| Title |
An Experimental Study on Precast Concrete Beam-Column Connection with Headed Anchor for Small Buildings |
| DOI |
https://doi.org/10.5659/JAIK.2022.38.6.221 |
| Keywords |
Precast concrete; Beam-column joint; Headed anchor; Headed rebar; Small building |
| Abstract |
This study aims to develop the precast concrete (PC) beam-to-column joint in a 3-story building where A-type PC column is used. A-type
PC column was developed to replace a pre-engineered building system suitable for warehouses and factories. To create a spacious interior, a
3-story PC structure with a central span of approximately 10m was analyzed; the beam members and the column members were designed
based on design codes. Then, two types of PC beam-column joints with mechanical anchors, often called headed bars, were developed. These
joints could be constructed easily and rapidly using mechanical anchors; connecting plates made of SM45C and high strength bolts for
splicing longitudinal rebars were placed inside the U-shell beam. Although the proposed PC beam-column joints exhibited a similar strength
to the monolithic joint, it also showed the failure mode of weak column-strong beam, a common structural behavior in small buildings.
Particularly, the PC joint using high tension bolts were determined for special moment frames according to ACI 374.1-05. |