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<br /> <br /> <br /> <br /> <br /> <br />3rd & Broadway, Santa Ana, CA <br />Volume 2 - Structural Calculations June 17, 2024 | Project # S21043.00 <br /> pg. 44 <br />Table 4.3-1: Hand Calculation of Total Building Weight – Residential <br /> <br />Note about ETABS mass: <br />Additional mass factor is applied at lower ramp levels to account for there being more parking ramp levels <br />than residential levels. <br />A typical hand calculation for load take down at Level 10 is presented as below