The shape factor of an isosceles triangle for bending about the axis parallel to the base is________________?

A. transfer the load from the top flange to the bottom one
B. prevent buckling of web
C. decrease the effective depth of web
D. prevent excessive deflection

A. 3
B. 5
C. 6
D. 7

A. 1
B. 2
C. 3
D. 4

A. sway bracing
B. portal bracing
C. top lateral bracing
D. bottom lateral bracing

A. 1.0
B. 1.4
C. 1.8
D. 2.0

A. are used to reduce the length of connection.
B. are unequal angles.
C. increases shear lag.
D. all the above