Numerical Analysis of Seismic Performances of Post-Fire Scoria Aggregate Concrete Beam-Column Joints
نویسندگان
چکیده
In order to analyze the post-fire seismic performances of scoria aggregate concrete (SAC) beam-column joints precisely and effectively, one finite element model (FEM) was developed simulate behavior SAC joints. The FEM consists two sequential parts: firstly, heat transfer analysis joints, then by combining temperature field distribution obtained from with mechanical properties after fire, both which were implemented in ABAQUS. make simulation results more accurate, spring elements applied bond–slip material degradation due fire damage analysis. Moreover, validate FEM, natural (NAC) simulated established compared available test data. It is proved that we built accurate effective provided efficient solutions for evaluating performance so effects various parameters, namely, time, longitudinal reinforcement ratio, axial compression ratio on investigated depth, indicated increase can improve strength, initial stiffness, energy dissipation capacity while strength stiffness a small extent, but too high will significantly weaken
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ژورنال
عنوان ژورنال: Fire
سال: 2021
ISSN: ['2571-6255']
DOI: https://doi.org/10.3390/fire4040070