BUILDING TECH 2 Flashcards
What will the quiz cover: steel and concrete structural systems
What are floor systems and what they help with?
Horizontal planes that must support both live loads (people) and dead loads (weight of floor construction itself)
what are structural steel systems designed for?
strength, efficiency, and adaptability
hybrid structural systems benefits
- Combining steel with other materials optimizes structural performance
- mprove fire resistance and stiffness
benefits of Concrete structural systems
- strength, durability (against weathering) , and design flexibility.
For Steel
For Concrete:
Benefits, Structural elements: (Footings Beams, Columns, Slabs, Walls), construction
Footings: Concrete slabs or beams that create a base for structural concrete
Beams: Create strong reinforcement underneath slabs to transfer loads to columns
Columns: Vertical beams that prevent slabs from dipping under the weight of loads
Slabs: Create flat horizontal surfaces like floors, roof decks, and ceilings
Walls: Can be used to create interior or exterior walls
What makes up/how is Concrete construction made?
Concrete frame structures are made of connected members that are firmly connected to each other. These connections are called moment connections.
what is concrete
Concrete is a composite material made of cement, aggregates, and water.
what is a semi liquid mix called?
‘slurry’
concrete is ___
It is one of the most widely used materials in construction.
After hydration what happens to concrete?
concrete cures: dries and hardens, and gains strength
CEMENT (DOES NOT=) CONCRETE
CEMENT = INGREDIENT IN CONCRETE
what is reinforcement?
- steel rebar, steel fibers, and mesh (are common reinforcement materials)
- Concrete is strong in compression but weak in tension.
- Reinforcement compensates for tensile weaknesses.
Creep and shrinkage in concrete
These effects impact long-term structural performance.
-Creep
Creep: Long-term deformation under load.
Shrinkage
Volume reduction due to moisture loss.
One-way slabs
One-way slabs: Rebar is placed parallel to the primary span direction.
- Transfer loads in a single direction
- Less steel than two-way
- Thicker than two-way
two-way slabs
- Transfer loads across two axes
- More steel than one-way
- Thinner than one-way
what are Reinforced Concrete Slabs used in?
Used in floors and ceilings.
