2701 12TH ST 2020-05-06 - Laserfiche WebLink

r . 18249.10 Everett Housing RHittbrity October 29, 2018 *• Comment Response#2 Page 4 of 8) 14. This comment has not been completely addressed. See IBC Sections 107.2.1, 1603.1, 1604.1, 1613.1,and 2306.1,ASCE 7-10 Chapter 30,and AWC SDPWS-15 Section 3.4.1. The following comments shall be addressed: a. The over framing design on Sheet A-7 is incomplete. The required construction of the over framing is unclear;see Comment 13 for additional information. The west end of the west-most ridge member may bear directly on the sheathing; blocking shall be provided at the load points as needed. The structural design shall be reviewed and revised as needed. A typical detail on sheet 55.1 shows the construction of the over framing.The truss over framing will be supported by 2x sleepers nailed through the existing sheathing to the framing below. b. Calculation page 6 appears to indicate that the existing single 2x8 joists are overstressed and shall be doubled. The framing plans do not indicate double framing at the roof joists. The framing plans have been updated to match the structural calculations.Sistered joists are now called out on sheet A-7. 18. This comment has not been completely addressed. The floor framing plan on Sheet A-4 specifies a new steel beam at the existing exterior east wall. See IBC Sections 107.2.1, 1603.1, 1604.1 The following comments shall be addressed: a. This comment has not been addressed. The calculations do not include an additional 15 psf partition load per IBC Section 1607.5. The beam design should be revised. The beam has been updated to be designed with a 15 psf partition load. b. No additional comment. c. The plan appears to specify the south post as a 5 1/8x5 1/4 while the north post is a 5 1/4— square. Verify the required post size. The plans have been updated to show a 5-1/4x5-1/4 PSL,which is the typical PSL size. d. Verify that Detail 5/54.2 provides the end support condition for the W12 beam. The detail shall be referenced in the framing plans. Detail 5/S4.2 is the end condition of the W12 Beam.The call outs on A-2 have been updated for clarity. e. Continuing with Comment 18d,the following should be addressed for Detail 5/S4.2: I. Verify if stiffener plates should be provided for the W12 bottom flange. These may be required if the beam does not directly bear on the post. Note that stiffeners may still be required if the beam bears directly on the post. The beam bears directly on the post per detail 5/54.2 II. Verify the connection capacity, including bolt bearing,if the beam does not directly bear on the post. Calculations substantiating the capacity shall be submitted for review. O 250 4th Avenue South,Suite 200 Edmonds,WA 98020 ENGINEERING ph.425.778.8500 I f.425.778.5536 www.cgengineering.com