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首页> 外文会议>Engineers Society of Western Pennsylvania Annual International Bridge Conference; 20070604-06; Pittsburgh,PA(US) >Unique Bridge Type Selection for Two New Ohio River Bridges
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Unique Bridge Type Selection for Two New Ohio River Bridges

机译：两种新的俄亥俄河桥梁的独特桥梁类型选择

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摘要

This paper describes the unique bridge type selection process employed on the Louisville Southern Indiana Ohio River Bridges Project for two new major complex bridges, one downtown and one several miles east of the city. This process strived to go beyond the traditional methods of bridge type selection by soliciting and intelligently evaluating the public's preferences on key characteristics of global bridge aesthetics, such as height, symmetry, visual complexity, etc. This process was progressive in that it avoided the conventional "beauty contest" approach, while still being controlled by engineers so as to maintain budget and feasibility compliance. A set of guidelines focusing on aesthetics and context sensitivity was developed, along with renderings and simulations in the site context, to ensure that concepts addressed the contextual concerns of the stakeholders. Concepts were enhanced at several steps in the process, by incorporating preferences learned through the unique polling process. This resulted in final alternatives that maximized preferences on key contextual characteristics, providing the selection committee the following final concepts with high confidence in public acceptance: Downtown: 1. Single Tower Cable Stay 2. Three Tower Cable Stay 3. Three Span Thru Arch East End: 1. Diamond Tower Cable Stay with Outside Cables 2. Needle Tower Cable Stay with Outside Cables 3. Needle Tower Cable Stay with Median Cables We believe this is the first application of preference polling to major bridge selection, and introduces a new and extremely useful technique to help the designer deliver desirable context sensitive solutions to an increasingly demanding public.
机译：本文描述了路易斯维尔南部印第安纳州俄亥俄河桥梁工程中使用的独特桥梁类型选择过程，该过程用于两座新的大型复杂桥梁，其中一处位于市中心，而另一处位于城市以东几英里处。该过程通过征求并智能地评估公众对全球桥梁美学的关键特征（例如高度，对称性，视觉复杂性等）的偏好，力图超越传统的桥梁类型选择方法。该过程具有进步性，因为它避免了传统的桥梁选择方法。 “选美比赛”的方法，同时仍由工程师控制，以保持预算和可行性合规性。制定了一套侧重于美学和上下文敏感性的指南，以及现场上下文中的渲染和模拟，以确保概念解决了利益相关者的上下文问题。通过合并通过独特的轮询过程获得的首选项，可以在过程的多个步骤中增强概念。这导致了最终的选择方案，该方案最大程度地提高了对关键上下文特征的偏好，从而为选拔委员会提供了以下最终概念，并在公众接受度方面充满了信心：市区：1.单塔斜拉桥2.三塔斜拉桥3.三跨拱东端：1.带有外部电缆的钻石塔电缆撑杆2.具有外部电缆的针塔电缆撑杆3.具有中间电缆的针塔电缆撑杆我们相信这是优先轮询在主要桥梁选择中的首次应用，并引入了一种新的且非常有用的方法技术，以帮助设计人员为日益增长的公众提供理想的上下文相关解决方案。

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