无粘结预应力扁梁密肋楼盖施工阶段测试及分析  

Measurement and Analysis of Unbonded Prestressed Concrete Flat Beam-Waffle Slab System

作　　者：金惠兴 孙海[2] 

机构地区：[1]上海烟草(集团)公司 [2]同济大学

出　　处：《中国科技信息》2006年第11期93-96,共4页China Science and Technology Information

摘　　要：在无粘结预应力扁梁-密肋楼盖体系的预应力张拉过程中,对楼板的变形、预应力混凝土梁的变形和应变进行了现场测试,分析表明楼盖体系中建立了有效的预应力效应,并指出楼板平面内刚度对扁梁中的预应力效应有较大影响。During the presstressing of the unbonded prestressed concrete wide flat beam-waffle slab system,the displacements and strains of slab and the prestressed concrete beams were site-measured.The analyzed results indicate that there was satisfactory prestressing efficiency buits up in unbonded prestressed concrete wide flat beam-waffle slab system and the prestressing efficiency in the flat beams was greatly affected by the in-plane stiffness of slab.

关 键 词：无粘结预应力混凝土 扁梁-密肋楼盖 现场测试 预应力效应 

分 类 号：TU757[建筑科学—建筑技术科学] TU225