[提要]  合肥CBD中央广场工程为一大底盘多塔楼建筑，若按常规方法施工，则必须按《混凝土结构设计规
范》要求预留伸缩缝。但伸缩缝的留设会影响建筑物的使用功能。根据计算分析结果，在采取多项技术措施的前提下，取消了伸缩缝，解决了建筑功能和结构设计上的矛盾。
[关键词]  温度应力  收缩  预应力  大面积混凝土  基础  后浇带

The central plaza in Hefei CBD have 5 towers on the podium. The longitudinal and cross length of the podium is about 119.5m and 81.lm respectively. With the common construction method, the expansion joint should be preformed according to the concrete design code.  The existance of the expansion joint cannot satisfy operating requirement. Several technical measures, in response to the results of the analysis, are introduced to eliminate the expansion joint and the discrepancy between the usage and design code.
Keywords:  temperature stress; shrinkage; prestressed;  large acreage concrete; foundation; expansion joint

      参  考  文  献
1．林宝新．合肥CBD中央广场的整体分析．建筑结构，2004，34(8)．
2．王铁梦．上程结构裂缝控制中国建筑工业出版社，1999
3．韩重庆．大面积预应力混凝土梁板结构不设温度缝研究．博士学位论文，东南大学，2001．