Abstract: This paper presents a three-dimensional (3D) geometric modeling scheme, for reinforced concrete (RC) structures, that takes into account the reinforcement detail. The node structure of rectangle adjacency graph (RAG) has ...

Abstract: A 2-1/2–dimensional (2-1/2D) boundary representation CAD data structure called rectangle adjacency graph (RAG) is presented. A review of nondeterministic polynomial (NP) completeness and proof of NP completeness of partition ...

Abstract: This paper presents an algorithm for extracting topological relationships from a wire-frame computer-aided design (CAD) model of a given concrete floor. The algorithm consists of three stages. The first stage processes the ...