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Before Wallenda Walked Tightropes, Engineers Studied Chicago Skyscrapers

机译：在Wallenda走钢丝之前，工程师研究了芝加哥摩天大楼

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摘要

On November 2 when the famed acrobat Nik Wallenda stepped out onto a steel cable that had been stretched between two Chicago skyscrapers, he stood in the windy night air roughly 600 ft above the Chicago River without a net or a harness to protect him. But as he successfully completed his tightrope act as part of a Discovery Channel television special, Wallenda was not completely vulnerable. In addition to his own experience and training and the professional crew that assisted him, the 35-year-old aerialist benefited from careful preparation that included the expertise of engineers from Thornton Tomasetti's Chicago office. These engineers had examined the rooftop locations on each of the three buildings at which the tightrope setups were secured to confirm that the sites could accommodate the additional loads that would be imposed. Wallenda walked along one tightrope to the second building and then along a second tightrope to the third building. The engineers also examined the locations on these buildings and on several nearby buildings at which certain stabilizing guy wires were connected, as well as the scaffolding, platforms, and additional cables that supported cameras, lighting, and other equipment used during the event.
机译：11月2日，著名的杂技演员尼克·沃伦达（Nik Wallenda）跨过两条芝加哥摩天大楼之间延伸的钢缆，他站在有风的夜空中，距离芝加哥河约600英尺，没有网罩或安全带保护他。但是当他成功地完成了自己作为探索频道电视特辑的一部分的走钢丝行为时，瓦伦达并不完全脆弱。除了他自己的经验和培训以及为他提供帮助的专业工作人员之外，这位35岁的空中飞人还得益于精心准备，包括桑顿·托马塞蒂芝加哥办事处工程师的专业知识。这些工程师检查了三座建筑物中固定有绳索设置的每座建筑物的屋顶位置，以确认这些位置可以承受可能施加的额外负载。瓦伦达（Walenda）沿着一条走钢丝走到第二座大楼，然后沿着第二座走钢丝走到第三座大楼。工程师们还检查了这些建筑物以及附近几处建筑物上连接某些稳定拉线的位置，以及脚手架，平台和支持活动中使用的摄像头，照明设备和其他设备的其他电缆。

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  • 来源
    《Civil Engineering》 |2015年第1期|24-27|共4页
  • 作者

    ROBERT L. REID;

  • 作者单位
  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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