Diagrammatic Representation Of Load From ShinglesOnTop Of North-East Corner Of Block WallandInduced Versus Allowable Stresses In Block Wall
Yogi Anand, D.Eng, P.E.
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Conclusion............................................................................................................................................................................................................
Items to focus on safety against -- overstressing of blocks to prevent o cracking of blocks o crushing/breaking of blocks o leaning/bulging out of wall o dislodging of blocks(ordering is alphabetical and not by significance)
MindMap#y_____started Mar-19-2009 last updated on......................
Evaluating Effect of Large LoadPlaced On Top Of Corner Of WallbyYogi Anand, D.Eng, P.E.
Evaluating Effect of Large LoadPlaced On Top Of Corner Of WallDuringRoof Repair Of An Adjacent Building
Note:
see the writeup at left below for what the various icons stand for
Background(Situation)
tems RelatingTo Load From ShinglesOn Top Of Wall
regulatory/coderequirements
if in doubt -- inform ownerandconsult with an engineer orresponsible party to developa safe strategy
ensure no damage to otherparts of building or anyadjacent building
ensure safety
workmanship
use strategies and tools toensure no overstressing iscaused -- work carefully asnot to cause any dynamic loading or colateral damage
Safety first
contractorresponsibility
nsure that the shingleswere to be transported tothe building needing roofrepair in a safe manner
no adverse impact onadjacent or other partsof building
safe operation
site specific
building needing roofrepair set back to West
North-East cornerpretty slender
stak bond and notrunning bond
the building whose roof had to be repairedis set some distance to the West of the North-East corner of the buildingsothe roof repair contractor had to load upthe shingles on the North-East cornerof thebuilding with flat roof and then transport theshingles to the buiding needing roof repairthe concern isthat because the block wall at the North-Eastcorner is pretty slender, putting the pallet ofshingles on top of the North-East cornercould have resulted in damage to the wallbecause of wall getting over loaded
Structural IntegrityConsiderations
from loading of shingles on topof the North-East corner of blockwall, the blocks got overstressed and resulted in
dislodging of some of the blocks
leaning/bulging out of wall
crushing/breaking of some blocks
cracking of some blocks
repair work
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the desired outcome expected here was that the roof repair work was done in aworkman like manner safely and securelywithout causing any damage to otherparts of the building or any adjacent building
