Bending Characteristics of a Post-Tensioned, Prestressed Concrete, Simply Supported Beam
Qingming Xiang1, Youliang Yang1, Jiaxuan Su1, Tianshu Yang1, Xuansheng Cheng2, *
Identifiers and Pagination:Year: 2017
First Page: 676
Last Page: 684
Publisher Id: TOCIEJ-11-676
Article History:Received Date: 28/5/2017
Revision Received Date: 13/7/2017
Acceptance Date: 19/7/2017
Electronic publication date: 22/08/2017
Collection year: 2017
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
To analyze the basic, mechanical properties of post-tensioned, prestressed concrete, simply supported beams with grouting material of varied porosity under load, a finite element model is established by using ANSYS finite element software.
The mid-span, cracking deflection and the equivalent stress of the prestressed, concrete beams with grouting material of varied porosity are calculated under different load forms.
Results and Conclusion:
The analysis results show that the cracking deflection of the prestressed, concrete beams increases with the increase in the porosity of the grouting material of the beams under different load forms. By contrast, under the same porosity grouting material, the cracking deflection of the symmetrical loads is larger than that of the uniform and concentrated loads. As the porosity of the grouting material increases, the peak value of equivalent stress decreases. The equivalent, stress-peak value of the concentrated load is always larger than the equivalent, stress-peak value under the uniform and symmetrical loads.