Flexural Capacity Calculation Approach for Precast Grouted Shear Wall Influenced by Joint Interface Displacements

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The grouted precast buildings have great economic superiorities and application potentials. With excessively utilized confinement steels, connecting steels, and steel sleeves, their mechanical properties satisfied the strength requirements. But the capacity calculation approach still remains uncertain due to the complexity caused by the joint interface slip and joint gap opening displacement, which can hardly be avoided and lead to an excessive steel configuration. In order to make the design approach of precast grouted shear wall convenient and to achieve economic superiorities and properties advances, this paper proposed a new flexural capacity calculation approach considering joint interface displacements influences and properties improvement by confinement steels. The calculated capacities of example precast shear wall are 553.8 kN, 501.0 kN, and 536.4 kN when only considering confinement improvement, interface slip reduction, and both the improvement and reduction, respectively. By comparing the calculated results with the experimental tested results of 589.4 kN, the accuracy and reasonability of this new calculation approach were verified. Afterward, some requirements on application conditions of this new calculation approach were suggested depending on different precast structure type and seismic area.




Wu, D. Y., Liang, S. T., Guo, Z. X., & Zhu, X. J. (2015). Flexural Capacity Calculation Approach for Precast Grouted Shear Wall Influenced by Joint Interface Displacements. Advances in Materials Science and Engineering, 2015. https://doi.org/10.1155/2015/120759

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