| Title |
Finite Element Analysis of Solid Precast Concrete Slab Connector Considering Plastic Deformation and Ductile Damage |
| Authors |
이상섭(Lee, Sang-Sup) ; 오근영(Oh, Keun-Young) |
| DOI |
https://doi.org/10.5659/JAIK.2024.40.8.201 |
| Keywords |
Omega-type connector; Solid precast concrete slab; Plastic deformation; Ductile damage model; Finite element analysis |
| Abstract |
This study develops a finite element model to analyze the load-bearing capacity of connectors between solid precast concrete slabs for use in 3-story buildings with dry connections. Omega-shaped connectors are evaluated for strength to ensure the structural integrity of the floor system with strong diaphragm action, consistent with design criteria. Their horizontal shear and tensile strengths are tested through monotonic and cyclic loading. This study uses finite element analysis to evaluate the strengths of omega-type connectors. Because these connectors are press-formed, the steel's material properties can vary across different parts. Stress reaching tensile strength during this process may cause failure due to ductile damage, reducing strength and stiffness. The study compares finite element analysis results of both monotonic and cyclic behaviors of horizontal shear and tension to experimental data, using a model that reflects changes in yield strength and ductile damage from plastic working. |