Design and Optimization of Post Disaster Relief Structure

Abstract

This thesis covers the design and optimization of a post-disaster relief shelter as well as a custom connection design. The goal of this work is to propose new solutions for temporary shelters and to streamline the design process. In particular, the structure is designed for flooding in Pakistan and uses steel hollow structural sections (HSS). The design works to minimize the number of unique parts, requires no power tools for assembly, utilizes all prefabricated elements, and meets the region's building codes for a typical residential home. Ultimately, the structure is a shelter that can be reused year to year by being assembled and disassembled as needed. This will help to reduce material waste and the overall effect on the environment. For the design of the structure, two different methods were employed, one focusing on parametric modeling and one focusing on repetitive elements. Designs from each method were optimized and then compared to determine the best solution. Once the top design was selected, the members in the design were grouped and then replaced based on the groups to reduce the number of unique elements. Finally, the last part of the thesis works on the design and prototyping of a custom steel node. The node is designed to connect eight HSS sections together with each element held using a single pin. Preliminary prototyping for the connection is also done using polymer and steel 3D printing methods. In conclusion, this thesis presents a workflow and design for a prefabricated shelter kit that can be assembled with no additional tools or materials while ensuring it resists all the appropriate loads for the area.