3D-BASIS SERIES OF COMPUTER PROGRAMS – Satish Nagarajaiah Group

3D-BASIS used for analysis and design around the world

Satish Nagarajaiah is the Original and Primary Developer of 3D-BASIS Computer Program for Nonlinear Dynamic Analysis of Three Dimensional 3D Seismic Base Isolated Structures in 1989, which he did as a part of his doctoral research from 1987 t0 1990 (working with Andrei Reinhorn). Since then Satish Nagarajaiah, Andrei Reinhorn and Michael Constantinou have collaborated in enhancing original 3D-BASIS into a series of programs.

“The most widely used computer program for analyzing base isolated structures today is the 3D-BASIS suite of programs…” quote from…

Earthquake Resistant Design with Rubber by James M. Kelly, 1997, 2nd Edition, Springer Verlag, London (Page 234)
Design of Seismic Isolated Structures: From Theory to Practice by Farzad Naeim and James M. Kelly, 1999, 1st Edition, John Wiley, New York (Page 217).

Referred to by current national building codes..

NEHRP Guidelines for the seismic rehabilitation of buildings, Federal Emergency Management Agency, FEMA 273/274, ATC 33 (Page 9-9,9-46), FEMA-356 (2000)
NIST GCR 10-917-5 (2010) NEHRP Seismic Design Technical Brief No. 4 “Nonlinear Structural Analysis For Seismic Design A Guide for Practicing Engineers,” by Gregory G. Deierlein, Andrei M. Reinhorn and Michael R. Willford.

3D-BASIS Computer Program source code available

Nagarajaiah, S., Reinhorn, A. M., and Constantinou, M. C., “Nonlinear dynamic analysis of three dimensional base isolated structures (3D-BASIS),” Report No. NCEER-89-0019, National Center for Earthquake Engineering Research, SUNY, Buffalo, New York. (1991) (3D-BASIS NCEER Report 89-0019)

Nagarajaiah, S., Reinhorn, A. M., and Constantinou, M. C., “3D-BASIS: Nonlinear dynamic analysis of three dimensional base isolated structures – Part II,” Report No. NCEER-91-0005, National Center for Earthquake Engineering Research, SUNY, Buffalo, New York. (1991) (3D-BASIS NCEER Report 91-0005)

Nagarajaiah, S., Reinhorn, A. M., and Constantinou, M. C., “Nonlinear dynamic analysis of 3D-base isolated structures,” Journal of Structural Engineering, ASCE, Vol. 117, No. 7, pp. 2035-2054 (1991). Nonlinear Dynamic Analysis of 3D-Base-Isolated Structures – 1991 ASCE JSE Paper

Nagarajaiah, S., “3D-BASIS: A computer program for nonlinear dynamic analysis of base isolated structures”, Bulletin of the National Center for Earthquake Engrg., Vol. 5, No. 4, 12-15 (1991).

Nagarajaiah, S., Tsopelas, P. S., Li, C., Reinhorn, A. M., and Constantinou, M. C., “3D-BASIS: A class of computer programs for nonlinear dynamic analysis of base isolated structures,” Proceedings ATC-17-1 Seminar on Base Isolation and Active Control, San Francisco, California, 173-184 (March 1993).

Nagarajaiah, S., “Post earthquake evaluation of base isolated structures”, Bulletin of the National Center for Earthquake Engrg., Vol. 9, No. 3, pp. 15-18, (1995).

3D-BASIS-TABS Computer Program source code available

Nagarajaiah, S., Li, C., Reinhorn, A. M., and Constantinou, M. C., “3D-BASIS-TABS: A computer program for nonlinear dynamic analysis for three dimensional base isolated structures,” Report No. NCEER-93-0011, National Center for Earthquake Engineering Research, SUNY, Buffalo, New York (1993). 3D-BASIS-TABS-93-0011

Reinhorn, A.M., Nagarajaiah, S., Constantinou, M.C., Tsopelas, P.C., and Renfen, L., “3D-BASIS-TABS Version 2.0: A computer program for nonlinear dynamic analys is for three dimensional base isolated structures,” Report No. NCEER-94-0018, Na tional Center for Earthquake Engineering Research, SUNY, Baffalo, New York (1994). 3D-BASIS-TABS-V2-94-0018

3D-BASIS-M Computer Program for Nonlinear Dynamic Analysis of Multiple Building Base Isolated Structures (Satish Nagarajaiah with Panos Tsopelas – co-developer).

Satish Nagarajaiah is the Original and Primary Developer of 3D-BASIS Computer Program for Nonlinear Dynamic Analysis of Three Dimensional 3D Seismic Base Isolated Structures in 1989, which he did as a part of his doctoral research from 1987 t0 1990 (working with Andrei Reinhorn). Since then Satish Nagarajaiah, Panos Tospelas, Andrei Reinhorn, and Michael Constantinou have collaborated in enhancing original 3D-BASIS into a series of programs.

Tsopelas, P., Nagarajaiah, S., Constantinou, M. C., and Reinhorn, A. M., “3D-BASIS-M: Nonlinear dynamic analysis of multiple building base isolated structures,” Report No. NCEER-91-0014, National Center for Earthquake Engineering Research,SUNY, Buffalo,NewYork (1991) 3D-BASIS-M-91-0014

International Distribution (Countries: USA, Turkey, Canada, China, England, Germany, Greece, Italy, Japan, New Zealand, Indonesia, India).

Partial Users List:

United States of America:

GOVERNMENT —

National Center for Earthquake Engineering Research, Buffalo, NY, and

National Information Service – Earthquake Engineering, University of Califor nia, Berkeley, CA.

National Institute of Standards and Technology, Gaithersburg, MD.

U.S. Geological Survey, VA; Lawrence Livermore Laboratory, CA; CALTRANS, Division of Structures, CA; California Strong Motion Instrumentation Program, CA; Office of State Architect, CA; Internal Services Department, City of Los Angeles; Division of Engineering Services, City of San Francisco; ……

UNIVERSITIES —

Univ. of California, Berkeley; Univ. of California, Irvine; Univ. of Southern California, Los Angeles; California State Univ.; Georgia Institute of Technology, GA; Univ. of Oklahoma, Norman, OK; Washington Univ., St. Louis, MO; Washington State Univ., Seattle, WA; Northeastern Univ., MA;

ENGINEERING FIRMS —

Dynamic Isolation Systems, Berkeley, CA; Skidmore, Owings and Merrill, CA; EQE, CA; Charles Kircher Assoc., CA; Bechtel, Inc., CA; Sargent and Lundy Engineers, IL; Over Arup & Partners, CA; Flour Daniel, CA; URS Consultants; Forell Elsesser Assoc., CA ; Jack Benjamin Assoc., CA; Daniel Mann Johnson, CA; Skilling Ward Magnu, Barkshire, CA; Taylor & Gaines, CA; KPFF, CA; John A. Martin, CA; ……

Other Countries-–

Dept. of National Defense, Canada; AECL CANDU–Nuclear Division, Canada; Tongi Univ., China; Univ. of

Liverpool, England; Univ. of Aachen, Germany; Univ. of Athens, Greece; ISMES S.P.A., Italy; U niv. of Rome, Italy; Univ. of Napoli, Italy; TAISEI Corp., Japan; TAKENAKA Corp., Japan; SUMITOMO Corp., Japan; Holmes Consulting Group, New Zealand; Instituto De Ingenieria, Univ. of Mexico (UNAM), Mexico; Str. Bolintineanu, Romania; ……