Creep Effects on Simply Supported Prestressed Concrete Box Girder of High-Speed Railway with Ballastless Tracks-Reference-Cited by-同舟云学术

Creep Effects on Simply Supported Prestressed Concrete Box Girder of High-Speed Railway with Ballastless Tracks

Published:2012-11 Issue: Volume:238 Page:733-737
ISSN:1662-7482
Container-title:Applied Mechanics and Materials
language:
Short-container-title:AMM

Author:

Fang Wang¹,Han Bing¹,Yang Shao Kun¹

Affiliation:

1. Beijing Jiaotong University

Abstract

Creep will lead to increasing deflection of prestressed concrete girder, which may induce rails uneven, especially to ballastless tracks in high-speed railways. In this paper, two creep models, CEB-FIP90 and ACI209, were used in a finite element model to analyze influences of creep on simply supported prestressed concrete box girders which are used in high-speed railway in China. Sensitivity analysis was carried on towards curing age, secondary dead load, loading time and prestressing method on deformation of the girder. The results show creep should be controlled in engineering to ensure driving security.

Publisher

Trans Tech Publications, Ltd.

Link

https://www.scientific.net/AMM.238.733.pdf

Reference11 articles.

1. G. Zhao, The Structure of High-speed Railway with Ballastless Tracks, China Railway Press, Beijing, (2006).

2. F. Guo, The structure of passenger dedicated line with ballastless tracks, Railway Standard Design, (2006).

3. Z. Zeng, The technology of passenger dedicated line with ballastless tracks I, Railway Construction Technology, (2005).

4. Z. Zeng, The technology of passenger dedicated line with ballastless tracks II, Railway Construction Technology, (2005).

5. M. Xu, F. Wang, The study of the deflection of simply supported prestressed concrete box beam used in railway bridge based on statistical analysis, China Railway, 11 (1999).

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