18.13 - Selection of Number of Modes
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Practice Questions
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What is the typical number of modes required for low-rise structures?
💡 Hint: Think about the height and complexity of the building.
Name a type of irregularity that affects mode selection.
💡 Hint: Consider how uneven shapes and distributions can impact a structure.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the recommended number of modes for a high-rise building?
💡 Hint: Think about the height and dynamic characteristics.
True or False: Irregular structures always require fewer modes to analyze.
💡 Hint: Consider how irregular shapes affect stability.
1 more question available
Challenge Problems
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You are given a design for a mid-rise structure. Considering its asymmetrical layout, what considerations would you take into account for mode selection?
💡 Hint: Reflect on how asymmetries might influence structural behavior.
For a seismic analysis of a high-rise building, how would you justify the inclusion of 20 modes while addressing computational efficiency?
💡 Hint: Think of balancing accuracy and computational constraints.
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