NEHRP Clearinghouse

Title
IDARC2D Version 4.0: A Computer Program for the Inelastic Damage Analysis of Buildings.
File
PB97100234.pdf
Author(s)
Valles, R. E.; Reinhorn, A. M.; Kunnath, S. K.; Li, C.; Madan, A.
Source
National Science Foundation, Arlington, VA., June 3, 1996, 351 p.
Identifying Number(s)
NCEER-96-0010
Abstract
This report summarizes the modeling of inelastic structures and enhancements to the program series IDARC developed for analysis, design and support of experimental studies. This report presents also new developments regarding modeling of inelastic elements and structures with supplemental damping devices, infill panels, etc. The analytical models described include, frame structures with rigid or semi-rigid connections made of beams, columns, shear walls, connecting beams, edge elements, infill masonary panels, inelastic discrete springs (connectors), and damping braces (viscoelastic, fluid viscous, friction, hysteretic). The formulations are based on macromodels in which most structural members are represented by a single-comprehensive element with nonlinear characteristics.
Keywords
IDARC2D computer program; Framed structures; Columns (Supports); Deformation; Flexibility; Bending; Connectors; Hysteresis; Damage assessment; Computerized simulation; Panels; Vibration damping; Vibration isolators; Nonlinear systems; Structural vibration; Beams (Structural); Earthquake damage; Buildings; Seismic effects; Inelastic stress; Walls; Rigidity; Computer programs; Dynamic structural analysis