Quiz no. 1 – CE 421
PRINCIPLE ODF STEEL DESIGN (LEC)
Alfred V. Matnog
BSCE-4A
1. Give at least 5 examples of steel structure
▪ Roof truss
▪ Bridge
▪ Transmission tower
▪ Industrial building
▪ Single layer barrel vault
2. Define the ff. (2 pts. Each)
▪ Steel design
- Steel design, or structural steel, is a subset of steel design. Steel structure
design is a field of structural engineering that deals with the design of steel
structures. A steel structure is made up of structural members made of steel that
have standard cross-sectional profiles, chemical compositions, and mechanical
qualities.
▪ Stress
- Stress is defined as the force of resistance per unit per unit area, offered by a
body against deformation. If an applied force causes a change in the dimension
of the material, then the material is in the state of stress. If we divide the applied
force (F) by the cross-sectional area (A), we get the stress.
▪ Strain
- Strain is the ratio of change in length to the original length, when a given body
is subjected to some external force. Strain is the change in the dimension (L-L0) with
respect to the original. It is denoted by the symbol epsilon (ε). The formula is ε = (L-L0) /
L0. For a shear force, strain is expressed by γ (gamma)
▪ Elasticity
- Elasticity is the property of the material which enables the material to return to its
original form after the external force is removed.
▪ Plasticity
- This is a property that allows the material to remain deformed without fracture even
after the force is removed.
PRINCIPLE ODF STEEL DESIGN (LEC)
Alfred V. Matnog
BSCE-4A
1. Give at least 5 examples of steel structure
▪ Roof truss
▪ Bridge
▪ Transmission tower
▪ Industrial building
▪ Single layer barrel vault
2. Define the ff. (2 pts. Each)
▪ Steel design
- Steel design, or structural steel, is a subset of steel design. Steel structure
design is a field of structural engineering that deals with the design of steel
structures. A steel structure is made up of structural members made of steel that
have standard cross-sectional profiles, chemical compositions, and mechanical
qualities.
▪ Stress
- Stress is defined as the force of resistance per unit per unit area, offered by a
body against deformation. If an applied force causes a change in the dimension
of the material, then the material is in the state of stress. If we divide the applied
force (F) by the cross-sectional area (A), we get the stress.
▪ Strain
- Strain is the ratio of change in length to the original length, when a given body
is subjected to some external force. Strain is the change in the dimension (L-L0) with
respect to the original. It is denoted by the symbol epsilon (ε). The formula is ε = (L-L0) /
L0. For a shear force, strain is expressed by γ (gamma)
▪ Elasticity
- Elasticity is the property of the material which enables the material to return to its
original form after the external force is removed.
▪ Plasticity
- This is a property that allows the material to remain deformed without fracture even
after the force is removed.
