超长高层建筑的无缝设计实施及验证  

ACTUALIZATION AND VERIFICATION OF NO-JOINT DEISNG OF AN OVER-LONG TALL BUILDING

作　　者：李晨钟 嵇蔚冰 吴京[2] 

机构地区：[1]盐城市建筑设计研究院有限公司,盐城224002 [2]东南大学,南京210096

出　　处：《工业建筑》2008年第8期109-113,共5页Industrial Construction

摘　　要：结合某长103 m的高层病房楼工程,对其在环境温降和混凝土收缩下产生的温度、收缩应力进行有限元分析,提出解决温度、收缩应力的措施。通过利用合适的后浇带,提高预应力筋张拉效率,并结合施工过程及其后期的混凝土应力检测,验证温度和收缩应力分布的规律以及上述各种方法的有效性。By the no-joint design of a 103 m long sickroom building, it is analyzed the tensile stress caused by concrete shrinkage and temperature decreasing, also put forward a series of techniques to control the cracks. Post-poured strip was used to enhance the prestressing effect of steel bars. It is verified the distribution regularity of temperature stress and shrinkage stress and effectiveness of the above techniques by stress detecting during and after construction.

关 键 词：超长结构 无缝设计 收缩应力 温度应力 微膨胀剂 聚丙烯纤维 后浇带 预应力 

分 类 号：TU973[建筑科学—结构工程]