Design of structurally-sound masonry buildings using 3D static analysis
Name
783790519-MIT.pdf
Description
Full printable version
Size
12.82 MB
Format
Adobe PDF
Checksum (MD5)
b39fd86a2fd3195e498ac03d717fdd9f
Author(s)
Whiting, Emily Jing Wei
Advisor(s)
John Ochsendorf and Frédo Durand.
Date Issued
2012
Publisher
Massachusetts Institute of Technology
Abstract
In the design of buildings, structural analysis is traditionally performed after the aesthetic design has been determined and has little in uence 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. 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. 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.
Description
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Architecture, 2012.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (p. 95-100).
Subjects
Architecture.
MIT Department
Massachusetts Institute of Technology. Department of Architecture
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