Experimental assessment of the monotonic and cyclic behaviour of exterior RC beam-column joints built with plain bars and non-seismically designed

• Type: Article in International Scientific Journal
• Date: 2022

Authors

José Melo (Author) FEUP; Humberto Varum (Author) FEUP; Rossetto, T (Author) Other

Journal

Title: Engineering Structures

Vol. 270

ISSN: 0141-0296

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Other information

Authenticus ID: P-00X-4YS

DOI: 10.1016/j.engstruct.2022.114887

Abstract (EN): The seismic behaviour of reinforced concrete structures built with plain reinforcing bars is sometimes condi-tioned by the slippage between the reinforcing bars and the surrounding concrete in the elements as exterior beam-column joints. The anchorage of the beam reinforcing bars in the core joint with weak concrete confinement, inappropriate reinforcement detailing for seismic loads and poor bond properties are the common reasons for collapse of many structures. This paper presents the results of four unidirectional cyclic tests and two unidirectional monotonic tests carried out on full-scale exterior beam-column joints built with plain and deformed reinforcing bars. These specimens are representative of reinforced concrete structures built without adequate reinforcement detailing for seismic loads. The influence of bond properties, lapping of the longitudinal bars, anchorage of the beam reinforcing bars and loading on the beam-column joints response are investigated.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 14