Lightning damage to concrete foundation
Lightning damage to concrete foundation
(OP)
Does anyone know of a case where a lightning strike caused cracking to form in a concrete structure?
I am evaluating a claim where there are extensive cracks in the slab of a house that was recently struck by lightning. The residence has only a few damages to the cosmetic finish materials outside of the localized blast area, indicating a relatively low level of shock vibration to the structure from the blast.
Does anyone know of any papers or publications that address lightning damage to concrete structures?
I am evaluating a claim where there are extensive cracks in the slab of a house that was recently struck by lightning. The residence has only a few damages to the cosmetic finish materials outside of the localized blast area, indicating a relatively low level of shock vibration to the structure from the blast.
Does anyone know of any papers or publications that address lightning damage to concrete structures?





RE: Lightning damage to concrete foundation
"Venditori de oleum-vipera non vigere excordis populi"
RE: Lightning damage to concrete foundation
I've seen the same thing.
The water in the concete will vaporize with high currents. If you have water in between the strands of the cable it will alos flash to steam. It's a good ideal to install the ground cable with a short stub of sch 80 PVC. If it's raised off the floor a little it keeps water on the floor from running down between the strands. Some RTV inside the PVC will help.
RE: Lightning damage to concrete foundation
RE: Lightning damage to concrete foundation
There was a series of postings just before Christmas where damage to sidewalks and pavements were shown. I didn't save them but if you join the group and ask a question, I'm sure that you will get valuable information.
RE: Lightning damage to concrete foundation
Longshot archived 1970 IEEE reference … www.ieee-pcic.org/archive/Fagan_Lee_Paper.PDF
RE: Lightning damage to concrete foundation
The concrete appeared as though someone had beaten it with a hammer from the under side. It was somewhat pulverized in chunks maybe the size of pea gravel and a little dust, plus the damaged area was tapered in towards the re-bars. It was also cracked in some areas where the bars were closer together. Unfortunately that was in the days before digital cameras so I can't offer a photo without spending 3 hours going through my boxes. It was very similar to this, although it was horizontal so the debis remained in the damaged area.
htt
"Venditori de oleum-vipera non vigere excordis populi"
RE: Lightning damage to concrete foundation
http://www.srh.noaa.gov/lch/severe/ltg/ltg3.htm
"Venditori de oleum-vipera non vigere excordis populi"
RE: Lightning damage to concrete foundation
ftp://imgs.ebuild.com/woc/C840413.pdf
ftp://imgs.ebuild.com/woc/C710218.pdf
RE: Lightning damage to concrete foundation
RE: Lightning damage to concrete foundation