Appeal 33497

Appeal Summary

Status: Decision Rendered

Appeal ID: 33497

Submission Date: 9/26/24 8:31 AM

Hearing Date: 10/2/24

Case #: B-006

Appeal Type: Building

Project Type: commercial

Building/Business Name: Pepsi Blocks Building A

Appeal Involves: Erection of a new structure

Proposed use: Mixed Use: Residential/Retail/Parking

Project Address: 2505 NE Pacific St

Appellant Name: Franklin Callfas

LUR or Permit Application #: Permit 20-129170-CO

Stories: 8 Occupancy: A-3, B, R-2, S-1, S-2 Construction Type: IIIA, IA

Fire Sprinklers: Yes - All Levels

Plans Examiner/Inspector: Steven Mortensen

Plan Submitted Option: pdf [File 1] [File 2] [File 3]

Payment Option: electronic

Appeal Information Sheet

Appeal item 1

Code Section	2019 OSSC 703.3, Item 4
Requires	703.3 Methods for Determining Fire Resistance. The application of any of the methods listed in this section shall be based on the exposure and acceptance criteria specified in ASTM E119 or UL 263. The required resistance of a building element, component or assembly shall be permitted to be established by any of the following methods or procedures: Engineering analysis based on a comparison of building element, component or assemblies designs having resistance ratings as determined by the test procedures set forth in ASTM E119 or UL 263.
Code Modification or Alternate Requested	Allow intumescent coating as approved protection of steel brackets connected to supporting structure at pedestrian bridges for a 1-hour fire-rating based on comparison to ESR-5314.
Proposed Design	49.42 mils of Contego HS High Solids intumescent coating will be applied to ½-inch steel plate welded connection brackets. The brackets are part of support and compensate for bridge movement during wind and earthquake forces. The protection is designed for a 1-hour rating based on ESR-5314.
Reason for alternative	This appeal compliments Appeal 33415 to address additional conditions regarding the compliance of the building’s pedestrian walkways with OSSC Section 3104.3 using intumescent coating to achieve the required 1-hour fire protection. The steel beams were addressed and approved in the prior appeal (33415), and this appeal addresses the connections for the skybridge. To document the fire protection 1-hour equivalency, Franklin Callfas, Oregon registered FPE, has prepared the attached engineering judgment analysis. See 3a.EJ3 - Bridge Connections attachment.

Appeal item 2

Code Section	2019 OSSC 703.3, Item 4
Requires	703.3 Methods for Determining Fire Resistance. The application of any of the methods listed in this section shall be based on the exposure and acceptance criteria specified in ASTM E119 or UL 263. The required resistance of a building element, component or assembly shall be permitted to be established by any of the following methods or procedures: Engineering analysis based on a comparison of building element, component or assemblies designs having resistance ratings as determined by the test procedures set forth in ASTM E119 or UL 263.
Code Modification or Alternate Requested	Allow intumescent coating in combination with gypsum wallboard as approved protection of steel plates at the exterior walls for a 3-hour fire-rating based on comparison to ESR-5314 and OSSC 722.
Proposed Design	Fire protection for the 3-hour rated steel plates will be provided by additive fire protection methods. A layer of gypsum wallboard (1-hour equivalency) will be provided atop a 2-hour equivalent thickness of Contego HS High Solids intumescent coating applied per the attached engineering judgment analysis.
Reason for alternative	This appeal compliments Appeal 33415 to address additional conditions regarding the compliance of the building’s pedestrian walkways with OSSC Section 3104.3 using intumescent coating plus gypsum wallboard to achieve the required 3-hour fire protection for the primary frame. To document the fire protection 3-hour equivalency, Franklin Callfas, Oregon registered FPE, has prepared the attached engineering judgment analysis. See 4a-EJ4 - Column protection attachment.

Appeal Decision

Item 1: Alternate 1-hour fire protection of steel members with intumescent coating per engineered analysis: Hold for more information.
Item 2: Alternate 3-hour fire protection of steel members with combined intumescent paint and gyp bd system per engineered analysis: Hold for more information.

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