成都双流国际机场T2航站楼超长结构中预应力的应用  

Super-long prestressed structure of Chengdu Shuangliu International Airport T2 Terminal Building

作　　者：陈平友[1] 肖克艰[1] 陈志强[1] 王立维[1] 周振[1] 易丹[1] 

机构地区：[1]中国建筑西南设计研究院有限公司,成都610081

出　　处：《建筑结构》2010年第9期11-13,共3页Building Structure

摘　　要：成都双流国际机场T2航站楼结构设计中采用了超长混凝土框架结构体系,由于混凝土收缩及温度下降的影响,在结构中要产生拉应力,并可能使结构出现有害的贯通裂缝。设计中通过对楼层梁施加有粘结后张预应力来控制结构有害裂缝的开展。介绍了混凝土结构的收缩应力、温度应力的计算方法以及计算模型的建立情况。The super-long concrete frame structure was adopted for Chengdu Shuangliu International Airport T2 Terminal Building.Because of the shrinkage of concrete and fall of temperature,tensile stress may appear in the concrete structure and it can make cracks come forth.The design method of bonded post-tensioned prestressed in the beams was introduced which can control the development of bad crack.The shrinkage stress and temperature stress in the concrete structure were calculated.The calculation model for the tension process of the bonded post-tensioned prestressed structure was presented.

关 键 词：超长混凝土框架结构 预应力 混凝土收缩应力 温度应力 

分 类 号：TU757.14[建筑科学—建筑技术科学]