Failure Prevention of Below and Above Ground Rebar Cages

Failure Prevention of Below and Above Ground Rebar Cages

Phase II objective is to understand the failure mechanism of rebar cages and provide practical analysis, design, and detailing guidelines to prevent failure of below-ground rebar cages reinforced with mechanical connectors as well as above-ground cages that may be braced by wire ropes (guy wires). Phase II aims to leverage the knowledge gained in Phase I and understand the failure mechanism of rebar cages under lateral loading conditions through uneven tightening of wire ropes (guy wires), environmental loads, or accidental loads. These conditions are, for example, common during the installation of above-ground rebar cages. The objective is to provide practical analysis, design, and detailing guidelines to prevent failure of rebar cages reinforced with mechanical connectors.

• Grant Details

  Project

  Failure Prevention of Below and Above Ground Rebar Cages

  Category

  Construction Means and Methods

  Subcategory

  Concrete

  Grant #

  01-24

  Award Amount

  $409,996

  Grant Period

  1 June 2024 - 30 September 2027

  Grant Status

  Active

  Principal Investigators

  Hamed Ebrahimian, Assistant Professor, University of Nevada, Reno; Ahmad M. Itani, Foundation Professor and Associate Vice President for Research, University of Nevada, Reno

  Industry Champions

  Vincent Siefert, President, Siefert Associates LLC

  CPF Allies

  American Concrete Institute Foundation, American Society of Civil Engineers, Parsons Corporation, Kiewit, Siefert Associates, Clark Construction Group

• Resources / Downloads

  • Guidelines for Circular Rebar Cage Assembly with U-bolt Connectors

• Related Research

  • 01-20 Improving the Safety of Rebar Cages by Using Innovative Connectors