Monday, October 16th, 2017

Earthquakes When we hired the engineer to design our house we were aware that the Philippines was included in the “ring of fire” earthquake zone and that our part of Panay Island had experienced a magnitude 8.2 earthquake in 1948.  In 1948 the island was much less developed.  Doubtless all or almost all the hollow block buildings on the island were built after 1948.  The 1948 quake damaged or destroyed. …

Rebar splicing a key problem area with our Philippine house building project. Philippine buildings generally consist of steel reinforced concrete columns or posts supporting steel reinforced concrete beams with the spaces filled in with fairly weak concrete block forming the walls.  The reinforcing steel is referred to as “deformed rebar”. Ours is a one-story house, so a single standard six meter long rebar (about 20 feet) can extend from the footer (1.2 M deep) to the topmost roof beam without splicing.  That’s a good thing.  Our columns used 12mm diameter rebar. All …