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CALCULATIONS FOR RIGID ATTACHMENT TO STEEL W/ BOLTS; 2021 IBC/2022 CBC & ASCE 7-16, LRFD <br />CALCULATES WORST CASE LOADING FOR (4) TO (14) ATTACHMENT POINTS. (UNITS: LBS & INCHES) <br />USING COMBINED LOAD EQUATIONS 16-4, 16-5, 16-6, & 16-7 <br />SEISMIC/WIND FORCES - CH. 13, 26, & 29 OF ASCE 7 <br />13.3-1: Fp=(0.4*ap*Sds/(Rp/Ip))(1+2z/hr)Wp = 257.10 lbs <br />13.3-2: Fp=1.6*Sds*Ip*Wp (MAX)= 274.24 lbs <br />13.3-3: Fp=0.3*Sds*Ip*Wp (MIN)= 51.42 lbs <br />CONTROLLING HOR. SEISMIC FORCE: F p = 257.10 lbs <br />SEISMIC OVERTURNING MOMENT: M=F ph*HC.G.= 5167.07 lb-in <br />VERTICAL SEISMIC FORCE: F pv = 0.2SdsWp = 34.28 lbs <br />SPECTRAL RESP. ACCEL'N: S ds = 0.857 <br />IMPORTANCE FACTOR: I p = 1.00 <br />COMPONENT AMPLIFICATION FACTOR: a p = 2.50 <br />COMP. RESPONSE MODIFICATION FACTOR: R p = 2.00 <br />EQUIPMENT ELEVATION / ROOF ELEVATION: z/h r = 1.00 <br /> (WITH RESPECT TO GRADE) <br />UNIT LOCATED INDOORS OR OUTDOORS = OUTDOORS <br />Fh FROM PREVOUS CALCULATION (IF APPLICABLE)= 387.98 lbs <br />Fv FROM PREVOUS CALCULATION (IF APPLICABLE)= 99.16 lbs <br />WIND OVERTURNING MOMENT: M w = FpHw = 8171.90 lb-in <br />EQUIPMENT WEIGHT & GEOMETRY <br />EQUIPMENT WEIGHT: Wp (UNIT + RMU) = 200.00 lbs <br />L:= 12.22 in <br />B: = 6.88 in <br />EX:= 1.22 in <br />EZ:= 0.69 in <br />HEIGHT TO CG.: HC.G.= 20.10 in <br />CNTR OF AREA OF WINDWARD FACE: H W = 21.06 in <br />NO. OF FASTENER GROUPS (Ng) = 4.00 <br />NO. OF FASTENERS PER GROUP (N) = 1.00 <br />MOMENT OF INERTIA ABOUT X AXIS: I X = 189.06 in4 α (DIR. OF Vdir-CRIT. ANGLE): tan-1(EZ/EX)= 29.36 <br />MOMENT OF INERTIA ABOUT Z AXIS: I Z = 597.19 in4 β: γ - α == 180.00 <br />γ (DIR. OF Vrot-CRIT. ANGLE): tan-1(B/L)= 29.36 θ (DIR. OF Fph FOR MAX UPLIFT): tan-1((L*IX)/(B*IZ))= 29.36 <br />BOLT GROUP FORCES <br />FROM SEISMIC LOADS (LOAD APPLIED TO CRITICAL ANGLE)FROM WIND LOADS (LOAD PERPENDICULAR TO UNIT LENGTH) <br />VERTICAL REACTIONS (WITH 1.2D OR 0.9D):VERTICAL REACTIONS (WITH 1.2D OR 0.9D): <br />Rm (DUE TO OVERTURNING MOMENT)= 215.59 lbs Rm (DUE TO OVERTURNING MOMENT)= 297 lbs <br />Re MAX (DUE TO ECCENTRICITY):= 13.71 lbs Re MAX (DUE TO ECCENTRICITY):= 12.00 lbs <br />Re MIN (DUE TO ECCENTRICITY): = 7.29 lbs Re MIN (DUE TO ECCENTRICITY): = 9 lbs <br />Rv MAX (DUE TO VERTICAL LOADS): = 68.57 lbs Rv MAX (DUE TO VERTICAL LOADS): = 35.21 lbs <br />Rv MIN (DUE TO VERTICAL LOADS): = 36.43 lbs Rv MIN (DUE TO VERTICAL LOADS): = 20.21 lbs <br />PMAX (MAX DOWNWARD REACTION): R m+Re MAX+Rv MAX = 297.88 lbs PMAX : Rm+Re MAX+Rv MAX = 344.4 lbs <br />PMIN (MAX UPLIFT/ANCH. POINT - IF POS.): R m+Re MIN -Rv MIN =186.45 lbs PMIN : R m+Re MIN -Rv MIN (0 IF NEGATIVE)=285.9 lbs <br />HORIZONTAL REACTIONS:HORIZONTAL REACTION: <br />Vrot (SHEAR DUE TO ECCENTRICITY):= 6.43 lbs VMAX = V dir =97.00 lbs <br />Vdir (DIRECT SHEAR): = 64.28 lbs <br />VMAX (TOTAL SHEAR/ANCH. POINT):=70.70 lbs <br />WIND LOAD(S) GOVERN(S) THE DESIGN OF THE BOLTS!! <br />BOLT TENSION: T u = P MIN/N =285.95 lbs <br />BOLT SHEAR: V u = V MAX/N =97.00 lbs <br />BOLT DIAMETER:=3/8 <br /> JOB NAME: SANTA ANA MEMORIAL PARK AQUATICS CENTER M.W. SAUSSE' & CO., INC. <br /> CUST.: WEST-TECH MECHANICAL PREPARED BY : <br />MECH. ENGR.: DATE : <br />MARK: CU- 2, 3, 4, 5, 6, 7, 8, 9 (RES) SHEET NO. : <br />TYPE OF BOLT: A307 Gr. A HEX BOLTS WITH A563 HEAVY NUTS. <br />PDG <br />10-Dec-25 <br />P26681-S8076-C10.1 <br />12/10/2025 <br />27