The study analyzes the numerical model of a typical RC frame structure with PKPM;takes the seismic fortification intensity under the premise of unchanged keeping the basic parameter information as a variable;analyzes the variation law of the key seismic control parameters of the structure,including period ratio,axial compression ratio and interlayer displacement angle,etc.;and reveals the significant influence of seismic fortification intensity increase on structural performance and seismic capability.Then the study proposes some specific seismic reinforcement suggestions to provide theoretical support and technical reference for seismic reinforcement of existing buildings.
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