Index Catalog // ScholarsArchive@OSU

An efficient high-performance computing based three-dimensional numerical wave basin model for the design of fluid-structure interaction experiments

Creator:: Nimmala, Seshu B.
Abstract:: Fluid-structure interaction (FSI) is an interesting and challenging interdisciplinary area comprised of fields such as engineering- fluids/structures/solids, computational science, and mathematics. FSI has several practical engineering applications such as the design of coastal infrastructure (such as bridges, levees) subjected to harsh environments from natural forces such as tsunamis, storm surges,...
Resource Type:: Dissertation
Full Text:: : _______________________________________________________ Solomon C. Yim Abstract: Fluid-structure interaction (FSI) is an interesting and

Improving the Performance of High Early Strength Concrete by Controlling Self-Desiccation and Mitigating Shrinkage

Creator:: Wilson, Cameron A.
Abstract:: High early strength (HES) concrete is becoming increasingly used to repair damaged concrete pavement sections. The use of HES concrete enables the repaired pavement to be opened to traffic within hours of placing the concrete. A common approach used for the rapid repair of concrete pavement consists of closing a...
Resource Type:: Masters Thesis
Full Text:: different age for varying w/c (using capacitive sensors

Characterization of Stormwater Runoff from a County Maintenance Facility and Evaluation of Temporal Performance of Bioswale in Its Treatment

Creator:: Gyawali, Kshitiz
Abstract:: In the last few decades, a lot of studies have been conducted to study about the quality of stormwater runoff from various sites and conditions. Highways, residential areas, and commercial sites are the focus of most of these studies while limited studies have done examination of stormwater from Maintenance and...
Resource Type:: Masters Thesis
Full Text:: . Jack Istok and Dr. Kellie Vache for serving on my committee. Last but not the least I would like to

Developing safety performance functions for 4-leg single-lane roundabouts based on Oregon data : a case study

Creator:: Zheng, Jianfei
Abstract:: Roundabouts have become an alternative for traditional intersections due to the safer operational performance. Previous research has provided crash modification factors (CMFs) as a criterion based on before-after studies as to evaluate the safety performance of roundabouts. One drawback of assessment based on crash modification factors, however, is that a...
Resource Type:: Masters Thesis
Full Text:: BRIEF SUMMARY OF INVENTORY DATA ..................... 72 10. APPENDIX C TRAFFIC VOLUME DATA

Engineering design and analysis of pipe ramming installations

Creator:: Meskele, Tadesse
Abstract:: The trenchless technology known as pipe ramming for construction of culverts and buried pipes under roadways or other infrastructure has gained significant popularity due to its cost-effectiveness and ability to alleviate surface disruptions associated with open-cut trenching. Although the experience with pipe ramming is increasing, there has been remarkably little...
Resource Type:: Dissertation
Full Text:: to my committee members, Dr. Jack Istok (Minor professor), Dr. Michael Olsen, Dr. Ben Mason, Dr

A Remotely Controlled Siphon System for Dynamic Water Storage Management

Creator:: Alnahit, Ali
Abstract:: This thesis presents an analytical, experimental and numerical study of the initiation of flows in a siphon for rapid and gradual openings of a downstream valve. Three initial water levels in the upstream tank and four final positions for the downstream valve were investigated. Two opening times of the downstream...
Resource Type:: Masters Thesis
Full Text:: inexpensive method to dynamically manage the storage of ponds and wetlands for flood control. c©Copyright

Owner's Role in Brownfield Remediation : The Brownfield Experts' Perspective

Creator:: Saberiyan, Amireh G.
Abstract:: Former industrial or commercial sites that have been left unused are typically referred to as brownfield sites, or simply, brownfields. Many communities have such properties that are abandoned, idle or underused. Despite public efforts to facilitate brownfields revitalization projects, the rate of remediation remains unexpectedly slow. Efforts to resolve this...
Resource Type:: Dissertation
Full Text:: . ........................................................................................................ 39 Figure 4 – Owner’s Cost-Benefit (C/B) Analysis Gross Model .............................. 58

An Exploration of Faculty Sensemaking in the Adoption of Course Social and Cognitive Engagement (CSCE) Surveys

Creator:: Ironside, Allyson J.
Abstract:: The work of engineering education researchers has resulted in the development of research-based instructional strategies (RBISs) aimed at providing educators with means to increase student learning. Research has shown that there is a disconnect between the development of RBISs and their use by educators. Means to make new practices more...
Resource Type:: Masters Thesis
Full Text:: provided throughout this process. I also want to thank Dr. Jack Istok, Dr. Kathleen Quardokus Fisher, and

Non-destructive determination of yield stress for in-situ gusset plates

Creator:: Pflaum, Therese Michelle
Abstract:: Failure of a gusset plate that caused the I-35W Bridge collapse in Minneapolis, MN resulted in mandated rating of connections by the Federal Highway Administration (FHWA). Rating connections requires material properties as an input. The material properties are generally reported on the available detailed drawings for bridges. However, some bridges...
Resource Type:: Masters Thesis
Full Text:: Plates Abstract approved: ______________________________________________________ Christopher C

Flexural anchorage performance and strengthening on negative moment regions using near-surface mounted retrofitting in reinforced concrete bridge girders

Creator:: Barker, Laura
Abstract:: Large numbers of reinforced concrete deck girder (RCDG) bridges were built during the highway infrastructure boom of the 1950's. The advent of standardized deformed steel reinforcing bars during this time allowed for straight bar terminations in flexural tension regions. Designers of the time terminated reinforcing bars where they were no...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Christopher C. Higgins Large numbers of reinforced concrete deck girder (RCDG

Application of Titanium Alloy Bars for Strengthening Reinforced Concrete Bridge Girders in Flexure

Creator:: Vavra, Eric
Abstract:: Structurally efficient and cost-effective solutions are needed to extend the service-life of deficient and aging highway infrastructure around the world. One critical need is to increase the flexural strength of older reinforced concrete (RC) structures to carry heavier and more frequent loads. Titanium alloy bars (TiAB) offer a new opportunity...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: _________________________________________________________ Christopher C. Higgins

Structural Effects of Hydraulic Loading and Drainage of Ecoroofs and Preliminary Consideration of Associated Design Loading Scenarios

Creator:: Thompson, Lucas E.
Abstract:: As ecoroofs have become more widespread throughout the U.S., it has become increasingly important to understand their structural behavior. The purpose of this research was to investigate the load effects exerted on a roof structure with an ecoroof during rain events and the subsequent drainage period, with the intention of...
Resource Type:: Capstone Project
Full Text:: : ______________________________________________________ Christopher C. Higgins As ecoroofs have become more widespread throughout the U.S., it has

Ultimate and serviceability limit state reliability-based axial capacity of deep foundations

Creator:: Reddy, Seth C.
Abstract:: Deep foundations are necessary for the construction of many structures, such as bridges and buildings, located in areas unsuitable for shallow foundations. Owing to the inherent variability of soil and the complex changes that occur in the soil adjacent to deep foundations as they are installed, the ability to accurately...
Resource Type:: Dissertation
Full Text:: DISSERTATION OF Seth C. Reddy for the degree of Doctor of Philosophy in Civil Engineering presented on

Seismic Retrofit of Square Reinforced Concrete Bridge Columns using Titanium Alloy Bars

Creator:: Shrestha, Sharoo
Abstract:: There are many aging bridges in service in the US and around the world that were not constructed to modern seismic design codes and standards. As a result, they are expected to perform poorly during intense earthquake ground shaking. Older reinforced concrete (RC) bridges, in particular, are often supported on...
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________________ Christopher C. Higgins

Direct Shear Interface Friction and Linear Motion Shaking Response of Ecoroofs

Creator:: Kilroy, Kimberly A.
Abstract:: Ecoroofs have become more prominent in recent years. However, there is currently no enforceable standard or building code for the design and construction of ecoroofs across the United States (Kraupa, 2014). Further research is needed to determine how ecoroofs respond to roof motion and to develop an appropriate design standard.The...
Resource Type:: Masters Thesis
Full Text:: : ________________________________________________ H. Benjamin Mason Christopher C. Higgins Ecoroofs have become more prominent in

Seismic assessment of unreinforced and retrofitted masonry buildings using Applied Element Method (AEM)

Creator:: Soti, Rajendra
Abstract:: A significant number of Unreinforced Masonry (URM) buildings exist in the Pacific Northwest region of the United States of America that is a region of high seismicity, which could be subjected to both crustal and subduction zone earthquakes. The catastrophic and brittle failures associated with URM buildings in the past...
Resource Type:: Dissertation

Climate Change Impacts to Estuarine Hydrodynamics: Tools, Methodologies, and Predictions

Creator:: Parker, Kai A.
Abstract:: Coastal communities in the U.S. Pacific Northwest (PNW) are rapidly engaging with the idea that hazards and environmental pressures are changing and may be characteristically different in the near future. This has led to a need for scientific knowledge and tools that can help coastal communities prepare and build resilience...
Resource Type:: Dissertation
Full Text:: seasons of the historic period. Plotted results are an average of all 10 jack-knife bins. All subplots

Shear reinforcement effects of discrete columns in liquefiable soils

Creator:: Rayamajhi, Deepak
Abstract:: Discrete columns, such as stone and soil-cement columns, are often used to improve the liquefaction resistance of loose sandy ground. In particular, stone columns are considered to increase resistance potential by densification, drainage, and reinforcement mechanisms. For silty soil, the shear stress reduction resulting from the reinforcing effect of stiffer...
Resource Type:: Dissertation
Full Text:: , Dr. Armin W. Stuedlein, Dr. Michael H. Scott, Dr. H. Benjamin Mason, and Dr. Michelle C. Odden (GCR

Investigation of x-ray computed tomography for Portland cement phase quantification

Creator:: Deboodt, Tyler J.
Abstract:: Cementitious materials are often characterized through the use of advanced analytical techniques to understand the macro-, micro-, and nano-scale properties, including phase formation during hydration, and subsequent potential deterioration mechanisms which can affect service life. A major limitation with using such analytical techniques to quantify solid phases in cementitious systems...
Resource Type:: Dissertation
Full Text:: laboratory synthesized calcium-silicate-hydrate (C-S-H), calcium hydroxide (CH), monosulfate (AFm), and

Optimizing the performance of gypsum wall board in wood frame shear walls

Creator:: Goodall, Scott I.
Abstract:: The overall goal of this project was to design a wood frame shear wall that could withstand greater displacement before damage occurred to the Gypsum Wall Board (GWB). More specifically, the objectives of the study were: (1) to evaluate damage to the GWB in alternative shear wall designs at 1%,...
Resource Type:: Masters Thesis
Full Text:: (Pseudotsuga menziesii) studs at 610 mm on center (o. c.). The seven shear wall designs tested included

ScholarsArchive@OSU

An efficient high-performance computing based three-dimensional numerical wave basin model for the design of fluid-structure interaction experiments

Improving the Performance of High Early Strength Concrete by Controlling Self-Desiccation and Mitigating Shrinkage

Characterization of Stormwater Runoff from a County Maintenance Facility and Evaluation of Temporal Performance of Bioswale in Its Treatment

Developing safety performance functions for 4-leg single-lane roundabouts based on Oregon data : a case study

Engineering design and analysis of pipe ramming installations

A Remotely Controlled Siphon System for Dynamic Water Storage Management

Owner's Role in Brownfield Remediation : The Brownfield Experts' Perspective

An Exploration of Faculty Sensemaking in the Adoption of Course Social and Cognitive Engagement (CSCE) Surveys

Non-destructive determination of yield stress for in-situ gusset plates

Flexural anchorage performance and strengthening on negative moment regions using near-surface mounted retrofitting in reinforced concrete bridge girders

Application of Titanium Alloy Bars for Strengthening Reinforced Concrete Bridge Girders in Flexure

Structural Effects of Hydraulic Loading and Drainage of Ecoroofs and Preliminary Consideration of Associated Design Loading Scenarios

Ultimate and serviceability limit state reliability-based axial capacity of deep foundations

Seismic Retrofit of Square Reinforced Concrete Bridge Columns using Titanium Alloy Bars

Direct Shear Interface Friction and Linear Motion Shaking Response of Ecoroofs

Seismic assessment of unreinforced and retrofitted masonry buildings using Applied Element Method (AEM)

Climate Change Impacts to Estuarine Hydrodynamics: Tools, Methodologies, and Predictions

Shear reinforcement effects of discrete columns in liquefiable soils

Investigation of x-ray computed tomography for Portland cement phase quantification

Optimizing the performance of gypsum wall board in wood frame shear walls

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