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108Combined Wrought Iron Bar Historic Data and Testing ResultsTensile Tests - Percent Elongation403530Standard DeviationPercent Elongation252015Standard DeviationMean = 23.2%105Second Standard Deviation = 8%00 100 200 300 400 500 600Sample (Random)Kirkaldy Data Beardslee Data Testing Results (eyebar) Testing Results (round)Figure 4.13 Comparison of Historical to Testing Results for Percent ElongationHeat Straightened Specimen Comparison of Tensile Strength5500050000Ultimate Strength (psi)450004000035000300000 1 2 3 4 5 6 7 8 9 10SampleRegular SpecimensHeat Straightened SpecimensFigure 4.14 Comparison of Heated Straightened Specimens for Tensile Strength
109Heat Straightened Specimen Comparison of Percent Elongation2520Percent Elongation %1510500 1 2 3 4 5 6 7 8 9 10SampleRegular SpecimensHeat Straightened SpecimensFigure 4.15 Comparison of Heated Straightened Specimens for Percent ElongationFigure 4.16 Mechanically Straightened Coupon Resulting Percent Elongation
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Purdue UniversityPurdue e-PubsJTRP
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1. Report No. 2. Government Accessi
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epairing a bent wrought iron tensio
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vPageCHAPTER 3TEST PROCEDURES FOR M
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ixLIST OF FIGURESFigurePageFigure 1
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xiFigurePageFigure 3.30 Top View of
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xiiiFigurePageFigure 5.12 Typical T
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xvAppendix FigurePageFigure D.7 Ini
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viiiAppendix TablePageTable A.5 Det
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iiiThe authors would also like to t
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2but also what material properties
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4microstructure of the metal. The c
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62. LITERATURE SEARCHBefore experim
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8imperfections, the performance of
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10wrought iron. Adding the slag aft
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12method for manufacturing wrought
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14patents for their process and tra
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16This method of testing of structu
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18plot of this percent elongation d
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20significant variation in the perc
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22The practice of restoring histori
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24Elleby, Wallace W. Sanders, F. Wa
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26From all the surveys that were di
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28Table 2.1 Average Ultimate Streng
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30Figure 2.3 Wrought Iron “Sponge
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32Histogram of Kirkaldy Wrought Iro
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34Percent Occurance in Range - %45.
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3660Combined Wrought Iron BarsTensi
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38The Bell Ford Bridge consisted of
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40Two. These samples were taken fro
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42specimens were of constant cross
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44Along with rectangular tensile co
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46After the initial test loading wa
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483.6 Fatigue TestingTo develop a b
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50The final specimen category consi
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52This analysis was completed using
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54After the initial test was comple
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56completed, but before the surface
Page 78 and 79: 58readings, load cell readings and
Page 80 and 81: 60Figure 3.3 Donated Eyebars 4 and
Page 82 and 83: 62Figure 3.7 Heated Areas in Blue o
Page 84 and 85: 64Figure 3.11 Detail Used in Groove
Page 86 and 87: 66900080007000y = 27.153xR 2 = 0.99
Page 88 and 89: 68Figure 3.19 Charpy Impact Testing
Page 90 and 91: 70Figure 3.23 Eyebar Connection in
Page 92 and 93: 72Figure 3.27 Eyebar A After Filler
Page 94 and 95: 74Figure 3.31 Side View of Finished
Page 96 and 97: 76Figure 3.35 Front View of Eyebar
Page 98 and 99: 78strength from the existence of pe
Page 100 and 101: 80The carbon content present in the
Page 102 and 103: 82value may not be very accurate bu
Page 104 and 105: 84strengths was found to be 29,940
Page 106 and 107: 86wrought iron bars were investigat
Page 108 and 109: 88stresses are induced. These perma
Page 110 and 111: 90toughness the material. The test
Page 112 and 113: 92From the finite element analysis,
Page 114 and 115: 94Table 4.1 Chemical Analysis of Ey
Page 116 and 117: 96Table 4.3 Tensile Coupon Test Res
Page 118 and 119: 98Table 4.5 Charpy Impact Test Resu
Page 120 and 121: 100Table 4.7 Comparison of Strain G
Page 122 and 123: 102Figure 4.1 Typical Micrograph of
Page 124 and 125: 104Figure 4.5 Fracture Surface of D
Page 126 and 127: 106Comparison of Tensile Strengthfo
Page 130 and 131: 110Figure 4.17 Macrograph of Weld u
Page 132 and 133: 112Figure 4.21 Cleavage Fracture of
Page 134 and 135: Figure 4.25 Elongation of Hole in E
Page 136 and 137: 116signs on or near the bridge that
Page 138 and 139: 118testing of historic wrought iron
Page 140 and 141: 120so that they would act in symmet
Page 142 and 143: 122The reasons for the differences
Page 144 and 145: 124The second corrosion pattern mod
Page 146 and 147: 126Keating (1984) stated that the s
Page 148 and 149: 128charcoal fire until it is red ho
Page 150 and 151: 130Figure 5.3 Picture of Bottom Cho
Page 152 and 153: 132Figure 5.7 Using Force After Usi
Page 154 and 155: 134Figure 5.11 Reassembling a Pin C
Page 156 and 157: 1366. SUMMARY, CONCLUSIONS AND IMPL
Page 158 and 159: 138rectangular in shape. These eyeb
Page 160 and 161: 140were joined together with a full
Page 162 and 163: 1424. The Charpy impact energy of t
Page 164 and 165: 144connections are unsymmetrical, i
Page 166 and 167: 146LIST OF REFERENCESAASHTO (1998).
Page 168 and 169: 148Hodgkinson, Eaton (1840). Experi
Page 170 and 171: 150Appendix A. Data Collected From
Page 172 and 173: 152Table A.1 Wrought Iron Bar Tensi
Page 174 and 175: 154Table A.1 (continued) Wrought Ir
Page 176 and 177: 156Table A.2 (continued) Wrought Ir
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158Table A.3 Wrought Iron Angle Ten
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160Table A.4 (continued) Summary of
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162Table A.4 (continued) Summary of
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164Table A.5 (continued) Detailed I
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184Table A.7 Tensile Strength Data
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186Table B.1 Example Historic Wroug
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188DepartmentofTransportationIf you
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190CountyIf your organizationdoes m
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192County 16: County bridge inspect
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194State 13: Included in original d
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196Figure C.1 Diagrams Showing Loca
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198Figure C.3 Heating of Eyebar fro
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200Figure C.7 Double V Butt Joint u
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202Figure C. 11 Welded Tensile Coup
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204Figure C.15 Tensile Coupon from
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206Figure C.19 Cooling Bath with Su
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208Figure C.23 Side View of Eyebar
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210Figure C.27 Eyebar End Connectio
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212Appendix D. Welding Procedure fo
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214D.2 Filler Weld for Eyebar Conne
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216Figure D.1 Weld Joint Detail Use
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Figure D.5 Completed Weld Before Su
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220Figure D.7 Initial Pass Pattern
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