Question

For which of the following cases are equal angles preferred in bolted plate girder flange?

(a) when large number of connectors are required to connect flange angle to web

(b) when very few number of connectors are required to connect flange angle to web

(c) for reducing cost

(d) for aesthetic  appearance

This question was posed to me in class test.

Enquiry is from Proportioning of Web & Flanges in division Gantry Girders, Design of Plate Girders & Industrial Buildings of Design of Steel Structures

Answer 1

The correct choice is (a) when large number of connectors are required to connect flange angle to web

For explanation I would say: When shear is heavy, large number of connectors are required to connect flange angle to web. In such case, equal angles may be preferred, if unequal angles are used, the longer leg msy be placed parallel to the web.