Bond strength and development length of GFRP hooked bars

Infrastructure is facing significant environmental effects and climate change effects, compound by service conditions, which lead to rapid deterioration of bridges or marine structures for example. Corrosion of steel reinforcement in concrete structures is perhaps the main concern. Fiberglass reinforcing bars emerged as a promising alternative to steel bars and offer far better durability due to corrosion resistance. However, focus has been primarily on straight bars in long structures. There are many conditions where the length of the structural members is limited and a straight bar might slip prematurely from concrete. In this case a bent bar (or a hooked bar) is necessary. Very limited studies available on bent bars, perhaps only two, more than 30 years ago. This program will address modern fiberglass bent bars and provide critical test data that will enable updating a rather outdated design equation in design codes.

Faculty Supervisor:

Amir Fam

Student:

Partner:

Pultrall

Discipline:

Engineering

Sector:

Construction and infrastructure

University:

Queen's University

Program: