ABSTRACT
As mentioned in the preface of this book, INSTRUCT is capable of analyzing 3D structures. It was developed based on a microcomputer program INRESB-3DSUPII (Cheng et al., 1996a,b) and mainframe program INRESB-3D-SUP (Cheng and Mertz, 1989a). INRESB-3D-SUPII was a modular computer program consisting of six primary blocks. The •rst block (STRUCT) de•nes the structural model. The remaining •ve blocks (SOL01, SOL02, SOL03, SOL04, and SOL05) are independent solutions for static loading, seismic loading, natural frequency or buckling load, static cyclic or pushover loading, and response spectrum analysis, respectively.
