郑伟国
    （深圳市建筑设计研究总院，深圳 518031）

[摘要] 广场及懿德轩为框架-抗震墙钢筋混凝土结构，柱间跨度达17.2~25. 8m，最大悬臂超12m，梁高仅为650~ 700mm，通过采用预应力和变宽度梁实现，效果良好。地基为微风化岩，独立柱基和地下室底板直接与基岩浇筑，较经济地解决了抗浮和由于地下室底板面积过大而开裂的问题。
[关键词] 结构设计；钢筋混凝土结构；大悬臂；大跨度；预应力；岩石基础
中图分类号：TU242  文献标识码：A  文章编号：1002-848X(2011) Sl-0458-03

Structural design of Shenzhen Wisdom Plaza and Yidexuan
    Zheng Weiguo
    ( Shenzhen General Institute of Architectural Design and Research,  Shenzhen 518031,  China)

Abstract: Shenzhen Wisdom Plaza and Yidexuan adopt reinforced concrete frame-wall structure, with its beams span between 17.2 t0 25.8 meters, the largest cantilevers over 12 meters, and the height of beams only 650-700mm. It aclueves high efficiency by employing prestressed beams with variable width. The subgrade is based on less-weathered rock. Moreover, several unique designs, including the independent bases for columns and the basement floor poured directly with the bedrock, together provide a highly economical solution to the problems of floating and cracking due to large basement area.
Keywords: structural design; reinforced concrete structure; large cantilever; large span; prestressed; rock foundation