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过去对各种用途的钢丝绳和吊索所选用的安全系数相当混乱。近来提出了一些专用的、较为正式的规范或规定。现行安全系数的范围从2(回转钻机的连接套管上用)到11.90(乘客电梯上用)。本文介绍了关于钢绳安全系数的最新思想,包括了一些前末发表过的资料。确定安全系数,为的是使钢丝绳具有足够的最初强度同额定载荷的比值,来满足一定时间内的安全使用,并在换下时尚有一定的剩余强度,以免发生破断事故。另外,安全系数中
The safety factor used in the past for wire ropes and slings for various purposes has been quite confusing. Recently some specific and more formal codes or regulations have been proposed. The current safety factor ranges from 2 (Sleeve connection sleeve) to 11.90 (for passenger elevators). This article presents the latest thinking on rope safety factors, including some previously published data. To determine the safety factor, in order to make the wire rope has a sufficient initial strength with the rated load ratio, to meet the safety of use within a certain period of time, and in the fashion there is a certain residual strength, to avoid breaking accident. In addition, the safety factor