3103 TULALIP AVE 2019-04-17 - Laserfiche WebLink

Responses to Corrections for 3103 Tulalip Ave, Everett, WA 98201 Plan Check Number: CW1703-002 Consulting Structural Engineering Services,Inc. 17. Header size, species, and grade in all bearing walls in the basement are illustrated on page S100 in the Structural Plans on the updated plan set provided with this letter. 18. Footings under bearing walls in basement at new stair opening or beam size are provided on A102 in Floor Plans, in figure 1 on A300 in Sections, and on S100 in Structural Plans on the updated plan set provided with this letter. 19. Detail(s) for guard construction per section R312IRC including all components of guard system are provided on A102 in Floor Plans, in figure 1 on A300 in Sections, and on S100 in Structural Plans on the updated plan set provided with this letter. 20. See whole-house Ventilation System Summary on page A000 for whole-house ventilation system per Section M1507. 21. Landing at all entrance/exits including showing size and location are added to page A102 in Floor Plans on the updated plan set provided with this letter. 22. See Ventilation System Summary on page A000 for source specific exhaust fan in the bathroom on the lower floor. 23. See pages R1 and R2 in the calculations package for section BB on A300, collar ties 2x8 resolving tension loads, ensuring the members and connections are sized appropriately for the tension loading provided. 24. On sheet 2/A300 and 4/S200, it appears that CMU walls are present from site photos along the west elevation. However, existing 2x4 exterior studs are being called out. Please Clarify. Also, CMU wall construction appears to be new, please provide calculations addressing the design for the wall for gravity and out-of-plane lateral forces. The existing west wall is concrete on the bottom and a CMU on top. A new 2x6 wood framed pony wall is to be added on top of the existing CMU wall, to raise the floor level. In order to accommodate the additional out-of-plane loads from new pony wall, the new 2x6 furring wall is detailed with a brace connecting to the bottom of the new pony wall, such that any new forces from the new wood pony wall are resisted by the wood furring wall, instead of the existing CMU wall. See detail 2/S101 and calculation pages L4-L5. The CMU walls are entirely existing. 25. On 4/S200, CMU walls appear to be new and installed as part of the bearing wall system of the structure. Please provide details and calculations addressing out-of-plane wall anchorage connection to brace the wall per ASCE 7-10 Sec 12.11.2.1. As already shown on the plans, no new CMU walls are included in this project. 26. The LVL ridge beam size shown on 2/S100 does not match the size shown on the permit calculations (R1 beam). Please revise and clarify on drawings on the proposed size shown on permit calculations are actually beams "sistered" together.