1913 HOYT AVE C D 2022-05-23 - Laserfiche WebLink

�" Structural Design Associates Engineering Structures to Last SDA#7976 December 4,2018 Client:Andrew Echelbarger Subject:Building Official Comments for Plan Check No. B 1711-024 Job Address: 1913 Hoyt Ave.C&D SDA Job No.7976 To whom this may concern: At the request of Andrew Echelbarger,this office reviewed the subject project to answer the building official comments issued July 13th,2018. Following is our response to the structural comments and shall be read in conjunction with the revised structural drawings and calculation package revised 12-04-18. 1) Resolved; 2) Resolved; 3) Lateral calculations and frame revised.See revised calculation package(issued 12-04-18),page M3 and M2D.Please note story drift includes the deflection amplification coefficient for shear walls. 4) Refer to revised calculation package(issued 12-04-18),page M2 for holdown load application.Please note overstrength and horizontal seismic load effect applied in frame load combinations(see M2B). 5) The following are answers to the follow-up questions regarding the proposed moment frame: a. The frame to utilize A500 Gr.B(Fy-46 ksi).See revised S1.0,S3.0 and M2A. b. The drafter/architect/designer to modify A-sheets to accommodate frame per the structural drawings. c. First design iteration per calculation sheet assumed FR per AISC 341-10 E l-6B(a).Beam chord wall plasticization failure governs resulting in a FR per AISC 341-10 E1-6B(b).Refer to revised calculation package(issued 12-04-18),page M3 and M5. 6) Refer to revised calculation package(issued 12-04-18),page M6 for foundation design loading. 7) Guardrail connection by others(i.e.guardrail manufacturer). Please contact'diis office with any questions regarding this letter. Sincerely, -4 e 41141/1110 • 34 4, Jasper Baarbe,E.I.T. 0 +1 .„+ teChris Covington,P.E. 'EC 0 5 2013 Structural Design Associates 3006 Rucker Ave, Everett, WA 98201 Ph: 425-339-0293 Fax: 425-252-0916 www.sdaeverett.com