PARAMETRIC STUDY ON HEADED ANCHORAGE SYSTEM IN R/C BEAM COLUMN JOINTS

Abstract

Congestion of reinforcement and constrained geometric conditions are often imposed design limitations and constructability issues in R/C beam column joints. The seismic conditions of beam column joints exhibit complex force transfer mechanism than any other part of structural system. Research studies identified that detailing aspects and configuration of joint reinforcement will significantly influencing both strength and ductile performance of beam column joint. Use of headed bar anchorage system provides a viable solution than conventionally used hooked bars in R/C beam column joints. Headed bar facilitate ease of fabrication, placement, and reduce reinforcement congestion in the integrated joint system. This paper comprehensively discussed about headed bar anchorage mechanism and associated parametric influence in beam column joints under quasi static and dynamic loads. Further this study
promoted the usage of headed bar anchorage system in high strength conditions of concrete, as the literature expressed deficiency of joint strength. The strength of joint is not at par with its connecting members in integrated joint system.