frames structures Flashcards
What is steel primarily made of?
Iron with carbon mixed in
Steel is an alloy compound created through the purification of iron ore and the addition of carbon.
What are the benefits of steel frame structures?
- Time
- Ease
- Space saved
- No wet work
- Site bolted connection means no welding required
- Strong structure
These benefits highlight the efficiency and strength of steel frame structures.
What are the disadvantages of steel frame structures?
- Subject to fluctuating costs
- Needs treating to stop corrosion
- Plant required
- Space
- Steel loses 50% of its strength if exposed to high temperatures
- Needs secondary fire protection
These disadvantages can impact the overall feasibility and safety of steel frame constructions.
What is a reinforced concrete frame made from?
Concrete with steel reinforcement
The steel reinforcement is welded into position by timber framework to enhance the strength of the concrete.
What are the benefits of a reinforced concrete frame?
- Strong
- Easy to mold
- No additional treatment required
- Thin shell construction can be achieved
- Post tension systems can be added to increase load capacity
- No worry of fire regulations
These benefits make reinforced concrete frames versatile and efficient for various construction needs.
What are the disadvantages of a reinforced concrete frame?
- Time
- Timber/steel framework is required
- Uses wet work
- Requires good workmanship
- Crane is required
- Needs heavier foundations
- Concrete pump is required
- PPE needed
These factors can complicate the construction process and increase costs.
What is the difference between ready mix concrete and batched concrete?
Ready mix is pre-made, batched is made onsite
Batched concrete involves mixing cement and fine aggregate on-site, followed by adding water and coarse aggregate.
