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<br /> <br />';t <br /> <br />Flood waters <br /> <br />~~.~ <br /> <br />'"'_,..,_.-''1 <br />~ ~";.if' <br />-,...... <br />_~, Yo <br /> <br />;.',"" ," <br />~-,,~-.,..-: <br />- ~..;.~ '!'- <br /> <br />" <br /> <br />, . <br />'-'( <br /> <br />-f <br /> <br />-4\, <br />j;-..,: <br /> <br />~- c..: :.+{J:\ ":... <br /> <br />~ -..-. ~ <br /> <br />Ground level <br />II }. <br />.,.:1.' <br /> <br />. ~~- j;;~ <br /> <br />'J-"-I7/~ <br />~ <br /> <br />Resultant of flood <br />loading - reduced due <br />to effective subdrain- <br />age <br /> <br />III <br /> <br />~ -- To,"mp <br /> <br />Subdrain connected I'> Upl ift reduced <br />to effective U due to effective <br />drainage system such subsurface <br />as sump pump, well- drainage <br />point system, etc. <br /> <br />,-- <br />L_...., <br /> <br /> <br />Resul tant of <br />non-flood laoding <br />Shown for comparison <br /> <br />~ <br />'" <br /> <br /> <br />Loading from <br />structure and <br />contents <br /> <br />Restraint from <br />floor system <br />where appl icabl e <br /> <br /> <br /> <br />Foundation-basement <br />wall <br /> <br />~ <br />,. <br />,,, <br /> <br />Floor loading from <br />~tructure and <br />contents <br /> <br />-0- <br /> <br />~\\\O <br />~ <br /> <br />/ <br />.. <br />... <br /> <br />~/ <br /> <br />Sump & pump if <br />installed. <br />Open to soil <br />at bottom <br /> <br />Figure 19.-Typical building loads under flood conditions with subsurface drainage. <br /> <br />27 <br />