Arch Materials
Table of Contents
- 1 Stone
- 2 Concrete
- 3 Steel
- 4 References
- 4.1 Contributors:
Gateway Arch (St.Louis, MO) |
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Stone
Advantages
Stone is durable, strong and weather resistant.
Minimal maintenance required after installment.
Non-combustible material.
High load carrying ability and recommended for buildings with high foot traffic.
Low environmental impact.
Disadvantages
Heavy material.
Low tensile strength and seismic resistance [1].
Time consuming construction method that requires skilled labour.
Five Stone Arch Bridges (Hillsborough, NH) |
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Concrete
Advantages
High load carrying ability.
Minimal maintenance required after installment.
Non-combustible material.
Concrete is an economical material. The production cost of concrete is low.
The energy required for concrete production is low when compared to materials such as steel.
Concrete can withstand water without serious deterioration. This makes concrete an effective option when encountering a stream or lake.
Disadvantages
Heavy material.
Long curing time.
Relatively low tensile strength.
Less ductile.
Canal Lake Concrete Arch Bridge (Kawartha Lakes, Ontario) |
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Steel
Advantages
High load carrying ability using minimal material.
Steel structures can withstand external pressures from earthquakes.
Light weight nature.
Scrap value.
Water-tight and air tight construction.
Disadvantages
Alloy of iron which makes it susceptible to corrosion [2].
High maintenance costs (fireproofing, corrosion control).
Reduced flexibility on site. It's difficult to make field corrections on site.
Buckling.
Humber Bay Arch Bridge (Toronto, Ontario) |
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