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Three Supertall Slender Towers in Midtown Manhattan
Structural Engineering International ( IF 1.1 ) Pub Date : 2021-05-24 , DOI: 10.1080/10168664.2021.1898297
Charles Besjak 1 , Preetam Biswas 1 , Georgi I. Petrov 1 , Yunlu Shen 1 , Bonghwan Kim 1 , Alexandra Thewis 1
Affiliation  

Abstract

One Manhattan West (1MW), Two Manhattan West (2MW) and 35 Hudson Yards (35HY) are three slender supertall towers recently designed and engineered by the authors' company that rise above the underground train tracks approaching New York City’s Penn Station on the west side of the island of Manhattan. Although the slender towers are neighbors and have similar heights and proportions, each tower resolves the constraints of the underlying tracks with unique structural approaches. The disparate below-ground conditions result in three distinct structural solutions that are all governed by the effects of the wind. All three towers were subjected to extensive wind tunnel testing programs in order to optimize their dynamic behavior. The structural system of 1MW is a reinforced concrete core and a perimeter steel moment frame. The site conditions prevent the perimeter of the 304-meter-tall tower from reaching the foundation. This challenge is addressed by sloping the perimeter columns to the core above the ground, thus making 1MW one of the slenderest structures in New York City. The structural system of 2MW consists of a central braced steel core with outrigger and belt trusses and a perimeter steel moment frame. Half of the core is undercut by train tracks; loads are strategically moved to the perimeter structure, which is tightly integrated with tracks below. 35HY is an all-concrete mixed-use tower where one of the main challenges was to align core wall and column placement with the spacing of the existing tracks below while trains continued to be operational.



中文翻译:

曼哈顿中城的三座超高层细长塔

摘要

曼哈顿西区一号(1MW)、曼哈顿西区二号(2MW)和哈德逊广场 35 号(35HY)是由作者公司最近设计和设计的三座超高层塔楼,耸立在通往西边纽约市宾州车站的地铁轨道之上曼哈顿岛的一侧。尽管细长的塔楼是相邻的并且具有相似的高度和比例,但每座塔楼都以独特的结构方法解决了底层轨道的限制。不同的地下条件导致三种不同的结构解决方案,它们都受风的影响。所有三座塔都经过了广泛的风洞测试计划,以优化它们的动态行为。1MW的结构体系是钢筋混凝土核心和周边钢框架。现场条件使 304 米高的塔的周边无法到达地基。这一挑战通过将外围柱倾斜到地面以上的核心来解决,从而使 1MW 成为纽约市最细长的结构之一。2MW 的结构系统由一个带有支腿和带桁架的中央支撑钢芯和一个周边钢矩框架组成。一半的核心被火车轨道削弱;负载被战略性地转移到周边结构,该结构与下面的轨道紧密结合。35HY 是一座全混凝土混合用途塔,其中主要挑战之一是在火车继续运行的同时将核心墙和柱子的放置与下方现有轨道的间距对齐。这一挑战通过将外围柱倾斜到地面以上的核心来解决,从而使 1MW 成为纽约市最细长的结构之一。2MW 的结构系统由一个带有支腿和带桁架的中央支撑钢芯和一个周边钢矩框架组成。一半的核心被火车轨道削弱;负载被战略性地转移到周边结构,该结构与下面的轨道紧密结合。35HY 是一座全混凝土混合用途塔,其中主要挑战之一是在火车继续运行的同时将核心墙和柱子的放置与下方现有轨道的间距对齐。这一挑战通过将外围柱倾斜到地面以上的核心来解决,从而使 1MW 成为纽约市最细长的结构之一。2MW 的结构系统由一个带有支腿和带桁架的中央支撑钢芯和一个周边钢矩框架组成。一半的核心被火车轨道削弱;负载被战略性地转移到周边结构,该结构与下面的轨道紧密结合。35HY 是一座全混凝土混合用途塔,其中主要挑战之一是在火车继续运行的同时将核心墙和柱子的放置与下方现有轨道的间距对齐。2MW 的结构系统由一个带有支腿和带桁架的中央支撑钢芯和一个周边钢矩框架组成。一半的核心被火车轨道削弱;负载被战略性地转移到周边结构,该结构与下面的轨道紧密结合。35HY 是一座全混凝土混合用途塔,其中主要挑战之一是在火车继续运行的同时将核心墙和柱子的放置与下方现有轨道的间距对齐。2MW 的结构系统由一个带有支腿和带桁架的中央支撑钢芯和一个周边钢矩框架组成。一半的核心被火车轨道削弱;负载被战略性地转移到周边结构,该结构与下面的轨道紧密结合。35HY 是一座全混凝土混合用途塔,其中主要挑战之一是在火车继续运行的同时将核心墙和柱子的放置与下方现有轨道的间距对齐。

更新日期:2021-05-24
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