Open Access. Powered by Scholars. Published by Universities.®

Architecture Commons

Open Access. Powered by Scholars. Published by Universities.®

2011

Civil and Environmental Engineering

Institution
Keyword
Publication
Publication Type
File Type

Articles 1 - 30 of 45

Full-Text Articles in Architecture

Life Cycle Costing Template (Excel), Dermot Kehily Dec 2011

Life Cycle Costing Template (Excel), Dermot Kehily

Reports

No abstract provided.


Evaluation Of Pre-Consolidation Stress Determination Methods, Omar Conte, Stephanie Rust, Louis Ge, Richard Wesley Stephenson Dec 2011

Evaluation Of Pre-Consolidation Stress Determination Methods, Omar Conte, Stephanie Rust, Louis Ge, Richard Wesley Stephenson

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Pre-Consolidation Pressure Provides Valuable Information About Soil Behavior And, Specifically, Settlement under an Induced Load. Soil is Expected to Have Less Settlement Before its Pre-Consolidation Pressure and Much More Settlement after that Point. the Pre-Consolidation Pressure and the Compressibility of the Soil Can Be Determined from the Results of a One-Dimensional Consolidation Test. Different Methods Have Been Developed to Obtain the Accurate Pre-Consolidation Pressure from One Dimensional Consolidation Test Data. This Paper Presents and Discusses the Results of the One-Dimensional Consolidation Test Data from an Extensive Testing Program. the Test Specimens Used Were Obtained from Multiple Borehole Locations and Were …


Nonlinear Concrete Behaviour, Marian Sabau, Traian Onet Nov 2011

Nonlinear Concrete Behaviour, Marian Sabau, Traian Onet

Marian Sabau

This paper presents an overview of nonlinear behaviour in reinforced concrete structures. Structural concrete is a nonlinear material both at strength limit states and service loads. Are presented terms of effects that are primarily observed in concrete, steel or a combination of the two. When considering nonlinear behaviour, an important aspect is whether or not strain localization will occur as size effects. The model must first be validated by experiments and benchmark tests to ensure the safety and reliability criteria. In nonlinear finite element procedures, engineers must check their finite element discretization and modelling assumptions used in their analyses. Advanced …


Bs News November/December Nov 2011

Bs News November/December

Building Services Engineering

No abstract provided.


The Bridge Newsletter Winter 2011, Missouri University Of Science And Technology Oct 2011

The Bridge Newsletter Winter 2011, Missouri University Of Science And Technology

The Bridge Newsletter

-Living intentionally: Meet the Oerthers
-Making a lasting impact
-Phytoforensics
-The simple things of life


Phytoscreening For Chlorinated Solvents Using Rapid In Vitro Spme Sampling: Application To Urban Plume In Verl, Germany, Matt A. Limmer, Jean Christophe Balouet, Frank Karg, Don A. Vroblesky, Joel Gerard Burken Oct 2011

Phytoscreening For Chlorinated Solvents Using Rapid In Vitro Spme Sampling: Application To Urban Plume In Verl, Germany, Matt A. Limmer, Jean Christophe Balouet, Frank Karg, Don A. Vroblesky, Joel Gerard Burken

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Rapid Detection and Delineation of Contaminants in Urban Settings is Critically Important in Protecting Human Health. Cores from Trees Growing above a Plume of Contaminated Groundwater in Verl, Germany, Were Collected in 1 Day, with Subsequent Analysis and Plume Mapping Completed over Several Days. Solid-Phase Microextraction (SPME) Analysis Was Applied to Detect Tetrachloroethene (PCE) and Trichloroethene (TCE) to Below Nanogram/liter Levels in the Transpiration Stream of the Trees. the Tree Core Concentrations Showed a Clear Areal Correlation to the Distribution of PCE and TCE in the Groundwater. Concentrations in Tree Cores Were Lower Than the Underlying Groundwater, as Anticipated; However, …


Monitoring The Early-Age Hydration Of Self-Compacting Concrete Using Ultrasonic P-Wave Transmission And Isothermal Calorimetry, Bram Desmet, Kelly Chrysanthe Atitung, Miguel Angel Abril Sanchez, John Vantomme, Dimitri Feys, Nicolas Robeyst, Katrien Audenaert, Geert De Schutter, Veerle Boel, Gert Heirman, Özlem Cizer, Lucie Vandewalle, Dionys Van Gemert Oct 2011

Monitoring The Early-Age Hydration Of Self-Compacting Concrete Using Ultrasonic P-Wave Transmission And Isothermal Calorimetry, Bram Desmet, Kelly Chrysanthe Atitung, Miguel Angel Abril Sanchez, John Vantomme, Dimitri Feys, Nicolas Robeyst, Katrien Audenaert, Geert De Schutter, Veerle Boel, Gert Heirman, Özlem Cizer, Lucie Vandewalle, Dionys Van Gemert

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The Early-Age Hydration (B48 H) of a Series of Self-Compacting Concretes and Corresponding Mortars and One Traditionally Vibrated Concrete and Mortar is Monitored in a Continuous Way using Ultrasonic Testing and Isothermal Calorimetry. the Mixtures Differ in Type of Mineral Addition, Superplasticizer, Cement, Cement-To-Powder Ratio and Water-To-Powder Ratio. the Influence of These Different Mixture Compositions on the Kinetics of the Hydration during the First Days of the Hydration is Characterized by the Heat Production Rate Q and the Evolution of the P-Wave Velocity, which is a Consequence of the Microstructural Changes. the Variations in the Acceleration Caused by Mineral Additions …


Bs News September/October Sep 2011

Bs News September/October

Building Services Engineering

No abstract provided.


Earthquake-Induced Deformation Analysis Of A Bridge Approach Embankment In Missouri, W. Liu, Ronaldo Luna, Richard Wesley Stephenson, S. Wang Sep 2011

Earthquake-Induced Deformation Analysis Of A Bridge Approach Embankment In Missouri, W. Liu, Ronaldo Luna, Richard Wesley Stephenson, S. Wang

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Earthquake-Induced Deformations for a Bridge Approach Earth Embankment Are Predicted using a Calibrated Numerical Model. the Constitutive Soil Model is a Modified Hyperbolic Model that Uses Masing Rules and Incremental Pore Pressure Relations. the Model Was Calibrated using Both Laboratory and Field Data. a Shaking Table Physical Model Was Used to Verify the Numerical Simulation. Additionally, the Upper San Fernando Dam Was Modeled to Reproduce the Deformations in the 1971 Earthquake. the Subsurface and Embankment Soil Conditions Were Characterized using Field and Laboratory Methods. the Model Developed Was Used to Predict the Earthquake-Induced Deformations of an Approach Embankment to Bridge …


Special Issue On The 6th International Phytotechnologies Conference, St. Louis, Missouri, 2009: Conference Review, Joel G. (Gerard) Burken, Jason C. White Aug 2011

Special Issue On The 6th International Phytotechnologies Conference, St. Louis, Missouri, 2009: Conference Review, Joel G. (Gerard) Burken, Jason C. White

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

No abstract provided.


Comparison Of Design-Build And Design-Bid-Build Performance Of Public University Projects, James David Fernane Aug 2011

Comparison Of Design-Build And Design-Bid-Build Performance Of Public University Projects, James David Fernane

UNLV Theses, Dissertations, Professional Papers, and Capstones

With an unsure market and scarce work, owners across the United States, especially universities, are finding themselves in situations where they are unable to complete their projects within cost and schedule using the traditional delivery method: Design-Bid-Build (DBB). Under the DBB project delivery method, many competent contractors are electing to send low bids on projects just to keep work on their books, with plans to receive change orders once the project is underway; this practice is leading to cost and schedule overruns. Public universities across the United States are beginning to elect to use Design-Build (DB) as an alternate project …


Phytoforensics, Dendrochemistry, And Phytoscreening: New Green Tools For Delineating Contaminants From Past And Present, Joel Gerard Burken, Don A. Vroblesky, Jean Christophe Balouet Aug 2011

Phytoforensics, Dendrochemistry, And Phytoscreening: New Green Tools For Delineating Contaminants From Past And Present, Joel Gerard Burken, Don A. Vroblesky, Jean Christophe Balouet

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

As Plants Evolved to Be Extremely Proficient in Mass Transfer with their Surroundings and Survive as Earth's Dominant Biomass, They Also Accumulate and Store Some Contaminants from Surroundings, Acting as Passive Samplers. Novel Applications and Analytical Methods Have Been Utilized to Gain Information About a Wide Range of Contaminants in the Biosphere Soil, Water, and Air, with Information Available on Both Past (Dendrochemistry) and Present (Phytoscreening). Collectively These Sampling Approaches Provide Rapid, Cheap, Ecologically Friendly, and overall "Green" Tools Termed "Phytoforensics". © 2011 American Chemical Society.


A Life Cycle Comparison Of Light-Frame Wood And Insulated Concrete Form Building Envelopes: Energy Use And Green House Gases, Sherman Authur Matthews Aug 2011

A Life Cycle Comparison Of Light-Frame Wood And Insulated Concrete Form Building Envelopes: Energy Use And Green House Gases, Sherman Authur Matthews

Masters Theses

Given the building sector’s substantial contribution to global energy use and green house gas (GHG) emissions, it is of great importance that only the most effective building envelopes are utilized. Conventional light-frame wood building envelopes are highly popular due to their ease of construction and building economy; however the life cycle performance of the building envelope is often overlooked when this selection is made. Although insulated concrete form (ICF) building envelopes generally require a substantially higher embodied energy input, it should be considered that improvements during a building’s operation phase can offers significant energy returns, ultimately reducing the building’s life …


A Study On Facility Planning Using Discrete Event Simulation: Case Study Of A Grain Delivery Terminal., Sarah M. Asio Jul 2011

A Study On Facility Planning Using Discrete Event Simulation: Case Study Of A Grain Delivery Terminal., Sarah M. Asio

Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research

The application of traditional approaches to the design of efficient facilities can be tedious and time consuming when uncertainty and a number of constraints exist. Queuing models and mathematical programming techniques are not able to capture the complex interaction between resources, the environment and space constraints for dynamic stochastic processes. In the following study discrete event simulation is applied to the facility planning process for a grain delivery terminal. The discrete event simulation approach has been applied to studies such as capacity planning and facility layout for a gasoline station and evaluating the resource requirements for a manufacturing facility. To …


Bs News July/August Jul 2011

Bs News July/August

Building Services Engineering

No abstract provided.


A Slurry Consolidation Approach To Reconstitute Low-Plasticity Silt Specimens For Laboratory Triaxial Testing, Shuying Wang, Ronaldo Luna, Richard Wesley Stephenson Jul 2011

A Slurry Consolidation Approach To Reconstitute Low-Plasticity Silt Specimens For Laboratory Triaxial Testing, Shuying Wang, Ronaldo Luna, Richard Wesley Stephenson

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Silt Specimen Reconstitution using a Slurry Consolidation Approach is Commonly Used for Laboratory Testing. This Paper Presents a New Slurry Consolidation Approach to Reconstitute Silt Specimens for Use in Triaxial Testing. Silt Specimens Were Reconstituted in a Split Vacuum Mold Mounted on a Special Experimental Setup. the Uniformity of the Reconstituted Specimens Was Verified by Measuring the Water Content and Grain Size Distribution throughout the Specimens. the Testing Program Was Expedited using a Special Sample Handling Technique to Move the Specimen from the Special Experimental Setup to the Triaxial Chamber Base Platen. the Handling Process Did Not Disturb the Specimens …


An Environmental Economic Analysis Of Green Building And The Leadership In Energy And Environmental Design Rating System, John A. Manna Jun 2011

An Environmental Economic Analysis Of Green Building And The Leadership In Energy And Environmental Design Rating System, John A. Manna

Honors Theses

Buildings account for over 70% of U.S. energy consumption and produce 30% of the nation’s greenhouse gas emissions. With growing concerns over future energy prices, the green building industry and the LEED rating system have made it their goal to produce better performing, more efficient buildings. LEED projects have been implemented in all 50 states, with 46 implementing LEED into public policy. In this study we evaluate the environmental and economic benefits of the LEED certification process. A cost-benefit analysis provides a framework for assessing the life cycle of a LEED building, incorporating both energy and cost savings, as well …


Characterization Of Green Roofs And Their Potential Effects On The Union College Campus, Cybil Tribie Jun 2011

Characterization Of Green Roofs And Their Potential Effects On The Union College Campus, Cybil Tribie

Honors Theses

A green roof is the construction of protective layers and vegetation on the roof of a building. Green roofs are capable of providing ecological benefits to the environment as well as economic advantages for the client. Therefore, my thesis will explore the characterization features of green roofs by focusing on the layers they are made up of, the different types of green roofs, and the benefits they can provide. Although this technology is relatively new to the United States in comparison to places such as Germany, where green roofs have been extensively used for over 40 years, there is a …


Improving The Energy Efficiency Of Fero House Home Of Alpha Delta Phi, Matt S. Stankiewicz Jun 2011

Improving The Energy Efficiency Of Fero House Home Of Alpha Delta Phi, Matt S. Stankiewicz

Honors Theses

As our country continues to grow and prosper we are faced with a growing number of environmental issues. While many of these issues were ignored in the pursuit of economic growth, we are now facing the harsh realities of our unmitigated expansion. The continual mining and use of fossil fuels has scarred our landscapes, polluted our air, and contaminated our waterways. Our nation’s greenhouse gas emissions are higher than ever and contributing heavily to global warming. With the United States’ population constantly on the rise and projected to hit 350 million in little over a decade1, it appears that our …


In-Plane Cyclic Shear Performance Of Interlocking Compressed Earth Block Walls, David William Bland Jun 2011

In-Plane Cyclic Shear Performance Of Interlocking Compressed Earth Block Walls, David William Bland

Master's Theses

This thesis presents results from testing of interlocking compressed earth block (CEB) masonry shear walls. CEBs are low strength earth masonry units sometimes stabilized with cement or lime. The interlocking compressed earth blocks (ICEBs) used in this experiment are dry stacked interlocking hollow units, which can be reinforced and grouted after they are laid. Although significant research has been undertaken to optimize the material properties of CEBs, little has been done to investigate the performance of structural systems currently being built using this technology.

Test results are reported for three 1800 mm x 1800 mm wall specimens constructed with cement …


Variability Analysis Of Undrained Shear Strength For Reliability-Based Design, Site Onyejekwe, Xin Kang, Louis Ge, Richard Wesley Stephenson May 2011

Variability Analysis Of Undrained Shear Strength For Reliability-Based Design, Site Onyejekwe, Xin Kang, Louis Ge, Richard Wesley Stephenson

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Description of the Spatial Variation of Compositional and Mechanical Soil Parameters is Often Paramount in Site Characterization of Geotechnical Design and Analysis. the Values of the Parameters Themselves Largely Depend on In-Situ State Factors Which Are Related to Spatial Locations. Also, for Large-Scale Engineering Projects Such as Earth Dams or Highways, It is Generally Expected that Heterogeneous Site Characteristics Will Be Revealed by Investigations at Spatially Distant Locations. Currently, Most Reliability-Based Design Methods Are based on the Second-Moment Statistics (Mean and Variance). However, They Are Unable to Adequately Describe the Spatial Variation of Soil Properties. in This Paper, Spatial Correlation …


Spatial Variation And Correlation Between Undrained Shear Strength And Plasticity Index, Xin Kang, Site Onyejekwe, Louis Ge, Richard Wesley Stephenson May 2011

Spatial Variation And Correlation Between Undrained Shear Strength And Plasticity Index, Xin Kang, Site Onyejekwe, Louis Ge, Richard Wesley Stephenson

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

A Soil Variability Analysis is Presented in This Paper. About 317 Unconsolidated Undrained Triaxial Compression Tests (UU) Were Carried Out on Undisturbed Samples from Four Locations in Missouri. the Spatial Variation of the Undrained Shear Strength and Plasticity Index Was Described by the Second-Moment Statistics (Mean and Variance). Meanwhile, the Correlation between the Undrained Shear Strength and Plasticity Index Was Established and Compared with Other Published Empirical Equations. the Results from the Soil Variability Analysis Provide a Framework to the Reliability-Based Design. © 2011 ASCE.


How Much Do U.S. University Students Know, And Want To Know, About Sustainability And Green Building? The Findings Of A Survey, And Possible Implications For General Elective Curricula., Jeremy R. Farner May 2011

How Much Do U.S. University Students Know, And Want To Know, About Sustainability And Green Building? The Findings Of A Survey, And Possible Implications For General Elective Curricula., Jeremy R. Farner

Purdue Polytechnic Masters Theses

Using the survey approach, this investigation examined the attitudes and interest of college students at two universities in different geographic locations within the United States. Approximately 24,000 students from all disciplines and majors at Weber State University (WSU) in Utah, and 4,000 at Purdue University in Indiana, were invited to participate in a study to determine current knowledge, familiarity, and interest in topics within the sustainability and Green Building educational arena. The goal of this study was to determine what students already know, would like to know, and how much interest there would be in developing …


The Impacts Of Road Capacity Removal, Jason E. Billings May 2011

The Impacts Of Road Capacity Removal, Jason E. Billings

Master's Theses

The road infrastructure of North America is aging, and many governments are faced with a critical decision: do we repair or remove freeways from our urban centers? Freeway repair is exceptionally expensive, but removing a freeway is widely seen as a risky venture which may result in negative traffic effects. Therefore, it is necessary to gain a clearer understanding of how removing road capacity effects traffic distribution. Three freeway segments were ultimately selected for case study analysis: two in San Francisco and one in Milwaukee. This analysis consisted of identifying changes in the traffic volumes and volume-capacity (V/C) ratios in …


Develop Energy Dashboard For Real-Time Campus Energy Use Monitoring, Hsui-Lin Winkler, Charlene Hoegler, William Batina May 2011

Develop Energy Dashboard For Real-Time Campus Energy Use Monitoring, Hsui-Lin Winkler, Charlene Hoegler, William Batina

Cornerstone 3 Reports : Interdisciplinary Informatics

No abstract provided.


An Empirical Comparison Of Life Cycle Cost Of Green School Buildings And Non-Green School Buildings, Nitisha Pushpala May 2011

An Empirical Comparison Of Life Cycle Cost Of Green School Buildings And Non-Green School Buildings, Nitisha Pushpala

UNLV Theses, Dissertations, Professional Papers, and Capstones

One of the major economic concerns today of the world is reduction of energy consumption because of depleting energy sources in the world. The construction sector in the United States is also contributing in reducing the energy consumption and construction cost of the buildings by constructing cost and energy efficient buildings with energy efficient materials and techniques. The U.S Department of Energy introduced the Building Technologies Program that develops techniques, tools and technologies for making buildings more energy efficient. Other private bodies like the Leadership in Energy and Environmental Design (LEED), which is developed by the U.S. Green Building Council …


Bs News May/June May 2011

Bs News May/June

Building Services Engineering

No abstract provided.


How Much Do U.S. University Students Know, And Want To Know, About Sustainability And Green Building? The Findings Of A Survey, And Possible Implications For General Elective Curriculum., Jeremy R. Farner Apr 2011

How Much Do U.S. University Students Know, And Want To Know, About Sustainability And Green Building? The Findings Of A Survey, And Possible Implications For General Elective Curriculum., Jeremy R. Farner

Purdue Polytechnic Masters Theses

Using the survey approach, this investigation examined the attitudes and interest of college students at two universities in different geographic locations within the United States. Approximately 24,000 students from all disciplines and majors at Weber State University (WSU) in Utah, and 4,000 at Purdue University in Indiana, were invited to participate in a study to determine current knowledge, familiarity, and interest in topics within the sustainability and Green Building educational arena. The goal of this study was to determine what students already know, would like to know, and how much interest there would be in developing …


Environmental Value Engineering Assessment Of Horizontal Directional Drilling And Open Cut, Lameck Onsarigo Apr 2011

Environmental Value Engineering Assessment Of Horizontal Directional Drilling And Open Cut, Lameck Onsarigo

Master of Technology Management Plan II Graduate Projects

There has been a growing concern over the rate of deterioration of wastewater collection and water distribution systems in the United States. The ever-growing need for rehabilitation and replacement of these systems has led to the birth of a research program by the United States Environmental Protection Agency focused on addressing the water infrastructure needs. This program-Innovation and Research for Water Infrastructure for the 21st Century-lays emphasis on research focused on system rehabilitation. There is a marked change in the way that the public view the environmental needs with ‘green’ becoming ‘the new gold’. Man has been blamed, and rightfully …


Stochastic Hybrid Embodied Co2-Eq Analysis: An Application To The Irish Apartment Building Sector, Adolf Acquaye, Aidan Duffy, Biswajit Basu Apr 2011

Stochastic Hybrid Embodied Co2-Eq Analysis: An Application To The Irish Apartment Building Sector, Adolf Acquaye, Aidan Duffy, Biswajit Basu

Articles

Although embodiedCO2-eq analysis has seen recent developments as evident in the establishment of the ISO14040 and 14044 LCA standards, it is recognized that due to weaknesses in gathering data on product-related emissions,embodiedCO2-eq values are probabilistic. This paper presents a stochastic analysis of hybrid embodied CO2-eq in buildings to account for this weakness in traditional methods and, by way of example, applies it to an Irish construction-sector case study. Using seven apartment buildings, 70,000 results are simulated with Monte Carlo analysis and used to derive probabilistic and cumulative embodied CO2-eq intensity distributions for apartment buildings in Ireland. A Wakeby distribution with …