摘要
对一典型单层大跨度预应力混凝土住宅结构体系进行了结构的有限元计算分析,结果表明:预应力的施加较好地改善了楼板的受力状态,明显减小了楼板挠度,有效控制了裂缝的出现。板上施加预应力对梁、柱产生了有别于一般预应力框架结构的影响,总体偏于不利。由于板跨较大,竖向荷载使梁截面承受的扭矩较大。一字形边柱其两主轴方向抗侧刚度相差较大。
This paper provides finite element analysis of one typical large span prestressed concrete residence monolayer structure.The application of prestressing force favors the stress status of the floor slab,and obviously reduces the deflection of floor slab,and effectively postpones the appearance of crack.Different from the regular prestressed concrete frame,the application of prestressing force in floor slab produces unfavourable effect on the beam and the colume.Due to the large span of the floor slab,the moment torsion of the beam,under the vertical load,is obvious.The two principal axis resistance stiffness to lateral bending of the '一'-shaped colume is apparently different.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2004年第6期114-117,共4页
Journal of Chongqing University
基金
国家十五攻关课题"高性能钢筋混凝土大跨度预应力住宅结构体系"(200BA806B 4 1B)
关键词
预应力混凝土
大跨度住宅结构
受力性能
prestressed concrete
large span residence structure
stress performance
