NHI 130055 MIDTERM EXAM (MODULES 1.0 -5.2) | EXPERT REVIEW
QUESTIONS & WELL DETAILED SOLUTIONS (100% VERIFIED) | A+
GRADED | LATEST 2026/2027 EDITION
Elements of a Deck
– ANSWER ✔✔-Deck
Wearing Surface
Bridge Railing
Sidewalk
Expansion Joint
3 Primary Bridge Components (in order)
– ANSWER ✔✔-1. Deck
2. Superstructure
3. Substructure
Elements of a Superstructure
- ANSWER ✔✔-Girder
Floorbeam
Stringer
Truss
Arch
Spandrel Columns
Cables
Cross Girder
Pin & Hanger Assemblies
Elements of a Substructure
- ANSWER ✔✔-Columns/Piles
1
,Walls
Abutments
Wingwalls
Pier Caps
Load Path
- ANSWER ✔✔-Deck
Superstructure
Bearings
Substructure
Subsurface
Function of Deck
- ANSWER ✔✔-Supports live load
Function of Superstructure
- ANSWER ✔✔-Transfers loads from deck to bearings and substructure
Function of Bearings (load path)
- ANSWER ✔✔-Transmit loads from superstructure to substructure
Function of Bearings (Other)
- ANSWER ✔✔-Permits longitudinal expansion and contraction
Allows rotation caused by dead and live deflection
Function of Substructure
- ANSWER ✔✔-Transfers loads from deck and superstructure into the ground
2
, Function of Culverts
- ANSWER ✔✔-transmit the flow of water from one side of roadway to the other (hydraulic structures
that are typically underfill)
Axial Force
- ANSWER ✔✔-A force which acts through the longitudinal axis of a member
Bending Moment
- ANSWER ✔✔-A combination of tension and compression forces developed when an external load is
applied transversely to a bridge member, causing it to bend
Shear Force
- ANSWER ✔✔-Results from equal but opposite transverse forces which tend to slide one section of a
member past the adjacent section
Torsional Force
- ANSWER ✔✔-An external moment which tends to rotate or twist a member about its longitudinal
axis.
Stress
- ANSWER ✔✔-Force per unit area and it denotes intensity of an internal force; may be tension,
compression, or shear
Deformation
- ANSWER ✔✔-Local distortion or the change in shape of material due to applied force
Strain
- ANSWER ✔✔-Measure of deformation and it denotes around an object deforms WRT its original
dimensions
3
QUESTIONS & WELL DETAILED SOLUTIONS (100% VERIFIED) | A+
GRADED | LATEST 2026/2027 EDITION
Elements of a Deck
– ANSWER ✔✔-Deck
Wearing Surface
Bridge Railing
Sidewalk
Expansion Joint
3 Primary Bridge Components (in order)
– ANSWER ✔✔-1. Deck
2. Superstructure
3. Substructure
Elements of a Superstructure
- ANSWER ✔✔-Girder
Floorbeam
Stringer
Truss
Arch
Spandrel Columns
Cables
Cross Girder
Pin & Hanger Assemblies
Elements of a Substructure
- ANSWER ✔✔-Columns/Piles
1
,Walls
Abutments
Wingwalls
Pier Caps
Load Path
- ANSWER ✔✔-Deck
Superstructure
Bearings
Substructure
Subsurface
Function of Deck
- ANSWER ✔✔-Supports live load
Function of Superstructure
- ANSWER ✔✔-Transfers loads from deck to bearings and substructure
Function of Bearings (load path)
- ANSWER ✔✔-Transmit loads from superstructure to substructure
Function of Bearings (Other)
- ANSWER ✔✔-Permits longitudinal expansion and contraction
Allows rotation caused by dead and live deflection
Function of Substructure
- ANSWER ✔✔-Transfers loads from deck and superstructure into the ground
2
, Function of Culverts
- ANSWER ✔✔-transmit the flow of water from one side of roadway to the other (hydraulic structures
that are typically underfill)
Axial Force
- ANSWER ✔✔-A force which acts through the longitudinal axis of a member
Bending Moment
- ANSWER ✔✔-A combination of tension and compression forces developed when an external load is
applied transversely to a bridge member, causing it to bend
Shear Force
- ANSWER ✔✔-Results from equal but opposite transverse forces which tend to slide one section of a
member past the adjacent section
Torsional Force
- ANSWER ✔✔-An external moment which tends to rotate or twist a member about its longitudinal
axis.
Stress
- ANSWER ✔✔-Force per unit area and it denotes intensity of an internal force; may be tension,
compression, or shear
Deformation
- ANSWER ✔✔-Local distortion or the change in shape of material due to applied force
Strain
- ANSWER ✔✔-Measure of deformation and it denotes around an object deforms WRT its original
dimensions
3
