Local Stress Analysis and Corner Radius Optimization of PPSCB

Wen Xiong Huang; Li Ying Tan

doi:10.4028/www.scientific.net/AMM.405-408.1221

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 405-408Local Stress Analysis and Corner Radius...

Local Stress Analysis and Corner Radius Optimization of PPSCB

Abstract:

To research the local stress state of the polyline pretensioned beams, the 3-D nonlinear finite element model is established by FEA software ANASYS. The results show that the existence of the inflection point on the prestressed reinforcement is the main reason of local stress distribution, and the corner radius R is the primary influential factor of the local stress distribution phenomenon. Then, the variation law of the stress and stress distribution by the corner radius R is illustrated clearly. With the increasing of R, the maximum local stress has decreased, and the stress distribution curve has increasingly become smoothly and gently. Considered the variation law of local stress and various of construction requirement in engineering practice, R=600mm is selected as the optimal radius.

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Periodical:

Applied Mechanics and Materials (Volumes 405-408)

Pages:

1221-1224

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.405-408.1221

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Online since:

September 2013

Authors:

Wen Xiong Huang*, Li Ying Tan

Keywords:

Finite Element Analysis (FEA), Improvement of Stress State, Optimization of Corner Radius R, Polyline Pretensioned Beams (PPSCB), Prestressed Concrete, Stress Analysis

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References

[1] W. X. Huang, Research on the mechanical properties of polyline pretensioned beams with new bend component, Ph.D. Dissertation, Huazhong University of Science & Technology, Wuhan, China(2012). In Chinese.

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DOI: 10.4028/www.scientific.net/amm.178-181.2179

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