Shared Flashcard Set

Details

Structures
Test 2- 4a-6
34
Engineering
Undergraduate 2
04/26/2011

Additional Engineering Flashcards

 


 

Cards

Term
plate girder
Definition
custom beam fabricated by welding plate together. used by Mies to thicken beam moment.
Term
bond stress
Definition
stress develops when you load beam, the friction between the steel and the concrete
Term
development length
Definition
length needed for bar to develop to its full capacity.
Term
lateral moment of inertia
Definition
pull edge out to edge to increase moment of inertia. measure of an objects resistance to rotation.
Term
pre-cast concrete
Definition
concrete cast out of place
Term
steam curing
Definition
induced, faster, more uniform
Term
hinge connection
Definition
transfer shear. moment = 0 at ends
Term
pin connection
Definition
transfer shear. moment = 0 at ends
Term
shear connection
Definition
attach at web because thats where the shear stress is.
Term
deflection
Definition
deflection=( K x load x length) / (moment of elasticity x area)
Term
balanced section
Definition
cantilever
Term
moment connection
Definition
transfer moment. moment = 0 at ends
Term
fixed connection
Definition
transfer moment. attach @ flanges b/c thats where bending stress is.
Term
rigid connection
Definition
transfer moment
Term
suspended structure
Definition
load held by tension
Term
cable-hung
Definition
load held in tension by cables
Term
elastic limit
Definition
right before steel yields
Term
plastic
Definition
when steel yields
Term
plastic hinge
Definition
can't take any more moment. happens when steel is yielding
Term
mechanism
Definition
formation of an unstable structure
Term
ductile frame
Definition
basically always steel frame.
Term
induced moment
Definition
movement generates bending stress in fixed connections
Term
why is a simply-supported constant cross section beam inefficient?
Definition
because moment isn't constant, but beam is. means you have to design the whole beam for the largest moment, even thou most of the beam doesn't need it.
Term
two methods to anchor steel rebar
Definition
hook, bonded
Term
six factors that effect a beam's deflection
Definition
= (load x length) / (modulus of elasticity x area)
also, prestressing, and k (effective length & support conditions)
Term
can draped prestressing tendons be pretensioned?
Definition
no, they wouldn't be draped.
Term
purpose of a bearing pad
Definition
so you don't chip the corner. provides level of clearance for deflection
Term
details for bearing connection
Definition
bearing plate, chamfering the edge, shear key
Term
why are fixed connections hard to achieve in wood?
Definition
wood has directionality. glue is sucked into the grains
Term
necessary detailing in two steel WF sections?
Definition
magic box
Term
necessary detail in cold joint?
Definition
grout
Term
lateral bracing
Definition
on compression side
Term
additional costs when building's structure is exposed?
Definition
temperature- expands/contracts, differential settlement.
Term
shear key
Definition
anything to help take up the shear stress
Supporting users have an ad free experience!