塔式起重机预期寿命.docxVIP

塔式起重机预期寿命TOWER CRANE LIFE EXPECTANCY 塔式起重机预期寿命AN EXAMINATION OF RECENT TRENDS TO ESTABLISH AGE LIMITS 对最近确定年龄限制的趋势的研究 Over the past decade there have been increased discussions and attempts around the world to set and/or legislate a maximum service life of tower cranes, and in some cases mobile cranes based solely on their age. As a result of the recent publication Crane Accidents: A Study of Causes and Trends to Create a Safer Work Environment, 1983-2013, Jim D. Wiethorn, P.E., the Specialized Carriers and Riggers Association (SCamp;RA) approached Haag Engineering Co. to evaluate and compare the basis of these claims to our experience in crane accident analyses and Crane Study results. SCamp;RA submitted questions which their membership wanted addressed that relate specifically relate to the ages of the cranes. As part of our analysis, we examined the Crane Study results with respect to the crane ages at the time of the incidents to the actual causative factors of the accidents, with an emphasis on tower cranes. Additionally, we researched and addressed a variety of issues raised in support of and rebuttal to proposals for regulations in various parts of the world. The purpose of this analysis was to determine if any correlation exists between crane accidents and ages of cranes, to evaluate whether basis for these claims would suggest an age limit for such equipment. 在过去的十年里，世界范围内越来越多的讨论和尝试设定塔式起重机的最大使用寿命和/或 立法，在某些情况下，移动式起重机仅基于其年龄。根据最近出版的《起重机事故：创造更 平安工作环境的原因和趋势研究》，Jim D.Wietorn , P.EO,专业运输公司和起重工协会 (SCamp;RA)与哈格工程公司(Haag Engineering Co.)接洽，评估并比拟这些索赔的依据 与我们在起重机事故分析和起重机研究结果方面的经验。SCamp;RA提交了他们的成员希 望解决的问题，这些问题与起重机的年龄有关。作为我们分析的一局部，我们检查了起重机 研究结果，从事件发生时起重机的年龄到事故的实际原因，重点是塔式起重机。止匕外，我们 研究并处理了在世界各地支持和反驳监管建议的各种问题。本分析的目的是确定起重机事故 与起重机使用年限之间是否存在任何相关性，以评估这些索赔的依据是否会建议此类设备的 使用期限。 HISTORICAL RESEARCH历史研究 The earliest known policy to stipulate calendar ages of cranes as a limit to their service lives was enacted in Singapore during October 2006, although development of the regulation fi