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Prestressed Concrete Flexural Design Calculator for Double-Tee Sections
Analyst's Name
Project's Name
Company's Name
To get the recommended limits for each parameter, kindly hover over the respective textboxes
Modulus of elasticity of prestressing strands is taken as 28500 ksi
1
Length (L)
ft
2
Depth (h)
in
3
Flange Width (bf)
ft
4
Flange Thickness (hf)
in
5
Top Width for Each Web (bw₀)
in
6
Bottom Width for Each Web (bw₁)
in
7
Topping?
Yes
No
Topping Input
8
Topping Thickness (hₜₒₚ)
in
9
Compressive Strength of Precast Member at Release (f'ci)
ksi
10
Compressive Strength of Precast Member (f'c)
ksi
11
Compressive Strength of Topping (f'cₜₒₚ)
ksi
12
Concrete Exposure
Exposed to weather or in contact with ground
Not exposed to weather or in contact with ground
13
Severe/Corrosive Environment?
Yes
No
14
Max Aggregate Size
0.375
0.5
0.75
1
1.5
2
3
6
in
15
Distance from Bottom to CG of Strand Group at Support
in
16
Distance from Bottom to CG of Extreme Strand Layer at Support
in
17
Distance from Bottom to CG of Strand Group at Midspan
in
18
Distance from Bottom to CG of Extreme Strand Layer at Midspan
in
19
Strand Diameter (db)
in
20
Total Area of Strands (Aₚₛ)
in²
21
Tensile Strength of Strands (fₚᵤ)
250
270
ksi
22
Ratio of Initial Prestress to Tensile Strength of Strands (fₚᵢ/fₚᵤ)
23
Immediate Prestressing Loss at Release
%
24
Total Prestressing Loss
%
25
Density of Precast Member
lb/ft³
26
Density of Topping
lb/ft³
27
Superimposed Dead Load?
Yes
No
Dead Load Input
28
Uniformly-Distributed Superimposed Dead Load
lb/ft²
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Ultimate Flexural Capacity
0
kip.ft
Maximum Uniformly-Distributed Superimposed Live Load
Maximum Uniformly-Distributed Total Superimposed Load
0
lb/ft²
10
lb/ft²
Immediate Camber at Release
Camber at Erection
Camber at Erection under All Dead Loads
Final Time-Dependent Camber under Dead Loads
Final Time-Dependent Camber under Dead and Live Loads
0
in
0
in
0
in
0
in
0
in
