Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Non-composite"”.
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FEA methodology for system-level redundancy evaluation: Application to non-composite steel bridges
… steel member. These mechanisms include partial composite action between the slab and steelwork and other phenomena not typically considered in current practice. The researched set of FEA procedures, techniques and inputs were benchmarked against available field experimental data and used to …
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Floor Vibrations: Girder Effective Moment of Inertia and Cost Study
… and a cost efficiency analysis comparing composite and non-composite floor systems that meet vibrations design standards, were conducted. The first study was undertaken because over-prediction of girder effective moment of inertia was the suspected cause of several recent vibration …
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Fatigue Performance and Shear Demand Distributions of Clustered Shear Connectors in Composite Bridge Girders
… flow demands at the steel-concrete interface of composite bridge girders. As stud pitch increases to beyond 24 in or as studs become clustered to account for pre-cast concrete decks, this assumed shear demand distribution may be unrepresentative. Understanding shear transfer and resulting demands …
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Feasibility Study of Partially Restrained Connections
… both hot rolled shapes and steel joists using non-composite and composite construction. The designs are than compared with respect to complexity, practicality, serviceability and economics. The results of this study show that partially restrained joist connections are economically superior to …
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The influence of fastener spacing on the slip modulus between cold formed steel and wood sheathing
Composite action is the joint behavior of two elements connected or bonded together. It is a phenomenon that is utilized in several applications throughout engineering. Previous studies have shown that cold formed steel (CFS) sheathed with structural wood panels exhibits a degree of partial …
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Effect of composite action on the dynamic behaviour of space structures
The application of composite action ushered a new era in the use of double-layer spaceframes as efficient floor systems in addition to their competitiveness as roof coveringstructural systems. Earlier research on space frames demonstrated large improvementsin their static behaviour caused by the …
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Evaluating the Effects of Shored Construction on Steel Girder Composite Bridges
<p>Steel composite girder bridges provide economic advantages and higher load-carrying capacity than non-composite alternatives. Over the years, a conventional sequence of un-shored construction for steel girder composite bridges has been developed. There is an alternative construction sequence, …
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Experiments on a Hybrid Composite Beam for Bridge Applications
… a study of the structural behavior of Hybrid-Composite Beams (HCB) consisting of a fiber reinforced polymer (FRP) shell with a concrete arch tied with steel prestressing strands. The HCB offers advantages in life cycle costs through reduced transportation weight and increased corrosion …
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Composite Multi-Story Rigid Frames Under Gravity and Lateral Loads.
… the design of a 12-story rigid frame bent with composite girders when horizontal loads produce the maximum forces for which the girders must be designed. Using an asymmetrical rigid frame with column spacings of 22' and 28', it was found that a decrease in frame weight of slightly greater than …
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Composite Right-Left Handed Stripline Structures for Antenna Array Feed Networks
<p>In this dissertation composite right/left-handed striplines are proposed as viable key structures in antenna array applications, enabling reduction of the overall feed network sizes as well as allowing integration opportunities and possible reduction of radiating beam pattern distortions.</p> …
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Glulam Timber Bridges for Local Roads
… girder bridges should be designed as fully non-composite members. Furthermore, design and construction guidelines for both types of bridges were proposed. A cost analysis showed that the superstructure cost of glulam timber bridges and glulam slab bridges can be 70% and 50% respectively of …
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Nonlinear Dynamics of Circular Plates under Electrical Loadings for Capacitive Micromachined Ultrasonic Transducers (CMUTs)
… slopes, forces, and moments from the composite to the non-composite regime of the CMUT. We attempted to validate this model with results from FEM simulations. In general, the center deflections from the macromodel fell below those from the FEM simulation, especially for relatively high …
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Structural performance of perforated steel beams with novel web openings and with partial concrete encasement
… web openings. A comprehensive investigation on non-composite and partially concrete encased perforated steel Isections with large web openings positioned along the centre-line of the beams was undertaken. This thesis enhances the current knowledge on these classes of perforated beams, as …