三迪·联邦大厦桩筏基础设计方法的比较
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（清华大学建筑设计研究院有限公司，北京 100084）[摘要] 本文结合三迪·联邦大厦桩筏基础的设计，分别采用倒楼盖法和弹性地基梁法进行计算，比较其优缺点，并在此基础上提出了改进有限元法。通过对三种方法的计算结果比较发现，改进有限元法既能够很好的模拟筏板的受力形态，又能得出更为经济、合理的配筋结果，是进行桩筏基础设计的有效手段。[关键词] 桩筏基础;倒楼盖法;弹性地基梁法;改进有限元法;整体弯曲中文分类号：318.5+.1 文献标识码：A 文章编号: 1002-848X(2013)S1-0863-05Compared to different piled raft foundation design methods of sandi.federal buildingZheng Yu, Meng Xia（Architectural Design and Research Institute of Tsinghuau University Co. , Ltd. , Beijing 100084, China）Abstract: By the way of Piled Raft Foundation design of Fuzhou Sandi•Federal building, Inverted floor calculation method and Elastic foundation beam method are introduced in this paper. It shows the advantages and disadvantages of those methods. Base on those methods, it gives Finite element method. Over the calculation results of these three methods found that Finite element method can rationally simulate force of the raft form. It also draw more economical and reasonable results of reinforcement. Therefore, it is an effective method for piled raft foundation design.Keywords: Piled raft foundation; Inver.ted floor calculation method; Elastic foundation beam method; Improved Finite element method; overall bending
