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Effect of unloading rate on surface crack growth during underload cycles in X-65 pipeline steel exposed to near-neutral pH environments
DownloadSpring 2019
This thesis has studied the crack growth behaviour of fully-coated, partially-coated, and fully-exposed semi-elliptical cracks immersed in a near-neutral pH environment with an applied cathodic potential. The effects of adding a one-hour monotonic hold and waveform shape were explored. The...
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Spring 2024
Cantilever–suspended-span construction, commonly referred to as Gerber girder systems, is a popular roof-framing system for large single-storey buildings in North America. This system consists of a series of simply-supported girders in the principal framing direction that extend beyond the column...
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Spring 2021
Lateral–torsional buckling (LTB) is a stability failure mode that occurs in unbraced segments of flexural members and is associated with simultaneous out-of-plane lateral defection and cross-section rotation. The LTB behaviour of doubly symmetric I-shaped members is generally well understood....
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Fall 2020
Solidification during continuous casting of X70 microalloyed steel results in two types of elemental segregation; microsegregation (interdendritic) and macrosegregation (at the centerline). Both micro and macrosegregation lead to deterioration of steel properties and, hence, a lower degree of...
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Simplified seismic design methods for low-ductile steel multi-tiered concentrically braced frames
DownloadFall 2020
Multi-Tiered Concentrically Braced Frames (MT-CBFs) represent a bracing configuration where two or more concentric braced panels are stacked between the storey levels in multi-storey buildings or between the ground and roof levels in single-storey buildings such as sports facilities, airplane...
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Standardization and Testing of Embedded Plates for Design, Fabrication, and Construction Economy
DownloadSpring 2021
Embedded plates are commonly used to facilitate connecting structural steel members to reinforced concrete building elements such as walls and columns. Due to a lack of readily available industry-wide standard embedded plate designs, embedded plates are often custom designed for each project....