Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Achievement (1)
- Acoustics (1)
- Analysis (1)
- Bridge Deck Concrete (1)
- Concrete (1)
-
- Corbel (1)
- Decision (1)
- Early-age Shrinkage Cracking (1)
- Economic (1)
- Feasibility (1)
- GFRP bars (1)
- High performance (1)
- Landscape Architecture (1)
- Landscape Benefits (1)
- Landscape Performance (1)
- Long span (1)
- Low-cement Concrete (1)
- Mixed Methods (1)
- NU Ties (1)
- Nebraska (1)
- Operational (1)
- P Street (1)
- Precast (1)
- Precast concrete insulated wall panel (1)
- Prestress (1)
- Road diet (1)
- Roof (1)
- Schools (1)
- Student (1)
- Thermal bridging (1)
- Publication
-
- Department of Construction Engineering and Management: Dissertations, Theses, and Student Research (2)
- Department of Civil and Environmental Engineering: Dissertations, Theses, and Student Research (1)
- Department of Civil and Environmental Engineering: Faculty Publications (1)
- Durham School of Architectural Engineering and Construction: Dissertations, Thesis, and Student Research (1)
- UCARE Research Products (1)
Articles 1 - 7 of 7
Full-Text Articles in Architecture
Reducing Early-Age Shrinkage Cracks Of Bridge Decks And Rails, Soumitra Das, George Morcous, Jiong Hu
Reducing Early-Age Shrinkage Cracks Of Bridge Decks And Rails, Soumitra Das, George Morcous, Jiong Hu
UNL Student Research Days Posters, Graduate
Early-age shrinkage cracking of concrete bridge decks and rails accelerates the penetration of water and chemicals which leads to reinforcement corrosion, delamination, and eventually spalling. All this results in shorter service life, road closure, and costly repair. Development of Low-cement concrete(LCC) mix to reduce early age shrinkage crack through aggregate grading optimization was done in this research work. This approach also reduces concrete cost ($15-$20/cyd) (15–25%) and its carbon footprint (≈15%).
Measuring Landscape Performance: Case Study Investigation, Hannah Michelle Lopresto, Brandon Zambrano, Catherine De Almeida
Measuring Landscape Performance: Case Study Investigation, Hannah Michelle Lopresto, Brandon Zambrano, Catherine De Almeida
UCARE Research Products
Participating in the Landscape Architecture Foundation’s 2018 Case Study Investigation has been an incredibly informative experience for our research team at the University of Nebraska-Lincoln. We are eager to shine a spotlight on the landscape performance of two Great Plains projects: P Street Corridor, a revitalized downtown streetscape in Lincoln, Nebraska, and Tom Hanafan River’s Edge Park, a waterfront redevelopment in Council Bluffs, Iowa. Working on the post-occupancy study of both projects has been extremely beneficial in understanding how reclaiming underutilized sites can create high-performing landscapes. Both are public projects in urban settings with primary goals of transforming formerly unpleasant, …
Road Diet Feasibility Analysis For Nebraska, Brandon L. Purintun
Road Diet Feasibility Analysis For Nebraska, Brandon L. Purintun
Department of Civil and Environmental Engineering: Dissertations, Theses, and Student Research
Many rural towns and cities throughout Nebraska have experienced consistent population decline over the past 50 years, and the highway system once built to accommodate hoped-for growth is not serving the population as well as it could. These towns and cities would benefit from implementing a road diet conversion on their main highways. Within rural communities, road diets are an increasingly popular method of improving safety along major arterials through the reduction of excess capacity in favor of increasing refuge areas for turning vehicles. A typical application might be the restriping of a four-lane undivided highway into a three-lane highway …
How Acoustics In California High Performance Schools Relate To Student Achievement, Devin K. Wong
How Acoustics In California High Performance Schools Relate To Student Achievement, Devin K. Wong
Durham School of Architectural Engineering and Construction: Dissertations, Thesis, and Student Research
This research project seeks to determine if students attending K-12 schools meeting a minimum standard of high performance classroom conditions in the state of California do evidence higher scholastic achievement, based on publically available results on state-wide standardized tests. In three phases, a subset of 200+ schools applying for grants dedicated to building high performance schools over the past decade was correlated with an existing database of achievement scores for all public schools in California. The criteria utilized to specify high performance classrooms was provided by the California High Performance Initiative (HPI) Grant program. Academic achievement was evaluated on a …
A Simple Method For Estimation Of Queue Length, S. P. Anusha, Lelitha Devi Vanajakshi, Anuj Sharma
A Simple Method For Estimation Of Queue Length, S. P. Anusha, Lelitha Devi Vanajakshi, Anuj Sharma
Department of Civil and Environmental Engineering: Faculty Publications
Urban arterials are characterized by frequent intersections. Queue length and delay are the two primary measures of performance of intersection. These measures play a primary role in determining the arterial performance. This article presents a methodology to determine the number of vehicles in queue at a signalized intersection for under saturated traffic conditions. The results obtained were validated using actual values that are manually extracted. The root-mean-square error is of the range 1.3 vehicles for estimation of number of vehicles in queue. The various aspects that have to be considered in accurate estimation of performance measures are also discussed.
Precast/Prestressed Concrete Truss-Girder For Roof Applications, Peter S. Samir
Precast/Prestressed Concrete Truss-Girder For Roof Applications, Peter S. Samir
Department of Construction Engineering and Management: Dissertations, Theses, and Student Research
Steel trusses are the most popular system for supporting long span roofs in commercial buildings, such as warehouses and aircraft hangars. There are several advantages of steel trusses, such as lightweight, ease of handling and erection, and geometric flexibility. However, they have some drawbacks, such as high material and maintenance cost, and low fire resistance. In this paper, a precast concrete truss is proposed as an alternative to steel trusses for spans up to 160 ft. without intermediate supports. The proposed design is easy to produce and has lower construction and maintenance costs than steel trusses. The proposed design is …
Precast Concrete Insulated Wall Panel Corbels Without Thermal Bridging, Mohamed Elkady
Precast Concrete Insulated Wall Panel Corbels Without Thermal Bridging, Mohamed Elkady
Department of Construction Engineering and Management: Dissertations, Theses, and Student Research
The common practice in corbel design is to block out the insulation in order to provide a solid concrete area at the corbel location. This connection practice results in thermal bridging, which significantly reduces the energy performance of the panel. For example, the PCI Design Handbook indicates that the reduction in thermal resistance caused by a solid part with an area equal to 9% of the total panel surface area is as high as 42%. This paper presents a discussion of a new concept for corbel design of insulated wall panels with the thermal break totally preserved. Two different designs …