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Civilhard
Seismic Resilience of Modular Lattice Towers

Design a self-supporting vertical structure at least 40cm tall that utilizes a braced-frame geometry to resist lateral shear loads. Your structure must support a 500g eccentric mass at the apex while enduring a 30-second simulated harmonic oscillation test at varying base frequencies. You must prioritize material efficiency and calculate your displacement-to-height ratio before and after the vibration test.
Materials: Wooden coffee stirrers, hot glue, masking tape, fishing line, cardboard, and a smartphone with a vibration sensor app.
Deadline: September 22, 2026
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