https://wici.porth.ac.uk/index.php?action=history&feed=atom&title=Atgyfnerthu_rhag_y_gwynt 2026-05-21T21:51:13Z Hanes diwygio'r dudalen hon ar y wici MediaWiki 1.28.0 https://wici.porth.ac.uk/index.php?title=Atgyfnerthu_rhag_y_gwynt&diff=5229&oldid=prev 2021-08-19T12:07:59Z

<p></p> <table class="diff diff-contentalign-left" data-mw="interface"> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;' lang='cy'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← At y diwygiad blaenorol</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Diwygiad 12:07, 19 Awst 2021</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Llinell 1:</td> <td colspan="2" class="diff-lineno">Llinell 1:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Gan fod y dechneg o gysylltu trawstiau a cholofnau mewn adeiladau aml lawr, sydd â sgerbwd ffrâm ddur, yn annigonol ar ben ei hunan er mwyn atgyfnerthu a gwrthsefyll grym gwynt ochrol, gall hyn arwain at ddymchwel, rhaid felly ychwanegu craffrwym [bracing] un ai o ddur neu goncrit. Os craffrwym dur ydyw, fel arfer mae hyn ar siap X ar ochrau’r adeilad.</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>Gan fod y dechneg o gysylltu trawstiau a cholofnau mewn adeiladau aml lawr, sydd â sgerbwd ffrâm ddur, yn annigonol ar ben ei hunan er mwyn atgyfnerthu a gwrthsefyll grym gwynt ochrol, gall hyn arwain at ddymchwel, rhaid felly ychwanegu craffrwym [bracing] un ai o ddur neu goncrit. Os craffrwym dur ydyw, fel arfer mae hyn ar siap X ar ochrau’r adeilad.</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Isod mae dwy enghraifft wahanol o atgyfnerthu.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Delwedd: Atgyfnerthu rhag y gwynt - a.jpg]]</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Delwedd: Atgyfnerthu rhag y gwynt - b.jpg]]</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>'''Owain Llywelyn'''</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>'''Owain Llywelyn'''</div></td></tr> </table>

DaiThomas https://wici.porth.ac.uk/index.php?title=Atgyfnerthu_rhag_y_gwynt&diff=4878&oldid=prev 2021-07-02T10:37:37Z

<p>Crëwyd tudalen newydd yn dechrau gyda &#039;Gan fod y dechneg o gysylltu trawstiau a cholofnau mewn adeiladau aml lawr, sydd â sgerbwd ffrâm ddur, yn annigonol ar ben ei hunan er mwyn atgyfnerthu...&#039;</p> <p><b>Tudalen newydd</b></p><div>Gan fod y dechneg o gysylltu trawstiau a cholofnau mewn adeiladau aml lawr, sydd â sgerbwd ffrâm ddur, yn annigonol ar ben ei hunan er mwyn atgyfnerthu a gwrthsefyll grym gwynt ochrol, gall hyn arwain at ddymchwel, rhaid felly ychwanegu craffrwym [bracing] un ai o ddur neu goncrit. Os craffrwym dur ydyw, fel arfer mae hyn ar siap X ar ochrau’r adeilad.<br /> <br /> '''Owain Llywelyn'''<br /> <br /> ==Llyfryddiaeth==<br /> ''“Barry’s Advanced Construction of Buildings”'', Stephen Emmitt a Christopher Gorse, Blackwell Publishing, ail argraffiad, tudalennau 266-268<br /> <br /> <br /> {{CC BY-SA}}<br /> [[Categori:Tirfesureg]]<br /> [[Categori:Tirfesureg Bur]]</div>

DaiThomas