Vocabulary List:
Team Work: A coordinated effort by a group of two or more with a common goal or objective.
Backer Rod: is a flexible strip of plastic foam that is inserted into a joint to limit the depth to which sealant can penetrate.
Caulking: one of the several different processes of sealing joints or seams in various structures and certain types of piping.
Construction caulking is very different from the type of caulking we referred to in class which is used in control joints. Construction caulking allows for no movement. Caulking for control joints is made of elastomeric materials which typically allow for movement 25% to 50% of the width of the joint therefore allowing material to expand and move without damaging (minimizing damage) adjacent materials like concrete or brick.
Control Joints: often confused with expansion joints, they are cuts in concrete or asphalt in regular intervals which allows for cracking but in a controlled fashion. Where as expansion joints try to prevent cracking completely. Control joints can be sealed with hot tar, cold sealant such as silicone or compression sealant such as rubber.
Cotter pins: locks and prevents screws from falling of.
Eccentric: means of center.
Expansion Joint: an assembly designed to safely absorb the heat induced expansion and contraction of various construction materials to absorb vibration, to hold certain parts together, or to allow movement due to ground settlement or earthquakes. They are commonly found between:
Sidewalks
bridges
railways
piping systems
etc.
Throughout the years building faces, concrete slabs, and pipelines will expand and contract due to the warming and cooling through seasonal variations. Before expansion joint gaps were built in structures they would crack under the stress induced.
Expansion joints are now included in most designs and could be as simple as caulking.
In concrete and concrete block (CMU) construction it is referred to as control joint serving similar purpose.
Facade: Facade is the exterior side of a building that includes front, sides and rear.
Galvanization: the process of applying a protective coating to metal in order to prevent rusting and corrosion. The most popular method of this is hot-dip galvanization, in which steel parts are submerged in a bath of molten zinc.
Girder: A beam made of steel, wood, or reinforced concrete, used as a main horizontal support in a building or bridge.
Levity: means unstable
Masonry: are individual units place together using mortar. The material for masonry units are brick, stone, marble, granite, limestone and concrete block.
Mortar: is a substance used to connect the masonry units. Mortar consist of Portland cement , hydrated lime , an inert aggregate and water.
Suspension Roof: A roof that is suspended by steel cables
Example: yale hockey stadium
Yoyogi Gymnasium
Truss: in architecture and engineering, a supporting structure or framework composed of beams, girders, or rods commonly of steel or wood lying in a single plane. A truss usually takes the form of a triangle or combination of triangles, since this design ensures the greatest rigidity. Trusses are used for large spans and heavy loads, especially in bridges and roofs.
