Chapter 2 Flashcards
All of the structural elements and the connections that support and transfer the loads
Gravity Resistance System
Forces attributable to gravity and other sources of stress on a structure
Loads
Forces or other actions that result from the weight of all building materials, occupants and their possessions, environmental effects, differential movement, and restrained dimensional changes
Loads
The result of forces applied to a structural member
Internal forces that resist the load
Stress and strain
Term meaning 1000 pounds
KIP
The force per unit area that produces a deformation. Usually measured in PSI
Stress
Actual percentage of elongation (deformation) that occurs when a material is stressed. Measured in fractions of an inch of deformation per inch of orig length.
Strain
Four Types of Forces
Compression
Tension
Torsion
Shear
Squeezing Force
Compression
Stretching Force
Tension
Twisting Force
Torsion
Opposing forces pulling in opposite directions
Shear
The weight of the building itself and any equip permanently attached or built in to it.
Dead Load
Today buildings can be seen as being bought by the ___________.
Pound
Fire resistance is closely related to mass. A heavy steel beam will take a ____________ time to fail due to heating than a lighter beam.
Longer
Any substitute structural element that is of (More/Less) mass than the element previously used to carry the equivalent load is inherently (More/Less) fire resistant.
Less; Less
A structures deadload is often increased during:
Alteration of the building
Ex: Adding AC units on the roof
Any load(s) other than deadload:
Love Load
