DEVELOPMENT OF ELASTO-PLASTIC AND COLLAPSE ANALYSIS PROGRAM OF SPACE FRAMED STRUCTURE BASED ON THE HYBRID STRESS METHOD

Abstract

Program LAP3D was developed in order to predict the elasto-plastic responses and collapse behavior of space framed structures by the present authors and their colleagues, using the hybrid stress beam-column finite elements based on Timoshenko's beam-column theory, which yield no discretizing errors in their elastic and elasto-plastic responses of the element. In this paper, the concept of development and outline of LAP3D computer analysis system are described with input data menu. Also, several analytical results using LAP3D are shown and verify that LAP3D has excellent capacity to simulate simply and accurately the more complicate behavior of framed structures.