Discussion and Consideration of Change Order #2 – Tricon Construction – Tiffin Water Treatment Facility Upgrade Project – Motion to Approve — K.4

Job Truss Truss Type Qty Ply TRICON - TIFFIN WATER TREATMENT I76896070 25157A-WTP T1 Roof Special 7 1 Job Reference (optional) Revoswel Truss & Lumber, LLC, Marion, IA - 52302, Run: 25.30 S Sep 17 2025 Print: 25.3.0 S Sep 17 2025 MiTek Industries, Inc. Tue Oct 07 14:01:57 Page: 1 ID:sYiux9n8RgtVjvZ7ywpHSlyVo7q-RfC?PsB70Hq3NSgPqnL8w3uITXbGKWrCDoi7J4zJC?f 0-1-12 52-0-0 -2-0-0 6-3-7 12-6-0 18-8-9 25-0-0 29-3-0 31-3-7 37-6-0 43-8-9 49-10-4 50-0-0 2-0-0 6-1-11 6-2-9 6-2-9 6-3-7 4-3-0 2-0-7 6-2-9 6-2-9 6-1-11 0-1-12 0-1-12 2-0-0 5x8 = 7 8x8 = 8x10 = 5x6= 29 8 30 12 6 9 4 28 31 21 4x6 = M18AHS 8x14 = 6x6= 4x6 = 5 20 10 3x6= 9-6-0 4 22 19 11 4x6 = 5x6= 4x6= 8-0-0 4x4 = 6x6= 3 23 18 12 24 4x6= 17 8x8 = 27 32 4x6= 4x4 = 4x4= 2 13 M18AHS 5x10 = 1-2-0 1 25 16 14 8x8 = 4 4x6= 12 26 15 2x4 2x4 = = 1-0-0 6-3-7 12-6-0 18-8-9 25-0-0 29-3-0 31-3-7 37-6-0 43-8-9 49-0-0 50-0-0 1-0-0 5-3-7 6-2-9 6-2-9 6-3-7 4-3-0 2-0-7 6-2-9 6-2-9 5-3-7 1-0-0 Scale = 1:87.8 Plate Offsets (X, Y): [2:0-2-8,Edge], [4:0-3-0,Edge] Loading (psf) Spacing 2-0-0 CSI DEFL in (loc) l/defl L/d PLATES GRIP TCLL (roof) 20.0 Plate Grip DOL 1.15 TC 0.77 Vert(LL) -0.75 22-24 >466 360 MT20 197/144 Snow (Pf/Pg) 19.3/25.0 Lumber DOL 1.15 BC 0.52 Vert(CT) -1.34 22-24 >261 240 M18AHS 186/179 TCDL 10.0 Rep Stress Incr YES WB 0.99 Horz(CT) 0.34 20 n/a n/a BCLL 0.0 Code IBC2015/TPI2014 Matrix-R BCDL 10.0 Weight: 254 lb FT = 20% LUMBER WEBS 7-21=-711/201, 2-26=-1027/215, LOAD CASE(S) Standard TOP CHORD 2x4 SPF 2100F 1.8E 13-15=-680/210, 6-21=-4313/363, BOT CHORD 2x6 SP 2400F 2.0E 3-25=-630/114, 2-25=-152/4049, WEBS 2x4 SPF No.2 *Except* 8-21:2x4 SPF 2100F 3-24=-19/1501, 5-24=-136/73, 1.8E 5-22=-1591/180, 6-22=0/329, 8-21=0/4881, BRACING 9-19=0/764, 10-19=-3330/176, 10-17=0/278, TOP CHORD Structural wood sheathing directly applied or 12-17=-1304/31, 12-16=-263/104, 2-5-12 oc purlins. 13-16=-108/2075, 8-20=-1274/25, BOT CHORD Rigid ceiling directly applied or 4-2-7 oc 9-20=-2062/144 bracing. NOTES WEBS 1 Row at midpt 6-21, 5-22, 10-19 1) Unbalanced roof live loads have been considered for REACTIONS (size) 15=1-0-0, 20=0-8-0, 26=1-0-0 this design. Max Horiz 26=19 (LC 7) 2) Wind: ASCE 7-10; Vult=120mph (3-second gust) Max Uplift 15=-182 (LC 8), 20=-47 (LC 7), Vasd=95mph; TCDL=6.0psf; BCDL=6.0psf; h=15ft; Cat. 26=-181 (LC 7) III; Exp B; Enclosed; C-C Exterior (2) -2-0-0 to 3-0-0, Max Grav 15=765 (LC 20), 20=2479 (LC 2), Interior (1) 3-0-0 to 25-0-0, Exterior (2) 25-0-0 to 30-0-0, 26=1128 (LC 12) Interior (1) 30-0-0 to 52-0-0; cantilever left and right exposed ; end vertical left and right exposed; Lumber FORCES (lb) - Maximum Compression/Maximum DOL=1.33 plate grip DOL=1.33 Tension 3) TCLL: ASCE 7-10; Pr=20.0 psf (roof LL: Lum DOL=1.15 TOP CHORD 1-2=0/66, 2-3=-4276/212, 3-5=-5842/290, Plate DOL=1.15); Pg=25.0 psf (ground snow); Pf=19.2 5-6=-4591/197, 6-7=-155/739, 7-8=-151/750, psf (flat roof snow: Lum DOL=1.15 Plate DOL=1.15); 8-9=-79/5151, 9-10=0/3609, Category III; Exp B; Partially Exp.; Ct=1.00 10-12=-1570/942, 12-13=-2220/166, 4) Unbalanced snow loads have been considered for this 13-14=0/66 design. BOT CHORD 25-26=-37/35, 24-25=-151/4232, 5) This truss has been designed for greater of min roof live 22-24=-168/5795, 21-22=-27/4584, load of 12.0 psf or 2.00 times flat roof load of 19.2 psf on 20-21=-5201/319, 19-20=-3566/169, overhangs non-concurrent with other live loads. 17-19=-918/1559, 16-17=-124/2176, 6) All plates are MT20 plates unless otherwise indicated. 15-16=-23/16 7) Bearing at joint(s) 26, 15 considers parallel to grain value using ANSI/TPI 1 angle to grain formula. Building designer should verify capacity of bearing surface. 8) Provide mechanical connection (by others) of truss to bearing plate capable of withstanding 181 lb uplift at joint 26, 182 lb uplift at joint 15 and 47 lb uplift at joint 20. 9) Beveled plate or shim required to provide full bearing surface with truss chord at joint(s) 20. October 8,2025 WARNING - Verify design parameters and READ NOTES ON THIS AND INCLUDED MITEK REFERENCE PAGE MII-7473 rev. 1/2/2023 BEFORE USE. Design valid for use only with MiTek® connectors. This design is based only upon parameters shown, and is for an individual building component, not a truss system. Before use, the building designer must verify the applicability of design parameters and properly incorporate this design into the overall building design. Bracing indicated is to prevent buckling of individual truss web and/or chord members only. Additional temporary and permanent bracing is always required for stability and to prevent collapse with possible personal injury and property damage. For general guidance regarding the 16023 Swingley Ridge Rd. fabrication, storage, delivery, erection and bracing of trusses and truss systems, see ANSI/TPI1 Quality Criteria, and DSB-22 available from Truss Plate Institute (www.tpinst.org) Chesterfield, MO 63017 and BCSI Building Component Safety Information available from the Structural Building Component Association (www.sbcscomponents.com) 314.434.1200 / MiTek-US.com