Field Implementation of Fiber-reinforced Polymer (FRP) Deck Panels

Field Implementation of Fiber-reinforced Polymer (FRP) Deck Panels
Author: Jeffery S. Volz
Publisher:
Total Pages: 74
Release: 2017
Genre: Bridges
ISBN:

Although still in their infancy, fiber-reinforced polymer (FRP) bridges have shown great promise in eliminating corrosion concerns and meeting (or exceeding) FHWA's goal of 100-year life spans for bridges. While FRP bridges are cost-effective in terms of life cycle analyses, the combination of higher first costs and limited state DOT budgets has restricted their use. This research study examined a prototype FRP deck panel that incorporated polyurethane foam in an attempt to reduce the initial costs. The objective of this research was to develop the design methodology and construction details necessary to implement the prototype FRP deck panel on an actual bridge, addressing issues such as panel-to-panel connections, panel-to-girder connections, bridge skew, roadway crown, overlay materials, bridge guardrail attachment, and deck drainage. The full scale, prototype FRP deck panels performed exceptionally during all phases of testing. In general, results of the study indicated that the panels significantly exceeded the code required design forces in all instances. In flexure, shear and bearing, the average failure load exceeded the AASHTO Design Truck factored wheel load by nearly three times. Even more importantly, the panels behaved linearly-elastically through out the full range of loading and possessed significant post-buckling strength. In terms of construction details, the panel-to-panel connection indicated 100% load transfer up to a load of over twice the AASHTO Design Truck factored wheel load and, in fact, the panel failed due to localized bearing prior to any failure of the joint. Furthermore, testing of the guardrail-to-panel connection for the prototype FRP deck panels indicated that without any modifications, the panels satisfy the AASHTO TL-2 guardrail requirements. To attain an AASHTO TL- or TL-4 level, the panels would require localized reinforcement at the guardrail post connection points. In terms of potential overlay materials, epoxy-based polymer concretes offered the greatest bond strengths and thermal compatibility with the FRP deck. Finally, it appears that existing FRP design equations can reasonably predict the response and behavior of the VARTM-manufactured, prototype FRP bridge deck panels. The equations correctly predicted a flexural failure due to local buckling of the compression flange and a bearing failure due to local buckling of the webs beneath the concentrated load.

Fiber Reinforced Polymer (FRP) Composites for Infrastructure Applications

Fiber Reinforced Polymer (FRP) Composites for Infrastructure Applications
Author: Ravi Jain
Publisher: Springer Science & Business Media
Total Pages: 285
Release: 2012-01-02
Genre: Science
ISBN: 9400723571

This book examines current issues of fiber reinforced polymer (FRP) composites in civil infrastructure. The contents of this book are divided into two parts. The first part engages topics related to durability and service life of FRP composites and how they contribute to sustainability. The second part highlights implementation and applications of the FRP composites with an emphasis on bridge structures. An introductory chapter provides an overview of FRP composites and its role in a sustainable built environment highlighting the issues of durability and service life followed by a current review of sustainability in infrastructure design.​

Field Applications of FRP Reinforcement

Field Applications of FRP Reinforcement
Author: S. H. Rizkalla
Publisher:
Total Pages: 452
Release: 2003
Genre: Technology & Engineering
ISBN:

.".. papers presented at the ACI Fall 2003 Convention, in Boston, Massachusetts"--P. iii.

Developments in fiber-reinforced polymer (FRP) composites for civil engineering

Developments in fiber-reinforced polymer (FRP) composites for civil engineering
Author: N.U. Uddin
Publisher: Elsevier Inc. Chapters
Total Pages: 42
Release: 2013-05-15
Genre: Technology & Engineering
ISBN: 0128087749

The chapter begins by discussing a new type of sandwich panel called composite structural insulated panels (CSIPs) intended to replace the traditional SIPs that are made of wood-based materials. A detailed analytical modeling procedure is presented in order to determine the global buckling, interfacial tensile stress at facesheet/core debonding, critical wrinkling stress at facesheet/core debonding, equivalent stiffness, and deflection for CSIPs. The proposed models were validated using experimental results that have been conducted on full-scale CSIP walls and floor panels. In order to be used as a hazard-resistant material, a detailed section was presented to show the resistance of CSIP elements to the different types of hazard effects, including impact loading, floodwater effect, fire effect, and windstorm loading.

Developments in fiber-reinforced polymer (FRP) composites for civil engineering

Developments in fiber-reinforced polymer (FRP) composites for civil engineering
Author: R. Liang
Publisher: Elsevier Inc. Chapters
Total Pages: 68
Release: 2013-05-15
Genre: Technology & Engineering
ISBN: 012808779X

This chapter presents dozens of select environmental engineering applications of fiber-reinforced polymer (FRP) composite materials with emphasis on their environmental benefits, followed by discussions on durability of composites. Significance of design codes and specifications in promoting and advancing the applications of FRP composites is addressed. With ever increasing attention toward a sustainable built environment, FRP composites have potential to be selected as a material of choice because of the performance and design advantages of FRPs.

Developments in Fiber-Reinforced Polymer (FRP) Composites for Civil Engineering

Developments in Fiber-Reinforced Polymer (FRP) Composites for Civil Engineering
Author: Nasim Uddin
Publisher: Elsevier
Total Pages: 565
Release: 2013-05-15
Genre: Technology & Engineering
ISBN: 0857098950

The use of fiber-reinforced polymer (FRP) composite materials has had a dramatic impact on civil engineering techniques over the past three decades. FRPs are an ideal material for structural applications where high strength-to-weight and stiffness-to-weight ratios are required. Developments in fiber-reinforced polymer (FRP) composites for civil engineering outlines the latest developments in fiber-reinforced polymer (FRP) composites and their applications in civil engineering. Part one outlines the general developments of fiber-reinforced polymer (FRP) use, reviewing recent advancements in the design and processing techniques of composite materials. Part two outlines particular types of fiber-reinforced polymers and covers their use in a wide range of civil engineering and structural applications, including their use in disaster-resistant buildings, strengthening steel structures and bridge superstructures. With its distinguished editor and international team of contributors, Developments in fiber-reinforced polymer (FRP) composites for civil engineering is an essential text for researchers and engineers in the field of civil engineering and industries such as bridge and building construction. Outlines the latest developments in fiber-reinforced polymer composites and their applications in civil engineering Reviews recent advancements in the design and processing techniques of composite materials Covers the use of particular types of fiber-reinforced polymers in a wide range of civil engineering and structural applications

Polyurethane Foam Infill for Fiber Reinforced Polymer (FRP) Bridge Deck Panels: an Evaluation of Core Alternatives Using Small Scale Experimental Testing

Polyurethane Foam Infill for Fiber Reinforced Polymer (FRP) Bridge Deck Panels: an Evaluation of Core Alternatives Using Small Scale Experimental Testing
Author: Matthew Scott Hopkins
Publisher:
Total Pages: 275
Release: 2014
Genre: Bridges
ISBN:

"Fiber reinforced polymer (FRP) decking is a concept that has been explored in recent decades as one solution to the performance issues of conventional concrete bridge decking. Many sandwich panel designs made of glass reinforced polyester or vinyl ester resin have been well developed, and manufactured using filament winding, hand lay-up, and extrusion methods. The major benefits of these panels was their light weight, corrosion resistance, fatigue performance, and potential for rapid field assembly. However, high initial costs coupled with small state budgets have kept them from main stream adoption. A viable alternative, is a foam/reinforced foam core sandwich panel made of polyurethane materials and glass fibers that is manufactured using the vacuum assisted resin transfer molding (VARTM) process. These type of panels could potentially decrease initial expenses, manufacturing difficulties, and possibly reduce weight further while retaining the benefits provided by previously explored FRP panels. The primary objective of this thesis is to evaluate three potential core alternatives. Type 1 consisted of a rigid polyurethane core, Type 2 consisted of a flexible polyurethane foam core reinforced by a grid work of resin infused glass fibers, and the Type 3 core consisted of trapezoidal blocks of flexible polyurethane foam reinforced with resin infused glass fiber shear layers. Four types of small scale experimental testing were conducted in this research; flatwise compression and tension testing, three point flexural testing, and four point flexural testing. The results showed that both the Type 1 and 2 cores were very weak and flexible making their implementation in bridge deck panels less practical. The Type 3 core was the stiffest and strongest core configuration making in the most practical for implementation in bridge deck panels"--Abstract, page iii.

Application of Fiber Reinforced Polymer Composites to the Highway Infrastructure

Application of Fiber Reinforced Polymer Composites to the Highway Infrastructure
Author: Dennis R. Mertz
Publisher: Transportation Research Board
Total Pages: 88
Release: 2003
Genre: Political Science
ISBN: 0309087694

Rising awareness of and increased attention to sexual harassment has resulted in momentum to implement sexual harassment prevention efforts in higher education institutions. Work on preventing sexual harassment is an area that has recently garnered a lot of attention, especially around education and programs that go beyond the standard anti-sexual harassment trainings often used to comply with legal requirements. On April 20-21, 2021, the National Academies of Sciences, Engineering, and Medicine hosted the workshop Developing Evaluation Metrics for Sexual Harassment Prevention Efforts. The workshop explored approaches and strategies for evaluating and measuring the effectiveness of sexual harassment interventions being implemented at higher education institutions and research and training sites, in order to assist institutions in transforming promising ideas into evidence-based best practices. Workshop participants also addressed methods, metrics, and measures that could be used to evaluate sexual harassment prevention efforts that lead to change in the organizational climate and culture and/or a change in behavior among community members. This publication summarizes the presentations and discussion of the workshop.

Advanced Fibre-Reinforced Polymer (FRP) Composites for Structural Applications

Advanced Fibre-Reinforced Polymer (FRP) Composites for Structural Applications
Author: Jiping Bai
Publisher: Woodhead Publishing
Total Pages: 844
Release: 2022-12-05
Genre: Technology & Engineering
ISBN: 0128203471

Advanced Fibre-reinforced Polymer (FRP) Composites for Structural Applications, Second Edition provides updates on new research that has been carried out on the use of FRP composites for structural applications. These include the further development of advanced FRP composites materials that achieve lighter and stronger FRP composites, how to enhance FRP integrated behavior through matrix modification, along with information on pretension treatments and intelligence technology. The development of new technology such as automated manufacturing and processing of fiber-reinforced polymer (FRP) composites have played a significant role in optimizing fabrication processing and matrix formation. In this new edition, all chapters have been brought fully up-to-date to take on the key aspects mentioned above. The book's chapters cover all areas relevant to advanced FRP composites, from the material itself, its manufacturing, properties, testing and applications in structural and civil engineering. Applications span from civil engineering, to buildings and the energy industry. Covers all areas relevant to advanced FRP composites, from the material itself, its manufacturing, properties, testing and applications in structural engineering Features new manufacturing techniques, such as automated fiber placement and 3D printing of composites Includes various applications, such as prestressed-FRP, FRP made of short fibers, continuous structural health monitoring using advanced optical fiber Bragg grating (FBG), durability of FRP-strengthened structures, and the application of carbon nano-tubes or platelets for enhancing durability of FRP-bonded structures

FRP Composite Structures

FRP Composite Structures
Author: Hota V.S. GangaRao
Publisher: CRC Press
Total Pages: 535
Release: 2021-10-27
Genre: Technology & Engineering
ISBN: 1000461181

The use of fiber-reinforced polymer (FRP) composites in infrastructure systems has grown considerably in recent years because of the durability of composite materials. New constituent materials, manufacturing techniques, design approaches, and construction methods are being developed and introduced in practice by the FRP composites community to cost-effectively build FRP structural systems. FRP Composite Structures: Theory, Fundamentals, and Design brings clarity to the analysis and design of these FRP composite structural systems to advance the field implementation of structural systems with enhanced durability and reduced maintenance costs. It develops simplified mathematical models representing the behavior of beams and plates under static loads, after introducing generalized Hooke’s Law for materials with anisotropic, orthotropic, transversely isotropic, and isotropic properties. Subsequently, the simplified models coupled with design methods including FRP composite material degradation factors are introduced by solving a wide range of practical design problems. This book: Explores practical and novel infrastructure designs and implementations Uses contemporary codes recently approved Includes FRP case studies from around the world Ensures readers fully understand the basic mechanics of composite materials before involving large-scale number crunching Details several advanced topics including aging of FRPs, typical failures of structures including joints, and design simplifications without loss of accuracy and emphasis on failure modes Features end of chapter problems and solved examples throughout. This textbook is aimed at advanced undergraduate and graduate students and industry professionals focused on the analysis and design of FRP composite structural members. It features PowerPoint lecture slides and a solutions manual for adopting professors.