Consider the five-story building shown in the figure.The average weights of the floor and roof are 100 Ib/ft2 and 70 Ib/ft², respectively. The values of Sps and Spjare equal to 0.9 g and 0.4 g, respectively. Since steel moment frames are used in the north-south direction to resist the seismic forces, the value of Requals 8. Compute the seismic base shear V. Then, distribute the base shear along the height of the building. 4 @ 25' = 100' Plan (a) гoof 20 |15 13 Building Section wind pressures in Ib/ft² (b) (c) The seismic base shear Vof the building is 285.8 kips. The seismic base shear Fy on the roof is 84 8 kips. The seismic base shear Fyon the fifth floor is 104.1 kips. The seismic base shear Fx on the fourth floor is 75 kips. E5 @ 12'= 60 F 3 @ 20´= 60' ,06 = ,0£ ☺ £ – inin
Consider the five-story building shown in the figure.The average weights of the floor and roof are 100 Ib/ft2 and 70 Ib/ft², respectively. The values of Sps and Spjare equal to 0.9 g and 0.4 g, respectively. Since steel moment frames are used in the north-south direction to resist the seismic forces, the value of Requals 8. Compute the seismic base shear V. Then, distribute the base shear along the height of the building. 4 @ 25' = 100' Plan (a) гoof 20 |15 13 Building Section wind pressures in Ib/ft² (b) (c) The seismic base shear Vof the building is 285.8 kips. The seismic base shear Fy on the roof is 84 8 kips. The seismic base shear Fyon the fifth floor is 104.1 kips. The seismic base shear Fx on the fourth floor is 75 kips. E5 @ 12'= 60 F 3 @ 20´= 60' ,06 = ,0£ ☺ £ – inin
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![Consider the five-story building shown in the figure.The average weights of the floor and roof are 100 Ib/ft2 and 70 Ib/ft², respectively.
The values of Sps and Spjare equal to 0.9 g and 0.4 g, respectively. Since steel moment frames are used in the north-south direction
to resist the seismic forces, the value of Requals 8. Compute the seismic base shear V. Then, distribute the base shear along the
height of the building.
4 @ 25' = 100'
Plan
(a)
гoof
20
|15
13
Building Section
wind pressures
in Ib/ft²
(b)
(c)
The seismic base shear Vof the building is 285.8
kips.
The seismic base shear Fy on the roof is
84 8 kips.
The seismic base shear Fyon the fifth floor is
104.1
kips.
The seismic base shear Fx on the fourth floor is
75
kips.
E5 @ 12'= 60
F 3 @ 20´= 60'
,06 = ,0£ ☺ £ –
inin](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fba96fa8d-251e-4c95-a2c2-d7a8f881f81b%2F33e0663d-b600-4312-854b-29c45221d5c9%2Fr3fbeg.png&w=3840&q=75)
Transcribed Image Text:Consider the five-story building shown in the figure.The average weights of the floor and roof are 100 Ib/ft2 and 70 Ib/ft², respectively.
The values of Sps and Spjare equal to 0.9 g and 0.4 g, respectively. Since steel moment frames are used in the north-south direction
to resist the seismic forces, the value of Requals 8. Compute the seismic base shear V. Then, distribute the base shear along the
height of the building.
4 @ 25' = 100'
Plan
(a)
гoof
20
|15
13
Building Section
wind pressures
in Ib/ft²
(b)
(c)
The seismic base shear Vof the building is 285.8
kips.
The seismic base shear Fy on the roof is
84 8 kips.
The seismic base shear Fyon the fifth floor is
104.1
kips.
The seismic base shear Fx on the fourth floor is
75
kips.
E5 @ 12'= 60
F 3 @ 20´= 60'
,06 = ,0£ ☺ £ –
inin
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