摘要
结合工程实例详细论述了部分预应力混凝土宽扁梁的设计计算方法,分析了部分预应力混凝土结构的承载力、抗裂及变形性能,并考虑了次内力对结构的影响和施工阶段预拉区混凝土应力的控制,显示了部分预应力混凝土宽扁梁在转换层结构中应用的优越性。
The design calculation method for wide - flat - beam of partially prestressed concrete was described in combination with practical engineering example, the bearing capacity, anti- crack and deformation performance of the partially prestressed concrete structure were analyzed, the effect of secondary internal force on structure and control of concrete stress in pretension area at construction stage were considered, and the advantage of application of partially prestressed concrete in conversion layer structure was revealed.
出处
《工程建设》
2008年第2期32-36,45,共6页
Engineering Construction
基金
广西自然科学基金资助项目(桂科自0447095)
广西教育厅项目(桂教科研[2004]20号)
关键词
部分预应力
宽扁梁
计算方法
转换层
partially prestress
wide - flat beam
calculation method
conversion layer
