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首页> 外文会议>Fifth ACI International Conference on Innovations in Design with Emphasis on Seismic, Wind, and Environmental Loading; Quality Control and Innovations in Materials/Hot-Weather Concreting Dec, 2002 Cancun, Mexico >Parcel 6 Development Central Artery/Tunnel Project, Boston, Massachusetts
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Parcel 6 Development Central Artery/Tunnel Project, Boston, Massachusetts

机译：位于马萨诸塞州波士顿的Parcel 6开发中心动脉/隧道项目

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摘要

Completion of the Central Artery/Tunnel Project includes development of more that 20 distinct parcels along the original, elevated artery corridor. This paper presents challenges encountered during the design of Parcel 6, which is located between New Chardon and Sudbury Streets in Boston, Massachusetts. The Parcel 6 lid will cover five adjacent cast-in-place concrete boat section ramps. The final use of the lid is not yet known; however, since construction of the ramps is currently underway, the walls were re-designed to accommodate either a landscaped deck, or a five-story building. Design included both wind and seismic lateral analyses of the two types of potential lid structures, with the reinforcing in the ramp walls modified to accommodate both options in order to minimize impacts or retrofits required in the future. Changes to the original design included modifying wall heights and reinforcing, and inclusion of interim backwalls for temporary earth support. The landscaped option included preliminary designs of four separate deck structures, skewed portal beams, overhead impact attenuators, and a merge gore area. The building option presumed asymmetrical column loadings and locations, with a comparative analysis of column base shears used to determine maximum loading on the existing ramp walls.
机译：中央动脉/隧道项目的完成包括沿着原始的高架动脉走廊开发20多个不同的包裹。本文介绍了位于马萨诸塞州波士顿New Chardon和Sudbury街之间的6号地块的设计过程中遇到的挑战。包裹6的盖子将覆盖五个相邻的现浇混凝土船段坡道。盖子的最终用途尚不清楚；但是，由于目前正在建造坡道，因此对墙壁进行了重新设计，以容纳景观美化的甲板或五层楼的建筑物。设计包括对两种类型的潜在盖结构的风向和地震侧向分析，对坡道壁的加固进行了修改以适应这两种选择，以最大程度地减少将来所需的冲击或翻新。对原始设计的更改包括更改墙的高度和加固，并包括用于临时土方支撑的临时后墙。绿化方案包括四个独立甲板结构的初步设计，倾斜的门形梁，高架冲击衰减器和合并戈尔区。该建筑方案假定了不对称的柱荷载和位置，并通过对柱基础剪的比较分析来确定现有斜坡墙的最大荷载。

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