Glossary - O

Tuesday, 31 December 2013 Written by Administrator

» o.c. Abbreviation for “on center,” mean- ing that the spacing of framing members is measured from the center of one memberto the center of the next, rather than the clear
   spacing between members. Occupancy group In the International Building Code, a definition of the types of activities that occur within the building or a part of the building,
   relating to con- siderations of life safety.

» Ogee An S-shaped cur ve.

» Oil-based caulk A low-range sealant made with linseed oil.

» One-way action The structural action of a slab that spans between two parallel beams or bearing walls.

» One-way concrete joist system A rein- forced concrete framing system in which closely spaced concrete joists span be- tween parallel beams or bearing walls.

» One-way solid slab A reinforced con- crete floor or roof slab that spans between parallel beams or bearing walls.

» Open-truss wire stud A wall framing member in the form of a small steel truss. Open-web steel joist A lightweight, prefabricated, welded steel truss used at closely spaced
   inter vals to support floor or roof decking.

» Optical-quality ceramic A transparent, glasslike material that is used as a fire- rated glazing sheet.

» Optimum value engineering See Ad- vanced framing techniques.

» Ordinary construction A traditional building type with exterior masonr y bear- ing walls and an interior structure of bal- loon framing

» Organic soil Soil containing decayed vegetable and/or animal matter; topsoil. Oriented strand board (OSB) A build- ing panel composed of long shreds of wood fiber oriented
   in specific directions and bonded together under pressure. Oriented strand lumber (OSL) Structur- al composite lumber made from shredded wood strands, coated with
   adhesive, and pressed into a rectangular cross section. OSB See Oriented strand board.

» OSL See Oriented strand lumber. Oxidation Corrosion; rusting; rust; chemically, the combining with oxygen

. Last Updated on Wednesday, 08 January 2014 10:29