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Building Importance factor is selected on analysis settings by the user according to Codes. |
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International Design Codes
ASCE 7-16 : Building Importance Factor Selection According to 1.5.1
TSC 2018 : Building Importance Category Selection (3.1.2)
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Notation in ASCE
Ie =Building Importance Factor
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Risk Categorization
Buildings and other structures shall be classified based on is classified according to the risk to human life associated with their damage or failure by nature of their occupancy according to Table 1.5-1. It shold be purposed of applying flood, wind, snow, earthquake, and ice provisions. Each building or other structure shall Codes. According to seismic design codes, each structure should be assigned to the highest applicable Risk Category or Categories. The minimum design loads for structures should include the valid significance factors given in Table 1.5-2. Assignment of a building or other structure to multiple Risk Categories based on the type of load condition being evaluated (e.g., snow or seismic) shall be permitted.
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11.5 IMPORTANCE FACTOR AND RISK CATEGORY
11.5.1 - Importance Factor
A factor that accounts for the degree of risk to human life, and health associated with damage to property or loss of use or functionality. An Seismic Importance Factor, Ie, should be assigned to each structure in accordance with Table 1.5-2.
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