Share Email Print
cover

Proceedings Paper

Strain monitoring of dual-room box-girder during prestressing tension based on fiber Bragg grating sensor
Author(s): Dansheng Wang; Tao Jin; Hongping Zhu; Weiping He; Ming Li
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Monitoring techniques based on fiber Bragg grating sensor have proved to exhibit meaningful benefits when compared with the current solutions of an electric nature in recent years. In this study, several fiber Bragg grating (FBG) strain sensors were embedded into a prestressed concrete dual-room box-girder when construction at a prefabrication workshop to monitor strain of concrete girder during prestressing tension. All FBG sensors are alive during monitoring, which shows the advantages of robust surviving capability and long-term on-line monitoring performance. From the monitoring results it is found that the variances in strain at the measurement sites are small and almost is linear with time in certain one tension process, and the strain at the measurement sites almost synchronously and linearly change with the increase of the prestress. It is also found that the changes in strain at the measurement sites during the final tension are larger than that during the early tension.

Paper Details

Date Published: 13 April 2012
PDF: 8 pages
Proc. SPIE 8409, Third International Conference on Smart Materials and Nanotechnology in Engineering, 84092P (13 April 2012); doi: 10.1117/12.923173
Show Author Affiliations
Dansheng Wang, Huazhong Univ. of Science and Technology (China)
Shenzhen Oceanpower Industrial Co., Ltd. (China)
Tao Jin, Huazhong Univ. of Science and Technology (China)
Hongping Zhu, Huazhong Univ. of Science and Technology (China)
Weiping He, Shenzhen Oceanpower Industrial Co., Ltd. (China)
Ming Li, Shenzhen Oceanpower Industrial Co., Ltd. (China)


Published in SPIE Proceedings Vol. 8409:
Third International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Yoseph Bar-Cohen; In Lee; Jian Lu, Editor(s)

© SPIE. Terms of Use
Back to Top