Analysis of Composite Fiber Reinforced Concrete Slabs

Authors: Scott Tomlinson and Levon Minnetyan P.E., Member ASCE

Presenter: Scott Tomlinson

Principal Investigator: Levon Minnetyan

Objective

• Investigate the Design of Reinforced Concrete Slabs Without Steel– Use Fiberglass Base– Increase Slab Life Span– Increase Slab Strength

• Use CODSTRAN Computer Simulation– Avoid Curing Time for Concrete– Make Changes Easy to Enact

Methods

• Validate Computer Modeling Technique

• Extend Model to the Desired Design– Multiplex

• Include Variations In:– Loading - Concentrated Vs. Distributed– Fiber Depth

• Expand Fiber Reinforcements Widthwise

Calibration Moment vs Deflection

0

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0 2 4 6 8 10 12 14 16 18 20 22

Deflection (mm)

Mo

me

nt

(kN

m)

dat1

dat2

dat3

dat4

actual

Moment vs Deflection

0

1

2

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0 2 4 6 8 10 12 14 16 18 20 22

Deflection (mm)

Mo

me

nt

(kN

m)

dat5

dat6

dat7

dat8

dat9

dat10

actual

Moment vs Deflection

0

1

2

3

4

5

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9

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0 2 4 6 8 10 12 14 16 18 20 22

Deflection (mm)

Mo

me

nt

(kN

m)

dat11

dat12

dat13

dat14

dat15

dat16

dat17

dat18

actual

Moment Vs. Deflection

0

5

10

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35

0 2 4 6 8 10 12 14 16

Deflection (mm)

Mo

me

nt

(kN

m)

Origional

Origional x2

x2 width x2

x2 withcenter force

x2 with T'sshortened

x2 with T's.5" Taller

Tests

Next Steps

• Finish Evaluating Variations in Fiber Depth

• Expand Width Again– Run Distributed Loads– Run Concentrated Loads– Vary Fiber Depth on each

• Estimated Computer Time, 6 more days

Any Questions?

Thanks Dr. Minnetyan!

Thank you for your time.