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Below-Grade Structural Flexibility Study For Seismic-Resistant, Self-Centering, Concentrically- Braced Frames, Derek A.J. Hauff 2016 The University Of Akron

Below-Grade Structural Flexibility Study For Seismic-Resistant, Self-Centering, Concentrically- Braced Frames, Derek A.J. Hauff

Honors Research Projects

Self-centering, concentrically braced frames (SC-CBFs) are seismic-resistant lateral-load resisting systems for buildings that increase the lateral drift capacity in comparison to conventional CBFs. Two different substructures were examined on a six-story and a ten-story building to see which below grade structure was more efficient and how the flexibility from the addition of a basement compares to previous research of SC-CBFs structures without basements.

The study was completed in phases: modeling of forces in SAP2000, sizing of structural members, coding of structure into the modeling program Open System for Earthquake Engineering Simulation (OpenSees), and comparison of the output data.

Substructure one ...


Bringing Football Back To Los Angeles, Gabriel G. Leiner Mr. 2015 Run At Space Productions

Bringing Football Back To Los Angeles, Gabriel G. Leiner Mr.

Gabriel Leiner

Identifying a suitable parcel for a large scale professional football stadium in the greater Los Angeles, CA area, which does not conflict with current uses, environmental protection codes, or airspace rights, and also has adequate transportation access and nearby populated neighborhoods.


Dispersion Modeling Of Nitrogen Dioxide (No2) And Fine Particulate Matter (Pm2.5) From Backup Generators At Data Centers In Prineville, Oregon, Brooke E. Harmon 2015 Portland State University

Dispersion Modeling Of Nitrogen Dioxide (No2) And Fine Particulate Matter (Pm2.5) From Backup Generators At Data Centers In Prineville, Oregon, Brooke E. Harmon

Civil and Environmental Engineering Master's Project Reports

As our society becomes increasingly dependent on digital communication (e.g., social media and email) and computerized storage (e.g., digitized medical records and government documents), tech giants such as Google, Facebook, and Apple are constructing and managing an increasing number of massive Internet data centers. These data centers house a network’s most critical systems and are vital to the continuity of daily operations. Requiring as much electricity as a medium size city, data centers rely on complex auxiliary power systems to prevent disruption to service. These backup systems consist of tens of multi-megawatt diesel-powered generators that release combustion ...


Improving Seismic Performance Of Concrete Buildings With Special Moment Frames Using Viscous Damper, Mohammad Javad Dehghan, Mostafa Soleymannejad 2015 Ayatollah Amoli Islamic Azad University, Amol, Iran

Improving Seismic Performance Of Concrete Buildings With Special Moment Frames Using Viscous Damper, Mohammad Javad Dehghan, Mostafa Soleymannejad

Innovative Research Publications IRP India

The present study attempted to investigate the effect of viscous damper on the performance of 10 and 16-story structures. Data modeling was done based on PERFORM 3D software and energy absorption amount was examined in different modes through viscous dampers. To investigate the effects of the so called dampers on the seismic behavior of the structures, the performance of special moment frames with and without viscous damper with the 20% to 30% Resistance against earthquake damages was considered. Also, hysteresis diagram was studied. The research findings revealed an appropriate effect of viscous dampers on decreasing seismic effects of earthquake such ...


Mudflow Disaster Damage Job Opportunity, Disrupt Social Life And Settlement, Thus Requiring Resettlement. Need To Understand Whether Physical Condition Of Resettlement Is In Accordance With Background And Housing Preference Of Victim, Due To Significant Differences Of Housing Design. Aspects Studied Were Characteristic Of Resettlement, Physical Condition Of House And Socio-Economic Mobility. Research Was Done Using Qualitative Method. Technique Of Data Collection Was Used Retrospective Interviews And Observation. This Research Result Indicates That Most Participants Experienced Conformity In House Physical Condition And Socioeconomic Mobility. Reason Of Unconformity Condition Is Housing Facility Which Has Not Meet Housing Standard., Gitanjali Biranga, S V. . Admane, S S. Shinde 2015 ICOER, Pune, Maharashtra, India

Mudflow Disaster Damage Job Opportunity, Disrupt Social Life And Settlement, Thus Requiring Resettlement. Need To Understand Whether Physical Condition Of Resettlement Is In Accordance With Background And Housing Preference Of Victim, Due To Significant Differences Of Housing Design. Aspects Studied Were Characteristic Of Resettlement, Physical Condition Of House And Socio-Economic Mobility. Research Was Done Using Qualitative Method. Technique Of Data Collection Was Used Retrospective Interviews And Observation. This Research Result Indicates That Most Participants Experienced Conformity In House Physical Condition And Socioeconomic Mobility. Reason Of Unconformity Condition Is Housing Facility Which Has Not Meet Housing Standard., Gitanjali Biranga, S V. . Admane, S S. Shinde

Innovative Research Publications IRP India

Energy efficiency has nowadays become one of the most challenging tasks and this has boosted research on fresh fields, such as Ambient Intelligence. Energy consumption in the housing and tertiary sectors is especially high in developed countries. There is a great potential for energy savings in these sectors. Energy conservation measures are developed for newly constructed buildings and for buildings under restoration. However, to achieve a significant diminution in energy consumption apart from the standard energy-efficiency methods, pioneering technologies should be implemented, including renewable energy. Now, buildings are increasingly anticipated to meet higher and more complex performance requirements. Among these ...


Resilience-Based Design Of Precast Steel-Concrete Composites For Railway Track Slabs, Sakdirat Kaewunruen, Dane WP Griffin, Olivia Mirza, Kenny Kwok 2015 University of Birmingham

Resilience-Based Design Of Precast Steel-Concrete Composites For Railway Track Slabs, Sakdirat Kaewunruen, Dane Wp Griffin, Olivia Mirza, Kenny Kwok

Sakdirat Kaewunruen

The relatively high turnover of timber sleepers (crossties in a plain track), bearers (skeleton ties in a turnout), and transoms (bridge cross beams) is responsible for producing greenhouse gas emissions 6 times greater than an equivalent reinforced concrete counterparts. This paper presents an innovative solution for the replacement of aging timber transoms installed on existing railway bridges along with the incorporation of a continuous walkway platform, which is proven to provide environmental, safety and financial benefits. Recent developments for alternative composite materials to replace timber components in railway infrastructure construction and maintenance demonstrate some compatibility issues with track stiffness as ...


Under Sleeper Pads: Field Investigation Of Their Role In Detrimental Impact Mitigation, Sakdirat Kaewunruen, Alex M. Remennikov 2015 University of Birmingham

Under Sleeper Pads: Field Investigation Of Their Role In Detrimental Impact Mitigation, Sakdirat Kaewunruen, Alex M. Remennikov

Sakdirat Kaewunruen

Under sleeper pads (USPs) are the component installed under the concrete sleepers generally to improve railway track resilience. Initial development in Europe, particularly in Austria, has encouraged the adoption of the component around the world. In practice, the component has commonly been used in certain applications, mainly to moderate track stiffness in special locations such as turnouts, crossings, and level crossing. In heavy haul operation, the heavier wagons result in sturdier bogie structures, higher unsprung mass, and then higher level of wheel-rail interaction forces. Accordingly, the application of USPs to mitigate detrimental impact load consequence on track structure is presented ...


Design Of Holes And Web Openings In Railway Prestressed Concrete Sleepers, Erosha Kahawatta Gamage, Sakdirat Kaewunruen, Alex M. Remennikov 2015 University of Birmingham

Design Of Holes And Web Openings In Railway Prestressed Concrete Sleepers, Erosha Kahawatta Gamage, Sakdirat Kaewunruen, Alex M. Remennikov

Sakdirat Kaewunruen

As the crosstie beam in railway track systems, the prestressed concrete sleepers (or railroad ties) are principally designed in order to carry wheel loads from the rails to the ground. Their design takes into account static and dynamic loading conditions. It is evident that prestressed concrete has played a significant role as to maintain the high endurance of the sleepers under low to moderate repeated impact loads. In spite of the most common use of the prestressed concrete sleepers in railway tracks, there have always been many demands from rail engineers to improve serviceability and functionality of concrete sleepers. For ...


Obliczenia Rozprzestrzeniania Się Pyłu Drobnego W Powietrzu Atmosferycznym Z Wykorzystaniem Dyfuzyjnych Modeli Gaussa, Robert Oleniacz, Mateusz Rzeszutek 2015 AGH University o Science and Technology

Obliczenia Rozprzestrzeniania Się Pyłu Drobnego W Powietrzu Atmosferycznym Z Wykorzystaniem Dyfuzyjnych Modeli Gaussa, Robert Oleniacz, Mateusz Rzeszutek

Robert Oleniacz

The chapter presents a comparison of results of modelling concentrations of fine dust (suspended dust PM10) in the air with the use of two diffusion models: the Gaussian plume model (used commonly in Poland), and the Gaussian puff model CALPUFF (used significantly less frequently). It indicates discrepancies in obtained results of calculations for point emitters taking into consideration three dimensional options (with the following heights: 20, 40 and 60 m and diameters of respectively: 1.0, 1.5 and 2.0 m). For particular variants, errors were visualised, resulting from use of the simple Gaussian plume model in place of ...


Using A High Altitude Balloon Platform To Observe And Measure Seasonal Ozone Flux Over Agricultural Landscapes, Cody Sabo 2015 DePaul University

Using A High Altitude Balloon Platform To Observe And Measure Seasonal Ozone Flux Over Agricultural Landscapes, Cody Sabo

2015 Academic High Altitude Conference

The concentration of greenhouse gasses (GHGs) in the atmosphere has continued to rise since the industrial era. This issue has had a multitude of negative impacts on all living things. Among the major GHGs are carbon dioxide, methane, nitrous oxide, and ozone. Ozone is of particular importance because it not only has the ability to trap heat in the atmosphere, but it also directly impacts organisms by causing harm to both plants and humans. The damage that ozone causes to plants is most closely linked to ozone uptake rather than ozone concentration. So, measuring ozone uptake is becoming critical for ...


Estimation Of Optimal Productivity In Labor-Intensive Construction Operations, Krishna Prasad Kisi 2015 University of Nebraska-Lincoln

Estimation Of Optimal Productivity In Labor-Intensive Construction Operations, Krishna Prasad Kisi

Construction Systems -- Dissertations & Theses

In an attempt to evaluate the efficiency of labor-intensive construction operations, project managers typically compare actual with historical productivity for equivalent operations. However, this approach toward examining productivity only provides a relative benchmark for efficiency and may lead to the characterization of operations as objectively efficient when in reality such operations might simply be comparably efficient.

Optimal productivity is the highest sustainable productivity achievable under good management and typical field conditions. Optimal productivity is useful in the determination of the absolute efficiency of construction operations because an accurate estimate of optimal labor productivity allows for the comparison of actual vs ...


Problem Tree & Italian Transport Companies, Sajjad Khaksari 2015 Politecnico di Torino

Problem Tree & Italian Transport Companies, Sajjad Khaksari

SAJJAD KHAKSARI

Slides of Report: Production System Analysis & Italian Transport Companies; A briefly endeavor to modeling, 3th edition; Problem Tree; Production Functions (PF's); Organization Chart; Information Pattern; Standard Time; Make-span (MS); Modeling; DM's; Work Sequence; Report; Table of Agents; Table of Resources; Production System Analysis & Italian Transport Companies

Course of Prof. Agostino Villa; Politecnico di Torino, Student: Sajjad Khaksari; June 11, 2015;


Agenda: Innovations In Managing Western Water: New Approaches For Balancing Environmental, Social, And Economic Outcomes, University of Colorado Boulder. Getches-Wilkinson Center for Natural Resources, Energy, and the Environment 2015 University of Colorado Law School

Agenda: Innovations In Managing Western Water: New Approaches For Balancing Environmental, Social, And Economic Outcomes, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment

Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)

Many aspects of western water allocation and management are the product of independent and uncoordinated actions, several occurring a century or more ago. However, in this modern era of water scarcity, it is increasingly acknowledged that more coordinated and deliberate decision-making is necessary for effectively balancing environmental, social, and economic objectives. In recent years, a variety of forums, processes, and tools have emerged to better manage the connections between regions, sectors, and publics linked by shared water systems. In this event, we explore the cutting edge efforts, the latest points of contention, and the opportunities for further progress.


Sustainable Development For People Or Profit?, Eric RR Weaver 2015 University of South Florida

Sustainable Development For People Or Profit?, Eric Rr Weaver

Suburban Sustainability

As Earth’s populations grow, will key planetary systems be pushed over the “tipping point” beyond Earth’s carrying capacity for sustaining human life? There is a strong body of literature developing the concept of Planetary Boundaries to help identify the limits for maintaining the Earth’s environmental stability. It is presumed that exceeding the Planetary Boundaries will result in an environmental tipping point, shifting the earth into a new environmental equilibrium detrimental to life as we know it. Research shows industrial agriculture is a major force pressing the environment to, and beyond, these limits. This review of top tier ...


Study Of Reinforced Concrete Beam-Column Joint, Innovative Research Publications IRP India, Prakash Panjwani, S.K. DUBEY 2015 Innovative Research Publications

Study Of Reinforced Concrete Beam-Column Joint, Innovative Research Publications Irp India, Prakash Panjwani, S.K. Dubey

Innovative Research Publications IRP India

The beam column joint is the crucial zone in a reinforced concrete moment resisting frame. It is subjected to large forces during severe ground shaking and its behaviour has a significant influence on the response of the structure. The assumption of rigid joint fails to consider the effects of high shear forces developed within the joint. The shear failure is always brittle in nature which is not an acceptable structural performance especially in seismic conditions. This paper presents a review of the postulated theories associated with the behaviour of joints. Understanding the joint behaviour is essential in exercising proper judgments ...


Review On Stabilization Of Soil Using Coir Fiber, Innovative Research Publications IRP India, Stuti Maurya, .A.K. Sharma, P.K. Jain, Rakesh Kumar 2015 Innovative Research Publications

Review On Stabilization Of Soil Using Coir Fiber, Innovative Research Publications Irp India, Stuti Maurya, .A.K. Sharma, P.K. Jain, Rakesh Kumar

Innovative Research Publications IRP India

Soil stabilization has become a major issue in construction engineering and the researches regarding the effectiveness of using natural wastes are rapidly increasing. The use of natural fibers to reinforce soil is an old and ancient idea. Consequently, randomly distributed fiber reinforced soils have recently attracted increasing attention in geotechnical engineering. The main aim of this paper, therefore, is to review the, benefits, properties and applications of coir fiber in soil reinforcement through reference to published scientific data


Agricultural Water Management In The Sevier River Basin, Utah: A Multidisciplinary Approach, Daeha Kim 2015 Utah State University

Agricultural Water Management In The Sevier River Basin, Utah: A Multidisciplinary Approach, Daeha Kim

All Graduate Theses and Dissertations

The Sevier River Basin situated in south central Utah is characterized by its semiarid climate, snowmelt-driven runoff, and high dependency on agricultural economy. High evapotranspiration and low precipitation make agricultural production challenging, but naturally stored water in the snowpack in the mountains alleviates water stresses during high water demand seasons. The snowmelt-driven river flow along the main channel is highly exploited for irrigation for farms near the Sevier River. Reservoir operations and river diversions result in heavily regulated flows from the upper to the lower basins. The return flows of over-irrigated water in the upper basin increase salinity of surface ...


Effects Of Sulfidation And Natural Organic Matter On The Deposition Of Silver Nanoparticles, Yunqui Chen 2015 University of Massachusetts - Amherst

Effects Of Sulfidation And Natural Organic Matter On The Deposition Of Silver Nanoparticles, Yunqui Chen

Environmental & Water Resources Engineering Masters Projects

No abstract provided.


Low-Cost Rural Surface Alternatives: Demonstration Project - Tech Transfer Summary, Cheng Li, Jeramy C. Ashlock, David White, Pavana Vennapusa 2015 Iowa State University

Low-Cost Rural Surface Alternatives: Demonstration Project - Tech Transfer Summary, Cheng Li, Jeramy C. Ashlock, David White, Pavana Vennapusa

Jeramy C. Ashlock

A field demonstration project was conducted in Hamilton County, Iowa to compare the relative performance, durability, and costs of several stabilization methods for preventing or mitigating freeze-thaw damage to granular surfaced roads.


Low-Cost Rural Surface Alternatives: Demonstration Project, Cheng Li, Jeramy C. Ashlock, David White, Pavana Vennapusa 2015 Iowa State University

Low-Cost Rural Surface Alternatives: Demonstration Project, Cheng Li, Jeramy C. Ashlock, David White, Pavana Vennapusa

Jeramy C. Ashlock

The goals of this project were to implement several stabilization methods for preventing or mitigating freeze-thaw damage to granular surfaced roads and identify the most effective and economical methods for the soil and climate conditions of Iowa. Several methods and technologies identified as potentially suitable for Iowa were selected from an extensive analysis of existing literature provided with Iowa Highway Research Board (IHRB) Project TR-632.

Using the selected methods, demonstration sections were constructed in Hamilton County on a heavily traveled two-mile section of granular surfaced road that required frequent maintenance during previous thawing periods. Construction procedures and costs of the ...


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