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Civil and Environmental Engineering

2012

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Full-Text Articles in Architecture

Climate Change Adaptation Chapter: Marshfield, Massachusetts, Joshua H. Chase, Jonathan G. Cooper, Rory Elizabeth Fitzgerald, Filipe Antunes Lima, Sally R. Miller, Toni Marie Pignatelli Dec 2012

Climate Change Adaptation Chapter: Marshfield, Massachusetts, Joshua H. Chase, Jonathan G. Cooper, Rory Elizabeth Fitzgerald, Filipe Antunes Lima, Sally R. Miller, Toni Marie Pignatelli

Landscape Architecture & Regional Planning Studio and Student Research and Creative Activity

Climate change, understood as a statistically significant variation in the mean state of the climate or its variability, is the greatest environmental challenge of this generation (Intergovernmental Panel on Climate Change, 2001). Marshfield is already being affected by changes in the climate that will have a profound effect on the town’s economy, public health, coastal resources, natural features, water systems, and public and private infrastructure. Adaptation strategies have been widely recognized as playing an important role in improving a community’s ability to respond to climate stressors by resisting damage and recovering quickly.

Based on review of climate projections ...


Integrating Web-Based Visualization With Structural System Understanding To Improve The Technical Education Of Architects, Mehdi Setareh, Felipe Bacim, Brett D. Jones, Nicholas F. Polys, Tianyu Geng, Robert Orsa Dec 2012

Integrating Web-Based Visualization With Structural System Understanding To Improve The Technical Education Of Architects, Mehdi Setareh, Felipe Bacim, Brett D. Jones, Nicholas F. Polys, Tianyu Geng, Robert Orsa

Center for e-Design Publications

The relationship between structure and form has become an important topic of educational research in architecture. The new trend in architecture is to create elegant and efficient designs that are adequately responsive to environmental conditions such as various applied loads. This has created a challenge in architectural education to train architects who are aware of the relationships between structure and form. This paper provides the results of a collaborative effort among the schools of Architecture and Design, Computer Science, and Education at Virginia Tech to develop a web-based learning tool called "Structure and Form Analysis System” (SAFAS). SAFAS consists of ...


Bond Between Self-Compacting Concrete And Reinforcement, Marian Sabau, Traian Onet, Ioan Pop Nov 2012

Bond Between Self-Compacting Concrete And Reinforcement, Marian Sabau, Traian Onet, Ioan Pop

Marian Sabau

This paper study the bond behaviour of self-compacting concrete (SCC) in comparison to normal vibrated concrete (NVC). In this paper are presented the following parameters: the influence of bar diameter, the influence of concrete quality, the top-bar effect, the influence of active and passive confinement. In literature, different test results are found for the bond strength in SCC, which deliver contradictory results, but internationally it seems to be agreed that bond strength in SCC is slightly higher than NVC.


Hardened Properties Of Self-Compacting Concrete, Marian Sabau, Traian Onet, Ana Ioana Petean Nov 2012

Hardened Properties Of Self-Compacting Concrete, Marian Sabau, Traian Onet, Ana Ioana Petean

Marian Sabau

This paper presents the properties of hardened self-compacting concrete (SCC) and compare them to those reported for normally vibrated concrete (NVC). The mechanical properties evaluated are: compressive strength, modulus of elasticity, tensile strength, creep, shrinkage and bond with reinforcement. The very wide range of materials and mixes already used for SCC produced a significant scatter of data, but clear conclusions have been obtained. The compressive strength of SCC was likely to be the same or greater than that of NVC by using the same content of cement and water. Modulus of elasticity of SCC was lower than that of NVC ...


The Current State Of Wireless Information Technology Among Employers Of Bowling Green State University Construction Management Students, Aaron Seymour Oct 2012

The Current State Of Wireless Information Technology Among Employers Of Bowling Green State University Construction Management Students, Aaron Seymour

Master of Technology Management Plan II Graduate Projects

Successful implementation of wireless technology in the construction industry has the potential to streamline the building process and improve the service that is delivered to the owners of projects. A need exists for improving access and transfer of digital communication and documentation, regardless of the time or location. Recent developing trends in technology promise to introduce efficiencies that were not previously available within the industry. This study seeks to identify the current state of wireless information technology among employers of Bowling Green State University Construction Management students. The research design analyzed quantitative data from a web-based survey that presented results ...


Prelude To A Master Plan: Ware, Massachusetts, Belen Alfaro, Bruno Carneiro, Margaret Engesser, Kathryn E. Fox, Evadne R. Friedman, Timothy Inacio, Anita Lockesmith, Christina Mills, Stephanie Molden, Meagen Mulherin, Russell Pandres, Vinicius Pereira, Brian Reid, Pedro Soto, Jennifer Stromsten Oct 2012

Prelude To A Master Plan: Ware, Massachusetts, Belen Alfaro, Bruno Carneiro, Margaret Engesser, Kathryn E. Fox, Evadne R. Friedman, Timothy Inacio, Anita Lockesmith, Christina Mills, Stephanie Molden, Meagen Mulherin, Russell Pandres, Vinicius Pereira, Brian Reid, Pedro Soto, Jennifer Stromsten

Landscape Architecture & Regional Planning Studio and Student Research and Creative Activity

Prelude to a Master Plan offers ideas, recommendations, and a toolkit to help the town chart its own path towards that future. While the teams and individual students worked to ‘drill down’ into specific topic areas, the Studio defined three basic areas in order to think about how the various assets, challenges and ideas undermine or reinforce one another. The report is loosely organized in those terms: addressing the outlying rural areas and issues specific to these places, considering one of the key growth areas that has extended from town and the conflicts that arise from the many uses occurring ...


The Bridge Newsletter Winter 2012, Missouri University Of Science And Technology Oct 2012

The Bridge Newsletter Winter 2012, Missouri University Of Science And Technology

The Bridge Newsletter

-Creating bridge beams that will last 100 years
-Great school, great price
-Recruiting technical minds
-Combatting obesity, diabetes


Framework For Formative Assessment Learning Strategies In Built Environment Higher Education Programmes, Lloyd Scott, Christopher Fortune Sep 2012

Framework For Formative Assessment Learning Strategies In Built Environment Higher Education Programmes, Lloyd Scott, Christopher Fortune

Conference papers

Formative assessment has begun to be recognized as a driving force for enhancing student learning. This paper addresses the context of Built Environment (BE) undergraduate programmes and the findings from a research project in the context of the changing Higher Education (HE) environment. The analysis of the literature on formative assessment shows that there is a common concern among the educational researchers about the function and position of assessment in HE today. The overall aim of this research is to contribute to an improvement in the quality of student learning in BE undergraduate education through the development of a theoretical ...


Use Of Building Information Modelling In Responding To Low Carbon Construction Innovations: An Irish Perspective., Barry Mcauley, Alan V. Hore, Roger West Jul 2012

Use Of Building Information Modelling In Responding To Low Carbon Construction Innovations: An Irish Perspective., Barry Mcauley, Alan V. Hore, Roger West

Conference papers

At present the Irish construction industry is facing one of its most uncertain and challenging periods and will see major cuts in all areas of the economy in 2012. Despite this, Ireland pushes forward in sustainability initiatives with the Government ruling that environmentally-friendly policies are to get priority in competing for State contracts worth up to €16 billion a year. This and further initiatives are in place, so as to reduce greenhouse gas emissions by up to 20% by the year 2020.By the end of 2018 the public sector must own or rent only buildings with high energy-saving standards ...


Implementing Building Information Modeling In Public Works Projects In Ireland, Barry Mcauley, Alan V. Hore, Roger West Jul 2012

Implementing Building Information Modeling In Public Works Projects In Ireland, Barry Mcauley, Alan V. Hore, Roger West

Conference papers

The Irish State in recent years has suffered huge financial losses in the public works sector, which has now pushed the Irish Government to explore new ways of controlling cost. This background lead to the introduction of the Capital Works Management Framework in 2007 which aimed to support the certainty of outcome in terms of cost and quality, as well as improved risk management, through the implementation of fixed price contracts. In order to successfully compete within this framework it is recommended by the authors, that Irish Government moves towards the legal mandating of BIM. This can ensure a greater ...


Probabilistic Resilience Quantification And Visualization Building Performance To Hurricane Wind Speeds, Berna Eren Tokgoz Jul 2012

Probabilistic Resilience Quantification And Visualization Building Performance To Hurricane Wind Speeds, Berna Eren Tokgoz

Engineering Management & Systems Engineering Theses & Dissertations

Natural and man made disasters are unpredictable and unavoidable in today's world. Their frequency of occurrence and damages keep increasing. Due to the efforts to reduce negative consequences from such disasters, the concept of resilience has gained so much popularity in disaster management area especially after disasters like the September 11 attacks and Hurricane Katrina. Complex systems of today are under operational risks because of increasing threats and their high level of vulnerability. Hence, such systems need to adapt the concept of resilience for continuous operations. Resilience is a proactive concept which should incorporate both pre-event (preparedness and mitigation ...


Using Life Cycle Assessment Methods To Guide Architectural Decision-Making For Sustainable Prefabricated Modular Buildings, Jeremy Faludi, Michael Lepech, George Loisos Jul 2012

Using Life Cycle Assessment Methods To Guide Architectural Decision-Making For Sustainable Prefabricated Modular Buildings, Jeremy Faludi, Michael Lepech, George Loisos

Open Dartmouth: Faculty Open Access Scholarship

Within this work, life cycle assessment modeling is used to determine top design priorities and quantitatively inform sustainable design decision-making for a prefabricated modular building. A case-study life-cycle assessment was performed for a 5,000 ft2 prefabricated commercial building constructed in San Francisco, California, and scenario analysis was run examining the life cycle environmental impacts of various energy and material design substitutions, and a structural design change. Results show that even for a highly energy-efficient modular building, the top design priority is still minimizing operational energy impacts, since this strongly dominates the building life cycle's environmental impacts. However ...


3d Digital Modeling For Urban Design + Planning, Emmanuel Velazco Jun 2012

3d Digital Modeling For Urban Design + Planning, Emmanuel Velazco

City and Regional Planning

Cities throughout the country face a number of challenges in dealing with the changing development needs of the 21st century. In urban planning, the fusion of social, environmental, political, economic, and functional considerations are required. Today, local, state, and federal governments are experiencing an economic downturn, making resources scarce to plan for smarter development, attain greater public interest, and economic revival.

The primary objective of this project is to provide innovative solutions in city and regional planning using software applications, such as Google SketchUp, that enable assessment of various urban design projects. A second objective was to create a 3D ...


Performance-Based Analysis Of A Reinforced Concrete Shear Wall Building, Garrett Richard Hagen Jun 2012

Performance-Based Analysis Of A Reinforced Concrete Shear Wall Building, Garrett Richard Hagen

Master's Theses and Project Reports

PERFORMANCE-BASED ANALYSIS OF A REINFORCED CONCRETE SHEAR WALL BUILDING

Garrett Richard Hagen

In this thesis, a special reinforced concrete shear wall building was designed per ASCE 7-05, and then the performance was investigated using the four analysis procedures outlined in ASCE 41-06. The proposed building was planned as a 6-story office building in San Francisco, CA. The structural system consisted of a two-way flat plate and reinforced concrete columns for gravity loads and slender structural walls for seismic loads. The mathematical building models utilized recommendations from ASCE 41-06 and first-principle mechanics. Moment-curvature analysis and fiber cross-section elements were used in ...


Structural Performance Of Reinforced Concrete Flat Plat Buildings Subjected To Fire, Sara Jean George May 2012

Structural Performance Of Reinforced Concrete Flat Plat Buildings Subjected To Fire, Sara Jean George

UNLV Theses, Dissertations, Professional Papers, and Capstones

Reinforced concrete structures are typically considered to have inherent resistance to fire. However, several concrete structures around the world have experienced partial or total collapse under fire. Reinforced concrete flat-plate is a type of structural system widely used for office and residential buildings. Flat plate construction is prone to punching shear failure at slab-column connections which may lead to a catastrophic progressive collapse. The slabs of flat-plates generally have very thin concrete cover leaving steel reinforcement more sensitive to thermal loads. Little is known in the engineering community about the structural performance of flat-plate structures subjected to fire. Through a ...


Framework Development For Construction Safety Visualization, Kishor Shrestha May 2012

Framework Development For Construction Safety Visualization, Kishor Shrestha

UNLV Theses, Dissertations, Professional Papers, and Capstones

Throughout the history of the construction industry, many fatalities and injuries have occurred in construction sites. One of the major causes of accidents is unsafe site conditions; basically, this is due to inadequate supervision. To improve upon the traditional supervision approach, this study proposes a `Framework Development for Construction Safety Visualization' approach. In addition to this, a computer vision Edge Detection Algorithm was developed and tested to convert construction site still images into edges of the objects in the images. The framework development of this study uses computer vision, robot vision, image compression, pattern recognition, internet transmission, network communication, and ...


Legal Issues In Green Construction, Namrata Shrestha May 2012

Legal Issues In Green Construction, Namrata Shrestha

UNLV Theses, Dissertations, Professional Papers, and Capstones

The most recent "green construction movement", made a significant impact on the design and construction industry in the United States. Organizations such as the American Institute of Architects (AIA) have lobbied governmental entities to provide financial incentives to promote green construction. The green construction community also promotes the notion that a healthier working and living environment is achieved. Due to finical incentives coupled with projected long-term energy cost savings, many owners of new construction are considering green construction as an option. Accompanying the "green construction movement", new kinds of legal issues, particularly relating to green aspects such as certification, energy ...


Assessing Impermeable Surface Area Impacts On Modeling: Implications For The Combined Sewer Overflow Long Term Control Plan In Omaha, Nebraska, Andrew D. Szatko Apr 2012

Assessing Impermeable Surface Area Impacts On Modeling: Implications For The Combined Sewer Overflow Long Term Control Plan In Omaha, Nebraska, Andrew D. Szatko

Community and Regional Planning Program: Professional Projects

The report looks at assessing the accuracy of estimating impervious surface areas (ISAs) by zoning code, the method utilized by the City of Omaha, Nebraska. A 101 acre subcatchment had all ISAs manually digitized and compared the actual with the estimated value. The subcatchment was then modeled with 10 percent decreases of ISAs to establish the relationship with peak flow rates and total volume in the combined sewer service area. The results show a significant relationship between the two that may provide insights into a new approach to manage CSO events with the integration of green infrastructure.


A Carbon Dioxide Comparison Of Open Cut And Pipe Bursting, Akshay Joshi Apr 2012

A Carbon Dioxide Comparison Of Open Cut And Pipe Bursting, Akshay Joshi

Master of Technology Management Plan II Graduate Projects

This study focuses on the environmental aspect of the underground utility construction methods namely open-cut and pipe-bursting. The research is aimed at determining the CO2 emission due to the use of construction machinery as well as the excess CO2 emission due to the obstruction to traffic during the construction process. A Gravity sewer project in Bowling Green, OH was used as a case study. Open- cut method was implemented on this project and for the purpose of this research the pipe-bursting method was simulated. A 5100 feet long, 8 inches diameter pipeline was considered at a depth of 10 feet ...


A Model Of Housing Design And Neighborhood Planning In Abuja - Nigeria, Ekanem Amba Apr 2012

A Model Of Housing Design And Neighborhood Planning In Abuja - Nigeria, Ekanem Amba

Master of Technology Management Plan II Graduate Projects

The need for shelter is one of the most important necessities for mankind after sustenance. Over the years, the term ‘shelter’ has undergone series of modification either in shape, space, location or the materials used in constructing them but one thing remains the same; the need for a roof over one’s head is as vital to survival as time in itself.


Bioretention: Evaluating Their Effectiveness For Improving Water Quality In New England Urban Environments, Mary Dehais Mar 2012

Bioretention: Evaluating Their Effectiveness For Improving Water Quality In New England Urban Environments, Mary Dehais

Mary Dehais

Nonpoint source (NPS) pollution is one of the leading causes of water quality problems in the United States. Bioretention has become one of the more frequently used stormwater management practices for addressing NPS pollution in urbanized watersheds in New England. Yet despite increased acceptance, bioretention is not widely practiced. This study explores and evaluates the efficacy of bioretention for protecting urban water quality. This research found that numerous monitoring methods are used by researchers and industry experts to assess the effectiveness of stormwater best management practices (BMPs) and low impact development (LID) practices that include bioretention. The two most common ...


Quantifying The Life Cycle Benefits Of Performance-Based Design In Sustainable Design, David Isaac Carmona Mar 2012

Quantifying The Life Cycle Benefits Of Performance-Based Design In Sustainable Design, David Isaac Carmona

Master's Theses and Project Reports

ABSTRACT

Quantifying the Life Cycle Benefits of Performance-Based Design in Sustainable Design

David Carmona

For this thesis, a method is developed and tested for use with performance based design to quantify the sustainable and financial benefits of designing buildings to a structural performance level higher than Life-Safety. This paper starts to answer the question, “which would be a better investment: build structures to a performance level of Immediate Occupancy (IO) with the likelihood of less damage and downtime after an earthquake or continue to build to the building code’s implied minimum performance level of Life-Safety (LS)?”

An ASCE 7-05 ...


Kandovan A Village Inside The Rocks, Omidreza Saadatian Feb 2012

Kandovan A Village Inside The Rocks, Omidreza Saadatian


No abstract provided.


The Bridge Newsletter Spring 2012, Missouri University Of Science And Technology Feb 2012

The Bridge Newsletter Spring 2012, Missouri University Of Science And Technology

The Bridge Newsletter

-Light-weight foam could cushion expensive bridge repairs
-New Chancellor
-The house of the future today
-High-tech approach to project management


In Third Parties We Trust? The Growing Antitrust Impact Of Third-Party Green Building Certification Systems For State And Local Governments, Darren Prum, Robert Aalberts, Stephen Del Percio Jan 2012

In Third Parties We Trust? The Growing Antitrust Impact Of Third-Party Green Building Certification Systems For State And Local Governments, Darren Prum, Robert Aalberts, Stephen Del Percio

Darren A. Prum

According to the American Institute of Architects, there has been a 50 percent increase in the number of municipalities with a green building program in place since 2007. And 24 of the country's 25 largest metropolitan areas are built around a city with green building legislation on its books. Reducing buildings' environmental impact is a noble - and critical - goal. But governments' reliance on private, third-party standard-setting organizations - and the rating systems that they promulgate - as the basis for that legislation may be legally problematic.

This Article reviews one of those potentially problematic bases: antitrust. In order to suggest antitrust ...


Space, Place And Infrastructure: Designing An Integrated And Efficient Highway System For Hartford, Ct, George Theodore Phillips Jan 2012

Space, Place And Infrastructure: Designing An Integrated And Efficient Highway System For Hartford, Ct, George Theodore Phillips

The Trinity Papers (2011 - present)

No abstract provided.


An Investigation Of Optimal Control Of Desiccant-Enhanced Evaporative Air Conditioning, Aaron Patrick Boranian Jan 2012

An Investigation Of Optimal Control Of Desiccant-Enhanced Evaporative Air Conditioning, Aaron Patrick Boranian

Civil Engineering Graduate Theses & Dissertations

The purpose of this research is to determine an optimal control strategy for an air conditioner that simultaneously uses liquid desiccant dehumidification and indirect evaporative cooling. The advantages posed by liquid desiccant dehumidification are numerous: elimination of roughlysignificant reduction (80-90%) ofin electricity consumption, air pollutant removal, potential to use low-grade energy use for regeneration, and avoiding a need for excessive cooling and reheating of process air to achieve dehumidification. The National Renewable Energy Laboratory in Golden, CO has developed an innovative air conditioner that combines liquid desiccant dehumidification and indirect evaporative cooling, referred to as Desiccant-Enhanced Evaporative Air Conditioning, or ...


2:1 The Paper Tube Project, Noel Brady Jan 2012

2:1 The Paper Tube Project, Noel Brady

Articles

Review of applied technological solution to rapid building techniques using paper tube and analogous materials to create space enclosing geodesic systems.


Experimental Study And Theoretical Modeling Of Recycled Aggregate Concrete And Evaluation Of Long-Term Performance Of Reinforced Concrete Bridge Decks, Yu-Chang Liang Jan 2012

Experimental Study And Theoretical Modeling Of Recycled Aggregate Concrete And Evaluation Of Long-Term Performance Of Reinforced Concrete Bridge Decks, Yu-Chang Liang

Civil Engineering Graduate Theses & Dissertations

This dissertation covers two themes: one for experimental and theoretical studies of recycled aggregate concrete (RAC) and the other for the performance evaluation of chemical sealers applied to reinforced concrete (RC) bridge decks.

For the first theme, the research has found that a better mixing approach, better water to cement ratio, and more appropriate surface treatments can improve RAC's mechanical properties. We further checked its durability properties. Also, this research has developed a theoretical model for analyzing and predicting various properties of RACs such as bulk modulus, volume fraction, shear modulus, and shrinkage strain. One of the durability properties ...


Beauty In Buildings: How Beauty And Inspiration Impact Building Energy Performance, William Michael Goodrum Jan 2012

Beauty In Buildings: How Beauty And Inspiration Impact Building Energy Performance, William Michael Goodrum

Civil Engineering Graduate Theses & Dissertations

Consideration of beauty in the built environment is growing within the building sector as the broader concept of sustainable building design replaces the more narrowly defined concepts of high performance or green building. Similarly, as building design teams become more integrated, pairing architects, engineers, construction managers, and other professionals, the concepts of beauty and energy performance are approached collectively.

In research led by ml Robles, NCARB Architect at the PatternMapping institute, characteristics representative of beautiful buildings were identified and metrics and criteria relating these beauty characteristics to building energy performance were compiled to form a qualitative evaluation tool. A sample ...