Per the ACI, what is the minimum girder depth (Select a uniform depth for all girders)Material properties are:- Concrete weight: wt = 150 pcf- Concrete compressive strength: f’c = 4000 psi- Steel tensile strength: fy = 60 ksi- Stirrup consists of #4 bar- Framing members are not exposed to weather or in contact with soil.Answer from: 24", 30", 36", 28" D30-0¹MemberSolid one-way slabsB4Beams orribbed one-way slabsB4B4B3Column-5230-0Bean-SimplysupportedU/16-Slab MarkB4B4B4B3B30'-0"BIU/18.5B2B2BI-GirderTABLE 9.5(a) - MINIMUM THICKNESS OFNONPRESTRESSED BEAMS OR ONE-WAY SLABSUNLESS DEFLECTIONS ARE CALCULATEDAEMinimum thickness, hOne endcontinuous continuous CantileverMembers not supporting or attached to partitions or otherconstruction likely to be damaged by large deflections4/20(124€284/10Both ends/2113-4¹40-013'-4'21/8Notes:Values given shall be used directly for members with normalweight concreteand Grade 60 reinforcement. For other conditions, the values shall be modifiedas follows:a) For lightweight concrete having equilibrium density, We, in the range of 90to 115 lb/ft³, the values shall be multiplied by (1.65 -0.005 wc) but not lessthan 1.09.b) For fy other than 60,000 psi, the values shall be multiplied by (0.4+ f/100,000).

Answered: D 30-0¹ Member Solid one- way slabs B4…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Per the ACI, what is the minimum girder depth (Select a uniform depth for all girders)

Material properties are:
- Concrete weight: wt = 150 pcf
- Concrete compressive strength: f’_c = 4000 psi
- Steel tensile strength: f_y = 60 ksi
- Stirrup consists of #4 bar
- Framing members are not exposed to weather or in contact with soil.

Answer from: 24", 30", 36", 28"

D
30-0¹
Member
Solid one-
way slabs
B4
Beams or
ribbed one-
way slabs
B4
B4
B3
Column-
52
30-0
Bean-
Simply
supported
U/16
-Slab Mark
B4
B4
B4
B3
B
30'-0"
BI
U/18.5
B2
B2
BI
-Girder
TABLE 9.5(a) - MINIMUM THICKNESS OF
NONPRESTRESSED BEAMS OR ONE-WAY SLABS
UNLESS DEFLECTIONS ARE CALCULATED
A
E
Minimum thickness, h
One end
continuous continuous Cantilever
Members not supporting or attached to partitions or other
construction likely to be damaged by large deflections
4/20
(124
€28
4/10
Both ends
/21
13-4¹
40-0
13'-4'
2
1/8
Notes:
Values given shall be used directly for members with normalweight concrete
and Grade 60 reinforcement. For other conditions, the values shall be modified
as follows:
a) For lightweight concrete having equilibrium density, We, in the range of 90
to 115 lb/ft³, the values shall be multiplied by (1.65 -0.005 wc) but not less
than 1.09.
b) For fy other than 60,000 psi, the values shall be multiplied by (0.4+ f/100,000).

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