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原文传递 Seismic Capacity Quantification of Gusset-Plate Connections to Fracture for Ductility-Based Design

题名：	Seismic Capacity Quantification of Gusset-Plate Connections to Fracture for Ductility-Based Design
其他题名：	Tremblay,R.2002."Inelastic seismic response of steel bracing members."J.Constr.Steel Res.58(5-8):665-701.https://doi.org/10.1016/S0143-974X(01)00104-3.
正文语种：	英文
作者：	Konstantinos A. Skalomenos
关键词：	Gusset plates;Steel braces;Online hybrid tests;Fracture capacity;Ductility-based design
摘要：	This paper presents an experimental study on the seismic performance up to fracture of gusset-plate brace connections. During the inelastic behavior of a bracing member (e.g., buckling), weak-axis bending in the gusset is induced by brace-end rotation and a plastic hinge is formed in a predefined inelastic zone (clearance distance) of the gusset. Five gusset-plate connections that can develop restraint-free plastic rotations to accommodate the brace-end rotation demands are tested. The test parameters include the plate thickness, length of clearance distance, and several inelastic rotation demands. The connections are tested using an innovative substructure-based hybrid test method that simulates the complex boundary and load conditions that exist between the gusset-plate connections and brace member. The tests quantify the maximum rotation ductility and strength capacity of the gusset-plate connections under actual cyclic inelastic rotations and varying axial loading. The test results also provide a basis for developing a ductility-based design methodology that determines the rotation ductility of gusset-plate connections using the brace-end rotation demand at a given axial deformation capacity of the brace. A design application example demonstrates the necessity of considering explicitly in the seismic design of steel braced frames the gusset-plate fracture capacity.
出版年：	2018
论文唯一标识：	P-26Y2018V144N10034
英文栏目名称：	ANNIVERSARY PAPERS
doi：	10.1061/(ASCE)ST.1943-541X.0002193
期刊名称：	Journal of Structural Engineering
拼音刊名(出版物代码)：	P-26
卷：	144
期：	10
页码：	441-453