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University of Nebraska - Lincoln
Department of Construction Engineering and Management: Dissertations, Theses, and Student Research
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- Concrete (1)
- Construction falls (1)
- Corbel (1)
- Fall risk (1)
- Force Plate (1)
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- GFRP bars (1)
- Gait-stability metrics (1)
- Inertial Measurement Units (1)
- Long span (1)
- Maximum Lyapunov exponents (1)
- NU Ties (1)
- Postural stability (1)
- Precast (1)
- Precast concrete insulated wall panel (1)
- Prestress (1)
- Quantitative measurement (1)
- Quantitative measures (1)
- Roof (1)
- Thermal bridging (1)
- Thermal efficiency (1)
- Truss (1)
Articles 1 - 3 of 3
Full-Text Articles in Architecture
Assessing Gait And Postural Stability Of Construction Workers Using Wearable Wireless Sensor Networks, Houtan Jebelli
Assessing Gait And Postural Stability Of Construction Workers Using Wearable Wireless Sensor Networks, Houtan Jebelli
Department of Construction Engineering and Management: Dissertations, Theses, and Student Research
Falling accidents are a leading cause of fatal and nonfatal injuries in the construction industry. This fact demonstrates the need for a comprehensive fall-risk analysis that incorporates the effects of construction workers’ physiological characteristics. In this context, the objective of the thesis is to investigate and validate the usefulness of the gait- and postural-stability metrics in assessing construction workers’ fall risks. Diverse metrics that assess the capability to keep the body balanced and maintain coordination of body segments during locomotion (gait stability) and stationary postures (postural stability) have been introduced and used in clinical applications. However, their usefulness in the …
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 …