TEL: (508) 875-1360

FAX: (508) 875-1369

Email: rmzallen@zallenengineering.com

Expertise: STRUCTURAL FAILURES, PROBLEM STRUCTURES and CONSTRUCTION: Structural engineering, forensic engineering, earthquake engineering, and construction engineering for buildings, bridges, and special structures. Investigation of structural failures and problem structures; recommendations and design for reconstruction and repair; investigation and consulting on construction problems, claims, and procedures; consulting on earthquake analysis and design; structural design review; consulting in structural engineering; technical assistance to attorneys; expert testimony. Keywords: seismic; wind; civil; analysis; test; failure; foundation; settlement; pile; caisson; underpinning; shoring; steel; metal; welding; concrete; prestressing; post-tensioning; masonry; wood; timber; plastic; code; inspection; defects; dynamic.