The current project is designed to assess the level of damage that a realistic irregular bridge will undergo after the occurrence of an earthquake. This study encourages an improved understanding of post-seismic return to service and repair of an irregular bridge. A more sophisticated approach will be used to analyze the complex vibrations of the bridge in response to a seismic excitation and to simulate the progressive collapse of the bridge during an earthquake.
The industry partner of this project has an elevator modernization project that includes increasing the current speeds of their elevators by more than 30%. However, increase in speed is usually associated with increase in aerodynamic and lateral forces on the elevator cars, which can negatively affect ride quality and noise levels. The objective of this study is to examine the forces involved, and determine if the speed increases are within the Elevator Modernization Specification provided by industry experts.
A new type of ecologic ultra-High-performance glass concrete (UHPGC) has been developed at University of Sherbrooke through the use of waste glass materials of different particle-size distributions derived from glass culets. The developed UHPGC proved to give several technological, economical, and environmental advantages compared to the conventional ultra-high-performance concrete (UHPC). Producing UHPGC mixtures fitting the requirements of infrastructure market has not yet been investigated.
Corrosion of internal reinforcement of concrete bridges represents a significant issue. Due to a presence of deicing salts, cycles of freezing and thawing, sustained and repetitive loads, the concrete loses its ability to protect the internal reinforcement. Unprotected reinforcement starts to corrode sooner than anticipated and, therefore, reduces the bridge service life. To avoid shortening of the service life, and safe cost of maintenance, several types of advanced corrosion resistant materials have been developed.
Irwin's Industrial Safety is a leading provider of safety consulting, safety training, and safety operations management. Over the last 4 years, Irwins Safety has compiled data on project safety and efficiency over a wide scope of projects. Moving forward, Irwins Safety seeks research into how this data can best be analyzed, visualized, and used to optimize future projects. Before data can be analyzed, data scripting will be applied to transform the data into a suitable format.
Mitigating the corrosion of reinforcement in RC structures is a critical issue for Canadaâs civil infrastructure, especially with the continual use of deicing salts during winter. This pilot study will provide crucial information on the functional range of resistivity of repair materials/concretes and anode spacing, which will optimize the efficiency of an economical technology (zinc anodes) at protecting embedded reinforcement from the risk of corrosion.
Managing complex, fragmented, and high volume portfolios of data that are generated during the lifecycle of buildings poses major challenges for the Architecture, Engineering, Construction, and Operations (AECO) industry. Required information during the operation and maintenance phase of a building’s lifecycle is usually lost (or not transferred) at information handover stages, and extensive rework should be done to revive them. This projects aims to identify lifecycle information requirements for the operation and maintenance of buildings.
Many office and institutional buildings use concrete masonry walls as their loadbearing elements. They are required to withstand loads coming from their roof structures and also caused by wind and seismic events. This research project will determine the suitability of such masonry walls when subjected to these loads. Further, this project will research to improve the performance of these walls by introducing various new structural and construction details. The goal of this research will be accomplished through experimental and computer modeling techniques.
I-joists are composite timber beams mainly used in roof and flooring systems. They consist of oriented strand board (OSB) webs and timber flanges. For post-construction purposes, these beams are often drilled in the web or notched through the flange in order to pass the electrical/mechanical facilities through the openings. This can result in a significantly lower load-carrying capacity for these important elements. This study investigates the performance of I-joists with web holes and flange notches through experimental and numerical approaches.
Design of loadbearing, out-of-plane (OOP), tall masonry walls tends to have stringent limits related to their buckling stability and the scarcity of research on their structural reliability. This currently puts the masonry industry at a disadvantage as a construction alternative compared to other structural options.