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 18 of 18 for “"concrete pile"”.
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Seismic modeling, analysis and design of structural concrete pile-deck connections
… behavior of shallow embedment, structural concrete pile-deck connections: (i) the implementation and validation of a computational model that includes the resulting rotations due to slip of reinforcing dowels at the pile-deck interface, (ii) the evaluation of damage indices reported in the …
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Seismic Performance of Prestressed Concrete Piles In Cip Reinforced Concrete Pile Caps
<p>The behavior of precast prestressed piles in cast-in-place (CIP) reinforced concrete bent caps subjected to seismic loading is not well understood. Current standard SCDOT connection details require the plain embedment of the pile into the bent cap one pile diameter with a construction tolerance …
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Idealization of pile to pile-cap connection with respect to lateral loads
… thesis is concerned with study of behavior of pile to pile-cap connection with respect to lateral loads. In this connection prestressed precast concrete piles and reinforced concrete pile caps were given particular attention.
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In-Situ Testing of a Carbon/Epoxy IsoTruss Reinforced Concrete Foundation Pile
… on the field performance of IsoTruss®-reinforced concrete beam columns for use in driven piles. Experimental investigation included one instrumented carbon/epoxy IsoTruss®-reinforced concrete pile (IRC pile) and one instrumented steel-reinforced concrete pile (SRC pile) which were driven into a …
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Finite element analyses of pile load tests performed in the Yorktown formation, Newport News, Virginia
… the load-capacity and behavior of a single concrete pile modeled after full scale instrumented test piles which were employed in the Tidewater area of Virginia. Specifically, this report describes the subsurface conditions and full scale pile tests that were performed during the design phase …
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Nondestructive detection of foundation pile embedment depths for high mast light towers
Records of pile lengths are not available for several hundred high mast light towers (HMLTs) throughout Minnesota. The foundation systems, typically steel H-piles or concrete-filled steel pipe piles connected to a triangular concrete pile cap, risk overturning in the event of peak wind loadings if …
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A new signal processing method for acoustic emission/microseismic data analysis
… evaluated with data from a coal mine and a 3-D concrete pile laboratory experiment. The accuracy of picking was found to be highly dependent on the choice of wavelet function, the decomposition scale, CF, and window size. The performance of the algorithm has been compared with that of a human …
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A Laboratory and Field Study of Composite Piles for Bridge Substructures
Typically, foundation piles are made of materials such as steel, concrete, and timber. Problems associated with use of these traditional pile materials in harsh marine environments include steel corrosion, concrete deterioration, and marine borer attack on timber piles. It has been estimated that …
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A Multicriteria Based Quantitative Framework for Assessing Sustainability of Pile Foundations
… form of materials and natural resources (e.g., concrete, steel and land use). Hence, geotechnical engineering warrants a sustainability study to balance the environmental effectiveness, technological feasibility and economic profitability in any civil engineering project. </p> <p>In this thesis, …
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A Hybrid Approach for Nonlinear Soil-Structure Interaction Analysis of Pile- Supported Bridges
The large-diameter reinforced concrete pile shafts are commonly designed as an economical solution for foundation of highway bridges in soft soils. The substructure method is a widely used technique for seismic SSI analysis of pile-supported bridges due to its remarkable computational efficiency. …
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Investigation of the Resistance of Pile Caps to Lateral Loading
… These foundations consist of groups of piles coupled together by concrete pile caps. These pile caps, which are often massive and deeply buried, would be expected to provide significant resistance to lateral loads. However, practical procedures for computing the resistance of pile caps …
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THE SHEAR BEHAVIOUR OF THE REINFORCED CONCRETE FOUR-PILE CAPS
… the shear capacity of 2-way spanning reinforced concrete pile caps from bending theory-based empirical design formulae. This causes designers difficulty to predict an accurate shear capacity of the pile cap. The inherently empirical character of the formulae is due to the fact that the formulae …
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Numerical Simulations of Spread Foundations Supported on Stone Columns Using the Discrete Element Method
… and the behavior resembles more like that of a concrete pile. These types of behavioral differences also have different implications for single isolated stone columns and group column behavior.</p>
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Structural behavior and modeling of high-performance fiber-reinforced cementitious composites for earthquake-resistant design
For earthquake-resistant design, adequate concrete confinement is vital for a ductile structural response and for providing a stable energy dissipating mechanism. Since concrete materials generally exhibit quasi-brittle failure and a low tensile strength, designers of traditional reinforced …
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Calculated versus measured static capacity for two pile types
… 50 years and both were founded on driven piles. The bridge on Route WW (A-2141) was founded on driven steel shells which were then filled with concrete (referred to as cast-in-place, CIP). The bridge on Route U (N-0771) was founded on driven, precast concrete piles. The replacement bridges …
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Thermally-induced ratcheting behaviour of laterally-loaded reinforced concrete energy piles in sand
An energy pile is an energy geostructure that has been increasingly used in practice for supporting and reducing carbon emissions from buildings or other infrastructure. It is subjected to vertical loading from the self-weight of the superstructure above, possibly horizontal loading due to pile …
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Numerical and physical modelling of piled rafts on soft clay under combined loading
Piled raft foundations are typically used in cases where a shallow foundation is inadequate to sustain the loads of the superstructure either because of lack of capacity or because of excessive displacement. They consist of two components, namely the raft and the pile group, contributing to the …
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Seismic Performance of Prestressed Pile-To-Bent Cap Connections
… of the bridge structures in South Carolina use a pile-to-bent cap connection detail in their bridge bents which relies completely on mechanical bond to develop a load path from the superstructure of the bridge to the foundation. Typical construction practices involve driving precast prestressed …