摘要
稳定缩动问题是充分发挥Ｕ型钢可缩性支架承载能力的关键。本文给出了Ｕ型钢可缩性支架的缩动条件，讨论了卡缆预紧力对支架抗缩动能力的影响以及支架在缩动过程中抗缩动能力的变化等问题。
Constant yielding of U steel ribs is a key to bringing load-carrying capacity into full play.The paper gives yielding conditions and discusses the influence of pre-tension of clamps on yieldable capacity of the U-steel and change of yieldable capacity in the process of yielding.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1994年第3期270-277,共8页
Journal of China Coal Society
关键词
承载能力
压缩性
金属支架
yieldable support, yielding condition, pre-tension of clamp, carrying capacity
