Design Analysis and Experimental Behavior of Precast Concrete Double-Tee Girders Prestressed with Carbonfiber-Reinforced Polymer Strands

Spadea, Saverio; Rossini, M.; Nanni, Antonio

doi:10.15554/pcij63.1-01

Cited by 20 publications

(4 citation statements)

References 12 publications

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“…GFRP bars may experience strength degradation in alkali exposure [34], and CFRP strands may experience creep rupture and excessive relaxation over the long period [35]. For these reasons, even if FRP is not affected by corrosion, an FRP-RC/PC structure may reach a condition of structural deficiency.…”

Section: Demolition and Reconstruction Costmentioning

confidence: 99%

Life-Cycle Cost and Life-Cycle Assessment Analysis at the Design Stage of a Fiber-Reinforced Polymer-Reinforced Concrete Bridge in Florida

Cadenazzi

Dotelli

Rossini

et al. 2019

Advances in Civil Engineering Materials

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To support and promote the deployment of innovative technologies in infrastructure, it is fundamental to quantify their implications in terms of both economic and environmental impacts.Glass Fiber-Reinforced Polymer (GFRP) bars and Carbon Fiber-Reinforced Polymer (CFRP) strands are validated corrosion-resistant solutions for Reinforced Concrete (RC) and Prestressed Concrete (PC) structures. Studies on the performances of FRP reinforcement in seawater and saltcontaminated concrete have been conducted and show that the technology is a viable solution.Nevertheless, the economic and environmental implications of FRP-RC/PC deployment have not been fully investigated. This paper deals with the Life Cycle Cost (LCC) and Life Cycle Assessment (LCA) analyses of an FRP-RC/PC bridge in Florida. The bridge is designed to be entirely reinforced with FRP bars and strands and does not include any Carbon Steel (CS) reinforcement. Furthermore, the deployment of seawater concrete in some of the elements of the bridge is considered. LCC and LCA analyses at the design stage are performed. Data regarding equipment, labor rates, consumables, fuel consumption and disposal were collected during the construction phase and the analysis is refined accordingly. The FRP-RC/PC bridge design is

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Section: Demolition and Reconstruction Costmentioning

confidence: 99%

Life-Cycle Cost and Life-Cycle Assessment Analysis at the Design Stage of a Fiber-Reinforced Polymer-Reinforced Concrete Bridge in Florida

Cadenazzi

Dotelli

Rossini

et al. 2019

Advances in Civil Engineering Materials

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“…In relation to pre-tensioned structures, Zdanowicz et al (2019) summarized the results of flexural or shear tests of beams with rectangular sections (Zou 2003), I-beams (Yonekura et al 1993), side-by-side box-beam bridges (Grace et al 2011) or hollow core slabs (Shapack et al 2015), observing larger deflections and crack widths in comparison to steel but ductile failures or higher ultimate capacity in the case of prestressing with CFRP or AFRP tendons. Some other authors (Fornůsek et al 2009, Thorhallsson andJonsson 2012;Pearson and Donchev 2013;Singh and Svecova 2014;Crossett et al 2015;Mirshekari et al 2016;Zawam et al 2017;Spadea et al 2018;Pavlović et al 2019, Belarbi et al 2019) have studied the performance of structures prestressed with FRP, principally under flexure, sustained or fatigue loading. In relation to the type of fibers, according to Nanni and Rossini (2020), GFRP tendons might only be an alternative for low levels of prestressing.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Model for the Shear Strength of Prestressed Concrete Beams with FRP Tendons

Oller,

Murcia-Delso,

Marí

et al. 2024

J. Compos. Constr.

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Prestressing tendons made of fiber-reinforced polymers (FRP) are a promising alternative to conventional steel tendons in prestressed concrete structures owing to their corrosion resistance.However, the shear strength of FRP prestressed concrete beams is still not well understood. This paper presents a theoretical model for predicting the shear strength of prestressed concrete beams with FRP tendons or strands, with and without FRP shear reinforcement. The model is an extension of the Compression Chord Capacity Model (CCCM), originally proposed for steelreinforced concrete structures, which has been adapted to account for the particularities of FRP as active and passive reinforcement. The model is applicable to rectangular, T and I sections, and accounts for reductions in shear strength caused by bond loss in FRP tendons. An experimental validation of the model has been performed by comparing the theoretical predictions for 55 shear tests found in the literature. Good accuracy has been obtained, not only in predicting the ultimate shear capacity of beams but also in identifying shear-bond failures observed in some tests.

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“…Through the design and construction of a real-life project, the feasibility of this new floor system was verified. Other kinds of assembled or assembled integral in floor systems, such as PK prestressed composite slab floor system [15], the assembled monolithic hollow-ribbed floor [16], prefabricated PC floor system [17], and other new systems [18][19][20][21][22] were all investigated through experimental and theoretical methods. Though the assembled techniques could greatly shorten the construction time and enhance the construction efficiency, there is still an urging worry about its stiffness and anti-crack properties under designed load.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on Flexural Behavior of a Full-Scale Assembled Integral Two-Way Multi-Ribbed Composite Floor System

Zeng,

Feng,

Ruan

et al. 2023

Buildings

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An assembled floor system is a main step in the industrialization of construction in civil engineering, where the stiffness and anti-crack properties under designed loads and its self-weight are the main concerns. This paper presents a new type of assembled integral composite floor system, which is composed of precast ribbed bottom slab, lightweight infills, cast-in-situ upper slab and joints. Through the couplers for squeezing and splicing of longitudinal bars, shear keys and cast-in-situ joints between the precast panels and cast-in-situ upper part, the whole hollow floor system could not only exhibit satisfactory mechanical performance, but also lower the self-weight and shorten the construction time. To study its flexural behaviors, a full-scale specimen sized 9.2 m × 9.2 m was designed and tested under static area load. With the load increased to the designed loads of Chinese design code GB50010-2010, mechanical performance (i.e., crack distribution, deformation and stress distribution) were analyzed. To further study its load-carrying capacity and working mechanism, an effective finite element model was established in ABAQUS and compared with experimental and simulation results. It was found that the deflection of the floor under the normal service load and the crack width met the needs of normal use, and the finite element model could serve as a reliable method for the load-carrying capacity calculation.

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Design Analysis and Experimental Behavior of Precast Concrete Double-Tee Girders Prestressed with Carbonfiber-Reinforced Polymer Strands

Abstract: Design analysis and experimental behavior of precast concrete double-tee girders prestressed with carbon-fiber-reinforced polymer strands.

Cited by 20 publications

References 12 publications

Life-Cycle Cost and Life-Cycle Assessment Analysis at the Design Stage of a Fiber-Reinforced Polymer-Reinforced Concrete Bridge in Florida

Life-Cycle Cost and Life-Cycle Assessment Analysis at the Design Stage of a Fiber-Reinforced Polymer-Reinforced Concrete Bridge in Florida

Theoretical Model for the Shear Strength of Prestressed Concrete Beams with FRP Tendons

Experimental and Numerical Study on Flexural Behavior of a Full-Scale Assembled Integral Two-Way Multi-Ribbed Composite Floor System

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