5 An interior panel of a twoway flat plate is designed by th

#5

An interior panel of a two-way flat plate is designed by the direct design method of the ACI specification. The slab spans a distance L in the north-south direction and a distance 1.2L in the east-west direction. Columns are square.

The region of the slab that requires the greatest amount of flexural reinforcement per foot of width is

(A)

the column strip negative region in the north-south direction

(B)

the column strip positive region in the north-south direction

(C)

the middle strip negative region in the north-south direction

(D)

the column strip negative region in the east-west direction

#6

The steel tension member shown is attached to another member using a combination of fillet welds and ASTM A 325 bolts.

If the connection strength is to be calculated as the combined shear strength of the bolts and welds, it is essential that the bolts that are installed be

(A)

bearing type with threads excluded from the shear plane

(B)

bearing type with threads included in the shear plane

(C)

snug-tight

(D)

slip critical

Solution

5) The column strip negative region in east-west direction. Option D

6) Snug tight, Option C