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Structural Engineering

Reinforced Concrete

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Full-Text Articles in Engineering

Experimental And Numerical Study Of Precast Concrete Pipe With Single Elliptical Steel Cage Reinforcement, Abdullah Samir Ramadan Jul 2020

Experimental And Numerical Study Of Precast Concrete Pipe With Single Elliptical Steel Cage Reinforcement, Abdullah Samir Ramadan

Electronic Thesis and Dissertation Repository

Reinforced concrete pipe (RCP) with single elliptical (SE) reinforcement offers cost savings and is permitted by Canadian and American standards. Yet, its use has not yet gained momentum primarily due to limited knowledge of its structural performance. This study explores the structural behaviour of full-scale 1050 mm and 1200 mm diameter RCP reinforced with SE cold drawn steel wire cage under the Three-Edge Bearing Test. Results indicate that RCP with SE reinforcement designed per current standards did not meet the specified 0.3-mm crack and ultimate load capacity. Hence, pertinent provisions in CSA A257.2 and ASTM C76 for RCP need to …


Performance-Based Design Of Fire-Exposed Reinforced Concrete Elements Using An Equivalent Standard Fire, Robert T. Kuehnen Apr 2019

Performance-Based Design Of Fire-Exposed Reinforced Concrete Elements Using An Equivalent Standard Fire, Robert T. Kuehnen

Electronic Thesis and Dissertation Repository

Fire events represent one of the most severe loading scenarios for reinforced concrete (RC) buildings. In lieu of intensive computational analysis, designers need simplified methods to assess RC members exposed to natural fires. This thesis focuses on the development of a time equivalent (te) to replace a natural fire with an equivalent standard fire, allowing for the implementation of existing simplified analysis methods.

The proposed te is based on the average internal temperature profile (AITP) that develops in a section during fire. Two AITP te are proposed to accurately or conservatively approximate the AITP of …


Concrete Bridge Girders With Exposed Flexural Reinforcement, Trevor K. Scott Jan 2013

Concrete Bridge Girders With Exposed Flexural Reinforcement, Trevor K. Scott

Electronic Thesis and Dissertation Repository

Reinforced concrete highway bridge girders are regularly repaired by replacing deteriorated concrete with new concrete, temporarily exposing the flexural reinforcement. The absence of bond between the concrete and steel at this stage makes it difficult to compute the flexural capacity and the current code criteria provide no guidance to assist practitioners.

The research reported in this thesis rectifies this knowledge gap. A thorough examination is presented of experimental and analytical investigations by others to determine the typical behaviour, including probable failure modes, of reinforced concrete specimens with exposed flexural reinforcement. Based on these findings, two analytical approaches are developed to …