（1 湖南大学土木工程学院，长沙 410082；2 重庆大学， 重庆 400044；3 湖南高岭建设集团股份有限公司，长沙 410153）

［摘要］对一种新型后装式密肋空心楼盖的弹性阶段变形进行了对比试验研究，分析了后装式预制底板对新型后装式密肋空心楼盖弹性阶段抗弯刚度的贡献。同时采用查表法和有限元法对新型后装式密肋空心楼盖肋梁的跨中变形进行了分析计算，并将计算结果与试验结果进行对比，验证了新型后装式密肋空心楼盖考虑预制底板弹性阶段抗弯刚度贡献的合理性，并给出了相应建议，可为新型后装式密肋空心楼盖体系的设计和应用提供参考。

［关键词］后装式; 密肋空心楼盖; 弹性刚度; 试验研究; 有限元分析

中图分类号：TU375.2       文献标识码：A       文章编号：1002-848X(2014)13-0009-06

Comparative experimental study and analysis on elastic deformation of a new type of post-constructed hollow-ribbed floor

Wu Fangbo1, Li Jun1, Zhou Xuhong1,2, Liu Biao1,3, Deng Libin1,3

 (1 College of Civil Engineering, Hunan University, Changsha 410082, China; 2 Chongqing University, Chongqing 400044, China; 3 Hunan Gaoling Construction Group Stock Limited Company, Changsha 410153, China)

Abstract: A comparative experimental study on the elastic deformation of a new type of post-constructed hollow-ribbed floor was conducted. The elastic flexural stiffness contribution of post-constructed precast slabs on the new type of floor was studied. Look-up table method and finite element method were used to calculate the mid-span deformation of the rib beam of the floor and calculation results were compared with the experimental results to verify the rationality of considering the elastic flexural stiffness contribution of precast slabs on the new type of floor. The corresponding recommendations were given, which can provide reference for the design and application of the new type floor system.

Keywords: post-constructed; hollow-ribbed floor; elastic stiffness; experimental study; finite element analysis

*国家自然科学基金面上项目(51278179)，长沙市科技计划项目（K1205229-11）。

作者简介：吴方伯，硕士，教授，博士生导师，Email：wfbprof@163.com。

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