Title:
Evaluation of Hollow-Core-FRP-Concrete-Steel Column and Footing Connection
Author(s):
Yadak
Publication:
Web Session
Volume:
ws_F23_Yadak.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/29/2023
Abstract:
Accelerated bridge construction (ABC) has gained popularity among state departments of transportation to minimize construction costs and time and optimize the use of materials. This research focuses on the connection details between hollow-core fiber-reinforced-polymer concrete-steel columns (HC-FCS) and their foundations. The column consists of a concrete core sandwiched between an outer fiber-reinforced polymer tube and an inner steel tube. Two foundation anchorage details are being tested with multiple embedment depths into the footing to evaluate the connection's capability to transfer axial load and bending moment and achieve the ultimate column flexural and shear capacities. Column-footing specimens are being cast and tested to failure to study the effect of embedment depth, diameter-to-thickness ratio, compressive strength of the concrete footing, and end-of-column anchorage on monolithically cast connection capacity. Two specimens utilizing a socket connection filled with Ultra-High Performance Concrete to represent connection of precast elements will also be tested.