中国国际丝路中心地下室结构设计创新

ZhongJun Yu, Jianfeng Wang, Zhibing Zou
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引用次数: 0

摘要

对于高度超过 400 米的超高层建筑而言,地基差异沉降控制是结构设计中的一个关键环节。在以往的工程案例中,除了地基或桩基可以直接支撑在基岩上外,一般都采用地下室翼墙来协调周边柱与核心筒之间的地基差异沉降。然而,翼墙也可能对地下室的使用产生负面影响。本文研究并比较了布置地下室翼墙和调整桩长对地基差异沉降的影响。考虑到桩、地基和上部结构之间的相互作用,提出了调整桩长的方案来控制地基的差异沉降,并验证了取消地下室翼墙的有效性。随后,开发了一套计算程序,可按区域自动优化桩长。最后,上述成果被应用于中国国际丝路中心大厦项目,该项目建筑高度为 498 米,是中国位于非岩层且无地下室翼墙的最高建筑。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Basement structural design innovation of China International Silk Road Center
For super high‐rise buildings with a height of more than 400 m, differential settlement control of foundation is a crucial aspect in structural design. In previous engineering cases, except that the foundation or piles can be directly supported on bedrock, basement wing walls were commonly used to coordinate the differential settlement of foundation between the perimeter columns and the core. However, wing walls could also have negative effects on the basement usage. This article studied and compared the effects of arranging basement wing walls and adjusting pile length on differential settlement of the foundation. The scheme of adjusting pile length considering the interaction between piles, foundation, and superstructure was proposed to control differential settlement of the foundation, and the effectiveness of canceling basement wing walls was verified. Subsequently, a calculation program was developed to automatically optimize pile lengths by region. Finally, the above achievements were applied to the project of China International Silk Road Center Building with a building height of 498 m, making it the tallest building in China located on nonrock stratum and without basement wing walls.
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