Arch Materials

Arch Materials

Gateway Arch (St.Louis, MO)

Gateway Arch (St.Louis, MO)

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)

Five Stone Arch Bridges (Hillsborough, NH)

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)

Canal Lake Concrete Arch Bridge (Kawartha Lakes, Ontario)

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)

Humber Bay Arch Bridge (Toronto, Ontario)



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