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Fall 2022

Liu, Jiadaren

Prestressed concrete (PC) highway bridges represent an integral part of the transportation network and contribute significantly to socio-economic development. However, highway bridges are susceptible to Deterioration and thus exhibit structural deficiency after years of service, especially in the

Fall 2024

Mokhtari, Mahdi

design method following the performance-based plastic design procedure is proposed to analyse MKFs and size the structural members. A prototype frame part of an office building is selected to demonstrate the performance of the proposed system and the design method. The MKF is also designed using the

of the structural performance of the MKF. The results indicate that the MKF buildings offer promising seismic loss metrics and that the economic loss of the MKF buildings is governed by non-structural repair costs under frequently occurring seismic events, while collapse and demolition dominate

Fall 2020

Azim, Md Riasat

operational response to provide information about the structural condition of the bridge. The methods also incorporate operational variability in terms of train speed and loading. The research contributions of this thesis are discussed in three parts. In the first part, a new damage detection method using

methods are developed for railway bridges that utilize statistical analysis techniques such as coefficient of variation and principal component analysis employing operational strain response that extracts damage features from structural elements. The damage features are investigated as the difference of

Fall 2020

Zain, Akram M

safety helped in growing the interest of designers and contractors toward modularization. Although there is wide agreement on modularization benefits to the construction industry, the transition to these new building techniques requires research and understanding of the structural behaviour of modular

innovative modular steel lateral load resisting system (LLRS) that can be integrated with the modular system to help in improving construction efficiency, while offering a safe and satisfactory structural performance. A new modular steel system for multi-storey buildings is proposed in this research project

. Two types of modules, gravity and braced, were introduced to carry gravity and lateral loads, respectively. The members and connections were selected based on availability in the market, structural performance, transportation constraints, and fabrication and erection benefits. The proposed braced

Fall 2013

Vafakhah,Hooman

A new and cost effective technique is developed to measure the rheological properties of cement paste and is validated through experiment and analytical analysis with the use of flow table. Instead of conventional methods, such as free flow test and modified mini slump test without drops, the...

Fall 2022

Abtahi, Shaghayegh

Reinforced concrete (RC) structures, such as RC bridges, are designed to remain safe and functional for their lifetime, during which the impacts of aging may result in performance degradation. Steel bar corrosion is one of the most common causes of structural performance degradation in RC

Spring 2019

Entz, Joseph

Tall, slender masonry walls are a competitive solution for resisting both out-of-plane (OOP) and gravity loads in low and high-rise structures. The use of taller and thinner walls is appealing due to the use of less material, need for smaller foundations, faster construction, lower seismic...

Spring 2018

Dousti, Mohammad Reza

The increase in oil consumption during the past few decades, coupled with oil/gas extraction from shale in the recent years has increased drilling and cementing demands. Well cementing operation is one of the most crucial and important steps in any well completion. However, since it takes place...

Fall 2019

Goncalves, Jose Roberto

The most common detrimental processes that lead to reduction in durability in reinforced concrete elements are shrinkage, sulphate attack and chloride attack. Shrinkage is a dimensional instability chiefly caused by a loss of moisture in the hydrating cement paste. Soluble sulphate ions take part...

Spring 2013

Hoseini,Meghdad

The durability of concrete is one of its most important properties and has been an attractive subject for research in recent years. One of the criteria that affect concrete durability is permeability. Transport processes in concrete have been investigated for several decades. However, the...