Paper Title:
A Finite Element Analysis on Mechanical Property of Externally Strengthened Prestressed Box Beams
  Abstract

The mechanical property of external prestressed beams is affected by many parameters. Based on experimental study on externally strengthened prestressed box beams, a three-dimensional finite element analysis model was built in ANSYS. The calculation results was proved to be correct by being compared with experimental results. The effect of some parameters on deflection and stress in externally strengthened box beam was deeply analyzed in serviceability stage and ultimate status. The study shows that different original status of strengthened beam may affect the deflection and stress in different degree. The parameters change, such as effective prestress, concrete strength, the area and depth of external tendons and displacement coupling character for contact node, will result in a little difference in deflection and stress in serviceability stage, but obvious in ultimate status. For box beams in the model, changing the tendons lateral distance to the web results in litlle change in deflection and stress. No matter it is inside or outside the box at cross section.

  Info
Periodical
Edited by
Yanwen Wu
Pages
790-796
DOI
10.4028/www.scientific.net/AMR.187.790
Citation
R. X. Wang, H. J. Li, "A Finite Element Analysis on Mechanical Property of Externally Strengthened Prestressed Box Beams", Advanced Materials Research, Vol. 187, pp. 790-796, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yu Deng, Jiong Feng Liang
Abstract:Concrete beams reinforced with fiber reinforced polymer(FRP)bars exhibit large deflections and crack widths as compared to concrete beams...
2182
Authors: Dan Ying Gao, Yu Bin Zhu
Chapter 2: Frontiers of Building Materials
Abstract:To study flexural performance of one-way slabs externally prestressed with GFRP tendons, a series of experiments were carried out....
988
Authors: Yu Xu Zhang
Chapter 2: Structural and New Functional Materials
Abstract:The reinforced RC girder with external prestress is applied more and more widely. Reinforcement of the girder is influenced by various...
374
Authors: Zhe An Lu, Xin Jin, Xiao Chun Fan
Chapter 3: Civil Engineering
Abstract:The stress behavior of the reinforced inorganic polymer concrete(IPC) beam was discussed, included the load-deflection curve, craze load and...
891
Authors: Arezki Adjrad, Youcef Bouafia, Mohand Said Kachi, Hélène Dumontet
Chapter 5: Building Materials and Technologies in Construction
Abstract:In this paper, we present an analytical model to analyze reinforced and prestressed concrete beams loaded in combined bending, axial load and...
379