Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Temperature effect on modal frequencies for a rigid continous bridge based on long term monitoring

[+] Author Affiliations
Lei Wang

Harbin Institute of Technology (China)

Jilin Hou

Dalian Univ. of Technology (China)

Jinping Ou

Harbin Institute of Technology (China) and Dalian Univ. of Technology (China)

Proc. SPIE 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011, 79830I (April 18, 2011); doi:10.1117/12.880430
Text Size: A A A
From Conference Volume 7983

  • Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011
  • San Diego, California, USA | March 06, 2011

abstract

Environment conditions such as temperature, humidity, traffic loadings and wind loadings cause changes in the identified dynamic properties of bridges, which will affect health diagnosis based on the mode frequencies in bridge structural health monitoring. This paper analyzed temperature effects on a rigid continuous bridge based on monitoring data from Aug. 2006 to Dec. 2006. First, temperature data calculating process from measured data is given and frequency time histories are graphed. Temperature effects on the bridge dynamic properties are divided into yearly temperature change and sunlight radiation. Then, theoretical eigenfrequency functions of a simply-supported uniform beam with and without axial force are provided to explain and distinguish temperature effects and constraints on characteristic frequencies. Relationship of measured temperature and frequencies data are drafted and linear correlations are found on the 1st and 3rd vertical frequencies. 2nd vertical frequency fluctuated cyclically in one day, caused by sunlight radiation and restrains.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Lei Wang ; Jilin Hou and Jinping Ou
"Temperature effect on modal frequencies for a rigid continous bridge based on long term monitoring", Proc. SPIE 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011, 79830I (April 18, 2011); doi:10.1117/12.880430; http://dx.doi.org/10.1117/12.880430


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.