NEHRP Clearinghouse

Title
INRESB-3D: A Computer Program for Inelastic Analysis of Reinforced-Concrete Steel Buildings Subjected to 3-Dimensional Ground Motions. Report No. 2.
File
PB80176944.pdf
Author(s)
Cheng, F. Y.; Kitipitayangkul, P.
Source
National Science Foundation, Washington, DC. Engineering and Applied Science., August 1979, 104 p.
Identifying Number(s)
CIVIL ENGINEERING STUDY-79-11
Abstract
This report is a user's guide for the computer program, INRESB-3D, for analyzing elastic and inelastic building systems subjected to the simultaneous input of static loads and multicomponent earthquake motions, which can be applied in any direction of the structural plane. The building systems may have elevator cores, floor diaphragms, and shear walls of reinforced concrete, as well as beams, columns, and bracings. The computer program has been developed to achieve efficiency in both computation and data preparation. The output solutions include the static results of member forces and nodal displacements, as well as the dynamic results of member forces, nodal displacements, ductility factors, excursion ratios, seismic input energies, dissipated energies, and the options of plotting some of the dynamic results. The report includes the program list, a description of the program, instructions for data preparation, and a guide to modify the program's capacity.
Keywords
Floors; INRESB-3D computer program; Earthquake resistant structures; Stiffness methods; Walls; Buildings; Earthquake engineering; Fortran 4 programming language; Elastic properties; Computer programs; Fortran; Earthquakes; Dynamic structural analysis