TY - JOUR
T1 - Evaluation of the rotational stiffness of precast reinforced concrete beam-column connections
AU - Moreira, Gustavo
AU - Marreiros, Rui
AU - Marchão, Carla
AU - Reguengo, Romeu
N1 - Publisher Copyright:
© 2024 The Authors
The authors would like to acknowledge the support of Concremat – Soluções de Betão, S.A. precast facility for fabricating the tested
specimen
PY - 2024/6/1
Y1 - 2024/6/1
N2 - Usually, beam-column connections with steel dowels are treated as hinged connections. This approach overlooks the rotational restraining effect of the dowels. To study the behaviour of these types of connections, an experimental campaign was carried out. Three full-scale beam-column connections were tested, subjected to monotonic and cyclic displacements. The specimens were also simulated numerically to study the influence of the bond quality between the steel dowel and the grout on the stiffness of the connection. The numerical models were calibrated using the experimental results. The results showed that the restraining effect is not negligible and affects the effective length of columns, leading to smaller second-order effects.
AB - Usually, beam-column connections with steel dowels are treated as hinged connections. This approach overlooks the rotational restraining effect of the dowels. To study the behaviour of these types of connections, an experimental campaign was carried out. Three full-scale beam-column connections were tested, subjected to monotonic and cyclic displacements. The specimens were also simulated numerically to study the influence of the bond quality between the steel dowel and the grout on the stiffness of the connection. The numerical models were calibrated using the experimental results. The results showed that the restraining effect is not negligible and affects the effective length of columns, leading to smaller second-order effects.
KW - Beam-Column Connection
KW - Precast Concrete Structures
KW - Seismic Behaviour
UR - http://www.scopus.com/inward/record.url?scp=85189700249&partnerID=8YFLogxK
U2 - 10.1016/j.engstruct.2024.117933
DO - 10.1016/j.engstruct.2024.117933
M3 - Article
AN - SCOPUS:85189700249
SN - 0141-0296
VL - 308
JO - Engineering Structures
JF - Engineering Structures
M1 - 117933
ER -