Corrugated Wood Composite Panels For Structural Decking

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List of TablesTable 1: Input properties of FFSS plate for convergence studies..................................... 39Table 2: Deflection error of single-span original and corrected beam models from FEmodel......................................................................................................................... 50Table 3: Deflection error of two-span original and corrected beam models from FEmodel......................................................................................................................... 55Table 4: Specifications for 16”x16” corrugated panels. ................................................... 70Table 5: Test layout for 16"x16" corrugated panels. ........................................................ 71Table 6: Moisture content and density of weak axis bending test specimens. ................. 73Table 7: Sensitivity studies of Poisson’s’s ratio of 3"x16" weak axis bending specimens.................................................................................................................................... 75Table 8: Sensitivity studies of thickness of 3"x16" weak axis bending specimens.......... 76Table 9: Sensitivity studies of shear modulus of 3"x16" weak axis bending specimens. 77Table 10: Sensitivity studies of MOE of 3"x16" weak axis bending specimens.............. 78Table 11: FE models for weak axis bending of 3"x16" specimens with different MOE andthicknesses. ............................................................................................................... 79Table 12: MOE and weak axis bending stiffness of 3”x16” specimens estimated using FEmodels. ...................................................................................................................... 80Table 13: MOE, bending stiffness and strength of weak axis bending tests, estimatedusing beam models.................................................................................................... 83Table 14: Moisture content and density of strong axis bending test specimens............... 85Table 15: Sensitivity studies of Poisson’s ratio of 16"x16" strong axis bendingspecimens.................................................................................................................. 88Table 16: Sensitivity studies of thickness of 16"x16" strong axis bending specimens. ... 89Table 17: Sensitivity studies of MOE of 16”x16" strong axis bending specimens. ......... 90Table 18: Sensitivity studies of shear modulus of 16"x16" strong axis bending specimens.................................................................................................................................... 91Table 19: FE models for strong axis bending of 16"x16" specimens with different MOEand thicknesses.......................................................................................................... 93xiii
Table 20: MOE and strong axis bending stiffness of 16”x16” specimens estimated usingFE models. ................................................................................................................ 94Table 21: Bending stiffness and bending strength of strong axis bending test estimatedusing beam theory. .................................................................................................... 95Table 22: Average moisture content and densities for the shear and end bearing testsspecimens.................................................................................................................. 97Table 23: Maximum shear and moment for the shear and strong axis bending tests. ...... 99Table 24: Estimation of shear strength for 16"x16" corrugated panel............................ 100Table 25: Uniform load capacities (psf) of the 16”x16” corrugated panel at 0.02" ofdeformation under compression.............................................................................. 104Table 26: Average moisture content and densities for edge test specimens................... 105Table 27: Average stiffness and average maximum load for edge test specimens......... 106Table 28: Bending stiffness and strength of corrugated panel estimated from smallspecimen testing...................................................................................................... 108Table 29: Panel design bending stiffness and strength for APA Rated Sturd-I-Floor.... 108Table 30: Flexure test results of 4'x8' corrugated panel.................................................. 117Table 31: Bare corrugated panel single span bending test results. ................................. 122Table 32: Bare corrugated panel two-span continuous bending test results................... 125Table 33: Input parameters of the FE model for single-span partial composite deckbending test. ............................................................................................................ 132Table 34: Partial composite deck single-span bending test results................................ 136Table 35: Input parameters of the FE model for two-span partial composite deck bendingtest........................................................................................................................... 140Table 36: Partial composite deck double-span bending test results. .............................. 142Table 37: Test results of composite T-beams. ................................................................ 145Table 38: Material properties of the partial composite T-beam finite element mesh..... 153Table 39: Comparison of partial composite T-beam FE and beam models.................... 154Table 40: System effect of nailed-glued T-beam assembly with corrugated compositedeck system............................................................................................................. 157Table 41: Section properties of corrugated panel. .......................................................... 166xiv
Page 1 and 2: Corrugated Wood Composite Panels Fo
Page 3 and 4: AcknowledgementsI would like to exp
Page 5 and 6: Molding trials on 16”x16” panel
Page 7 and 8: Table of ContentsAbstract..........
Page 9 and 10: Corrugated Panel Single Span Test..
Page 11 and 12: List of FiguresFigure 1: Corrugated
Page 13 and 14: Figure 48: Load-displacement curves
Page 15: Figure 93: Mock-up floor constructi
Page 19 and 20: IntroductionWood flake composite pa
Page 21 and 22: process needed to be refined in ord
Page 23 and 24: 4. Construct and test the performan
Page 25 and 26: system (OSB top layer nailed-glued
Page 27 and 28: In geometry design studies, four ge
Page 29 and 30: Similarly, the relative strength ca
Page 31 and 32: 14120Relative Stiffness and Relativ
Page 33 and 34: 21.51.8Moldability Factor1.451.4Mol
Page 35 and 36: with as little modification to the
Page 37 and 38: uniform line loads, or concentrated
Page 39 and 40: subject to loads. Thus, thin shell
Page 41 and 42: FE models are used to analyze both
Page 43 and 44: with 4-node thin shell elements. In
Page 45 and 46: Orthotropic Plate ModelTypical ligh
Page 47 and 48: 2 2∂∆( x, y) ∂∆( x, y)Myy(
Page 49 and 50: 1.41.2Fourier series approximation
Page 51 and 52: 2qLnπqn( x) = sin( yo) for n= 1,2,
Page 53 and 54: Free-Free and Simply Supported (FFS
Page 55 and 56: ∫02 2⎛ ∂∆n ∂δ∆n 2 ∂
Page 57 and 58: Convergence studies of FFSS PlatesT
Page 59 and 60: 0.440.4380” 0.4292” 0.4434”0.
Page 61 and 62: Beam ModelIn simple beam theory, th
Page 63 and 64: Qz ( )⎧⎪⎪⎪h− th+t2 2⎛ 2
Page 65 and 66: ⎡h+t2⎢ 12 ⎥first= 2 ⎢ ( τf
Page 67 and 68:
of elasticity (psi) and shear modul
Page 69 and 70:
3∆ ≈ PL PLFEcb 1cs148EI+ 4GA(63
Page 71 and 72:
Two-span ModelFor the two-span cond
Page 73 and 74:
was encountered. The error was larg
Page 75 and 76:
Composite Deck Beam ModelBending st
Page 77 and 78:
of the corrugated panel. Substituti
Page 79 and 80:
Cefffor a specific bond, such as a
Page 81 and 82:
if the closing gap was at a distanc
Page 83 and 84:
weight of panel at the time of test
Page 85 and 86:
Green aspen logs were used to produ
Page 87 and 88:
Gauge Pressure750 psi020 180 210Tim
Page 89 and 90:
Testing of 16”x16” PanelsThe st
Page 91 and 92:
0.10 or lower. This indicates that
Page 93 and 94:
zxy0.25”x0.25” 4-nodethin shell
Page 95 and 96:
700Load/Deflection (lbs/in), y60050
Page 97 and 98:
Load/Deflection (lbs/in), y60050040
Page 99 and 100:
Beam ModelPPLL eqFigure 45: Equival
Page 101 and 102:
Table 13: MOE, bending stiffness an
Page 103 and 104:
The moisture contents of the specim
Page 105 and 106:
Finite Element ModelFE models were
Page 107 and 108:
The panel skin thickness also exhib
Page 109 and 110:
The load-to-deflection ratio can di
Page 111 and 112:
used for each thickness level. The
Page 113 and 114:
The smallest span used in the calib
Page 115 and 116:
Test ResultsThe average moisture co
Page 117 and 118:
Table 23: Maximum shear and moment
Page 119 and 120:
Maximum Moment (lbf-in/ft)500040003
Page 121 and 122:
Test ResultsFigure 61: Load-deflect
Page 123 and 124:
Test ProceduresTwo edge test assemb
Page 125 and 126:
Lateral Density ProfileThe 16”x16
Page 127 and 128:
Manufacture of 4ft x 8ft Corrugated
Page 129 and 130:
as the carrier with an idea of desi
Page 131 and 132:
Full-Scale Panel TestingBending pro
Page 133 and 134:
approximate the solution for deflec
Page 135 and 136:
Table 30: Flexure test results of 4
Page 137 and 138:
Load22 ½” o.c. or30 ½” o.c.24
Page 139 and 140:
ending stiffness were both over 400
Page 141 and 142:
Corrugated Panel Two-Span Continuou
Page 143 and 144:
the FE model estimation. The averag
Page 145 and 146:
Strength Axis Static Bending of 2
Page 147 and 148:
Test ProceduresNon-destructive flex
Page 149 and 150:
used as the element thicknesses for
Page 151 and 152:
of the partial composite test. Figu
Page 153 and 154:
1 .10 4 FE Model (average)Load/Defl
Page 155 and 156:
Composite Deck Two-Span Continuous
Page 157 and 158:
ick elements for adhesive, etc.) us
Page 159 and 160:
1.6 .10 4 FE Model (average)1.4 . 1
Page 161 and 162:
Composite T-BeamComposite nailed-gl
Page 163 and 164:
ottom flange of the I-joist. A tota
Page 165 and 166:
EIwandEIfare the bending stiffnesse
Page 167 and 168:
whereL adis the length of the adhe
Page 169 and 170:
EIuis the bending stiffness of the
Page 171 and 172:
Table 38: Material properties of th
Page 173 and 174:
System BehaviorThe bending stiffnes
Page 175 and 176:
Table 40: System effect of nailed-g
Page 177 and 178:
A’Joints of OSBunderlayment(solid
Page 179 and 180:
¼” dia. AFG-01 adhesiveFigure 92
Page 181 and 182:
lockings were also installed at the
Page 183 and 184:
Comparison to Traditional Floor Sys
Page 185 and 186:
The baseline flexural capacities of
Page 187 and 188:
Conclusions and RecommendationsConc
Page 189 and 190:
The potential of using the shallow
Page 191 and 192:
dj= depth of I-joist (in)E = modulu
Page 193 and 194:
h = channel depth of the corrugated
Page 195 and 196:
Sc= section modulus of the corrugat
Page 197 and 198:
τfirst= first order shear stressϖ
Page 199 and 200:
Howard, J.L. (2001). “U.S. Forest
Page 201 and 202:
Appendix A. Moment of Inertia of Co
Page 203 and 204:
Appendix B. Moldability FactorConce
Page 205 and 206:
Appendix D. FFSS Plate Under Line L
Page 207 and 208:
Ff = @(x)2.*qo./b.*sin(beta(k).*yo)
Page 209 and 210:
Appendix F. Test Data for 16”x16
Page 211 and 212:
Edge Point LoadPanel Type-ALower de
Page 213 and 214:
Appendix H. Lateral Density Profile
Page 215 and 216:
Panel:Date:5-4November 11, 2002Widt
Page 217 and 218:
08LT24”x32”08RT24”x64”11LT2
Page 219 and 220:
30T48”x48”35LT24”x64”35RT24
Page 221 and 222:
Nominal 32” Two-Span TestPanelNo.
Page 223 and 224:
Nominal 24” Two-Span Composite Te
Page 225 and 226:
Appendix K. Shear Modulus of I-Jois
Page 227:
Appendix L. Allowable Moment Estima
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Corrugated Wood Composite Panels For Structural Decking

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