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Theory of Structures - Engineering

Q1:

In plastic analysis, the shape factor for rectangular section, is

A 1.4

B 1.5

C 1.6

D 1.7

ANS:B - 1.5

Shape factor = Ip/Ie or Mz/Me.

For tube = 1.27,
For I section = 1.12 to 1.20 .
Rectangular: 1.5.
Circular: 1.7.
Triangular: 2.34.