2018-0034 Westgate Village Shoring - Beck.pdfBeck & Associates, PLLC
Structural Engineering & Code Consulting
January 16, 2018
Leif Bjorback
Building Official
City of Edmonds
121 5t' Avenue North
Edmonds, WA 98020-3145
Subject: Westgate Village (Shoring)
Permit: BLD18-0034
Per your request, Beck & Associates has completed a structural review of the drawings and
calculations for conformance with the 2015 International Building Code (IBC), as adopted and
amended by the State of Washington and the City of Edmonds.
Our review of the plans and calculations indicates that corrections are necessary prior to permit
issuance. The applicant should address the following comments in itemized letter format in addition
to making corrections & revisions to the drawings. Corrections and revisions to the drawing should
be clouded so that they are clearly identifiable.
General
General
1) The Shoring Plans need to clearly distinguish between those elements that are considered
temporary and those that are considered permanent. Our understanding is that the new shoring
system will be permanent while the existing, modified shoring system will be temporary.
2) Reference Piles N1 through N3. PanGEO needs to provide recommendations for the design of
these elements. No recommendations were provided in the written documentation provided.
Drawing Sheets
SH2.0
3) Reference Piles P17 & P18. PanGEO recommends that piles P17 & P18 be designed for 38 pcf
(600 pcf passive over 2 pile diameters, below El. 306). However, the shoring designer, Ground
Support, has provided design considering active pressures of 30 pcf + 7H (seismic). Either the
design needs to be updated by Ground Support per PanGEO recommendations, or PanGeo is
required to revise their recommendations, consistent with Ground Support's design. Provide
coordination.
4) Reference Piles P4 through P16. It is unclear if the PanGEO's recommendations were based on
these shoring elements being permanent or temporary. We understand that these shoring
elements are intended to be permanent. PanGEO needs to confirm the adequacy of the
provided recommendations for permanent conditions or provide updated recommendations.
Ground Support will need to update their design should geotechnical recommendations be
revised.
16425 SE 66 t h Street, Bellevue, WA 98006 * beckpllc@msn.com * PH: 206-313-3739
BLD18-0034 (Structural)
January 16, 2018
Page 2 of 2
5) PanGeo needs to provide recommendations for the design of piles N1-N3. Ground Support will
need to revise the design of these elements if the geotechnical recommendations differ from the
geotechnical values utilized for design.
SH2.1
6) Reference Piles W31 through W34. PanGEO needs to provide recommendations for the design of
these elements. No recommendations were provided in the written documentation provided.
SH4.1
7) Reference 1/SH4.1. The Wall Pressure Diagram will need to be updated if PanGEO's
recommendations are revised and redesign of any of the shoring elements is required.
SH5.3
8) Reference A&B/SH5.3. "#8 Grade 75 Bar" is called out in these details. However, elevations
utilize various bar sizes and grades. Please coordinate.
SH5.4
9) Reference A&B/SH5.4. "#8 Grade 75 Bar" is called out in these details. However, elevations
utilize various bar sizes and grades. Please coordinate.
Please contact me should you have any questions.
Respectfully,
Douglas Beck, PE, SE
Beck & Associates, PLLC
16425 SF 66' Street, Bellevue, WA 98006 . beckpllc@msn.com - PH: 206-313-3739