Title:
Moment-Rotation Modeling of Reinforced Concrete Beam-Column Connections
Author(s):
S. E. El-Metwally and W. F. Chen
Publication:
Structural Journal
Volume:
85
Issue:
4
Appears on pages(s):
384-394
Keywords:
beam-column frame; beams (supports); columns (supports); connections; bonding; cracking (fracturing); energy; joints (junctions); models; moments; reinforced concrete; stiffness; thermodynamics; Structural Research
DOI:
10.14359/2656
Date:
7/1/1988
Abstract:
The thermodynamics of irreversible processes is used to develop the moment-rotation relationship of a R/C beam-column connection idealized as a concentrated rotational spring. This spring is defined by the following three parameters: The initial rotational stiffness of the connection Ko computed from the linear behavior of the materials: the ultimate moment capacity of the connection Mu computed with the limit analysis; and the internal variable a with the dissipated energy as a key shape variable for the model formulation. Thermodynamics is used to define these variables and to develop the general form of the moment-rotation relationship of the spring.