隔震结构抗倾覆可靠度影响因素分析
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摘要
隔震结构从某种意义上讲,是一种上部结构与基础“分离”的结构.在没有设计抗拉装置的情况下,其抗倾覆力矩全部由自重来承担,讨论其抗倾覆可靠度在某些情况下更有实际意义.文中首先确定隔震结构倾覆的极限状态方程,进而推导出倾覆可靠度公式.最后通过一个具体的例子,讨论隔震结构在没有抗拉装置的情况下,影响其倾覆可靠度的一些因素.
Isolation structure or vibration isolating structure is in some sense a structure isolating the upper structure from the foundation. In a condition of lacking the design of tensile device and all the anti-overturning moment is held by dead weight, to discuss the anti-overturning reliability is of even more practical significance. To this end, the authors determine firstly the limiting state equation for the over-turning of isolation structure; and secondly, infer the formula of anti-overturning reliability; and finnally, discuss by exemplification the factors influencing anti-overturning reliability of isolation structure in the condition of lacking the design of tensile device.
引文
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    5赵国藩,曹居易,张宽权.工程结构可靠度[M].北京:水利电力出版社,1984.47~49

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