Decision-Making Tool For Road Preventive Maintenance Using Vehicle Vibration Data,
2019
Texas A&M University
Decision-Making Tool For Road Preventive Maintenance Using Vehicle Vibration Data, Changbum Ahn, Chao Wang, Jing Du
Publications
Automated and timely road pavement damage inspection is critical to the preventive maintenance and the long-term sustainability and resilience of roads in Region 6. Current road inspection practices rely heavily on a manual process. Sensor-based methods (e.g., LiDAR scanning) are promising but can be too expensive for a wider adoption. This study employs a crowdsourcing approach of using the vibration patterns of regular vehicles in inferring specific types of road damages. A cloud-based smart phone app and system was developed to collect real-time vehicle vibrations, location data, and road damage images for training the detection model. However, there is a …
Strategies For Prioritizing Needs For Accelerated Construction After Hazard Events,
2019
University of New Mexico
Strategies For Prioritizing Needs For Accelerated Construction After Hazard Events, Fernando Moreu, Chao Wang, Xinxing Yuan, Laleh Ghanbari, Claudia Garrido
Publications
There is a need for rapid and responsive infrastructure repair and construction after natural disaster events such as hurricanes, wildfires, and tornadoes. These natural disasters often shut down basic infrastructure systems, as experienced recently in several Region 6 states as well as in other states around the country. Accelerated construction practices are often used in these situations to speed up the traditional, and often slow, project delivery process. However, after a natural disaster, several and different types of transportation infrastructure components are in need of inspection, rehabilitation or reconstruction, and transportation agencies are challenged with the task of prioritizing these …
Development Of Metals Corrosion Maps Of Arkansas And Maintenance Of Cross-Drains,
2019
Arkansas State University
Development Of Metals Corrosion Maps Of Arkansas And Maintenance Of Cross-Drains, Zahid Hossain, Ashraf Elsayed, Mdariful Hasan
Publications
Corrosion potential of metallic structures in alluvial soils is governed by chemical and electromagnetic properties of the soils. Geotechnical engineers are generally more concerned about different types of soils and their physical and mechanical properties than the chemical aspects. The main objective of this study is to analyze the geotechnical, electrochemical and electromagnetic properties of soils in Arkansas. Important parameters (e.g., soil resistivity) related to corrosion potential of metal culverts have been predicted through neural network (NN) models. The developed NN models have been trained and verified by using laboratory test results of soil samples collected from Arkansas Department of …
A Comprehensive Framework For Life-Cycle Cost Assessment Of Reinforced Concrete Bridge Decks,
2019
Oklahoma State University
A Comprehensive Framework For Life-Cycle Cost Assessment Of Reinforced Concrete Bridge Decks, Mohamed Soliman, Samir Ahmed, Ligang Shen
Publications
Various environmental and mechanical stressors cause deterioration of concrete bridge decks. Normal wear and tear, freeze and thaw cycles, and chloride penetration due to deicing salts can cause aggressive deterioration that usually require frequent interventions during the life-cycle of the bridge. These interventions include deck maintenance and repairs (e.g., application of sealers or overlay placement) as well as bridge deck replacement. The quantification of the life-cycle cost of bridge decks considering maintenance and repair activities represents a significant challenge facing local and state transportation agencies. The life-cycle maintenance activities not only increase the direct life-cycle cost of the bridge, but …
Assessment Of Project Risks In Fast-Track Construction Projects,
2019
University of New Mexico
Assessment Of Project Risks In Fast-Track Construction Projects, Claudia Garrido Martins
Civil Engineering ETDs
Fast-tracking has been extensively used to respond to demands for reduced construction project delivery times. Unique risks arising from the overlapping of activities can threaten the project. A framework is proposed to assess project risks in fast-track construction projects to better understand the intersection of fast-track, risks, and construction. The research used a commercial construction renovation project as a case study, semi-structured interviews, simulation and optimization methods to identify risks of overlapping activities, classify the risks, evaluate the impact of risks and risk mitigation actions, and optimal combinations to minimize the risk impact and mitigation costs. This study resulted in …
Test Setup Design And Cyclic Evaluation Of Rocking Clt Wall And Floor Restoring Force Lateral System,
2019
Portland State University
Test Setup Design And Cyclic Evaluation Of Rocking Clt Wall And Floor Restoring Force Lateral System, Aaron Davis Smith
Civil and Environmental Engineering Master's Project Reports
The introduction of the demand for mass timber buildings in areas with seismic hazards has called for new lateral systems. Lateral systems in mass timber building typically utilize a rocking shear wall with post-tensioned rods to provide system re-centering. These post-tensioned rods add axial load to the shear wall and potentially endure long term creep affects. Mass Timber buildings consist of cross laminated (clt) shear walls and floor slabs along with glulam beams. The flexural capacity of the CLT floor slabs along with dead load can provide an alternative source for the restoring force. This project developed a test setup …
Bs News July/August,
2019
Technological University Dublin
Development Of A Framework To Support The Effective Adoption Of Bim In The Public Sector: Lessons For Ireland,
2019
Technological University Dublin
Development Of A Framework To Support The Effective Adoption Of Bim In The Public Sector: Lessons For Ireland, Shiyao Kuang, Alan Hore, Barry Mcauley, Roger West
Conference papers
Building Information Modelling (BIM) has been formally adopted by many countries with the promise of creating greater economic, social and sustainability benefits. Several authors and institutions have presented alternative BIM policies and tactics which have been adopted by developed countries. However, there is evidence to indicate that BIM adoption theories are not well established and, in particular, the linkage between BIM public sector adoption strategy outcomes and their contribution to achieving Government policy objectives are underdeveloped. This paper will present the outcome of the first phase of a systematic literature review of published studies (including journal papers and noteworthy international …
A Decision-Making Tool For Incorporating Cradle-To-Gate Sustainability Into Pavement Design,
2019
Louisiana State University and Agricultural and Mechanical College
A Decision-Making Tool For Incorporating Cradle-To-Gate Sustainability Into Pavement Design, Sujata Subedi
LSU Master's Theses
The need to continually maintain an aged and crumbling national roadway network, together with a growing demand for upgrading has resulted in major environmental and economic impacts around the nation. This has led to an interest in developing a structured framework to quantify the sustainability performance of pavements by balancing economic and environmental performance against engineering criteria. This study developed an Environment Product Declaration (EPD) based, decision-making framework to quantify the sustainability of pavement design alternatives. In this study, the sustainability of pavement is described in tandem with Environmental and Economic performance criteria. First, the Environmental analysis was inclusive of …
Nonlinear Mechanical Properties Of Road Pavements: Geometric Symmetries Explain The Empirical Difference Between Roads Built On Clay Vs. Granular Soils,
2019
The University of Texas at El Paso
Nonlinear Mechanical Properties Of Road Pavements: Geometric Symmetries Explain The Empirical Difference Between Roads Built On Clay Vs. Granular Soils, Afshin Gholamy, Vladik Kreinovich
Departmental Technical Reports (CS)
It is empirically known that roads built on clay soils have different nonlinear mechanical properties than roads built on granular soils (such as gravel or sand). In this paper, we show that this difficult-to-explain empirical fact can be naturally explained if we analyze the corresponding geometric symmetries.
Employing Biomimicry In Urban Metamorphosis Seeking For Sustainability: Case Studies,
2019
Qatar University
Employing Biomimicry In Urban Metamorphosis Seeking For Sustainability: Case Studies, M. Salim Ferwati, Maryam Alsuwaidi, Arezou Shafaghat, Ali Keyvanfar
Faculty Articles
Objective: The current study has aimed to develop the framework of biomimicry involvement in urban metamorphosis for sustainability. This research has engaged four objectives to achieve the aim. Objective one is to explore the rudiment interaction between human and nature through interrogating history, nature’s design. Objective two is to excavate the biomimicry in emulating nature’s genius. Objective three is to investigate the association between biomimicry and sustainable development, focusing on architectural features. Objective four is to develop the framework based on the biomimicry rules for human evolution and survival in the natural environment. Methodology: To achieve objective one, the grounded …
Investigation Of Grout - A Comparison Of Standard Grout Mix To Self-Consolidating Grout Mix,
2019
California Polytechnic State University, San Luis Obispo
Investigation Of Grout - A Comparison Of Standard Grout Mix To Self-Consolidating Grout Mix, Rachel Garcia Chandler
Architectural Engineering
Masonry is a major structural material for low rise buildings, however the design of masonry buildings is rarely taught as a formal course at most universities. As part of the educational experience and to become familiar with the specifications and testing procedures for grouted masonry, a student run experiment on varying the water to cement ratio of masonry grout was conducted. The purpose is to report on the effects of changing the water-to-cement (W/C) ratios in a standard grout mix. The typical W/C ratio is approximately 0.80:1.00. In order to show the effects of increasing water in a grout mix, …
Creating A Pull Planning Guide For Industry Use,
2019
California Polytechnic State University, San Luis Obispo
Creating A Pull Planning Guide For Industry Use, Michael B. Avila
Construction Management
The construction industry is quickly making Pull Planning sessions a commodity only the largest companies can afford due to expensive consultants and the common perception of a complicated process. Pull Planning does not need to be complicated but can be quickly implemented by all types of companies utilizing extensive research completed on The Last Planner System. The benefits of Pull Planning include creating buy-in to the plan, making hand-offs known, and creating reliability and trust from the key Players on a project. As the demand for a more productive construction project rises, it is increasingly important for the scheduling methods …
Journeyman International - Rubagabaga Evc And Ace - Rwanda, Africa,
2019
California Polytechnic State University, San Luis Obispo
Journeyman International - Rubagabaga Evc And Ace - Rwanda, Africa, Jake M. Stom
Construction Management
Rubagabaga EVC and ACE, or Empowering Villages Center and Agricultural Center of Excellence, is an interdisciplinary project based senior project completed by California Polytechnic State University, San Luis Obispo students. College of Architecture and Environmental Design students Jake Stom, Mackenzie Diaz, Julia De Hart, and Jenna Williams completed the design and preconstruction services with the help of non-profit humanitarian organization, Journeyman International. The deliverable aims to serve the client, Empowering Villages, by providing the complete design of a community center and agricultural training facility near Kaseke Village in Rwanda. The goal is to provide the local community with development efforts …
Parents For Joy, Atascadero All-Inclusive Playground,
2019
California Polytechnic State University, San Luis Obispo
Parents For Joy, Atascadero All-Inclusive Playground, Harrison R. Tucker
Construction Management
Parents for Joy is an organization that was created in 2014 by a group of parents and families living around the Atascadero community who have children with special needs. The group raised over one million dollars to build a playground that enhances the safety of both children and adults with special needs, regardless of what needs they possess. Nick Volluci and Harrison Tucker, the author, were chosen to assist on this project in order to provide a high quality and methodical product that catered to the special requirements set forth by the owners, Parents for Joy and the City of …
Coffey Park - Is It Worth Rebuilding Homes Or Should Fire Victims Look To Modular Housing?,
2019
California Polytechnic State University, San Luis Obispo
Coffey Park - Is It Worth Rebuilding Homes Or Should Fire Victims Look To Modular Housing?, Shelby A. Hession
Construction Management
In October 2017, Coffey Park, a neighborhood within the city of Santa Rosa, CA, experienced mass destruction from the Tubbs Fire. Most of the neighborhood was burnt down, leaving fire victims with empty lots that they need to decide what to do with. For the average person, being well versed in the construction process and the different methods that can be used in the recovery process is rare. This paper is a tool to provide those in fire recovery with all of the information they will need in one place. Both modular and traditional stick-built housing are explored in this …
Revision Of The Archicad Manual For Cm 115,
2019
California Polytechnic State University, San Luis Obispo
Revision Of The Archicad Manual For Cm 115, Emma Wagner
Construction Management
Each CM 115: Fundamentals of Construction Management section contains a quarter long project, the goal of which is to familiarize the students with a modeling software. More so, the goal of the project is to introduce them to a set of construction documents- how to get started, what is included, what they need to pay attention to as a construction manager, and most importantly, to implement what they learn from their written coursework completed during class. This manual was written to help students complete this assignment to the best of their ability, producing a piece of work that shows they …
A Case Study On The Ciob Global Student Challenge - Project Overview,
2019
California Polytechnic State University, San Luis Obispo
A Case Study On The Ciob Global Student Challenge - Project Overview, Jacob Ryan Navarre
Construction Management
An international construction competition called the Chartered Institute of Building (CIOB) Global Student Challenge has been introduced recently and is starting to gain attention in the United States. The competition is based on the utilization of a virtual construction simulation program called MERIT. Virtual construction simulations have been around for decades, yet, are still somewhat new to the construction industry and construction education programs. This past year, a group of California Polytechnic State University students studying Construction Management participated in the competition as the university’s first ever team. This paper will examine the competition as a whole, providing details on …
Case Study: Using Geofoam On A School Project In Encinitas, Ca,
2019
California Polytechnic State University, San Luis Obispo
Case Study: Using Geofoam On A School Project In Encinitas, Ca, Matthew D. Gaebe
Construction Management
This paper is a case study that identifies why Geofoam was used as in-fill material for a construction project located at a high school in Encinitas, CA. The Geofoam was installed under a stairway that connects to a structural retaining wall. The concrete formwork was connected directly to the foam and the stairs were poured in place onsite. The foam acted as the on-grade material, so the concrete stairs did not have to be self-supporting. The purpose of this study is to understand the benefits of using Geofoam, as the in-fill material, as opposed to other traditional materials. An analysis …
Logistics Of Construction In Agbokpa, Ghana,
2019
California Polytechnic State University, San Luis Obispo
Logistics Of Construction In Agbokpa, Ghana, Fletcher David Podosek
Construction Management
In August of 2019, three Cal Poly CM students will travel to the remote fishing village of Agbokpa in Ghana. Our project is to install a water filtration system that will create potable water for the villagers that currently have to walk miles to obtain clean water. We will be laying nearly 1000 ft of pipe, installing a solar powered pump, and building a water filtration system hours away from any electricity. A project of this type requires a great deal of logistical planning in order to ensure that all aspects of the project is thought of and planned for. …
