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Showing 1 to 18 of 18 for “"concrete piles"”.
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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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An investigation of the structural capacity of the Alabama Department of Transportation’s standard prestressed precast concrete piles
Prestressed precast concrete piles (PPCPs) are commonly used in bridge foundations throughout the southeastern United States. The Alabama Department of Transportation (ALDOT) particularly uses them in the coastal regions in non-cohesive soils and where corrosion would be expected from salt or …
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Manufacturing Quality of Carbon/Epoxy IsoTruss (R) Reinforced Concrete Structures
… grid structures for use as reinforcement in concrete piles. Large IsoTruss® grid structures were manufactured and embedded in 14.0" (35.6 cm) diameter concrete to create IsoPiles™. The IsoPiles™ were designed to have flexural characteristics similar to steel reinforced concrete piles of …
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Spiral Welded Pipe Piles For Structures In Southeastern Louisiana
… be designed to. Historically, USACE has used concrete piles or steel H-piles as the foundations for these structures. Because of the magnitude of obtaining 100-year level hurricane protection, limited resources, and a condensed timeline, spiral welded pipe piles can be manufactured as an …
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Idealization of pile to pile-cap connection with respect to lateral loads
… loads. In this connection prestressed precast concrete piles and reinforced concrete pile caps were given particular attention.
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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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Seismic Performance of Prestressed Pile-To-Bent Cap Connections
… practices involve driving precast prestressed concrete piles to a specified depth and leaving a portion of the pile above ground to be used for an intermediate superstructure support. The portions of the piles above ground are leveled within tolerance, and a bent cap cage is constructed around …
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Behavior of Batter Piles in Sand
… p-multiplier method proposed for the vertical piles. Average values of the p-multipliers appropriate for the small batter pile groups in sand were suggested. Investigations of various pile-to-pile cap connections for the prestressed concrete piles using full-scale static experimental results …
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Flexural Behavior of Carbon/Epoxy IsoTruss Reinforced-Concrete Beam-Columns
… stiffness and failure) of IsoTruss®-reinforced concrete beam-columns for use in deep foundation pile applications. Four-point bending tests were performed in the laboratory on two instrumented carbon/epoxy IsoTruss® reinforced concrete piles (IRC piles) and two instrumented steel reinforced …
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Investigations of Pile Foundations in Brownfields
… to clean, improve and protect the environment. Piles foundations are often used in Brownfields to support structures. Regulators are concerned about the environmental safety of pile foundations in Brownfields sites. Piling in Brownfields may lead to transport of contaminants from the …
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Seismic induced flow deformation and remediation study of Sardis Dam
… using rows of rectangular prestressed reinforced concrete piles. Estimating post-liquefaction deformations for this remediation scheme posed challenging problems in analysis.
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An Experimental and Theoretical Study of Pile Foundations Embedded in Sand Soil
… the load carrying capacity of model instrumented piles embedded in sand soil, and to develop and verify reliable, highly efficient predictive models to fully correlate the non-linear relationship of pile load-settlement behaviour using a new, self-tuning artificial intelligence (AI) approach. In …
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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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Development of a pile condition index and a road map for the development of a structural section rating
… repeatable method for assessing the condition of concrete piles, is developed in this thesis. The Pile CI takes routine inspection data and transforms them into a standardized numeric rating, which indicates both the physical integrity of the pile and the level of remedial action necessary to …
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Numerical and physical modelling of piled rafts on soft clay under combined loading
… the overall response of the foundation. Once the piles are introduced under a raft, the conventional design practice requires that the pile group should be designed to be able to sustain the entire load, ignoring the contribution of the raft, with significant associated financial and environmental …
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Experimental and Analytical Investigations of Piles and Abutments of Integral Bridges
… joints from bridges crates concerns for the piles and the abutments of integral bridges because the abutments and the piles are subjected to temperature-induced cyclic lateral loads. As temperatures change daily and seasonally, the lengths of integral bridges increase and decrease, pushing …
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Seismic performance of pile-reinforced slopes
… a row of discretely spaced vertical precast concrete piles. This study focussed on permanent movement and dynamic response at different positions within the slope, especially at the crest, which would form key inputs into the aseismic design of supported infrastructure. In contrast to …
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Transferência de Carga de Estacas Hélice Contínua Instrumentadas em Profundidade
Esta pesquisa apresenta a análise de seis provas de carga à compressão, com carregamento lento, realizadas em estacas hélice contínua com 0,40m, de diâmetro e comprimentos variados. As estacas foram executadas em diferentes municípios da Região Metropolitana da Grande Vitória-ES, Brasil. Ao lado de …