Why is concrete structure better than steel?
Concrete structure can take compressive stresses very effectively but it cannot take tensile stresses….Steel Structures Vs Concrete Structures.
| Point of difference | Concrete structure | Steel structure |
|---|---|---|
| Durability | The concrete structure are more durable | The durability of steel structure is adversely affected by weather condition and rusting |
What is the factor of safety in steel?
Typical overall Factors of Safety
| Equipment | Factor of Safety – FOS – |
|---|---|
| Spring, large heavy-duty | 4.5 |
| Structural steel work in buildings | 4 – 6 |
| Structural steel work in bridges | 5 – 7 |
| Wire ropes | 8 – 9 |
What is the difference between concrete and steel?
Concrete is a conventionally used material for construction while steel is now gaining momentum for its flexibility and reduced construction time. However, steel needs fire protection whereas within concrete this is inherent. Prefabrication of steel can allow thin film intumescent coatings to be applied offsite.
Is steel better than concrete for the environment?
Of all the metals used in construction, steel is amongst the most environmentally-friendly. It has a lower embodied carbon impact than concrete and generates less waste.
What are advantages and disadvantages of steel structure over concrete structure?
Steel is a highly durable metal. It can withstand a considerable amount of external pressure. Hence, steel structures are earthquake resistant whereas concrete structures are brittle. Concrete is not as resistant as steel.
What is the partial safety factor for steel and concrete?
Partial safety factor for steel and concrete should be considered as 1.15 and 1.5 respectively. (vi) The maximum strain in the tension reinforcement in the section at failure shall not be less than f y 1.15 E s + 0.002,
What is the difference between the strength of steel and concrete?
Uncertainity in strength of concrete is more than that of steel because steel is manufactured in controlled conditions whereas concrete is made on the site itself. Being elastic in property failure of steel is gradual whereas failure of concrete is sudden which can be more disastrous. That’s why more factor of safety is taken into consideration.
Why is the FOS of steel less than that of concrete?
On the basis of this concept the FOS of steel is less because of very less percentage air void in comparison of concrete . Secondly the other reason are steel are cast in well maintained moulds , casting process and temperature etc .
What are the factors affecting the quality of concrete?
While in case of concrete quality of concrete is not much in control it depends on various factors like site condition, weather, temperature, aggregate properties, cement properties, water quality, water cement ratio etc. So it is very difficult to control so many factor