A 9 m high,near full scale three-storey configurable steel frame compositefloor building incorporating frictionbased connections is to be tested using two linked bi-directional shake tables at the International joint re...A 9 m high,near full scale three-storey configurable steel frame compositefloor building incorporating frictionbased connections is to be tested using two linked bi-directional shake tables at the International joint research Laboratory of Earthquake Engineering(ILEE)facilities,Shanghai,China,as part of the RObust BUilding SysTem(ROBUST)project.A total of nine structural configurations are designed and detailed.To have a better understanding of the expected system behaviour,as well as effects of other structural and non-structural elements(NSEs)on the overall system response,experimental testing at component level has been conducted prior to the shake table testing.This paper presents an introduction to the ROBUST project,followed by a numerical study on one of the nine configurations of the structure,having Moment Resisting Steel Frame(MRSF)in the longitudinal direction and Concentrically Braced Frame(CBF)in the transverse direction.Hysteretic properties employed in the numerical models are validated against component test results.The predictions of the building’s seismic response under selected base excitations are presented indicating the likely low damage performance of the structure.展开更多
Cold-formed steel members,which experience complicated prestrain histories,are frequently applied in structural engineering.This paper aims to predict cyclic plasticity of structural steels with tensile and compressiv...Cold-formed steel members,which experience complicated prestrain histories,are frequently applied in structural engineering.This paper aims to predict cyclic plasticity of structural steels with tensile and compressive prestrain.Monotonic and cyclic tests on hourglass specimens with tensile and compressive prestrain are conducted,and compared with numerical simulations using the Chaboche model.Two approaches are taken in the simulation.The first requires only the monotonic tensile test data from the prestrained steels,and the second requires both the monotonic tensile test data from the virgin steel and the prestrain histories.The first approach slightly overestimates the compressive stress for specimens with tensile prestrain,while the second approach is able to accurately predict the cyclic plasticity in specimens with tensile and compressive prestrain.展开更多
基金support from New Zealand Ministry of Business,Innovation and Employment(MBIE)through an Endeavour Fund for the Research Programme(Sustainable Earthquake Resilient Buildings for a Better Future-PROP-83779-ENDRP-AUT)is greatly appreciated.
文摘A 9 m high,near full scale three-storey configurable steel frame compositefloor building incorporating frictionbased connections is to be tested using two linked bi-directional shake tables at the International joint research Laboratory of Earthquake Engineering(ILEE)facilities,Shanghai,China,as part of the RObust BUilding SysTem(ROBUST)project.A total of nine structural configurations are designed and detailed.To have a better understanding of the expected system behaviour,as well as effects of other structural and non-structural elements(NSEs)on the overall system response,experimental testing at component level has been conducted prior to the shake table testing.This paper presents an introduction to the ROBUST project,followed by a numerical study on one of the nine configurations of the structure,having Moment Resisting Steel Frame(MRSF)in the longitudinal direction and Concentrically Braced Frame(CBF)in the transverse direction.Hysteretic properties employed in the numerical models are validated against component test results.The predictions of the building’s seismic response under selected base excitations are presented indicating the likely low damage performance of the structure.
基金The research reported herein was sponsored by the Ministry of Education in Japan under the Grant-in-Aid for Scientific Research(A)No.23246097 with the title“Study on the coupling of buckling and fracture of steel structural members.”This financial support is sincerely acknowledged.
文摘Cold-formed steel members,which experience complicated prestrain histories,are frequently applied in structural engineering.This paper aims to predict cyclic plasticity of structural steels with tensile and compressive prestrain.Monotonic and cyclic tests on hourglass specimens with tensile and compressive prestrain are conducted,and compared with numerical simulations using the Chaboche model.Two approaches are taken in the simulation.The first requires only the monotonic tensile test data from the prestrained steels,and the second requires both the monotonic tensile test data from the virgin steel and the prestrain histories.The first approach slightly overestimates the compressive stress for specimens with tensile prestrain,while the second approach is able to accurately predict the cyclic plasticity in specimens with tensile and compressive prestrain.
