Lecture 5

Question 1

AASHTO Chapter for concrete bridges

Answer 1

Section 5

Question 2

AASHTO Chapter for decks and their systems

Answer 2

Section 9

Question 3

What is the minimum thickness for concrete deck slabs

Answer 3

7”

Question 4

The depths of slabs are based on…

Answer 4

Deflection

Question 5

h_min =

Answer 5

(S (Span Length) + 10)/30

Question 6

Minimum Depth of reinforcement for simple span slab is defined =

Answer 6

1.2(S+10)/30 for simple spans

Question 7

Minimum Depth of reinforcement for continuous span slab is defined =

Answer 7

(S+10)/30

Question 8

Simple Span T beams depth of reiforcement

Answer 8

.070L

Question 9

Simple Span Box beams depth of reinforcement

Answer 9

.060L

Question 10

Simple Span pedestrian structure depth of reinforcement

Answer 10

.035L

Question 11

Continuous Span pedestrian structure depth of reinforcement

Answer 11

.033L

Question 12

Continuous Span T Beam depth of reinforcement

Answer 12

.065L

Question 13

Continuous Span box Beam depth of reinforcement

Answer 13

.055L

Question 14

Unit weight of reinforced concrete

Answer 14

.150 kcf

Question 15

Future Wearing Surface w_DW

Answer 15

.140 kcf