Shaking table tests for frame-masonry horizontal mixed structures in rural areas of Fujian province

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (2) : 66-71.

ZHENG Guochen1, QI Ai2 , YAN Xueyuan2

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Abstract

To study frame-masonry horizontal mixed structures appearing in rural areas of Fujian province in recent years, taking a real folk house as the prototype, shaking table tests for its 1/2 scale model were conducted, its dynamic characteristics, test phenomena and dynamic responses under different earthquakes were measured. Meanwhile, the structure’s finite element (FE) model was established with the software ANSYS. Then the elastoplastic response time-history analysis for the FE model under earthquakes was performed. The FE analysis results were compared with the shaking table test results. It was shown that the FE computing results agree well with the test ones, the effectiveness of the FE model was verified; destruction patterns of masonry part of this type structure are similar to those of brick-concrete structures; stress concentration occurs at the top node of frame part’s RC columns; the structure’s rigidity center and mass center do not coincide, the lateral stiffness of the second floor is obviously larger than that of the first one; under the action of earthquakes, the first floor has bigger displacements and torsion effects; due to poorer construction quality, there is a larger hidden danger in this type structures under earthquakes.

Key words

horizontal mixed structure / shaking table test / brick-concrete structure / finite element (FE) analysis；anti-earthquake performance

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ZHENG Guochen1, QI Ai2,YAN Xueyuan2. Shaking table tests for frame-masonry horizontal mixed structures in rural areas of Fujian province[J]. Journal of Vibration and Shock, 2018, 37(2): 66-71

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