Akademik Veri Yönetim Sistemi
4th International Civil Engineering & Architecture Conference, Trabzon, Türkiye, 17 - 19 Mayıs 2025, cilt.1, ss.2219-2230, (Tam Metin Bildiri)
Abstract. This research paper elucidates an optimization process that utilizes two metaheuristic algorithm to
achieve minimum weight by selecting beam-column connection types and structural sections as design variables.
In connection topology optimization, connection topologies are classified into two principal categories: connection
topology (1) and connection topology (2). Connection topology (1) encompasses rigid, semi-rigid (top and seat
angles), and pinned connections. Conversely, connection topology (2) consists of rigid, semi-rigid (end plate with
column stiffeners), and pinned connections. The design optimization incorporates the stress constraints established
by the AISC-LRFD (American Institute of Steel Construction - Load and Resistance Factor Design) and considers
displacement, inter-story, and geometric constraints. Initially, optimal designs for two distinct space frames drawn
from existing literature are developed without factoring in the connection topology approach. Subsequently, the
results are compared to those in the literature. Thereafter, the same optimization procedures are repeated for the
case involving space frames with connection topology approaches. All optimization methods utilize C# version
17.10.5, designed for integration with version 22 of SAP2000-OAPI (Open Application Programming Interface)
for two-way data flow. The results obtained in the study indicate that considering the arrangement of beam-column
connections leads to heavier steel weights but results in more economical designs in terms of stiffness.