Struct 2 Flashcards
Tabulated timber allowable stress sometimes require adjustment for service conditions such as temp, moisture, etc.
True
For columns, the lower the slenderness ratio, the more it is prone to buckling.
False
The primary index of stiffness for concrete is f’c,which is the modulus of elasticity.
True
In load and resistance factored design, no matter what material is being used (wood, steel, concrete,) the design is considered to be acceptable if the actual load is less than the failure load divided by the factor of saftey.
False
In allowable stress design, no matter what material is being used (wood,steel,concrete,) the design is considered to be acceptable if the factored load is less than the factored resistance.
False
The distance between the reinforcing steel and the outer edge of a concrete member is called
Clearance
A slightly ______ condition is the optimal design situation for reinforced concrete beams.
Over-reinforced
What are the two load combinations to be calculated when using LRFD, if the only loads we are considering are dead loads and live loads?
None of the above
1.2(dead Load)+1.6(live load)
Name the primary organization that publishes refrence material for design loads in the USA
American society of civil engineers
Name the organization that is the chief source of info for the design of steel structures in the USA
American society for testing and materials
WHat is the acronym of the wood design standard published by the american forest and paper association?
NSD
Which material is the stiffest according to typical values of Modules of Elasticity
Concrete
For soils, the atterberg limits are stated in
% moisture content
Steel that has undergone permanent deformation, due to a load , has reached or exceeded ____ of the stress and strain diagram
Plastic range
Stirrups in reinforced concrete beams help resist ________
Deflection
Soil that has water content between the liquid limit and plastic limit is described as behaving like ________
Sily Putty
Soil that has a water content less than the plastic limit is describe as behaving like ________
Soup
The dividing line between sand and gravel is the No. ______ sieve
4
The dividing line between sand and silt/clays is the No. ________ sieve
200
Wood has higher design values when the load being considrered has an _______
Shorter
What is the minimum design live load for public rooms in a hotel?
100 PSF
