Study on seismic performance of cast-in-place frame infilled wall with slit plate connection
In order to study the influence of cast-in-place PVC pipe hollow infill wall connected by tensile plate on the seismic performance of the structure.Six full-scale single-story and single-span concrete frame specimens were designed,including two empty frames,two PVC tube hollow infilled wall frames without rigid connection of slit plate and two PVC tube hollow infilled wall frames with flexible connection of slit plate.Through the low cyclic loading test of each specimen,the seismic performance indexes such as failure characteristics,hysteresis curve,skeleton curve,energy dissipation ratio and stiffness degradation of cast-in-place frame infilled wall with slit plate connection were studied.At the same time,the bearing capacity test and material tensile test were carried out on the seam plate material.The results show that the addition of PVC hollow infilled wall can improve the initial stiffness and bearing capacity of the frame.The seismic performance of the specimen group with PVC structural seam plate is between that of the empty frame and the specimen group without PVC structural seam plate.Adding PVC structural seam plate can improve the energy dissipation capacity of the frame to a certain extent and slow down the stiffness degradation of the whole frame.
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