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viiiAppendix TablePageTable A.5 Detailed Investigation of the Strength of Wrought Iron Bars Part II,Reported by Beardslee……………………………………………………………163Table A.6 Tensile Strength Data Reprted by Fairbairn………………..…………….…183Table A.7 Tensile Strength Data Reported by Humber………………………….….….184Table B.1 Example Historic Wrought Iron Bridge Maintenance Survey………………186Table B.2 Results From Wrought Iron Bridge Survey from State DOTs and Counties..187
iiACKNOWLEDGMENTSThe research project was financially supported by the Federal HighwayAdministration and the Indiana Department of Transportation through the auspices of theJoint Transportation Research Program and the Indiana Local Technical AssistanceProgram. The authors would like to express their grateful acknowledgment forsponsorship of this research.The valuable suggestions and comments provided by the Study AdvisoryCommittee and the staff of the Local Technical Assistance program are sincerelyappreciated. The members of the Study Advisory Committee include Mr. ScottNewbolds and Mr. Tony McClellan from the Indiana Department of Transportation, andMr. Matt Fuller from the Federal Highway Administration.Sincere thanks are also due to Jim Barker, P.E. from J.A. Barker Engineering, Inc.for the bountiful donation of testing material and vast amount of knowledge, assistanceand direction. The authors would also like to thank Dan McCain from the Wabash andErie Canal Park in Delphi, Indiana for his helpful donation of testing material.Steve Weintraut, James Cooper and Perry Green are thanked for their advice andexpertise offered during the development and conduct of this project. Ross Brown, fromthe Village Blacksmith Ironworks, is also acknowledged for his assistance in heatstraightening of the wrought iron members, delivering of testing material, and for hisextensive knowledge of repair and reconstruction of historic bridges.
Page 1 and 2: Purdue UniversityPurdue e-PubsJTRP
Page 3: 1. Report No. 2. Government Accessi
Page 6 and 7: epairing a bent wrought iron tensio
Page 8 and 9: vPageCHAPTER 3TEST PROCEDURES FOR M
Page 10 and 11: ixLIST OF FIGURESFigurePageFigure 1
Page 12 and 13: xiFigurePageFigure 3.30 Top View of
Page 14 and 15: xiiiFigurePageFigure 5.12 Typical T
Page 16 and 17: xvAppendix FigurePageFigure D.7 Ini
Page 20 and 21: iiiThe authors would also like to t
Page 22 and 23: 2but also what material properties
Page 24 and 25: 4microstructure of the metal. The c
Page 26 and 27: 62. LITERATURE SEARCHBefore experim
Page 28 and 29: 8imperfections, the performance of
Page 30 and 31: 10wrought iron. Adding the slag aft
Page 32 and 33: 12method for manufacturing wrought
Page 34 and 35: 14patents for their process and tra
Page 36 and 37: 16This method of testing of structu
Page 38 and 39: 18plot of this percent elongation d
Page 40 and 41: 20significant variation in the perc
Page 42 and 43: 22The practice of restoring histori
Page 44 and 45: 24Elleby, Wallace W. Sanders, F. Wa
Page 46 and 47: 26From all the surveys that were di
Page 48 and 49: 28Table 2.1 Average Ultimate Streng
Page 50 and 51: 30Figure 2.3 Wrought Iron “Sponge
Page 52 and 53: 32Histogram of Kirkaldy Wrought Iro
Page 54 and 55: 34Percent Occurance in Range - %45.
Page 56 and 57: 3660Combined Wrought Iron BarsTensi
Page 58 and 59: 38The Bell Ford Bridge consisted of
Page 60 and 61: 40Two. These samples were taken fro
Page 62 and 63: 42specimens were of constant cross
Page 64 and 65: 44Along with rectangular tensile co
Page 66 and 67: 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
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58readings, load cell readings and
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60Figure 3.3 Donated Eyebars 4 and
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62Figure 3.7 Heated Areas in Blue o
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64Figure 3.11 Detail Used in Groove
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66900080007000y = 27.153xR 2 = 0.99
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68Figure 3.19 Charpy Impact Testing
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70Figure 3.23 Eyebar Connection in
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72Figure 3.27 Eyebar A After Filler
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74Figure 3.31 Side View of Finished
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76Figure 3.35 Front View of Eyebar
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78strength from the existence of pe
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80The carbon content present in the
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82value may not be very accurate bu
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84strengths was found to be 29,940
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86wrought iron bars were investigat
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88stresses are induced. These perma
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90toughness the material. The test
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92From the finite element analysis,
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94Table 4.1 Chemical Analysis of Ey
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96Table 4.3 Tensile Coupon Test Res
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98Table 4.5 Charpy Impact Test Resu
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100Table 4.7 Comparison of Strain G
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102Figure 4.1 Typical Micrograph of
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104Figure 4.5 Fracture Surface of D
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106Comparison of Tensile Strengthfo
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108Combined Wrought Iron Bar Histor
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110Figure 4.17 Macrograph of Weld u
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112Figure 4.21 Cleavage Fracture of
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Figure 4.25 Elongation of Hole in E
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116signs on or near the bridge that
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118testing of historic wrought iron
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120so that they would act in symmet
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122The reasons for the differences
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124The second corrosion pattern mod
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126Keating (1984) stated that the s
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128charcoal fire until it is red ho
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130Figure 5.3 Picture of Bottom Cho
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132Figure 5.7 Using Force After Usi
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134Figure 5.11 Reassembling a Pin C
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1366. SUMMARY, CONCLUSIONS AND IMPL
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138rectangular in shape. These eyeb
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140were joined together with a full
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1424. The Charpy impact energy of t
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144connections are unsymmetrical, i
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146LIST OF REFERENCESAASHTO (1998).
Page 168 and 169:
148Hodgkinson, Eaton (1840). Experi
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150Appendix A. Data Collected From
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152Table A.1 Wrought Iron Bar Tensi
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154Table A.1 (continued) Wrought Ir
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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
Page 216 and 217:
196Figure C.1 Diagrams Showing Loca
Page 218 and 219:
198Figure C.3 Heating of Eyebar fro
Page 220 and 221:
200Figure C.7 Double V Butt Joint u
Page 222 and 223:
202Figure C. 11 Welded Tensile Coup
Page 224 and 225:
204Figure C.15 Tensile Coupon from
Page 226 and 227:
206Figure C.19 Cooling Bath with Su
Page 228 and 229:
208Figure C.23 Side View of Eyebar
Page 230 and 231:
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
Page 236 and 237:
216Figure D.1 Weld Joint Detail Use
Page 238 and 239:
Figure D.5 Completed Weld Before Su
Page 240 and 241:
220Figure D.7 Initial Pass Pattern
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