chp 6

Question 1

types of columns

Answer 1

• braced columns
• unbraced columns

Question 2

describe braced column

Answer 2

• when the lateral loads are resisted by walls (with a braced column the axial forces and moments are caused by dead and imposed load)

Question 3

describe unbraced column

Answer 3

where the lateral loads are resisted by the bending action of the columns

Question 4

types of column failure

Answer 4

• crushing
• buckling

Question 5

preferred minimum spacing

Answer 5

• main bars - 75mm (bars 40mm size and greater: 100mm)
• pairs of bars - 100mm

Question 6

preferred maximum spacing

Answer 6

• compression bars - 300mm
• tension bars - 175mm