|Table of Contents|

Ductility and Moment Redistribution of Reinforced Concrete Flexural Members(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2010年02期
Page:
38-44
Research Field:
Publishing date:
2010-06-20

Info

Title:
Ductility and Moment Redistribution of Reinforced Concrete Flexural Members
Author(s):
CHANG Ying-ying;  GONG Jin-xin
Faculty of Infrastructure Engineering, Dalian University ofTechnology, Dalian 116024, Liaoning, China
Keywords:
reinforced concrete;  flexural member;  ductility;  moment redistribution;  reinforcement ratio
PACS:
TU375.1
DOI:
-
Abstract:
The method for calculating the ductility coefficient and plastic hinge rotation capacity of the reinforced concrete flexural members was investigated, and the calculation formulas for determining the depth of compression zone when tension steel yielded and concrete strain reached ultimate compressive strain or steel strain reached ultimate tensile strain were given. On the basis of these, the plastic rotation capacities of members in the range of minimum and maximum reinforcement ratios of longitudinal steel specified in Chinese, American and European codes were compared. The relations between the coefficients of plastic moment redistribution and relative depths of compression zone were studied. Research results show that the member hasn't any plastic deformation capacity in the case of maximum reinforcement ratio specified in Chinese codes, for this corresponds to the balanced failure, and the deformation capacity is less even not the case of maximum reinforcement ratio.

References:

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Last Update: 2010-06-20