Loads & Codes
This type of load is caused by the weight of the structure itself.
What is a dead load?
Stress is defined as a force divided by this quantity.
What is area?
This type of load is applied equally along a member.
What is a uniform load?
The modulus of elasticity of steel is this value.
What is 29,000,000 psi?
This many pounds are equivalent to 1 ton.
What is 2,000 lbs?
This type of load can vary in magnitude and location, unlike dead loads.
What is a live load?
A member with 10 kips applied to an area of 2 ft2 has this stress.
What is 5 ksf?
This is the equation most commonly used to calculate allowable deflection.
What is L/360?
This is the typical modulus of elasticity for wood.
What is 1,600,000 psi?
This equation describes factor of safety.
What is FS = Capacity (strength) / Applied Load (demand)?
This is the minimum uniformly distributed live load for a classroom in a school per the IBC.
What is 40 psf?
What type of stress acts parallel to a member or beam's surface?
What is shear stress?
This is the equation for maximum moment of a simply supported uniform load on a beam.
What is M=wL2/8?
The yield strength of ASTM A992 steel.
What is 50,000 psi?
This equation simplifies the deflection equation for a uniformly loaded member so that conversions are not required.
What is defl = 22.5wL4/EI?
According to building codes, this type of load is considered a lateral load.
What is wind load?
What is seismic load?
A section with M = 60 kft and a S = 100 in3 develops this bending stress.
What is 7.2 ksi?
A simply supported beam 15 ft long with 0.8k/ft uniform load has this maximum shear at the support.
What is 6 kips?
This section property describes the resistance of an object to change its rotational motion.
What is Moment of Inertia (I)?
These systems resist lateral loads.
What is shear walls, braced frames, and moment frames?
A roof is designed for 40 psf of snow over 2,000 ft2. This is the total of load in kips.
What is 80 kips?
This equation identifies the allowable bending stress for design.
What is fb=0.6Fy?
Newton's Law of Equilibrium describe this about stable structures.
What are equal and opposite forces?
This is the section modulus of a C12x20.7.
What is 21.5 in3?
These alternate foundation types are used when footings are not feasible.
What are drilled piers (caissons), pile foundations, and mat foundations?