UBC Undergraduate Research

Multi-purpose building and overflow parking : detailed design report Chen, Fangqing; Hajen, Christian; Lee, Adrian; Miller, Jordan; Wong, Jonathan; Yau, Linus


Declining attendance revenues and general funding at the University of British Columbia Botanical Garden have severely limited the capabilities of the institution to undertake meaningful research in recent years. The collection’s lack of renown and isolated position on campus have further contributed to the garden fading into near obscurity. Despite dwindling financial resources, UBC Botanical Garden officials have explored investment in new facilities on its grounds in order to increase the venue’s visibility and attract more visitors—one such possible project is a multipurpose building providing both improved research functionality and an additional revenue stream from offering food and lounge services to patrons and UBC students. CIVL 446 Group 15 has been retained by the University of British Columbia Botanical Garden to provide a detailed design of an earth-retaining wall for a proposed multi-purpose building design concept, also provided by the same team. This report describes technical details of a recommended structural design along with relevant geotechnical analysis and construction management deliberations required to construct the wall. A brief summary of the overall conceptual building design is provided prior to the technical description and analyses, and concluding remarks and considerations are offered after the technical body. The final design consists of a 184m long cantilever wall with Z-shaped sheet piles supported by anchors spaced at equal distances as required to balance all passive and active soil forces. Geotechnical limit states analyses establish factors of safety for a variety of most-probable failure modes including rotational, translational and global instability failure. Construction of the project is estimated to cost approximately $500 000, with the whole process lasting 73 days. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”

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