Introduction to Structure

Define the meaning of structures

• Refer to beam structure only

• Combination of structural elements and the materials from and composed as the whole of structural system

• Combination elements of truss and frame only

• Refer to all type of elements of truss, frame, beam, dome, tie rods.

Which is wrong about beam structure?

• Strong in compression but week in tension, therefore required a steel reinforcement

• Have few types of beam such as simply supported beam, cantilever beam etc

• The function only for aesthetic purpose in structure

• Compulsory to support the loads

Name the type of beam with pinned and roller type support

• Cantilever beam

• Simply supported beam

• Hanging beam

• Unstable beam

Name the type of beam with fixed type support at one end

• Cantilever beam

• Simply supported beam

• Hanging beam

• Unstable beam

Based from the determinancy of beam equation. r= n + 3. State the number of reaction, r and number of hinge,n.

• r = 5, n= 5

• r = 5, n = 0

• r = 4, n = 0

• r = 5, n = 1