Civil and Environmental Engineering Commons^™

Assessing Seasonal Flow Dynamics At A Lagoon Saltwater–Freshwater Interface Using A Dual Tracer Approach, S. Müller, S. Jessen, C. Duque, É. Sebök, Bethany T. Neilson, P. Engesgaard

Civil and Environmental Engineering Faculty Publications

Study region: Eastern shore of Ringkøbing Fjord, a coastal lagoon at the west coast of Denmark

Study focus: A dual tracer approach based on salinity and δ¹⁸O is used to assess seasonal dynamics at the saltwater-freshwater interface of a coastal lagoon. At the site, salinity is prone to vary on a sub-seasonal or daily frequency due to riverine freshwater inputs to the lagoon. In contrast, δ¹⁸O compositions of end-members only vary seasonally.

New hydrological insights: The dual tracer approach shows to be valuable in coastal settings where end-member concentrations vary substantially over the seasons and hence, …

Advanced Paving Materials And Technologies, Zhanping You, Qingli Dai, Feipeng Xiao

Michigan Tech Publications, Part 1

No abstract provided.

Transportation Impacts Of Affordable Housing: Informing Development Review With Travel Behavior Analysis, Amanda Howell

PSU Transportation Seminars

Planning for affordable housing is challenged by development policies that often do not differentiate between the travel patterns of residents of market-rate housing and those living in affordable units. The development review process generally requires an evaluation of the anticipated additional transportation demand that new development places on the system and an assessment of fees or improvements to mitigate these impacts.

However, industry standard guidelines for assessment of travel demand outlined within the Institute of Transportation Engineers (ITE) Trip Generation Handbook have been focused solely on vehicle trip rates for these traffic impact analyses. Given the public goals of providing …

Management Of An Urban Stormwater System Using Projected Future Scenarios Of Climate Models: A Watershed-Based Modeling Approach, Ranjeet Thakali, Ajay Kalra, Sajjad Ahmad, Kamal Qaiser

Civil and Environmental Engineering and Construction Faculty Research

Anticipating a proper management needs for urban stormwater due to climate change is becoming a critical concern to water resources managers. In an effort to identify best management practices and understand the probable future climate scenarios, this study used high-resolution climate model data in conjunction with advanced statistical methods and computer simulation. Climate model data from the North American Regional Climate Change Assessment Program (NARCCAP) were used to calculate the design storm depths for the Gowan Watershed of Las Vegas Valley, Nevada. The Storm Water Management Model (SWMM), developed by the Environmental Protection Agency (EPA), was used for hydrological modeling. …

Multi-Point Vibration Measurement And Mode Magnification Of Civil Structures Using Video-Based Motion Processing, Zhexiong Shang, Zhigang Shen

Department of Construction Engineering and Management: Faculty Publications

Image-based vibration measurement has gained increased attentions in civil and construction communities. A recent video-based motion magnification method was developed to measure and visualize small structure motions. This new approach presents a potential for low-cost vibration measurement and mode shape identification. Pilot studies using this approach on simple rigid body structures were reported. Its validity on complex outdoor structures has not been investigated. In this study, a non-contact video-based approach for multi-point vibration measurement and mode magnification is introduced. The proposed approach can output a full-field vibration map that increases the efficiency of the current structural health monitoring (SHM) practice. …

Over-Height Vehicle Impact Reduction On Bridges: A Case Study, Marc Alexander Hoffmann

LSU Master's Theses

Over-height vehicle collisions are a growing concern as commercial vehicles, as well as their cargo, become taller. Engineers recognize the dangers of over-weight vehicles traveling on our bridges and are able to adequately predict the behavior of a bridge subjected to increased live loads. However, bridges are becoming more vulnerable to collisions from over-height vehicles. Not only are the time and place of over-height vehicle collisions difficult to predict, but also the exact response of the bridge subjected to the lateral impact force is difficult to predict.

Most states use early warning detection systems to alert over-height vehicles and/or crash …

Mechanical And Physical Properties Of Fluorogypsum-Cement-Fly Ash Blends For Artificial Reef And Coastal Protection Structures, Yasser Bigdeli

LSU Doctoral Dissertations

The State of Louisiana faces severe soil erosion along its coastlines. Coastal protection structures most commonly are made of limestone and concrete. However, in Louisiana, these materials are not widely available, which makes it significantly expensive to protect the coastlines and marine life. This study proposes to use locally available materials that have lower cost and lower density than limestone and concrete to reduce the economic burden of protecting and enhancing coastlines.

This study presents an extensive investigation of strength and durability properties of a low-cost concrete-like composite material made of pH-adjusted fluorogypsum (FG), class C fly ash (FA), and …

Test Standard For Determining The Rotational-Lateral Stiffness Of Beam-To-Panel Assemblies, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Effective Area Of Cold-Formed Steel Compression Members, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

North American Standard For Cold-Formed Steel Framing -- Product Data, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Strength And Deformation Characteristics Of Cold-Formed Steel Connections, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Flexural Strength Reduction Factor Of Purlins Supporting A Standing Seam Roof System, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Strength Of A Roof Panel-To-Purlin-To-Anchorage Device Connection, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Web Crippling Strength Of Cold-Formed Steel Flexural Members, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Distortional Buckling Strength Of Cold-Formed Steel Hat-Shaped Compression Members, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Strength And Deformation Behavior Of Joist Connectors Attached To Cold-Formed Steel Structural Framing, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Strength And Deformation Behavior Of Hold-Downs Attached To Cold-Formed Steel Structural Framing, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Load-Carrying Strength Of Panels And Anchor-To-Panel Attachments For Roof Or Siding Systems Tested In Accordance With Astm E1592, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Flexural Strength Of Cold-Formed Steel Hat-Shaped Members, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Strength And Stiffness Of Cold-Formed Steel Diaphragms By The Cantilever Test Method, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Uniform And Local Ductility Of Carbon And Low-Alloy Steels, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Test Standard For Determining The Tensile And Shear Strengths Of Steel Screws, 2017 Edition, American Iron And Steel Institute

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

A Methodological Framework For Quantifying Impacts Of Truck Traffic On Regional Network With Implications To Transport Policy, Chaitanya Narendra Pathak

Dissertations

Increased global trade has promoted the importance of shipping industry and the introduction of mega-ships has created an opportunity to be more cost-effective. Because of this, the expected change in freight transportation influences the operating regimes and schedules at the port terminals. Trucks being the predominant mode of transportation used to carry the freight transport, there is a growing concern about the impact of trucks in the region. The problems are further expected to grow as the improvements to resolve them are hindered by funding shortfalls. Public agencies are therefore involved in developing comprehensive state freight plans that outline immediate …

Cob: A Sustainable Building Material, Daniel Eberhard, Joseph Novara, Brandon Popovec

Civil, Environmental and Sustainable Engineering Senior Theses

Cob is a sustainable building material used in residential applications as a replacement for typical one-story timber or concrete structures. Cob heavily lacks the testing and modern research required for permissible construction under current residential building codes. Further tests involving earthquake and lateral loading are required to implement cob into the California Residential Building Code. In this report, four cob walls, each with different reinforcement mechanisms, were tested to observe their failure modes and find the maximum deflection and load of each wall. Through this testing, it was determined that steel reinforcement within cob walls can provide more ductile behavior …

Analysis Of Structural Components During Cyclical Loading Of Steel Reinforced Earthbag Construction, Noah Strong, Emil Huebner, Ethan Jensen

Civil, Environmental and Sustainable Engineering Senior Theses

Testing for structural properties of earthbag construction was completed using a pilot method for coupling reinforcing steel in mid-height concrete boxes in earthbag walls. Benefits of earthbag wall construction include use of alternative building materials, frugal cost, and ease of construction. The goal of the project was to establish predictable structural standards for eventual inclusion in residential building code(s). Earthbag walls were designed for a 1.5:1 aspect ratio standing at four feet (4’) wide and six feet (6’) tall. Two walls with an innovative concrete coupler connection were constructed over the course of five days and left to dry for …

Climate Smart Farming For Women In East Africa, Lauren Oliver, Cristina Whitworth

Civil, Environmental and Sustainable Engineering Senior Theses

According to the United Nations Food and Agriculture Organization, 60% of East Africans live as subsistence farmers. This population is particularly vulnerable to the effects of climate change which has increased the duration and intensity of droughts and floods. Droughts and floods can destroy an entire season’s harvest, causing sustenance farmers and their families to struggle for food until the next season. In an attempt to mitigate the severe effects of climate change on these farmers and reduce food insecurity in East Africa, the team has designed a small-scale aquaponic farming system that simultaneously grows fish and vegetables. This system …

Design Of A Green Community Located At West Santa Clara Street And Delmas Avenue In San Jose, Steven Ashe, Emelia Hamilton

Civil, Environmental and Sustainable Engineering Senior Theses

A mixed-use land development and transportation system was designed for a nine (9) acre plot of land near downtown San Jose. The goal of this project was to design a safe, green, and attractive community for residents to live, interact with their neighbors, and enjoy the amenities within the community. The community includes an apartment complex, park, playground, picnic area, retail stores, and offices. The scope of work and analysis for this project included drainage design, earthwork calculations, street design, and traffic analysis. Low impact designs were used to reduce the amount of waste, pollution, and runoff for the project. …

Evaluating The Applicability Of Modflow2005 Plus Mt3d-Usgs: Borden Case Study, Linley Mescher

Civil and Environmental Engineering Master's Project Reports

Groundwater is essential to communities around the world for drinking, industrial, and agricultural purposes. MODFLOW is a modeling program that uses the three-dimensional continuity equation in a finite difference approach to simulate groundwater flow in an aquifer. MT3D-USGS is a MODFLOW package that simulates contaminant transport. This study used MODFLOW2005 with MT3D-USGS to build a model simulating contaminant transport in Borden, Ontario. A study conducted at the Borden site in 1982 injected a solution of eight solutes to test the transport of contaminants over three years. Initial simulations showed similar transport characteristics for chloride and carbon tetrachloride as compared to …

Simulation Of The Behavior Of Corrosion Damaged Reinforced Concrete Beams With/Without Cfrp Retrofit, Masoud Zabihi-Samani, Mohsenali Shayanfar, Amir Safiey, Amir Najari

Publications

Harsh environmental conditions along with aggressive chemical agents are known as one of the main reasons behind damages observed in reinforced concrete members. Corrosion of reinforcement worldwide is one of the leading causes of damages occurred in reinforced concrete over the lifespan. There are many critical energy and transportation infrastructures located on coastal regions exposed to high humidity and chloride content where they are highly prone to reinforcement corrosion. This calls for retrofit methods, which safeguard not only the strength but also the durability of corrosion deteriorated reinforced concrete structures. Carbon fiber polymers considering their mechanical and chemical properties are …

Cyclic Testing Of Reinforced Earthbag Walls, David Aguilar Rodriguez, Jeff Stein, Taylor Darby

Civil, Environmental and Sustainable Engineering Senior Theses

Earthen construction is the most popular building method around the world. One particular building method, using earthbags, has shown promise in performing well against seismic activity. This project undertook the goal of developing a preliminary seismic response modification factor, R, to be used in the design of homes in seismically active areas. Two 4’ wide x 6’ tall x 1’ deep walls were cyclically loaded using a Three-Degree-of-Freedom (TDOF) Test Frame provided by Santa Clara University to determine the in-plane shear capacity of each wall. Testing revealed an average yield force of 419 lbs, an average ultimate force 1058 lbs, …