摘要
东营会展中心展馆主体采用钢筋混凝土框架结构,基础采用高强预应力管桩基础。展馆长约189m,属超长结构,结构设计中通过结构计算和设置后浇带、配置纵向构造钢筋和无粘结预应力钢筋等措施,减小了温度作用和收缩变形对钢筋混凝土结构的不利影响。计算结果表明,降温荷载在框架梁和楼板中产生较大拉应力,楼板开洞部位拉应力集中;温度作用在框架柱中产生剪力和弯矩,在框架柱和基础设计时必须考虑。
The structural system of Dongying Convention and Exhibition Center is the reinforced concrete frame and the foundation is prestressed concrete pipe piles.The total length is about 189m which means that the structure is a super long one.The adverse effect of temperature and shrinkage strain on the structure is reduced by structural calculations,setting alter-pouring strips,deploying vertical constructional steel bars and unbonded tendons.The calculation result indicates that the following effects must be con...
出处
《建筑结构》
CSCD
北大核心
2009年第7期9-12,共4页
Building Structure
关键词
大跨度屋盖
超长混凝土结构
温度作用
large-span roof
super long concrete structure
temperature effect
