Browsing Civil and Environmental Engineering by Title
Now showing items 743-762 of 878
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Semi-Automated Methods for Measuring Practice Conformance for Capital Projects
(University of Waterloo, 2020-08-06)The goal of this thesis is to explore semi-automated methods for measuring practice conformance for capital projects. Thorough measurement of practice conformance for capital projects typically requires manual audits. ... -
Semi-Automated Microscopic Traffic Flow Simulation Development Using Smart City Data
(University of Waterloo, 2021-08-24)Microscopic traffic simulation models have been widely used by transportation planners and engineers for conducting various road network planning and traffic engineering tasks. Due to data limitations, traffic simulation ... -
Semi-continuous measurement of oxygen demand in wastewater using biofilm-capacitance
(Elsevier, 2018-09-01)Bio-capacitive coulombs were tested for determination of the 5-day biochemical oxygen demand (BOD5) using a dual-chamber microbial electrochemical cell (MxC) operated at charging (open circuit) and discharging (close ... -
Sensitivity of Field Data and Field Protocols in One-Dimensional Hydraulic Modelling
(University of Waterloo, 2009-01-20)Over one million simulations were conducted using the Hec-Ras4b (US Army Corps of Engineers, 2004) model to evaluate the sensitivity of model predictions to field data accuracy, density and estimation techniques and provide ... -
Setting Target Rates for Construction Activity Analysis Categories
(University of Waterloo, 2012-04-24)This thesis is focused on increasing productive actions in construction by a procedure known as Activity Analysis. Activity Analysis is a continuous productivity improvement tool for identifying barriers to site productivity ... -
Shear Behaviour of Disturbed Regions in Reinforced Concrete Beams with Corrosion Damaged Shear Reinforcement
(University of Waterloo, 2008-08-29)Corrosion of reinforcing steel is a major problem facing infrastructures owners with billions of dollars spent in repairing our aging infrastructure. One of the first steps in the repair process is to quantify the strength ... -
Shear Behaviour of Slender RC Beams with Corroded Web Reinforcement
(University of Waterloo, 2013-04-29)This research study examined the effect of corrosion of web reinforcement (stirrups) on the shear behaviour of slender reinforced concrete (RC) beams. The experimental program consisted of seventeen slender shear-critical ... -
Shear deformation effects on stability of unbraced steel frames in variable loading
(Journal of Constructional Steel Research, 2019-11-11)The generalized lateral stiffness equation of a semi-rigidly connected frame with accounting for shear deformation is derived in this paper. The lateral stiffness equation can be used to determine the critical loads of ... -
Shell-Based Finite Element Analysis of Reinforced Concrete Slabs Subjected to Non-uniform Stress Distribution at Column Connection Regions
(University of Waterloo, 2022-08-29)RC flat plates design provisions and mechanical models have been developed in a highly-idealized manner and, as a result, loosely represent the performance of real-world RC flat plates. Part of this inadequacy is due to ... -
Short-Term and Long-Term Mechanical Properties of CIPP Liners
(University of Waterloo, 2015-08-18)Cured In-Place Pipe (CIPP) is a well-established method used for rehabilitation of underground pipelines. Within North America, CIPP liners used for rehabilitation of gravity pipelines are typically designed according to ... -
Short-term Prediction of Freeway Travel Times Using Data from Bluetooth Detectors
(University of Waterloo, 2013-12-11)There is increasing recognition among travelers, transportation professionals, and decision makers of the importance of the reliability of transportation facilities. An important step towards improving system reliability ... -
Short-Term Travel Time Prediction on Freeways
(University of Waterloo, 2019-05-30)Short-term travel time prediction supports the implementation of proactive traffic management and control strategies to alleviate if not prevent congestion and enable rational route choices and traffic mode selections to ... -
Simplified Seismic Design for Mid-Rise Buildings with Vertical Combination of Framing Systems
(University of Waterloo, 2016-01-11)The mid-rise building with vertical combination of framing systems consists of a structural system in which the seismic-force-resisting-system (SFRS) of the upper structure is commonly a lightweight structural system such ... -
Simulating the Effects of Enclosure Retrofits on Post-War High-Rise Apartment Buildings in Cold Climates
(University of Waterloo, 2011-08-31)A large portion of the existing building stock in North America is comprised of post-World War II high-rise apartment buildings, particularly in the Greater Golden Horseshoe in Ontario. They are home to a large portion of ... -
Simulation Modelling and Analysis of Impact of 3D Feedback Workflow on Prefabrication of Industrial Construction
(University of Waterloo, 2020-09-11)The construction industry has not been experiencing the same level of productivity increase as the manufacturing industry, due to their divergent production methods. While traditional construction projects are unique, ... -
Simulation of Cracks in a Cosserat Medium using the eXtended Finite Element Method
(University of Waterloo, 2013-02-15)This research investigates fracture behaviour in the Cosserat materials. The Cosserat elasticity description of the materials incorporates a characteristic length scale (e.g. grains, particles, fibres, etc.) into the model. ... -
Simulation of Hydraulic Stimulation: Acoustic Wave Emission in Fractured Porous Media Using Local and Global Partition-of-Unity Finite Element
(University of Waterloo, 2018-09-25)Hydraulic Fracturing (HF) is an effective stimulation process for extracting oil and gas from unconventional low-permeable reservoirs. The process is conducted by injecting high-pressure fluids into the ground to generate ... -
Simulation of Induced Acoustic Emission in Fractured Porous Media
(Elsevier, 2019-04-01)Acoustic/microseismic Emissions (AE) in naturally fractured porous media are the result of local instability along internal interfaces and the sudden release of strain energy stored in the rock matrix. This rapid release ... -
Simulation of multiple hydraulically driven fractures
(University of Waterloo, 2015-09-22)Hydraulic fracturing is a process that is used to release and extract natural gas from the pores of shale rocks. The process involves drilling vertical and horizontal wells through shale formation beds. After which, a ... -
Simultaneous nitrification, denitrification, and phosphorus removal at low temperatures
(University of Waterloo, 2022-05-10)Simultaneous nitrification, denitrification, and phosphorus removal (SNDPR) has been demonstrated to be a promising technology for carbon, nitrogen, and phosphorus removal. However, SNDPR has not been fully studied at low ...