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原文传递 Experimental Investigation of Friction-Damped Self-Centering Prestressed Concrete Beam-Column Connections with Hidden Corbels

题名：	Experimental Investigation of Friction-Damped Self-Centering Prestressed Concrete Beam-Column Connections with Hidden Corbels
正文语种：	英文
作者：	Linjie Huang; Zhen Zhou; Patricia M. Clayton, M.ASCE;Bin Zeng; Jian Qiu
作者单位：	Southeast Univ;Univ, of Texas at Austin
关键词：	Self-centering; Prestressed concrete beam-eolumn connection; Unbonded posttensioning; Friction dampers; Hidden corbel; Energy dissipation
摘要：	This paper presents the experimental investigation of the hysteretic behavior of a self-centering prestressed concrete (SCPC) beam-to-column cormection under cyclic loading. The SCPC conn ection utilizes unbonded posttensioned (PT) tendons to provide self-centering capacity. Friction dampers (FDs) are placed in the upper and lower parts of the beam-to-column connections to provide energy dissipation ability. A hidden corbel (HC) is used to provide sufficient vertical shear capacity and to facilitate construction of the beam and column assembly. A series of tests were performed on two specimens to investigate the effects of various design parameters, such as FD details (e.g., type of friction material, number of friction bolts, thickncss of external friction plates, friction forces, etc.), the number of and initial force of the PT tendons, and corbel dimensions, on the performance of the connection under cyclic loading. The test results indicate that the friction damped self-cc ntering prestressed concrete beam-column corm ections with hidden corbels and properly designed FDs can achieve significant and reliable energy dissipation levels while maintaining self-centering capabilities.
出版日期：	2020
出版年：	2020
期刊名称：	Journal of Structural Engineering
卷：	Vol.146
期：	No.03
页码：	04019228