Civil and Environmental Engineering: Recent submissions
Now showing items 821-840 of 851
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Integrated performance assessment model for water distribution networks
( Taylor and Francis Ltd. , 2016 , Article)The American infrastructure report card in 2013 rated the US water system infrastructure with grade of ‘D’. The Canadian infrastructure report card in 2012 stated that around 15.4% of Canada’s water infrastructure has a ... -
Measuring construction materials price fluctuation risk
( Canadian Society for Civil Engineering , 2013 , Conference Paper)Construction projects costs are believed to be highly susceptible to a combination of internal and external factors. One of these factors is the prices of construction materials and the risk of their fluctuation. This paper ... -
Multi-Criteria Decision Making Models for Water Pipelines
( American Society of Civil Engineers (ASCE) , 2016 , Article)The deterioration of water pipelines leads to impaired water quality, increased breakage rate, and reduced hydraulic capacity. The planning of maintenance programs for water pipelines is essential to minimize health and ... -
Locating leaks in water mains using noise loggers
( American Society of Civil Engineers (ASCE) , 2016 , Article)Because of their potential danger to public health, economic loss, environmental damage, and energy waste, underground water pipelines leaks have received more attention globally. Researchers have proposed active leakage ... -
Optimizing postdisaster reconstruction planning for damaged transportation networks
( American Society of Civil Engineers (ASCE) , 2009 , Article)The limited availability of reconstruction resources is one of the main challenges that often confront postdisaster recovery of damaged transportation networks. This requires an effective and efficient deployment and ... -
Use of local discarded materials in concrete
( Elsevier , 2014 , Article)Steel slag, a by-product of steel manufacturing, is generated in large quantities in Qatar. In fact, it is estimated that more than 400,000tons of steel slag are generated annually in the country. Gravel, resulting from ... -
Combined influence of temperature and flow rate of feeds on the performance of forward osmosis
( Elsevier , 2016 , Article)The effect of the membrane orientation, feeds flow rate, feeds temperature, and combining effect of both temperature and flow rate on the membrane flux was investigated in order to enhance the performance of forward osmosis ... -
Comparison of SimTraffic and VISSIM Microscopic Traffic Simulation Tools in Modeling Roundabouts
( Elsevier B.V. , 2015 , Conference Paper)Abstract SimTraffic and VISSIM are two microscopic traffic simulation tools that are capable of modeling arterial roads with signalized intersections and roundabouts. This study compares the performance of the two simulation ... -
Flexural and interfacial behavior of externally bonded/ mechanically fastened fiber-reinforced polymer-strengthened reinforced concrete beams
( American Concrete Institute , 2014 , Article)The determination of structural behavior requires advanced numerical methods, of which results are substantiated by credible experimental findings. This research aims to create precise finite element models for fiber-reinforced ... -
Simplified vibration response prediction for slender monumental stairs
( American Society of Civil Engineers (ASCE) , 2014 , Conference Paper)Slender monumental stairs are major architectural features in hotels, condominiums, hospitals, and other high-end building structures. Architectural requirements for these are usually very aggressive, with long spans and ... -
Estimating the elastic settlement of vertically loaded single piles in rock
( Trans Tech Publications , 2014 , Article)An extensive finite element analysis was performed to study the settlement behavior of vertically loaded piles entirely embedded in non-homogeneous rock. To avoid utilizing interrelated parameters, pile-rock relative ... -
Stability charts for uniform slopes in soils with nonlinear failure envelopes
( Elsevier B.V. , 2014 , Article)Based on the results of an extensive parametric study, charts were developed for assessment of the stability of uniform slopes in soils with nonlinear shear strength failure envelopes. The study was conducted using envelopes ... -
Numerical modeling of shear strengthened reinforced concrete beams using different systems
( American Society of Civil Engineers , 2014 , Article)This research aims at creating finite-element models for fiber-reinforced polymer (FRP) shear strengthened concrete beams. It is inspired by the fact that the determination of the structural behavior of shear strengthened ... -
A model for predicting failure of oil pipelines
( Taylor & Francis , 2014 , Article)Oil and gas pipelines transport millions of dollars of goods everyday worldwide. Even though they are the safest way to transport petroleum products, pipelines do still fail generating hazardous consequences and irreparable ... -
Experimental investigation of the influence of grain geometry on residual NAPL using synchrotron microtomography
( Elsevier B.V. , 2014 , Article)The objective of this work was to investigate the impact of grain geometry (size and shape) of porous media on the morphology of residual NAPL. Synchrotron microtomography was used to obtain maps of residual NAPL in ... -
Condition prediction models for oil and gas pipelines using regression analysis
( American Society of Civil Engineers (ASCE) , 2014 , Article)Although they are the safest means of transporting oil and gas products, pipelines can sometimes fail with hazardous consequences and large business losses. The decision to replace, repair, or rehabilitate depends mainly ... -
Modeling of the sustainability goal and objective setting process in the predesign phase of green institutional building projects
( American Society of Civil Engineers (ASCE) , 2014 , Article)The process of constructing a sustainable green building presents a number of challenges compared with regular buildings. Additional work and documentation is needed in every stage of the project life cycle for the sustainable ... -
Implementation of mechanistic-empirical pavement analysis in the State of Qatar
( Taylor & Francis , 2014 , Article)The State of Qatar is experiencing tremendous growth in infrastructure including road network and highways. The current methods used in design of asphalt pavements in the State of Qatar are empirical and might not be ... -
Critical factors determining bid/no bid decisions of contractors in Qatar
( American Society of Civil Engineers (ASCE) , 2014 , Article)To bid or not to bid for construction projects is a crucial strategic decision for contractors' sustainability in the industry. The high complexity and uncertainty associated with such a decision-making process, which ... -
Characteristics of olive mill solid residue and its application in remediation of Pb2+, Cu2+ and Ni2+ from aqueous solution: Mechanistic study
( Elsevier , 2014 , Article)This study investigated the use of untreated olive mill solid residues (OMSR) as a solid extractant for Pb2+, Cu2+ and Ni2+ ions from aqueous solution. It was shown that the solution initial pH value affected the metal ...
