Techno Press
Techno Press

Smart Structures and Systems   Volume 13, Number 6, June 2014, pages 1015-1039
DOI: http://dx.doi.org/10.12989/sss.2014.13.6.1015
 
Integration of in-situ load experiments and numerical modeling in a long-term bridge monitoring system on a newly-constructed widened section of freeway in Taiwan
Yi-Tsung Chiu, Tzu-Kang Lin, Hsiao-Hui Hung, Yu-Chi Sung and Kuo-Chun Chang

 
Abstract     [Full Text]
    The widening project on Freeway No.1 in Taiwan has a total length of roughly 14 kilometers, and includes three special bridges, namely a 216 m long-span bridge crossing the original freeway, an F-bent double decked bridge in a co-constructed section, and a steel and prestressed concrete composite bridge. This study employed in-situ monitoring in conjunction with numerical modeling to establish a real-time monitoring system for the three bridges. In order to determine the initial static and dynamic behavior of the real bridges, forced vibration experiments, in-situ static load experiments, and dynamic load experiments were first carried out on the newly-constructed bridges before they went into use. Structural models of the bridges were then established using the finite element method, and in-situ vehicle load weight, arrangement, and speed were taken into consideration when performing comparisons employing data obtained from experimental measurements. The results showed consistency between the analytical simulations and experimental data. After determining a bridge\'s initial state, the proposed in-situ monitoring system, which is employed in conjunction with the established finite element model, can be utilized to assess the safety of a bridge\'s members, providing useful reference information to bridge management agencies.
 
Key Words
    bridge monitoring system; in-situ experiment; position sensitive detector
 
Address
Yi-Tsung Chiu:Department of Civil Engineering, National Taipei University of Technology, 1, Zhongxiao E. Rd. Sec. 3,
Taipei 106, Taiwan R.O.C.
Tzu-Kang Lin:Department of Civil Engineering, National Chiao Tung University, 1001, University Rd., Hsinchu 300, Taiwan R.O.C.
Hsiao-Hui Hung: National Center for Research on Earthquake Engineering, 200, Hsinhai Rd. Sec. 3, Taipei 10, Taiwan R.O.C.
Yu-Chi Sung:Department of Civil Engineering, National Taipei University of Technology, 1, Zhongxiao E. Rd. Sec. 3, Taipei 106, Taiwan R.O.C.;
National Center for Research on Earthquake Engineering, 200, Hsinhai Rd. Sec. 3, Taipei 10, Taiwan R.O.C.
Kuo-Chun Chang: National Center for Research on Earthquake Engineering, 200, Hsinhai Rd. Sec. 3, Taipei 10, Taiwan; R.O.C.
Department of Civil Engineering, National Taiwan University, 1, Roosevelt Rd. Sec. 4, Taipei 106, Taiwan R.O.C.
 

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