LIGHTING STRIKES REINFORCED CONCRETE PAVEMENT

AN 1800 FOOT SECTION OF INTERSTATE 495 WAS DAMAGED DURING THE COURSE OF A SEVERE ELECTRICAL STORM. SOME 39 POP-OUTS AND SPALLS OCCURRED, GENERALLY AT JOINTS IN THE REINFORCED CONCRETE PAVEMENT. EVIDENCE IS PRESENTED TO SUPPORT THE HYPOTHESIS THAT LIGHTNING CAUSED THE OBSERVED DAMAGE. REPORTS OF LIGHTNING DAMAGE FROM THE LITERATURE ARE REVIEWED, AND THEIR COMMON ELEMENTS COMPARED WITH THE PRESENT CASE. DIRECT EXPERIMENTAL EVIDENCE IS PRESENTED TO SUPPORT THE PROPOSED MECHANISM THAT DAMAGE WAS CAUSED BY THE ARCING OF THE LIGHTNING CURRENT THROUGH CONCRETE AT GAPS IN THE REINFORCING STEEL ARRANGEMENT. MECHANICAL PROPERTIES TESTS ON REINFORCING STEEL AND CONCRETE SURROUNDING THE POP- OUTS INDICATE THAT THE DAMAGE WAS LOCALIZED, AND THAT LITTLE OR NO DEGRADATION OF THE BULK OF THE PAVEMENT OCCURRED. /AUTHOR/

  • Supplemental Notes:
    • No R68-88, 37 PP, 13 FIG, 1 TAB, 9 REF
  • Corporate Authors:

    Massachusetts Institute of Technology

    Department of Civil Engineering, 77 Massachusetts Avenue
    Cambridge, MA  United States  02139
  • Authors:
    • Jones, R C
  • Publication Date: 1968-12

Subject/Index Terms

Filing Info

  • Accession Number: 00213370
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 4 1994 12:00AM