Existing Structural Evaluations
Overview
Before buying, leasing, remodeling or repairing a building, it helps to know how it is built, what condition it is in, and how it would perform in an earthquake. We review the available drawings, observe the structure on site, and report our findings, using ASCE 41 screening methods where a seismic evaluation is wanted, with recommendations in plain terms.
Please note: we do not provide bridge evaluations or bridge engineering, which is a separate specialty.
Typical Projects
- Pre-Purchase and Due-Diligence Structural Reviews
- Condition Assessments of Aging Buildings
- Seismic Screening and Evaluation of Existing Buildings
- Damage Assessments After Fire, Water or Impact
Common Structural Needs
Drawings and Records
Original plans and past alteration records, compared with what is actually built.
Visible Distress
Cracking, settlement, deflection and foundation movement that suggest overstress.
Lateral Force-Resisting System
How the building resists earthquake and wind, and any deficiencies, screened with ASCE 41 checklists where appropriate.
Deterioration
Corrosion, rot and water damage that has reduced capacity.
Past Modifications
Walls, openings or equipment added without permits.
Scope and Limits
A visual, non-destructive review of accessible areas unless testing is agreed, with what was not reviewed stated in the report.
Project Deliverables
- Structural Calculations
- Construction Drawings
- Structural Details
- Specifications and General Notes, as Applicable
- Permit Response / Plan-Check Support
- Construction-Phase Engineering Services, When Included in Scope