预应力技术在斯里兰卡科伦坡电视塔设计中的应用  

The Application of Prestress Technology in the Design for Colombo Lotus Tower in Sri Lanka

作　　者：裘建东[1] 张红印[1] 丛蓉[1] 

机构地区：[1]中广电广播电影电视设计研究院,北京100045

出　　处：《特种结构》2014年第3期22-25,共4页Special Structures

摘　　要：通过斯里兰卡科伦坡电视塔工程介绍了预应力技术在钢筋混凝土电视塔应用的特点,即预应力技术在塔身外筒、混凝土桅杆、基础底板及塔楼支撑结构中的使用情况。总结出预应力在电视塔设计中的应用不仅能够提高结构抗裂性能和耐久性,同时还能提高结构的整体性,改善结构的受力状态,减少施工缝对塔身的不利影响。Based on Colombo Lotus Tower Project in Sri lanka, the features of prestress application in reinforced concrete tower are introduced including the prestress in tower body, the mast, the foundation slab and the base of the tower house. The application of prestress in concrete tower not only could improve crack resistance, endurance and integrity of the structure, but also could make the stress state better and reduce the influence of the construction joints.

关 键 词：塔身 塔座 塔楼 桅杆 竖向预应力 环向预应力 

分 类 号：TU347[建筑科学—结构工程]