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Paulino, Glaucio H. Zhang, Xiaojia 2014-05-30T17:06:42Z 2014-05-30T17:06:42Z 2016-09-22T20:59:31Z 2014-05 2014-05-30T17:06:42Z 2014-05 In this thesis, the generation of initial ground structures for generic domains in two and three dimensions are discussed. Two methods of discretization are compared: Voronoi-based discretizations and structured quadrilateral discretizations. In addition, a simple and effective member generation approach is proposed: the Macro-element approach; which can be implemented with both types of discretization. The features of the approach are discussed: efficient generation of initial ground structures; reduction in matrix bandwidth for global stiffness matrix; finer control of bar connectivity; and reduction of overlapped bars. Numerical examples are presented which display the features of the proposed approach, and highlight the comparison with literature results and traditional ground structure generation methods. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2014-05-02T12:51:17Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Zhang_Xiaojia.pdf: 2119901 bytes, checksum: d82a02120f7e01b9a6887fa6971d49a5 (MD5) Made available in DSpace on 2014-05-30T17:06:42Z (GMT). No. of bitstreams: 2 Xiaojia_Zhang.pdf: 2119901 bytes, checksum: d82a02120f7e01b9a6887fa6971d49a5 (MD5) license.txt: 4063 bytes, checksum: 7a4fd25f8161103ba7d76121ca29064b (MD5) Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Seth Robbins (robbins.sd@gmail.com) on 2014-05-30T17:09:53Z Item is restricted until 2016-05-30T17:09:03Z Restriction data tranferred 2014-07-01T11:39:14-05:00 Original Data Group with Access UIUC Users [automated] Release Date: 2016-05-30 12:09:03 UTC Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system U of I Only Restriction Lifted for Item 49778 on 2016-09-22T20:59:31Z. http://hdl.handle.net/2142/49727 en Copyright 2014 Xiaojia Zhang Topology Optimization of Trusses Ground Structure Method Structured Quadrilateral Element Voronoi-based Element Macro-element Approach Macro-element approach for topology optimization of trusses using a ground structure method text Civil & Environmental Eng 1251 Civil Engineering 0106 University of Illinois at Urbana-Champaign Thesis M.S. MS:Civil Engineering -UIUC 10KS0106MS