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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Curtain walls only look curved! Glass panes don’t like to be curved.
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Something that might be worth looking into for complex shapes is drawing the geometry in Revit then using the Revit -> gbXML -> green building studio -> eQuest
 workflow if you have access to that software. If you do a bit of googling this is something that has been tried and documented by several people. The ease of geometry creation in revit can make it worth doing for large buildings with creative shapes. You can
 also pop in the zone names, people, lights and equipment in revit while you’re  at it.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black">Brendan Hall,  PE, LEED AP
</span><span style="font-size:8.0pt;font-family:"Calibri","sans-serif";color:black">BD+C</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black">Engineer, Mechanical<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:13.5pt;font-family:"Arial","sans-serif";color:red">karpinski<br>
</span><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#1F497D">ENGINEERING</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><br>
3135 Euclid Avenue<br>
Cleveland, OH  44115<br>
</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:red">P</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"> 
<a href="tel:216.391.3700" target="_blank">216.391.3700</a> Ext 3111<br>
</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:red">E</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy"> 
</span><u><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:blue"><a href="mailto:bhall@karpinskieng.com" target="_blank" title="mailto:myuhasz@karpinskieng.com">bhall@karpinskieng.com</a></span></u><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:blue"><br>
</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:red">W
</span><u><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:blue">www.<a href="http://www.karpinskieng.com/" target="_blank" title="http://www.karpinskieng.com/">karpinskieng.com</a></span></u><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Nick Caton<br>
<b>Sent:</b> Tuesday, July 23, 2013 10:43 AM<br>
<b>To:</b> m zahid; e quest<br>
<b>Subject:</b> Re: [Equest-users] round or curved buildings<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">An image for reference:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><img border="0" width="167" height="301" id="Picture_x0020_2" src="cid:image002.jpg@01CE8796.7A0E6150" alt="http://t2.gstatic.com/images?q=tbn:ANd9GcRZYN52BkR6EQhDVqih0wfSBKf5bEDUc-InaclxEkvyg2zRGGiv"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">On a first pass, I would use the wizards to approximate the shape simply using a series of concentric segmented circles of increasing/decreasing diameter for
 each floor.  The end result would look something like a stack of pancakes in 3D view.  If you set the exterior surfaces as not self-shading, and are mindful to not create unintended exterior roof/floor surfaces for each layer, you would end up with a pretty
 fair approximation for the envelope loads, by my estimation.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">With (much) time allowing, I might take the same result post-wizards and go further by determining appropriate tilt angle and height properties for each floor’s
 exterior walls to better match the curvature of the envelope.  This end result is still made up of a series of rectangular facets, so there would be some “gaps” in the 3D view along the tilted edges.  This exercise, and particularly the following application
 of those inputs to all exterior wall surfaces post wizards, can reasonably be expected to take a
<u>lot</u> of time.  For an otherwise large/complex building I’d carefully weigh the anticipated accuracy gains before investing all that time that could be spent on more pertinent things in the model.  Keep in mind post-wizard envelope edits like this can
 generally be done after everything else is completed in the model.  Preferably before you make a copy for a LEED baseline, of course.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">To take this to the sidewalk’s end:  I anticipate the compounded difficulty of creating custom quadrilaterals (one per level) to close the gaps mentioned above
 would be more work that it would be worth.  Even so, it would be an iterative effort as you’d still need to figure out and apply the tilt inputs to each facet prior to defining/assigning the custom polygons.  Also consider that while you can do all kinds of
 fun stuff with exterior wall surfaces, there are limits to what you can do with their child windows – I don’t believe there’s any way to assign a custom polygon shape to a window.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I think that about covers it!  If you don’t mind sharing, I’m sure it would be instructive to others for you to share what approximations you determined appropriate,
 and a screenshot of the model – that envelope sounds like an interesting challenge to say the least!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">~Nick<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><img border="0" width="119" height="37" id="Picture_x0020_1" src="cid:image003.jpg@01CE8796.7A0E6150" alt="cid:489575314@22072009-0ABB"></span><b><span style="font-size:11.0pt;font-family:"Stylus BT","sans-serif";color:#2D4D5E"><o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Stylus BT","sans-serif";color:#2D4D5E"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Stylus BT","sans-serif";color:#2D4D5E">NICK CATON, P.E.<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Calibri","sans-serif";color:#CC9900">SENIOR ENGINEER<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Calibri","sans-serif";color:#CC9900"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E">Smith & Boucher Engineers</span><span style="font-size:7.5pt;color:#CC9900"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E">25501 west valley parkway, suite 200<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E">olathe, ks 66061<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E">direct 913.344.0036<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:#2D4D5E">fax 913.345.0617<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="www.smithboucher.com" title="blocked::www.smithboucher.com"><span style="font-size:10.0pt">www.smithboucher.com</span></a></span><u><span style="font-size:10.0pt;font-family:"Calibri","sans-serif";color:blue">
</span></u><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a> [<a href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>m zahid<br>
<b>Sent:</b> Tuesday, July 23, 2013 7:12 AM<br>
<b>To:</b> e quest<br>
<b>Subject:</b> [Equest-users] round or curved buildings<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-family:"Calibri","sans-serif"">hi  <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri","sans-serif"">can anybody tell me how can i model the vertical curved building in e quest like "The Gherkin " building in London<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri","sans-serif"">thanks <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri","sans-serif""><o:p> </o:p></span></p>
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