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Showing 1 to 15 of 15 for “"precast prestressed concrete"”.
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Lifting Analysis of Precast Prestressed Concrete Beams
… are performed to investigate the behavior of concrete beams during lifting and to validate the proposed method. Additionally, a statistical characterization of beam imperfections is presented, based on recently conducted field measurements of beam lateral sweep and eccentricity of lift …
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The design procedures of continuous bridges with precast, prestressed concrete girders
Digitized by Kansas Correctional Industries
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The design procedures of continuous bridges with precast, prestressed concrete girders
Digitized by Kansas Correctional Industries
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Permanent exhibition hall for trade and industry in precast prestressed concrete
Thesis (M. Arch)--Massachusetts Institute of Technology, Dept. of Architecture, 1963.
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Continuity of bridges composed of simple-span precast prestressed concrete girders made continuous
Bridges composed of simple-span, precast, prestressed concrete girders made continuous via cast-in-place decks and diaphragms are continuous only for live loads and superimposed dead loads. The continuity diaphragms often crack due to time dependent effects in the girders. These cracks not only …
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Development of Design Criteria for Simply Supported Skew Slab-and-Girder Bridges (Distribution, Load, Truck, Live, Wheel)
… which do not include the effects of skew. The precast prestressed concrete and steel I-beam girders are modeled as eccentric stiffeners which cause shear lag in the slab. The effect of skew on the solution accuracy is demonstrated.
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Seismic Performance of Prestressed Pile-To-Bent Cap Connections
… Typical construction 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 …
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Anchorage Zone Design for Pretensioned Bulb-Tee Bridge Girders in Virginia
Precast/Prestressed concrete girders are commonly used in bridge construction in the United States. The application and diffusion of the prestress force in a pretensioned girder causes a vertical tension force to develop near the end of the beam. Field surveys of the beam ends of pretensioned …
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Steam Cured Self-Consolidating Concrete and the Effects of Limestone Filler
… and durability performance of self-consolidating concrete designed and cured for precast/prestressed applications. This study investigates the role of limestone filler on the hydration kinetics, mechanical properties (12 hours to 300 days), microstructural and durability performance (rapid …
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Shear and Peel Stresses at the Interface between Hollowcore Slabs and the Topping Concrete
… industrial and institutional buildings. They are precast/prestressed concrete elements produced using the extrusion process. Their surface finish can be “machine-cast” or “intentionally roughened”. A typical floor consists of a number of hollowcore slabs that are connected together. Prestressing …
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Residual flexural strength of corroded AASHTO TYPE II pretensioned concrete girder-deck system
<p>Precast-prestressed concrete (PC) girders are among the most cost-effective type of girders used on highway bridges. Unfortunately, in corrosive environments, corrosion of strands may result in cracking or spalling of concrete, cross-section loss of strands and degradation of material …
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Rehabilitation of concrete girders with distressed end regions using innovative materials
Concrete bridges play an important role in the transportation network. However, there are more than 56,000 bridges that have been identified as structurally deficient in the U.S., especially those bridges located in the Northern part of the U.S. where harsh climate inflicts severe damage to the …
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Prediction of Time-Dependent Stresses and Deflections in Prestressed, Concrete Girders: From Start of Fabrication to End of Service Life
… need accurate prediction of the camber in precast, prestressed, concrete girders. Large differences in the camber between adjacent girders lead to significant construction difficulties that often have financial and/or legal ramifications. Many factors affect the time-dependent deflections …
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Advanced Seismic Design of Innovative Precast Systems for Structural Response Control
… developed. Innovative Systems applied to Precast Concrete Structures. The introduction of innovative structural systems for seismic response control is particularly effective for precast prestressed concrete structures. Precast structural elements, produced in the factory and trucked in …
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Adaptive prestressing system for concrete structures using shape memory alloys
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2025-12-01