Analysis of the effectiveness of various cross-sections in large-span post-tensioned ceilings

2017 5th International Conference on Mechanical Engineering, Materials Science and Civil Engineering

机械制造;材料科学;土木建筑工程

Bednarz, K.^1

Cracow University of Technology, Poland^1

关键词: Compression stress;    Computational analysis;    Large span;    Post tensioned;    Post-tensioned concrete slabs;    Post-tensioned slabs;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/324/1/012045/pdf
DOI  :  10.1088/1757-899X/324/1/012045

来源: IOP

【 摘 要 】

The correct construction of large span, slim post-tensioned concrete slabs is conditioned by an appropriate cross-section selection. It is generally accepted that the thinnest slab can be constructed using the full cross-section as the largest compression stress storage. However, completely different cross-sections may help to overcome large spans. The paper presents the results of the computational analysis of several types of cross-sections (full, with internal relieving inserts and ribbed) in the application to a post-tensioned slab with a span of 15.0m. Based on the results presented, appropriate conclusions were drawn.