Journal:Journal of Building Engineering, Elsevier
Abstract:This paper proposes a novel reinforced concrete column-steel beam (RCS) joint suitable for prefabricated hybrid structures. Twelve interior RCS joint subassemblies were tested under cyclic lateral loading. The main test parameters include beam-column capacity ratio coefficient (ηbc), joint capacity ratio coefficient (ηj), and thickness (t) of the joint web plate (JWP). The results showed that the proposed joint details ensured good integrity and deformation performance of the RCS joint subassemblies. The ultimate drift ratio of most specimens was up to 4.0%. The capacity ratio coefficients were the main factors affecting the failure mode. For the specimens with ηbc less than 1, the steel beam observed flexural failure mode, and featured stable full hysteretic loops. The specimens with ηbc greater than 1, the RC column observed flexural failure mode and exhibited a stable but slightly pinched hysteretic response. The specimens with ηj of less than 1 observed concrete damage in the joint region and showed a more pinched hysteretic response. The flexural deformation of steel beams and RC columns contributed to the lateral drift of the specimens. No brittle joint shear failure occurred in specimens, which showed that the proposed joint details can meet the requirements of strong joint-weak member in seismic design.
Indexed by:Journal paper
Discipline:Engineering
First-Level Discipline:Civil Engineering
Document Type:J
Volume:63:
Page Number:105455
Translation or Not:yes
Date of Publication:2022-10-25
Included Journals:SCI
DOI number:10.1016/j.jobe.2022.105455
Links to published journals:https://doi.org/10.1016/j.jobe.2022.105455