　要：拆除爆破中,框架承重立柱裸露铜筋骨架的失稳,并非单根主筋压杆失稳的简单的数学来迭加,其实质是一小型刚架的有侧向弹性约束的失稳。依此推导了具有一般性的裸露钢筋骨架的失稳临界荷载计算公式。This Paper Presents a new mechanics model on the loss stability of colums of Reinforced—concrete frame in demolition.This model suggsts that the steel frame worlc in colum should be taken as a elastically bound frame in horizontal direction. Furthermore,a formular caculating the load of loss stability in critical condition is derived,, The example in paper shows that the result of caculation with this formular under this special frame model is more truthful.

关 键 词：框架结构 失稳 拆除 爆破 

分 类 号：TU746.5[建筑科学—建筑技术科学]