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STEEL STAIR-A <br />SITE LOCATION: <br />Longitude:33.73749 <br />Latitude:-117.8815 <br />Ss=1.293 <br />S1=0.462 <br />SDs=1.035 <br />R=1.5 <br />W=1225 lbs <br />1- Fp =1521 lbs <br />2- Fp =3043 lbs MAX. <br />3- Fp =571 lbs MIN. <br />GOVERNS:1521.5 lbs <br />VERTICAL COMPONENT: <br />Fv = 0.2*SDs*Wp (ASCE 12.4-4) <br />Fv = 254 lbs <br />THE STAIR IS SUPPORTED AT 2 POINTS (STRINGER BASE AND 1-POST) <br />VERTICAL COMPONENT FROM SEISMIC PER 2 POINT SUPPORT = 126.8 lbs <br />VERTICAL COMPONENT FROM SEISMIC PER 1 POST = 126.8 lbs <br />HORIZONTAL COMPONENT FROM SEISMIC PER 2 POINT SUPPORT = 760.7 lbs <br />HORIZONTAL COMPONENT FROM SEISMIC PER 1 POST = 760.7 lbs <br />GRAVITY LOADS:D.L=100 <br />HORIZONTAL COMPONANT D.L :1.91 10.33 <br />8.33 10.33 =708 H 708 517 <br /> HD.L=877 lbs <br />THEN HD.L=439 lbs (PER ONE POST)L.L=400 <br />HORIZONTAL COMPONANT L.L :1.91 10.33 <br />8.33 10.33 =2830 H 2830 2066 <br /> HL.L=3509 lbs <br />THEN HL.L=1755 lbs (PER ONE POST) <br />PER ONE POST (PER 1 BOLT) <br />TOTAL HORIZONTAL COMPONANT (OWN WT + SEISMIC) = 2954 lbs 739 <br />TOTAL VERTICAL COMPONANT (OWN WT + SEISMIC) = 3247 lbs 812 <br />S2 <br />1115 W Highland St <br />1/15/2025