For this question, I was wondering where the 0.15 came from in the dead load equation because when I looked at table 1.2, I saw it was 144. Also, for the Dead load equation, I thought it was DL=q*A*thickness so I was wondering why aren’t they doing 30*10 for the area
For this question, I was wondering where the 0.15 came from in the dead load equation because when I looked at table 1.2, I saw it was 144. Also, for the Dead load equation, I thought it was DL=q*A*thickness so I was wondering why aren’t they doing 30*10 for the area
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
For this question, I was wondering where the 0.15 came from in the dead load equation because when I looked at table 1.2, I saw it was 144. Also, for the Dead load equation, I thought it was DL=q*A*thickness so I was wondering why aren’t they doing 30*10 for the area
![2-3. The floor system used in a school classroom consists of a
4-in. reinforced stone concrete slab. Sketch the loading that
acts along the joist BF and side girder ABCDE. Set
a = 10 ft, b = 30 ft. Hint: See Tables 1.2 and 1.4.
SOLUTION
Joist BF. Since
a
Thus, the tributary area for this joist is the rectangular area shown in Fig. a, and the
intensity of the uniform distributed load is
b
30 ft
= 3, the concrete slab will behave as a one-way slab.
10 ft
4
4-in-thick reinforced stone concrete slab: (0.15 k/ft³) (ft)(1
ft (10 ft) = 0.5 k/ft
12](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0599d361-e78a-47ec-83b2-677e1fd706fd%2Fc4a5670b-452e-4694-9d9c-27944cec5bbb%2Fa7vp7mb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2-3. The floor system used in a school classroom consists of a
4-in. reinforced stone concrete slab. Sketch the loading that
acts along the joist BF and side girder ABCDE. Set
a = 10 ft, b = 30 ft. Hint: See Tables 1.2 and 1.4.
SOLUTION
Joist BF. Since
a
Thus, the tributary area for this joist is the rectangular area shown in Fig. a, and the
intensity of the uniform distributed load is
b
30 ft
= 3, the concrete slab will behave as a one-way slab.
10 ft
4
4-in-thick reinforced stone concrete slab: (0.15 k/ft³) (ft)(1
ft (10 ft) = 0.5 k/ft
12
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