Bridge Engineering Assessment (orig)

The earliest bridges were made of stone.

• True

• False

What was the most significant innovation in bridge engineering in the late 18th century?

• The use of iron

• The development of the truss bridge

• The use of pneumatic caissons

• The development of the cantilever bridge

What is the most challenging step in building a cantilever bridge?

What type of bridge is used extensively for railroad bridges?

What are the two types of loads that engineers consider when designing a bridge?

• Live load and dead load

• Compression and tension

• Racking and bracing

• King Post and Warren

What are some environmental factors that can affect a bridge?

The efficiency of a model truss bridge is determined by the:

• Failure mass divided by the mass of the structure.

• Length of the bridge span.

• Type of material used to build the bridge.

• Amount of load the bridge can hold.

What is a caisson?

Match the definition with the type of bridge

• suspension bridge

• A type of bridge that connects the crossbeam or bridge deck directly to pillars or towers

• cable-stayed bridge

• A type of bridge uses a pillar anchored vertically into the ground to support a horizontal deck extending out from one or both sides across the span.

• cantilever bridge

• A type bridge having a curved structure. The design provides strength by exerting force downwards and sideways against the abutments.

• arch bridge

• A type of bridge in which the deck hangs from wires attached to thick cables. The cables themselves pass over towers and are securely anchored in concrete anchorages

• truss bridge

• A type of beam bridge, reinforced by a framework of girders that form triangular shapes.