Performance of Steel-Reinforced Concrete Beam-to-Column Joints after Exposure to Fire
作者： Tian-Yi Song , Lin-Hai Han , Zhong Tao
DOI: 10.1061/(ASCE)ST.1943-541X.0001531
关键词: Residual 、 Joint (geology) 、 Structural engineering 、 Beam (structure) 、 Stiffness 、 Deformation (meteorology) 、 Numerical analysis 、 Finite element method 、 Materials science 、 Axial symmetry
摘要: AbstractThis paper presents a numerical analysis on the postfire behavior of steel-reinforced concrete (SRC) column to axially and rotationally restrained SRC beam joints. A finite-element (FEA) model was developed simulate reaction composite joints under an entire loading fire phase, including ambient temperature loading, heating, cooling with constant loads loading. For validation, proposed modeling method used results joint tests fire-resistance tests. The comparison demonstrates accuracy FEA model. Based validated model, failure modes beams were investigated, deformation internal force development during phase analyzed. Afterward, two important parameters, namely, residual strength index stiffness index, defined based moment versus relative rot...
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