• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 27 Issue 1
Jan.  2014
Turn off MathJax
Article Contents
CHEN Bo, SUN Yuzhou, GUO Weihua. Experimental Investigation of Temperature Effects on Dynamic Characteristics of Reinforced Concrete Slab[J]. Journal of Southwest Jiaotong University, 2014, 27(1): 66-71. doi: 10.3969/j.issn.0258-2724.2014.01.011
Citation: CHEN Bo, SUN Yuzhou, GUO Weihua. Experimental Investigation of Temperature Effects on Dynamic Characteristics of Reinforced Concrete Slab[J]. Journal of Southwest Jiaotong University, 2014, 27(1): 66-71. doi: 10.3969/j.issn.0258-2724.2014.01.011

Experimental Investigation of Temperature Effects on Dynamic Characteristics of Reinforced Concrete Slab

doi: 10.3969/j.issn.0258-2724.2014.01.011
  • Received Date: 30 Nov 2012
  • Publish Date: 25 Jan 2014
  • Concrete structures are prone to solar radiation and environmental air changes, which may cause non-uniform temperature distribution and thereby induce changes in structural dynamic properties. An experimental model was constructed to conduct the measurement on time-varying temperature distribution and structural dynamic properties during a whole day. The temperature gradient and ambient temperature were tested by thermal sensors. A program package was developed on the basis of the modal analysis theory to identify the natural frequencies, mode shapes and damping ratios of the slab. The experimental results indicate that the structural natural frequencies were affected by temperature. If the temperature was increased by 1 ℃, the first-and second-order natural frequencies were decreased by 0.074 and 0.228 Hz, respectively.

     

  • loading
  • DOEBLING S W, FARRAR C R, PRIME M B. A summary review of vibration-based damage identification methods[J]. The Shock and Vibration Digest, 1998, 30(2): 91-105.
    SALAWU O S. Detection of structural damage through changes in frequency: a review[J]. Engineering Structures, 1997, 19(9): 718-23.
    陈波, 郑瑾, 王建平. 桥梁结构温度效应研究进展[J]. 武汉理工大学学报, 2010, 32(24): 79-83. CHEN Bo, ZHENG Jin, WANG Jianping. State of the art of the temperature effects of bridges[J]. Journal of Wuhan University of Technology, 2010, 32(24): 79-83.
    XIA Yong, CHEN Bo, WENG Shun, et al. Temperature effects on variation properties of civil structures: a review and case studies[J]. Journal of Civil Structural Health Monitoring, 2012, 2(1): 29-46.
    CHEN Bo, ZHENG Jing, WANG Jianping. Simulation on temperature distribution of composite bridge deck plate[J]. Advanced Materials Research, 2011, 156-157(1): 1455-1458.
    CHEN Bo, ZHENG Jiing, WANG Jianping. Temperature variation of concrete-steel deck plate under solar radiation[J]. Applied Mechanics and Materials, 2011, 44-47(1): 158-162.
    XU Youlin, CHEN B, NG C L, et al. Monitoring temperature effect on a long suspension bridge[J]. Journal of Structural Control and Health Monitoring, 2010, 17(6): 632-653.
    ADAMS R D, CAWLEY P, PYE C J, et al. A vibration technique for non-destructively assessing the integrity of structures[J]. Journal of Mechanical Engineering Science, 1978, 20(2): 93-100.
    ASKEGAARD V, MOSSING P. Long term observation of RC-bridge using changes in natural frequency[J]. Nordic Concrete Research, 1988, 7(1): 20-27.
    CORNWELL P, FARRAR C R, DOEBLING S W, et al. Environmental variability of modal properties[J]. Experimental Techniques, 1999, 23(6): 45-48.
    NAYERI R D, MASRI S F, GHANEM R G, et al. A novel approach for the structural identification and monitoring of a full-scale 17-story building based on ambient vibration measurements[J]. Smart Materials and Structures, 2008, 17(2): 1-19.
    PEETERS B, DE ROECK G. One year monitoring of the Z24-Bridge: environmental effects versus damage events[J]. Earthquake Engineering and Structural Dynamics, 2001, 30(2): 149-171.
    DESJARDINS S L, LONDONO N A, LAU D T, et al. Real-time data processing, analysis and visualization for structural monitoring of the confederation bridge[J]. Advances in Structural Engineering, 2006, 9(1): 141-157.
    MACDONALD J H G, DANIELL W E. Variation of modal parameters of a cable-stayed bridge identified from ambient vibration measurements and FE modelling[J]. Engineering Structures, 2005, 27(13): 1916-1930.
    EWINS D J. Modal testing-theory, practice and application[M]. Baldock: Research Studies Press Ltd., 2000: 20-45.
    KOTTEGODA N T, ROSSO R. Statistics, probability, and reliability for civil and environmental engineers[M]. New York: McGraw-Hill Companies, Inc., 1997: 185-202.
    XIA Yong, HAO Hong, ZANARDO G, et al. Long term vibration monitoring of an RC slab: temperature and humidity effect[J]. Engineering Structures, 2006, 28(3): 441-452.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Article views(1006) PDF downloads(635) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return