Truss Bridge Parts

A gusset plate connection is:

• uses a single large metal pin to connect two or more members together

• members are joined together by two heavy metal pins

• members are joined together by one or two heavy metal plates

• members are joined together by one or two welded beads along each joint

Equilibrium is when:

• total upward force is greater than the total downward force

• total upward force equals the total downward force

• total upward force is less than the total downward force

• total lateral force equals the total downward force

Reactions: (choose all that apply)

• are forces developed at the supports of a structure

• are forces developed at the foundation of a structure

• are any forces that apply to the structure

• keep the structure in equilibrium.

In engineering terms, strength means:

• minimal internal force the component can experience before it fails.

• excessive internal force the component can experience before it fails.

• largest internal force the component can experience before it fails.

• is a measure of how bulky the component is

In engineering terms failure is:

• when the internal force in a structural component becomes equal to its strength

• when the internal force in a structural component becomes larger than its strength

• when the external force on a structural component becomes larger than its strength

• when the external force in a structural component becomes equal to its strength

Internal member forces are:

• forces developed within each structural member

• forces developed external to each structural member

• tension developed within each structural member

• compression developed within each structural member

Tension is when a member is:

• being squashed

• being ripped

• being sheared

• being stretched

Compression is when a member is:

• being squashed

• being ripped

• being sheared

• being stretched

A load is:

• a force applied to a structure

• a friction force applied to a structure

• how heavy the structure is

• how much weight the structure can take

A foundation:

• distributes the weight of the structure to a column

• keeps it from bending

• distributes the weight of the structure to the horizontal beams

• distributes the weight of the structure to the soil or rock below it