Edward K. Takahashi, FAIA, FACIA, CCS
Edward K. Takahashi Architectural Corporation
Monterey Park, California
Architecture Expert Witness, Construction Defects Expert Witness
Design Defects, Construction Technology, Construction Industry Inter-Relationship, Preparation for Arbitration and Litigation, Peer Reviews, Building Envelope Consultant, AIA Code of Ethics and Professional Conduct.
1992, authored "What My Mother Didn't Tell Me About.....Nails" after voluminous nailing deficiencies in shear panels, floor and roof diaphragms of wood-frame construction; which was submitted to Los Angeles Building Department. Within 60 days, Building Officials required use of box nails or 20% common nail values, or use of common nails with certified by the engineer of record or an approved inspection firm for shear panels, floor and roof diaphragms.
Developed and had a stainless steel nail gauge manufactured for City of Los Angeles Building Department, after investigation of the 1994 3-story Northridge Meadows Apartment collapse.
As Advisory Group member for Consortium of Universities for Research in Earthquake Engineering (CUREE) for repairs of wood frame buildings, funded by FEMA and administered by Cal Tech, recommmemded separate testing of wood frame component tests with common and box nails. CUREE determined "...gun-driven box nails may be on the order of 20% lower than c...
Click for Full Listing and Contact Info