319 PARK PL 2019-09-24 - Laserfiche WebLink

Structural Calculations - Residence UnderpinningA., C Project Name : May Residence Project No. : 19001.18 NIMMIAlti Designed By : DET Date : 10-Jun-19 EN K;.7MIANY Check Foundation Supportworks Push Pier System Design Inputs Pier System Designation = 2.875 in ct PIER/ REACTION Load Vertical to Pier, P REn = 7.07 kips PIER CAP WITH I Min Installation Depth = 10 ft THREADED RODS 1 ;,,._.7--(E) STEMWALL 1111 AND FOOTING Unbraced Length, L = 0.5 ft PIER I I -,., Eccentricity, e = 4.25 in CD EXTERNAL SLEEVE (E ) GRADE I ., Friction Factor of Safety, FS = 2 Normal Surface Force, Fn = 3.54 kips BRACKET p EXCAVATION I I . t^�► _" ; +MOmentEccentricity = 30.06 kip-in Moment - iriction - 0.00 kip-in Design Moment, MPierDL = 30.06 kip-in Sleeve Properties w. Sleeve Length = 30 in Design Sleeve OD = 3.434 in o E•XTERNAL Design Wall Thickness = 0.183 in NOTE:The design wall + SLEEVE thickness of the pier and the Radis of Gyration, r = 1.151 in - _ 2 sleeve are based on 93%of Area,A = 1.871 in the nominal thickness per -'- Ltir � Elastic Section Modulus,S = 1.444 in3 AISC and the ICC-ES AC358 4 Plastic Section Modulus Z = 1.938 in3 based on a corrosion loss rate of 50 years for zinc- PIER Moment of Inertia, I = 2.48 in4 coated steel tR ElasticYield ModulusStress, E = 2900050 ksi ksi EACTION AT LOAD , Fy = BEARING STRATUM I Pier Properties NOTE:The seciton above is a general representation of the piering Design Tube OD = 2.823 in system,refer to the pier layout plan for project specific details. Design Wall Thickness = 0.136 in Effective Length Factor, k = 2.1 Radis of Gyration, r = 0.951 in Area,A = 1.146 in2 Nuetral Axis Depth,c = 1.411 in Elastic Section Modulus,S = 0.734 in3 Plastic Section Modulus,Z = 0.981 in3 Moment of Inertia, I = 1.037 in4 Elastic Modulus, E = 29000 ksi Yield Stress, Fy = 50 ksi Tower Engineering Company 21907 64th Ave.W,Suite 140, Mountlake Terrace,WA 98043-2298 Sheet 3 of 7