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首页> 外文会议>Structural Engineers Association of California(SEAOC) Convention; 20040825-28; Monterey,CA(US) >CalPERS Headquarters Expansion
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CalPERS Headquarters Expansion

机译：CalPERS总部扩建

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摘要

This paper discusses several unique features and challenges addressed during the design of the $250 million CalPERS Headquarters Expansion Project. Covering two full blocks in Sacramento, this project contains two levels of below-grade parking supporting separate four-story and six-story buildings. Other features include a six-story, cable-stayed glass-enclosed pavilion, two-level pedestrian bridge, 4th Street passing through on Level One and a vehicle/pedestrian tunnel under Q Street. The owner's need for two levels of parking below grade, a site water table variation potential of about 14 feet and the inability to use conventional site dewatering techniques presented some unique design and construction challenges. 100-foot deep cutoff walls around the site were required to accomplish construction of the below-grade portion of the structure and 700 high-strength tiedown anchors were required to prevent flotation of the building during high-level stages of the water table.
机译：本文讨论了在2.5亿美元的CalPERS总部扩建项目的设计过程中解决的几个独特功能和挑战。该项目覆盖萨克拉曼多的两个完整街区，包含两层的地下停车场，分别支持四层和六层的建筑物。其他功能还包括一个六层的斜拉式玻璃封闭凉亭，两层人行天桥，穿过第一层的第四街和位于Q街下的车辆/行人隧道。业主需要在地下停车两层，场地地下水位变化潜力约为14英尺，并且无法使用传统的场地脱水技术提出了一些独特的设计和施工挑战。要完成该结构的地下部分的施工，需要在该场地周围安装100英尺深的防渗墙，并需要700个高强度的系紧锚，以防止建筑物在地下水位较高阶段浮起。

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