Abstract
Aiming at the problems of poor construction quality and low efficiency in the construction of cast-in-situ constructional columns, this paper puts forward a kind of fabricated constructional column. Through four full-scale model tests and numerical simulation, the hysteretic energy consumption, stiffness degradation and deformation capacity of infilled wall frames with fabricated constructional columns were studied. The results showed that the specimens with fabricated constructional columns have good in-plane seismic performance. The test phenomenon showed that the crack development mode of masonry infilled wall was changed by the setting of cast-in-situ constructional columns, and its failure was mainly the “X" shaped shear crack. The failure of the infilled wall without any constructional column or with the fabricated constructional column was mainly caused by the horizontal slip cracks. Compared with the cast-in-situ constructional column specimens, the fabricated constructional column specimen has low damage characteristics under the same drift. Finite element simulation can effectively fit the failure and seismic performance of the specimens. This paper can provide references for the application of the new construction technology.
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