Indygo Downtown Transit Center - Transforming Indianapolis, 2015 URS Corporation
Indygo Downtown Transit Center - Transforming Indianapolis, Ben Smith, Steve Robinson, Joe Fischer
Purdue Road School
The new IndyGo Downtown Transit Center will transform transit in downtown Indianapolis and offers lessons in transit planning, traffic planning, intermodal connectivity, public engagement, and pedestrian access. This presentation will give an overview of the facility and then focus on attributes of the facility and of the design process that might offer useful lessons to other transit projects, including those of a smaller scale
Green School, Designing For Comfort And Beyond…, 2015 Iowa State University
Green School, Designing For Comfort And Beyond…, Andrea S. Wheeler, Naghmeh Pak, Evan Jeanblanc
Andrea S. Wheeler
Comfort is defined through human senses; sight, hearing, smell, touch, and taste. Each sense can lead to a greater or lesser degree of comfort. However, children experience comfort differently than adults. They experience spaces differently and have different knowledge about the performance of a building than adult users; they can also have a perspective on design quality unlike that of the architect. School is a designed environment that a child lives in for over 6 hours a day; it is it is thus argued simply a matter of a child’s right to be consulted about his or her day-to-day ...
Field Performance Of A Conventional Combine Harvester In Harvesting Bg-300 Paddy Variety In Batticaloa, Srilanka, 2015 Innovative Research Publications
Field Performance Of A Conventional Combine Harvester In Harvesting Bg-300 Paddy Variety In Batticaloa, Srilanka, Innovative Research Publications Irp India, R. Bawatharani, D.N. Jayatissa, D.A.N. Dharmasena, M.H.M.A. Bandara
Innovative Research Publications IRP India
This study was performed to determine the performance of a conventional combine harvester in two fields cultivated with BG-300 rice variety in SriLanka. The performance of the combine was affected by the operational condition as wells as the crop conditions in both fields
Determining Thresholds Of Annoyance To Tones In Noise, 2014 University of Nebraska-Lincoln
Determining Thresholds Of Annoyance To Tones In Noise, Jennifer Marie Francis
Architectural Engineering -- Dissertations and Student Research
Building services equipment often produce noise with prominent tones that can lead to complaints from occupants in the built environment. Previous studies have investigated human perception to tones in noise but it is still unclear at what threshold of prominence these tones lead to human annoyance. The goal of this research is to apply two different methods towards defining thresholds of annoyance to two tonal frequencies: 125 Hz and 500 Hz. In Method I – Direct Assessment with Task, subjects are exposed to 10 minutes of broadband noise with a tonal frequency set at a certain level of prominence while completing ...
Designing Acoustics For Linguistically Diverse Classrooms: Effects Of Background Noise, Reverberation And Talker Foreign Accent On Speech Comprehension By Native And Non-Native English-Speaking Listeners, 2014 Durham School of Architectural Engineering and Construction, University of Nebraska
Designing Acoustics For Linguistically Diverse Classrooms: Effects Of Background Noise, Reverberation And Talker Foreign Accent On Speech Comprehension By Native And Non-Native English-Speaking Listeners, Z. Ellen Peng
Architectural Engineering -- Dissertations and Student Research
The current classroom acoustics standard (ANSI S12.60-2010) recommends core learning spaces not to exceed background noise level (BNL) of 35 dBA and reverberation time (RT) of 0.6 second, based on speech intelligibility performance mainly by the native English-speaking population. Existing literature has not correlated these recommended values well with student learning outcomes. With a growing population of non-native English speakers in American classrooms, the special needs for perceiving degraded speech among non-native listeners, either due to realistic room acoustics or talker foreign accent, have not been addressed in the current standard. This research seeks to investigate the effects ...
Thickening: A 21st Century Approach For Resilience In Infrastructure, 2014 Syracuse University
Thickening: A 21st Century Approach For Resilience In Infrastructure, Marco Antonio Ravini
Architecture Thesis Prep
Infrastructure should be designed for higher RESILIENCE, not permanence. Rather than over-engineer to resist the inevitable failure of individual components, the next generation of public infrastructure needs to exceed its technical specifications and seek opportunistic hybridity between systems. In doing so, new possibilities for multi-layered use/outputs emerge which contribute to a more productive and resilient infrastructural lifespan.
Wheeler, Andrea (2014) “The Sustainable School: Effective And Energy Efficient Ventilation In The Classroom, And The Question Of Educational Performance And Wellbeing” World Sustainable Building Conference, 28th – 30th October, Barcelona., 2014 Iowa State University
Wheeler, Andrea (2014) “The Sustainable School: Effective And Energy Efficient Ventilation In The Classroom, And The Question Of Educational Performance And Wellbeing” World Sustainable Building Conference, 28th – 30th October, Barcelona., Andrea S. Wheeler
Andrea S. Wheeler
Abstract: Within the context of designing a sustainable school, technical studies that address questions of air quality, educational performance and wellbeing challenge the trend toward providing for natural ventilation. This paper critically examines research literature that suggests that temperature and air quality are, in a large proportion of classrooms, so poor as to have a negative effect on children’s health and educational performance. Evidence in support of mechanical systems that control air quality contradicts a recent increase in natural ventilation, proposed as a means to conserve energy consumption in schools. Indoor Air Quality (IAQ) is generally not stressed, or ...
Ogden College News, 2014 Ogden College of Science & Engineering
Ogden College News, Cheryl Stevens, Dean
Ogden College of Science & Engineering Publications
No abstract provided.
Wind-Induced Pressures In Air Permeable, Double-Layer Roof Systems In Regions Of Separated Flow, 2014 The University of Western Ontario
Wind-Induced Pressures In Air Permeable, Double-Layer Roof Systems In Regions Of Separated Flow, Jeong Hee Oh
University of Western Ontario - Electronic Thesis and Dissertation Repository
This thesis is concerned with the wind-induced pressure distribution acting on air permeable, double-layer roof systems placed on low-rise buildings. Because of the pressure transmission into the cavity between layers, the pressure difference in the double-layer systems differs significantly from that in a single layer. The interior pressures (in the cavity between layers) are highly correlated with external pressures at the openings on the external surface of the outer layer and thereby, the net wind load for the design of the outer layer is considerably reduced by the pressure equalization between the external and internal surfaces of the outer layer ...
Recapturing Urban Space: An Inhabited Bridge In Nashville, Tennessee, 2014 University of Tennessee - Knoxville
Recapturing Urban Space: An Inhabited Bridge In Nashville, Tennessee, Benjamin Smith Culbertson
Density. A word used in the description of many large cities. It is how so many people can fit into a relatively compact area and still operate efficiently. Density, used as a tool to craft cities can generate spectacular moments. Several centuries ago, one of these moments was the inhabited bridge. It provided the continuity of the urban fabric by linking areas that were separated by rivers and other natural boundaries. They were nodes in the city that housed commerce, social activity, and residences. However, as cities grew to be more globally connected hubs, the needs of the pedestrian fell ...
Relationship Between The Collapse Fragility And Collapse Risk In Existing Buildings In Regions Of High And Moderate Seismicity, 2014 University of Colorado Boulder
Relationship Between The Collapse Fragility And Collapse Risk In Existing Buildings In Regions Of High And Moderate Seismicity, David John Bretl
Civil Engineering Graduate Theses & Dissertations
This thesis aims to identify a relationship between the probability of collapse of existing buildings subjected to MCE/MCER shaking and the mean number of collapses per expected building lifetime (τ) in regions of high and moderate seismicity. It encompasses 23 highly seismic locations and 21 moderately seismic locations spread across the United States and considers 35 different building types at each location. The study uses a risk integral to calculate an annual rate of collapse to use for comparison with collapse probabilities, and then uses the scoring system from FEMA 154 as a methodology to consistently compare the ...
Many Objective Analysis To Optimize Pumping And Releases In A Multi-Reservoir Water Supply Network, 2014 University of Colorado Boulder
Many Objective Analysis To Optimize Pumping And Releases In A Multi-Reservoir Water Supply Network, Rebecca Smith
Civil Engineering Graduate Theses & Dissertations
Past research has proven the utility of using multiobjective evolutionary algorithms (MOEAs) to optimize complex water management problems with many conflicting performance objectives. This study expands on the multiobjective optimization methodology by embedding a sophisticated RiverWare model in the algorithm search loop. The main challenges beyond linking the algorithm and model were due to the model's long simulation time and the complexity of the model. Addressing the simulation time necessitated several creative approaches to ensure efficient but thorough algorithm search and intelligent representation of hydrologic variability. Successfully addressing these issues confirms that advanced detailed operations models for civil infrastructure ...
Examining The Applicability Of Design Methods For Large Panelized All-Wood Roof Diaphragms Under Seismic Loading, W. Pang, S. Pant, C. Ni, John W. Lawson
The use of flexible roof diaphragms is very common in the United States, both for residential buildings and large-scale commercial buildings. Due to its simplicity, the traditional diaphragm design method is commonly used in diaphragm design, in particular for the design of diaphragms with relatively small dimensions. The traditional diaphragm design method assumes the axial chord forces developed in framing members under in-plane loading are carried only by the perimeter elements. The traditional diaphragm design method has always been thought to be a conservative design method, especially when applied to large diaphragms. In recent years, the engineering community began to ...
Numerical Framework For Seismic Collapse Assessment Of Rigid Wall-Flexible Diaphragm Structures, M. Koliou, A. Filiatrault, D.J. Kelly, John W. Lawson
This study focuses on the development of a two dimensional (2D) simplified numerical framework of rigid wall-flexible diaphragm (RWFD) structures that can be used to validate seismic design approaches. This type of low-rise industrial buildings, which is widely used in North America, incorporates rigid in-plane concrete or masonry walls and flexible in-plane wood, steel or “hybrid” roof diaphragms. The numerical modeling is detailed enough to capture the nonlinear seismic response of RWFD buildings, but simplified enough to efficiently conduct a large number of nonlinear time-history dynamic analyses. The 2D numerical modeling framework is based on a three step sub-structuring approach ...
Development Of Seismic Design Methodologies For Rigid Wall-Flexible Diaphragm Structures, 2014 California Polytechnic State University, San Luis Obispo
Development Of Seismic Design Methodologies For Rigid Wall-Flexible Diaphragm Structures, John W. Lawson, D. J. Kelly, M. Koliou, A. Filiatrault
Evidence indicates that the dynamic behavior of Rigid Wall – Flexible Diaphragm (RWFD) structures is dominated by the diaphragm’s response instead of the walls’ response, and this is a significant departure from the underlying assumptions of the widely used equivalent lateral force method in current building codes. RWFD buildings are common in North America and other parts of the world, and incorporate rigid in-plane concrete or masonry walls and flexible in-plane wood or steel roof diaphragms. With the use of a numerical computer modeling framework developed specifically for this type of building, this study sets out to investigate the seismic ...
Coastal Defenses, U.S., 2014 Purdue University
Coastal Defenses, U.S., Bert Chapman
Libraries Faculty and Staff Scholarship and Research
Provides an overview of U.S. military coastal defenses during the period up to and including the War 1812.
An Emerging Vocabulary: Architecture Of Performance, 2014 University of Kentucky
An Emerging Vocabulary: Architecture Of Performance, Jeremy H. Stock
Re-chartered at the University of Kentucky in 2005, the Triangle Fraternity – a brotherhood of students studying Architecture, Engineering, and Sciences – now seeks to establish a visible presence by building a new fraternity house on-campus. To enable this investigation, professors Gregory Luhan, Peyman Jahed, and Bruce Walcott developed a design + energy studio experience that provided a framework for an integrated design team to use a systems-thinking approach to generate a range of scalable, net-zero energy prototypes. These prototypes can be applied in a variety of contexts and have the potential to address larger issues, such as energy efficiency and environmental stewardship ...
Validation Of A Fault-Modeling Equipped Vapor Compression System Model Using A Fault Detection And Diagnostics Evaluation Tool, 2014 University of Nebraska-Lincoln
Validation Of A Fault-Modeling Equipped Vapor Compression System Model Using A Fault Detection And Diagnostics Evaluation Tool, David P. Yuill, Howard Cheung, James E. Braun
A methodology for evaluating the performance of fault detection and diagnostics (FDD) tools for unitary air- conditioners has been developed (Yuill and Braun 2013). The methodology uses laboratory measurements of systems with and without faults to test FDD tools’ effectiveness. A gray box modeling method capable of modeling systems with faults was developed by Cheung and Braun (2013a and 2013b) to provide input data, as an alternative to using laboratory data that had been collected. The simulation method was validated by direct comparison with experimental data, but a comparison of FDD evaluation results provides a more direct and useful validation ...
Using K’Nex To Teach Large Scale Structures To Architects And Constructionstudents, 2014 California Polytechnic State University - San Luis Obispo
Using K’Nex To Teach Large Scale Structures To Architects And Constructionstudents, Allen C. Estes, Craig Baltimore
The College of Architecture and Environmental Design at California Polytechnic State University in San Luis Obispo (Cal Poly SLO) is the only college in the nation that includes architecture (ARCH), architectural engineering (ARCE) and construction management (CM) programs in the same college. Given the unique mix of disciplines and the emphasis on interdisciplinary collaboration, the ARCH and CM students take a five-course structural engineering sequence from the ARCE department. A challenge of these courses is to maintain some degree of computational rigor while offering a broader perspective that will benefit the ARCH and CM students. This paper reports on one ...
Structural Damage Detection Utilizing Experimental Mode Shapes, 2014 Cal Poly, SLO
Structural Damage Detection Utilizing Experimental Mode Shapes, Evan Jamison Gerbo
Master's Theses and Project Reports
A method of locating structural damage is developed and tested to aid in the evaluation of structural health. This method will help minimize the cost of structural inspection and repair by informing engineers of where damage, due a seismic event, has occurred before the removal of finishes for visual inspection. This thesis begins to answer the question “can structural damage be detected solely through analysis of experimentally measured mode shapes?”
The work encompasses construction of a test structure, with three braces that can be repeatedly engaged or dis-engaged, thus allowing for testing of a variety of braced configurations. For this ...