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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 17
KNOWLEDGE BASED SYSTEMS FOR CIVIL & STRUCTURAL ENGINEERING Edited by: B.H.V. Topping
Paper IX.1
Conception of the Structural System of Buildings by an Expert System C.A. Syrmakezis and G.K. Mikroudis
Institute for Structural Analysis and Aseismic Research, National Technical University, Athens, Greece C.A. Syrmakezis, G.K. Mikroudis, "Conception of the Structural System of Buildings by an Expert System", in B.H.V. Topping, (Editor), "Knowledge Based Systems for Civil & Structural Engineering", Civil-Comp Press, Edinburgh, UK, pp 209-215, 1993. doi:10.4203/ccp.17.9.1
Abstract
The paper presents the development of an expert system, called ERDES whose main goal is
to assist the engineer and/or architect in the conception of the structural system of
multi-storey reinforced concrete buildings, optimizing the building's seismic behaviour
and cost. The program assists the engineer in important design decisions regarding the
configuration, the proportions, the load resisting system and the details that can affect
the seismic safety of buildings. ERDES comprises three main subsystems: the expert system,
an algorithmic programme for analysis and sizing, and an intelligent user-system CAD
interface. The expert system configures the building's structural system and makes
suggestions to the designer regarding the location and preliminary size of structural
elements. The alternative suggestions are presented through the CAD interface. Once the
user makes a selection, the analysis programme proceeds with the more detailed sizing of
elements, the calculation of stresses, displacements and overall seismic performance of
the building, and the corresponding volume of concrete, weight of reinforcement and a cost
estimate. ERDES was tested and evaluated, using real building design cases, which
concluded that the expert system offers the engineer the capability of improved
earthquake-resistant design and greater economy in the building cost.
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