Portal Frame

Portal frame structure can be built using Steel, Timber or Reinforced concrete.

• TRUE

• FALSE

The use of portal frame structure can create a wide span of building spaces without obstruction of intermediate columns

• TRUE

• FALSE

Portal frame consist of spanning members and supporting members connected with rigid connection.

• TRUE

• FALSE

Portal frame distributes bending moment stresses to the entire spanning members.

• TRUE

• FALSE

The use of portal frame will reduce bending moment at the mid-span of the beam thus resulting in smaller sized beam to be used.

• TRUE

• FALSE

Bending moment shown in the image is for ...

• Fixed portal frame

• Two pin portal frame

• Three pin portal frame

• Single pin portal frame

Referring to the bending moment diagram shown. Which of the following statements are TRUE?

• Maximum bending moment is shown at knee joint.

• Maximum bending moment is shown at the centre of spanning member.

• Zero bending moment is shown at the base of the frame

• Zero bending moment is shown at the apex of the frame

Type of portal frame shown in the image is ...

• Asymmetrical gable frame

• Single slope frame

• Lean-to frame

• Multi-span frame

The inclusion of pin joint in portal frame structure will ...

• eliminate bending moment at joints

• allow for wider span of portal frame to be built

• make the frame more flexible

• expediate the construction duration

The individual portal frames will be braced together using ...

• purlin

• wind bracing

• roof beam

• tie beam