Dynamic Response of Cable Stayed Bridge Pylon Subjected to Blast Loading

  • P. J. ShuklaEmail author
  • C. D. Modhera
Conference paper


After the terrorist attack of 2001, concern regarding possible terrorist attacks to important buildings and bridges are increased worldwide. In India, guidelines for blast load analysis of buildings are described in IS: 4994 and IS: 6922. However, there are no such guidelines available for bridges. In present study, typical bridge model of cable-stayed bridge proposed for Surat city, Gujarat, India is selected. The bridge having 300 m span and 23 m width is selected for blast load analysis. Blast pressure is calculated as per method described in TM-5-1300 . The blast pressure intensities are converted into quassi-static blast loading. The calculated blast load is applied at different heights on pylon and with varying standoff distances with different charge weights. The analysis of model was carried out using computer application SAP2000. Comparative results for various heights of explosion were obtained in form of various graphs for maximum bending moment, shear force for different standoff distances. The results were discussed in detail at the end of the paper.


Blast load Bridge pylon Cable stayed Dynamic analysis Mathcad Quasi-static TM-5-1300 


  1. 1.
    IS 4991-1968 Criteria for blast resistant design of structures for explosions above ground. Bureau of Indian Standards, New Delhi, IndiaGoogle Scholar
  2. 2.
    IS 6922-1973 Criteria for safety and design of structures subjected to underground blasts. Bureau of Indian Standards, New Delhi, IndiaGoogle Scholar
  3. 3.
    Son J, Lee H (2011) Performance of cable-stayed bridge pylons subjected to blast loading. Eng Struct 33:1133–1148CrossRefGoogle Scholar
  4. 4.
    Tang EKC, Hao H (2010) Numerical simulation of a cable stayed bridge response to blast loads, part I: model development and response calculations. Eng Struct 32:3180–3192CrossRefGoogle Scholar
  5. 5.
    Islam AKM, Yazdani N (2008) Performance of AASHTO girder bridges under blast loading. Eng Struct 30:1922–1937CrossRefGoogle Scholar
  6. 6.
    TM 5-1300 (2008) The design of structures to resist the effects of accidental explosions. Technical Manual, US Department of Army, Navy and Air force, Washington DC, USAGoogle Scholar
  7. 7.
    ASI (2006) Extreme loading for structures technical manual. Applied Science International, Raleigh, NC, USAGoogle Scholar
  8. 8.
    AASHTO (2003) Load and resistant factor design. Bridge design specifications. American Association of State Highway and Transportation Officials, Washington DC, USAGoogle Scholar
  9. 9.
    SAP2000 (2009) Advanced 14.1.0, computer software for static and dynamic finite element analysis of structures. Computers and Structures Inc., California, USAGoogle Scholar

Copyright information

© Springer India 2015

Authors and Affiliations

  1. 1.Applied Mechanics DepartmentShri K.J. PolytechnicBharuchIndia
  2. 2.Applied Mechanics DepartmentSVNITSuratIndia

Personalised recommendations