TL;DR (generated, confidence: high)

BCG 03-10 outlines two acceptable methods for using adhesive anchors in unreinforced masonry buildings for seismic strengthening. Portland Permitting & Development accepts either ICC-ES approved systems or pre-construction tested systems.

Key points:

BCG 03-10 addresses adhesive anchor design methods and testing requirements for seismic strengthening of existing unreinforced masonry buildings (Building Code Guide 03-10: Adhesive Anchors ↗)
Method A: System approved by ICC-ES or an equivalent nationally recognized evaluation service (Building Code Guide 03-10: Adhesive Anchors ↗)
Method B: System relying on pre-construction testing of specific anchors in a specific building (Building Code Guide 03-10: Adhesive Anchors ↗)
Portland Permitting & Development (PP&D) accepts adhesive anchor installations following either Method A or Method B (Building Code Guide 03-10: Adhesive Anchors ↗)

Entities: guide: BCG 03-10 | organization: ICC-ES · Portland Permitting & Development | technique: Adhesive Anchors | building_type: Unreinforced Masonry | method: Method A · Method B

Building Code Guide 03-10: Adhesive Anchors

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Source: Building Code Guide 03-10: Adhesive Anchors ↗ Last modified: Sun, 19 Apr 2026 20:06:23 GMT

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Building Code Guides (BCGs) provide a comprehensive alternative to a complicated set of code requirements.

BCG 03-10: Adhesive Anchors in URM Buildings

QUESTION: What are the acceptable design methods and testing requirements when using adhesive anchors for seismic strengthening of existing unreinforced masonry buildings?

RESPONSE: Portland Permitting & Development (PP&D) will accept adhesive anchor installations that follow either a system approved by ICC- ES or an equivalent nationally recognized evaluation service (Method A) or a system which relies on pre-construction testing of specific anchors in a specific building (Method B), as outlined below.