<html> <head> <title>Rule 61:08:09:0A Guide to Riveted Joint Efficiencies.</title> <META NAME="Keywords" Content="Administrative Rules 61:08:09:0A"> <META NAME="Description" Content="Administrative Rules 61:08:09:0A Guide to Riveted Joint Efficiencies."> <meta name=Generator content="Microsoft Office HTML Filter 2.0"> <meta http-equiv=Content-Type content="text/html; charset=windows-1252"> <meta name=Originator content="Microsoft Word 10"> <title>DEPARTMENT OF PUBLIC SAFETY</title> <style> <!-- --> </style> </head> <body lang=EN-US> <div> <p align=center>DEPARTMENT OF PUBLIC SAFETY</p> <h2>HISTORIC POWER BOILERS</h2> <h2>GUIDE TO RIVETED JOINT EFFICIENCIES</h2> <p align=center>Chapter 61:08:09</p> <p align=center>APPENDIX A</p> <p align=center>SEE: §61:08:09:13</p> <p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b>Source:</b> 23 SDR 139, effective March 5, 1997.</p><br clear=all> </span> <p align=center><b>APPENDIX A</b></p> <p align=center><b>A GUIDE TO RIVETED JOINT EFFICIENCIES</b></p> <p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The following table of efficiencies shows the <b>average</b> for the different types of joints. The values are only approximate because the efficiency depends on the ultimate strength of the plate and rivet, the thickness of the plates, and the diameter of the rivets.</p> <table border=1 cellspacing=0 cellpadding=0> <tr> <td width=186 valign=top> <p><b>Type of Riveting</b></p> </td> <td width=84 valign=top> <p><b>Lap</b></p> </td> <td width=84 valign=top> <p><b>Butt</b></p> </td> </tr> <tr> <td width=186 valign=top> <p><b>&nbsp;</b></p> </td> <td width=84 valign=top> <p><b>&nbsp;</b></p> </td> <td width=84 valign=top> <p><b>&nbsp;</b></p> </td> </tr> <tr> <td width=186 valign=top> <h1>Single</h1> </td> <td width=84 valign=top> <h1>58</h1> </td> <td width=84 valign=top> <h1>&nbsp;</h1> </td> </tr> <tr> <td width=186 valign=top> <p>&nbsp;</p> </td> <td width=84 valign=top> <p>&nbsp;</p> </td> <td width=84 valign=top> <p>&nbsp;</p> </td> </tr> <tr> <td width=186 valign=top> <p>Double</p> </td> <td width=84 valign=top> <p>70</p> </td> <td width=84 valign=top> <p>82</p> </td> </tr> <tr> <td width=186 valign=top> <p>&nbsp;</p> </td> <td width=84 valign=top> <p>&nbsp;</p> </td> <td width=84 valign=top> <p>&nbsp;</p> </td> </tr> <tr> <td width=186 valign=top> <p>Triple</p> </td> <td width=84 valign=top> <p>74</p> </td> <td width=84 valign=top> <p>88</p> </td> </tr> <tr> <td width=186 valign=top> <p>&nbsp;</p> </td> <td width=84 valign=top> <p>&nbsp;</p> </td> <td width=84 valign=top> <p>&nbsp;</p> </td> </tr> <tr> <td width=186 valign=top> <p>Quadruple</p> </td> <td width=84 valign=top> <p>94</p> </td> <td width=84 valign=top> <p>&nbsp;</p> </td> </tr> </table> </div> </body> </html>