Research on Mechanical Behavior and Design Method of Box Shaped Reinforced I-Beam with Weak Shaft Connection in Node Domain View Homepage


Ontology type: schema:MonetaryGrant     


Grant Info

YEARS

2013-2016

FUNDING AMOUNT

800000 CNY

ABSTRACT

In order to explore I-section column weak axis connections of high ductility, joint region can strengthen, this project proposed a box strengthen-joint region connection of I-section column for weak axis, and carried out systematic experimental study and theoretical analysis. Through the full scale monotonic loading test and numerical analysis, clear comprehensive classification of the new connection, joint region strengthening effect and floor combination effect on the influence of the connection classification; through full scale cyclic load test and systematic numerical simulation analysis, comprehensive consideration of joint region volume, column axial compression ratio, strong-axis beam bending moment, floor combined effects, steel models and so on more than ten kinds of parameters, studied hysteretic performance of the connections when various parameters change, reveal the failure mechanism of the connection and the effect of various design parameters on the connection strength, stiffness, ductility, hysteretic performance degradation, then proposed seismic design method. Explore by adjusting the thickness and height of stiffening plate, skin plate and other structural measures, adjust the mechanical properties of the node domain and beam butt weld stress distribution along the beam width direction, propo More... »

URL

http://npd.nsfc.gov.cn/projectDetail.action?pid=51278061

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