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<div class="gmail_quote">Hi everyone,</div>
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<div class="gmail_quote">I&#39;m hosting a talk today at 11AM on using techniques from optimization and computer graphics to design masonary buildings.</div>
<div class="gmail_quote">I realize this is off topic for most of us, but I saw this work presented at MIT a few weeks ago and was so blown away that I invited Emily to present here at BU.</div>
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<div class="gmail_quote">So, if you have some time today, you might enjoy attending this talk.</div>
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<div class="gmail_quote">Sharon</div>
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<p style="TEXT-ALIGN: center"><font face="verdana, sans-serif"><span style="FONT-SIZE: small">Boston University -- Computer Science Department<br><br></span></font><font face="verdana, sans-serif"><span style="FONT-SIZE: small"></span></font><font face="verdana, sans-serif"><span style="FONT-SIZE: small"><b>C O L L O Q U I U M</b></span></font><font face="verdana, sans-serif"><span style="FONT-SIZE: small"><b><br>

</b><br>Friday, October 21, 2011<br>11:00 am - 12:00 pm<br>MCS 148</span></font></p></div>
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<div style="FONT-SIZE: medium; FONT-FAMILY: Verdana">Design Of Structurally-Sound Masonry Buildings Using 3D Static Analysis</div></font>
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<div style="TEXT-ALIGN: center"><font face="verdana, sans-serif"><span style="FONT-SIZE: large">Emily Whiting</span></font></div></b></td></tr></tbody></table></div></div></div></div></div></div></div></div></div></div></div>

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<div style="FONT-FAMILY: Verdana">In the design of buildings, structural analysis is traditionally performed after the aesthetic design has been determined and has little influence on the overall form. This thesis presents methods to integrate architectural design and structural analysis. While existing tools focus on providing an analysis of the stress state, the proposed methods focus on geometry and equilibrium to obtain forms that are more structurally sound. The feasibility of masonry structures is modeled using a novel penalty formulation, assuming a rigid-block behavior of masonry. Two methods were developed that apply this model of feasibility to structural optimization. </div>


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<div style="FONT-FAMILY: Verdana">In the first approach, structural feasibility is introduced into procedural modeling of buildings. A set of designated free parameters are automatically tuned to achieve structural feasibility constraints. It is demonstrated how this allows for more realistic structural models that can be interacted with in physical simulations.</div>


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<div style="FONT-FAMILY: Verdana">In the second approach, a closed form derivation of structural gradients is presented that measures the change in stability of a building with respect to geometry modifications. The method computes the gradient of structural feasibility constraints, parameterized by vertex modifications. The gradients are visualized as interaction tools, giving user-guidance for effectively modifying a structural design. User-controlled constraints, formulated as penalty functions, are incorporated so that the user can explore variations of structurally feasible designs.</div>


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<div style="FONT-FAMILY: Verdana"><b>Bio: </b>Emily Whiting recently completed her PhD at MIT, jointly in the departments of Computer Science (Graphics) and Architecture (Structural Engineering). Her research focuses on optimization techniques for structural design of architecture, and mechanics of masonry structures. She received her MS in Design &amp; Computation from MIT&#39;s Department of Architecture, where she studied automatic interpretation of CAD drawings and building navigation algorithms. She received her BASc in Engineering Science from the University of Toronto. Emily has also worked with the National Research Council of Canada on image-based modeling of buildings for cultural heritage applications. Her research has been supported by the NSERC Canada Doctoral Fellowship and the MIT Presidential Fellowship.</div>

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<div style="FONT-FAMILY: Verdana"><b>Host: </b>Sharon Goldberg</div></div></div></div></font></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>

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</div><br></div></div></div><br><br clear="all"><br>-- <br>Sharon Goldberg<br>Computer Science, Boston University<br><a href="http://www.cs.bu.edu/~goldbe" target="_blank">http://www.cs.bu.edu/~goldbe</a><br>