Model of the Initial Stiffness in Extended End-Plate Connection

Jian Li Zhao

doi:10.4028/www.scientific.net/AMM.321-324.1766

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 321-324Model of the Initial Stiffness in Extended...

Model of the Initial Stiffness in Extended End-Plate Connection

Abstract:

Extend end-plat bolted connections are widely used in steel frames. The rotational stiffness has great influence on steel frame stiffness and deformation. The decrease of the frame lateral stiffness, due to connection rotational deformability, leads to the increase of the period of vibration and the frame sensitivity to second-order effects. This thesis divides the end plate into several parts equivalent to different Timoshenkos beams to determine their contribution to rotational stiffness of the connection. Then stiffness of all parts and bolts is given, and then the component method is used to calculate rotational initial stiffness of extended end-plate connections. Comparisons with results of ANSYS and related tests show that the proposed equations have excellent precision. And the calculating process is simple and easily applicable in practice.

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Periodical:

Applied Mechanics and Materials (Volumes 321-324)

Pages:

1766-1769

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.321-324.1766

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Online since:

June 2013

Authors:

Jian Li Zhao

Keywords:

End Plate Stiffener, Extended End-Plate Connections, Initial Stiffness, Moment Rotation Curve

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References

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