Т. 59. Бр. 2. Международна научна конференция " Съвременни тенденции и иновации в строителството ".
Рез. на англ. ез.
DOI: 10.71167/uaceg.2026.590208
Анотация
" The study presents the development of reduced-order representations for capturing inelastic cyclic behavior and local buckling effects in shear-link members of eccentrically braced steel frames. Detailed finite element (FE) models were developed in ABAQUS using shell elements with combined isotropic-kinematic hardening for steel, and validated against experimental data, showing close agreement in strength and degradation trends. A representative link specimen was analyzed under monotonic and cyclic loading, with and without geometric nonlinearity, to isolate the role of local buckling in stiffness degradation. A critical averaging region (CAR) approach was introduced to capture critical local responses in flange and web regions. Results showed that wider CARs more effectively represented the combined influence of distributed plasticity and geometric imperfections, particularly in flanges, and that geometric nonlinearity was essential to simulate buckling initiation and post-buckling softening. Uniaxial curves from the CAR study will be used to develop constitutive models capturing material and geometric nonlinearity in flange and web regions. Integrated into fiber-based frame models, these will enable efficient simulation of local buckling within global analyses, thus improving the speed and fidelity of nonlinear dynamic analyses for eccentrically braced frames. "
Guren, A., Saritas, A., Shaban, N. Modeling a reduced-order representation of local buckling in shear-link members for eccentrically braced steel frames. София: УАСГ, 2026 с. 465 - 478,.
Guren, A., Saritas, A., Shaban, N. Modeling a reduced-order representation of local buckling in shear-link members for eccentrically braced steel frames. София: УАСГ, 2026 с. 465 - 478,.
Guren, A., Saritas, A., Shaban, N. (2026) Modeling a reduced-order representation of local buckling in shear-link members for eccentrically braced steel frames, София: УАСГ с. 465 - 478,.
Guren, A., Saritas, A., & Shaban, N. (2026). Modeling a reduced-order representation of local buckling in shear-link members for eccentrically braced steel frames. София: УАСГ, с. 465 - 478.
Guren A, Saritas A, Shaban N. Modeling a reduced-order representation of local buckling in shear-link members for eccentrically braced steel frames. София: УАСГ; 2026. p. с. 465 - 478.
