Eventos Anais de eventos
MecSol 2017
6th International Symposium on Solid Mechanics
OPTIMAL DESIGN OF BEAM-COLUMN CONNECTIONS OF PLANE STEEL FRAMES USING THE COMPONENT METHOD
Submission Author:
Rafael da Silva Hortencio , RJ , Brazil
Co-Authors:
GINES FALCON
Presenter: Rafael da Silva Hortencio
doi://10.26678/ABCM.MecSol2017.MSL17-0048
Abstract
This paper presents a methodology for optimization of beam-column connections of plane steel frames. The objective is to obtain beam-column connections mechanically more efficient and with minimum cost by determination of the optimal dimensions the components of the connection; Satisfying mechanical constraints associated with the bending moment and the rotational stiffness of the connection, however, without compromising its safety and integrity. Minimum and maximum limits of geometric parameters are considered, according to current regulations. Computational codes were developed to calculate the bending moment and the rotational stiffness of the connection using the "Method of Components" of Eurocode 3. Initially, it was developed a digital database with structural profiles, steel plates and commercial bolts obtained from catalogs of manufacturers, with automatic access of the data by the computational modules of structural analysis and optimization. In the optimization model, is adopted the connection with extended end plate without stiffeners, the design variables are the dimensions and the thickness of the end plate, the diameter and the location of the bolts. In the optimization process, in the search for global minimum of the problem we use genetic algorithms with continuous and discrete variables, with the discrete variables being associated to the database. In this way, this paper presents a computational tool developed integrally in MATLAB® environment for analysis and optimal design of beam-column connections for plane steel frames. Are present applications that show quite satisfactory results when compared with results available in the literature.
Keywords
structural optimization, Steel beam-column connections, Bolted end-plate connections, structural optimization, Steel beam-column connections, Bolted end-plate connections
