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Now showing items 31-40 of 141
Multiscale structural investigation of bamboo under compressive Loading
(Massachusetts Institute of Technology, 2017)
Bamboo has been widely utilized as a load bearing material in building construction since ancient times by taking advantage of its excellent mechanical performance under loading as well as its low density and rapid growth. ...
Nervi's design and construction methods for two thin-shell structures : the Leverone Field House and Thompson Arena
(Massachusetts Institute of Technology, 2017)
This thesis studies two major thin-shell concrete structures by Pier Luigi Nervi (1891- 1979) - the Leverone Field House and Thompson Arena. These two similar parabolic vaults are two of the few international structures ...
Definitions of robust structural geometries : metrics and form finding
(Massachusetts Institute of Technology, 2016)
Robustness varies highly between applications and consequently it is difficult to precisely quantify. However, robustness is a property of a structural system and thus can be described as a function of its form; in other ...
Performance evaluation of spanning systems
(Massachusetts Institute of Technology, 2014)
The design of spanning systems is a common task that structural engineers perform, and beam theory is one of the first things taught in a mechanics course. This thesis studies a range of spanning systems, and evaluates ...
History and technology of Lemuel Chenoweth's covered bridges
(Massachusetts Institute of Technology, 2014)
Lemuel Chenoweth was a carpenter and bridge builder who played a key role in the development of the infrastructure of antebellum Virginia. Theodore Burr and Lewis Wernwag are among the designers who influenced the structure ...
The impact of Amtrak performance in the Northeast Corridor
(Massachusetts Institute of Technology, 2015)
The performance of Amtrak's Acela and Regional services in the Northeast Corridor (NEC) is a topic that, while frequently discussed as substandard by some travelers, has received minimal attention in the compendium of open ...
Analysis of volatile organic compounds (VOCs) in soil via passive sampling : measuring partition and diffusion coefficients
(Massachusetts Institute of Technology, 2015)
Passive sampling has been used as a qualitative and semi-quantitative method in detecting volatile organic compound (VOCs) concentrations in soil vapors or water. Passive sampling for soil vapor takes an absorptive material ...
Structural systems and conceptual design of cantilevers
(Massachusetts Institute of Technology, 2014)
Cantilevers are a popular way to express form and create unique feature spaces. From a design perspective, cantilevers are amazing feats for the built environment, and structurally, present many opportunities. However, ...
Wind-induced dynamic responses of structures with outrigger systems
(Massachusetts Institute of Technology, 2015)
A multi-degree of freedom lumped mass model with rotational springs was built to investigate the influence of outrigger system on the natural periods and mode shapes of a structure. The presence of outrigger system was ...
Vapor intrusion modeling : limitations, improvements, and value of information analyses
(Massachusetts Institute of Technology, 2014)
Vapor intrusion is the migration of volatile organic compounds (VOCs) from a subsurface source into the indoor air of an overlying building. Vapor intrusion models, including the Johnson and Ettinger (J&E) model, can be ...