Calculation method of ultimate moment resistance and moment-rotation curve for steel beam to concrete-filled steel tube column connections with bidirectional bolts

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United States of America Patent

PATENT NO 11821806
APP PUB NO 20200408626A1
SERIAL NO

16969883

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Abstract

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The invention discloses a calculation method of ultimate moment resistance and moment-rotation relation for steel beam to concrete-filled steel tube column connections with bidirectional bolts, wherein the calculation method as follows: calculate ultimate moment resistance values of the connection for different failure modes, i.e. yielding of the endplate or T-stub in bending, failure of bolts in tension, failure of column in transverse compression, failure of panel zone in shear, and yielding of the steel beam in bending; the smallest one in the five ultimate moment resistance values is taken as the ultimate moment resistance of the connection; obtain the initial rotational stiffness of the connection by the test, simulation or theoretical calculation; then, the moment-rotation curve of the connection is obtained by substituting the initial rotational stiffness and the ultimate moment resistance into the proposed exponential model for the moment-rotation relation.

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Patent Owner(s)

Patent OwnerAddress
DALIAN UNIVERSITY OF TECHNOLOGYDALIAN LIAONING 116024

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
An, Yonghui Liaoning, CN 3 1
Ou, Jinping Liaoning, CN 5 1
Zhou, Guojie Liaoning, CN 1 0

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