Finite Element Parametric Analysis of High-Strength Eccentrically Braced Steel Frame with Variable-Cross-Section Replaceable Link

This paper proposes a new type of variable-cross-section replaceable link that can isolate the plastic deformation. The and frame beam connect with expanding section by bolt along flange web separately. It is easy to design an elastic bolt, reduce slippage, facilitate replacement after earthquake. Considering large deformation range high-strength steel superior link, eccentrically braced variable-section raised setting in frame. Then, existing end plate connection test specimen simulated verified using ABAQUS software. finite element model established, bearing capacity, stiffness, rotation, distribution, other mechanisms structure are studied cyclic loading. length energy-consuming region (e), strength components, (e’) compared analyzed regard seismic performance structure. results great significance for understanding exploring force mechanism, energy dissipation characteristics frame, it also provides reference subsequent research.