UBC Undergraduate Research

Stadium Neighborhood Underground Parkade and Water Storage Bapla, Sunny; Chen, Yiwei; Makhov, Sergey; Merdas, Ziad; Nakawooya, Prudence; Ribas, Tabata Vieira

Abstract

The proposed design includes the construction of a stormwater detention facility under the field along with a two storey underground parkade under the stadium building. Collected stormwater is stored under the field and diverted to a water treatment system. The treated water will be distributed to the stadium and the botanical garden and reused for irrigation and flushing toilets. The stored water can also infiltrate into the native soils and act as a groundwater recharge source. In case of an extreme event corresponding to a 10-year and a 100-year return period, water can be diverted to the lower level of the parkade which serves as a secondary water tank and discharged through the UBC's current pipe network. This design is effective and efficient to properly deal with the UBC's current concern related to stormwater management and prevention of floods and potential slope stability around Point Grey. The demands and capacities of the parkade were analyzed using software such as S-Frame™, S-Steel™ and S-Concrete™. The loads on the structure are composed of the dead load, vehicles load, exit load, soil pressure and snow load. The steel sections and rebar of this structure were chosen based on the CSA S16-14 and determined to be 350W and 400W respectively. The preliminary schedule for the project indicates a start on May 1st, 2019 and completion in October 2019; a total of 6 months. Additionally, the report reviews a detailed cost estimate including first costs, annual operating cost, and maintenance costs. The total expected cost is estimated at CAD $15.7 million for the parkade, detention tank and accompanying facilities construction. The parkade and water storage facility is mindful of the local environment and stakeholder interests. 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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