Architecture Commons^™

Mansfield Ct: Planning A New Village Center, Maggie Jones, Richard Barringer

Planning

The case follows the development of a plan for a new village center in Storrs, the central village of Mansfield, Connecticut. A process that was transparent and inclusive of the community members yielded a plan that gained the approval of the Town, the landowner (the University of Connecticut), and the citizenry. The process relied on the mending of fences, the leadership of key participants, and an innovative strategy that included development of a nonprofit corporation and creative use of grant money. While zoning changes are still in the works, the first stage of building goes forward.

Augusta Me: The New Bridge Begets A New Planned Neighborhood, Molly Pulsifer, Richard Barringer

Planning

Construction of a new Third Bridge over the Kennebec River in Augusta offered the prospect of a new and handsome gateway to the city. Further, the resulting change in traffic patterns offered the City the chance to plan for a pattern of development quite different from what the city had experienced for the past half-century. The case study describes the planning and construction of the new bridge and corridors that re-routed traffic out of Augusta’s downtown and older neighborhoods, and created the opportunity for planned development adjacent to the corridor created by the new bridge. It goes on to describe …

Program Assessment The Easy Way: Using Embedded Indicators To Assess Program Outcomes, Karl Fred Meyer, Allen C. Estes, Ronald W. Welch, David G. Winget

Architectural Engineering

The culminating design experience for civil engineering majors at the United States Military Academy (USMA) is CE492, Design of Structural Systems. CE492 serves as a “capstone” experience or one in which students are faced with a multi-disciplinary design project incorporating facets from all previous civil engineering courses. Previous capstone experiences have required students to design structures planned for construction or currently under construction at the Academy, thus providing an opportunity for site visitations and active participation with key players in the project development process. Since CE492 provides a multi-disciplinary experience, it also provides an ideal opportunity for the application of …

The Civil Engineering Faculty Of The Future, Allen C. Estes, Ronald Welch

Architectural Engineering

The American Society of Civil Engineers (ASCE) has published the Civil Engineering Body of Knowledge (BOK) for the 21st Century that attempts to define the knowledge, skills and attitudes required of a civil engineer. A section of that document addresses who should teach this body of knowledge. It concludes that civil engineering faculty must be scholars, effective teachers, practitioners, and role models. While true, there are a number of complex issues that arise such as whether it is possible for one person to possess all of these attributes, whether such a model best serves the projected trends in civil engineering …

"Putting A Fence Around" Architectural Engineering Undergraduate Research Projects, Edmond P. Saliklis

Architectural Engineering

The purpose of this paper is to provide practical suggestions of how to design and most importantly, how to limit the scope of proposed projects such that that an architectural engineering student can successfully participate in undergraduate research. Throughout the paper, the pedagogical benefits of such research projects will be emphasized. This paper will provide ideas and encouragement to faculty who may be hesitant to undertake research with undergraduate students. The paper closes with several successful case studies.

Two Alternative System Reliability Approaches To The Serviceability Condition Assessment Of Spillway Gate Systems On Dams, Allen C. Estes, Stuart D. Foltz

Architectural Engineering

Two competing methods were introduced for analyzing the condition of a structural system. The results produced by both were very different. In the weighted average approach, the system condition index will always be somewhere between the condition of the best and worst component in the system. In the traditional reliability approach, the condition index will always be lower than the condition of the worst member in a series system and higher than the condition of the best member in a parallel system. A traditional reliability approach works extremely well for a strength-based system where the importance factors of the components …

Amherst Ma: A New Village Plan For Atkins Corner, Maggie Jones, Richard Barringer

Planning

The case study describes a successful smart growth initiative in the town of Amherst, Massachusetts, at an intersection known as Atkins Corner. The initiative grew from two motivating factors: the necessity of realigning Route 116, a major north-to-south artery through the town, to decrease traffic accidents at the intersection and improve pedestrian safety; and a desire on the part of Hampshire College and the Town to create a village center at the intersection. Through a consensus-building process involving key town officials, Hampshire College, neighbors, and the design firm of Dodson Associates, agreement on the project was reached with local stakeholders …

Effects Of Changing The Amount Of Absorption In A Computer Model Of Queen’S Hall, Copenhagen, Denmark, Michelle C Vigeant, Lily M. Wang, Jens Holger Rindel

Durham School of Architectural Engineering and Construction: Faculty Publications

Room acoustics modelling and auralizations are very useful tools in the design of acoustically sensitive spaces. One area of improvement for auralizations is the method of modelling the source directivity. A new method to incorporate source directivity is multi-channel auralizations. This study first evaluates the objective effects of using four and thirteen channel impulse responses in an ODEON model of Queen’s Hall, where the actual variable absorption is changed within the model. Analyses of the results reveal great differences in the objective parameters of reverberation time and sound pressure level across each channel’s impulse response. Subjective studies were then conducted …

Inventions On Menu Interfacing For Gui Applications, A Triz Based Analysis, Part-3, Umakant Mishra

Umakant Mishra

This article analyses 15 patents on Menu System from a TRIZ perspective to find out their IFRs and Contradictions. The previous two parts of this article analysed ten patents on the menu interfaces. This part analyses five more patents from TRIZ perspective and draws out the conclusion that the TRIZ process and methodology is perfectly applicable to software inventions.

Indigenous Architecture For Expeditionary Installations, Matthew B. Hutchings

Theses and Dissertations

The purpose of this research was to improve the effectiveness of facility design and construction for expeditionary installations in the Middle East. Specifically, this thesis sought to answer three research questions addressing current military construction policies as well as historical design of desert dwelling cultures, a comparison of current construction assemblies with indigenous design, and synthesis of indigenous design techniques with modern materials, techniques, and requirements. The research questions were answered through a comprehensive literature review, rudimentary quantitative analysis, and architectural design. The research indicated the feasibility of incorporating indigenous design into facility construction on expeditionary installations to improve building …

Appropriate Characterization Of Background Noise Levels In The Workplace, Erica E. Bowden, Lily M. Wang

Durham School of Architectural Engineering and Construction: Faculty Publications

Overall loudness is not the only quality of indoor background noise that affects occupants. The distribution of noise across frequency (pitch), whether or not the noise contains tones, and whether or not the noise changes over time must also be considered. There are several indoor noise criteria systems available to quantify the background noise in rooms, but many of them do not account for these factors. These systems are commonly used by architects and engineers, and often incorporated into manufacturer’s data, design guides, and standards. There is much debate over which of the criteria systems best reflect how occupants will …

Room Acoustics In Coupled Volume Spaces, David T. Bradley, Lily M. Wang

Durham School of Architectural Engineering and Construction: Faculty Publications

The study of sound in the built environment is finding more awareness in the 21^st century. As this awareness has increased, and as computing power has grown, the method of computer modeling for studying room acoustics in such settings as classrooms, offices, and performances spaces has taken great strides in recent years. Of particular interest has been the study of the coupled volume space due to its unique ability to provide contrasting acoustical phenomenon. A coupled volume room is generally defined as a space consisting of a large main volume containing high levels of sound absorption connected through small …

Effects Of Noise On Productivity: Does Performance Decrease Over Time?, Jessica Errett, Erica Eileen Bowden, Marc Choiniere, Lily M. Wang

Durham School of Architectural Engineering and Construction: Faculty Publications

Most people at one time or another have found themselves irritated or distracted by the background noise in a building. The irritation might have resulted in minor aggravation or may have been dramatic enough to hinder their work. This leads us to ask whether occupants are increasingly aggravated by noise the longer they are exposed to it, or if they naturally habituate to their acoustic environment. In an effort to answer this question, a study was completed in the “Indoor Environment Lab” at the University of Nebraska. This lab resembles a typical office and was specially constructed to be acoustically …

A Review Of Diffuse Reflections In Architectural Acoustics, Jonathan Rathsam, Lily M. Wang

Durham School of Architectural Engineering and Construction: Faculty Publications

Diffuse reflections have received increasing attention in architectural acoustics over the past quarter century. The term diffuse refers to non-specular directions. This paper identifies three mechanisms that cause diffuse reflections. Practitioners have found that changing specular reflections into diffuse reflections can reduce noise and echoes both indoors and outdoors. Developers of acoustical modeling software have also found that modeling diffuse in additional to specular reflections produces more accurate predictions. The final portion of this paper presents results for a study of scattering coefficients in acoustical modeling software.

Measuring Sound Power In Ducted Heating, Ventilating, And Air-Conditioning (Hvac) Systems For Use In Verifying Acoustical Prediction Methods, Steven R. Ryherd, Lily M. Wang

Durham School of Architectural Engineering and Construction: Faculty Publications

This paper discusses issues regarding in-situ methods of obtaining sound power at a point in a heating, ventilating and air-conditioning (HVAC) duct system. Such a method is being used as part of a larger investigation on acoustical prediction methods to allow for comparison of measured data to results from attenuation predictions of individual duct elements, such as elbows or dampers. Sound propagation in HVAC duct work is complex. Any measurements of sound energy in the duct must address the characteristics of sound propagation in ducts, end reflections, and air turbulence. Investigations are being conducted to understand the extents to which …

Room Acoustics Computer Modeling: Study Of The Effect Of Source Directivity On Auralizations, Michelle C Vigeant, Lily M. Wang, Jens Holger Rindel

Durham School of Architectural Engineering and Construction: Faculty Publications

Auralizations are very useful in the design of performing arts spaces, where auralization is the process of rendering audible the sound field in a space, in such a way as to simulate the binaural listening experience at a given position in the modeled space. One of the fundamental modeling inputs to create auralizations is the source directivity. Standard methods involve inputting the measured source directivity, calculating the impulse response and convolving it with a single channel anechoic recording. An initial study was conducted using this method and the results showed significant differences in reverberation time and clarity index when using …

"Tilt-Up Building" And "Tilt-Up Wall Panel With Openings", John W. Lawson

Architectural Engineering

No abstract provided.

Ubc 97 And Aci 318-02 Code Comparison - Summary Report, Chukwuma Ekwueme, John Lawson, Mehran Pourzanjani, James S. Lai, Bob Lyon

Architectural Engineering

Introduction

Recognizing there have been questions on the differences between the alternate slender wall design procedures in 1997 UBC and in ACI 318-02, the SEAOSC Board authorized a Task Group to provide a comprehensive review of the two design procedures. The ACI procedure was adopted by IBC 2000 and subsequent code editions. As quoted in ACI 318R-02 Commentary Section R14.8, Section 14.8 is based on the corresponding requirements in the UBC and experimental research of the Test Report by SCCACI-SEAOSC.

This summary report includes review of source documents, code comparison, and background of the design provisions under UBC and under …

Effect Of Seeding Materials And Mixing Strength On Struvite Precipitation, Jun Wang, Joel Gerard Burken, Xiaoqi Zhang

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Struvite Precipitation Has Increasing Interest as a Technology for Removing and Recovering Phosphorus from Wastewater Streams. Many Chemical Factors Have Been Studied, Such as Optimum PH Values and Component-Ion Molar Ratios, Yet, Understanding of Physical Aspects is Lacking. Two Physical Parameters Were Tested: (1) Seeding Material Addition and (2) Mixing. Objectives Were to Evaluate Three Seeding Materials and to Optimize Mixing Conditions for Struvite-Crystal Precipitation, Growth, and Subsequent Sedimentation. Results Confirm that Mixing Strength and Proper Seeding Materials Increase Crystal Size and Improve Settleability. for Unseeded Solutions, Optimum Phosphorus Removal Was Achieved at a Mixing Strength of G = 76 …

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