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.
Results
Showing 1 to 20 of 72 for “"GFRP"”.
-
Strength Degradation of Gfrp Bars
… degradation of Glass Fiber Reinforced Polymer (GFRP) bars at high temperature and alkalinity and determine if an Arrhenius type relationship can be used as a means of projecting life. The work done includes a thorough literature review, experiments and development of strength prediction models. …
-
Evaluation of GFRP framing connections
… the connection as simply supported in a GFRP bonded-bolted framing angle configuration. To achieve this, nine framing angle connection tests were performed. The assumption was found to be valid for the 2 bolt bonded, the 2 bolt unbonded, and the 3 bolt unbonded framing angle connections …
-
GFRP reinforced concrete : environmental and movement characteristics
… application of glass fibre reinforced plastic (GFRP) reinforcement faces some challenges such as lack of design codes, brittle behaviour of FRP resulting in reduced structural ductility, low bond capacity to concrete, and lack of knowledge of durability issues and long-term behaviour of concrete …
-
Behaviour of continuous concrete deep beams reinforced with GFRP bars
… of glass fibre reinforced polymer bars (GFRP) reinforced continuous concrete deep beams. For this purpose, experimental, analytical and numerical studies were conducted. Nine continuous concrete deep beams reinforced with GFRP bars and one specimen reinforced with steel bars were …
-
Condition assessment of GFRP-retrofitted concrete cylinders using electromagnetic waves
… region of glass fiber reinforced polymer (GFRP)-retrofitted concrete cylinders through the use of far-field radar measurements (electromagnetic or EM waves). In this development, two far-field monostatic ISAR (inverse synthetic aperture radar) measurement schemes are identified for …
-
Blast Performance of Hybrid GFRP and Steel Reinforced Concrete Beams
… arrangements of glass fiber reinforced polymer (GFRP) and conventional mild steel reinforcement on the blast performance of reinforced concrete beams. Seven large-scale reinforced concrete beams with different combinations of tensile steel and GFRP rebar were designed, constructed, and tested …
-
Reliability-based durability assessment of GFRP bars for reinforced concrete
… durability of glass fiber reinforced polymer (GFRP) reinforced concrete designed for flexure. The results of this simulation can be used to determine appropriate flexural strength reduction factors. Prior to conducting the simulation, long-term GFRP tensile strength values needed to be …
-
Interface durability of externally bonded GFRP to normal and high-performance concrete
Externally bonded glass fiber-reinforced polymer (GFRP) fabrics are being increasingly used for seismic retrofit and rehabilitation of concrete structures. Glass fibers exhibit high strength to weight ratio and low cost in comparison to carbon and aramid fibers. However, previous studies have shown …
-
Developing new multiscale models for the numerical simulation of Pultruded GFRP Structural Elements
… pultruded Glass Fibre Reinforced Polymers (GFRP). It highlights their use as load-bearing structural elements and evaluates various numerical methods, including Finite Element Method (FEM), eXtended Finite Element Method (XFEM), Virtual Crack Closure Technique (VCCT), Cohesive Zone Modelling …
-
Bending behavior of concrete T-beams reinforced with glass fiber-reinforced polymer (GFRP) bars
Concrete slabs are integrally cast with girders or stringers (stiffening system) resulting in floor slabs, bridge decks, footers, retaining structures and others. A portion of slab between a stiffening system acts as flange and bends in unison with the stiffening system, i.e., classic T-beam …
-
Shear Strength and Strength Degradation of Concrete Bridge Decks with GFRP Top Mat Reinforcement
… the shear strength of concrete bridge decks with GFRP top-mat reinforcement. Several models currently exist to predict the shear strength during the design process; however, previous research at Virginia Tech indicates that the existing equations are overly conservative. For this research, a …
-
FRP-Based High-Performance Building Envelopes - An investigation on the environmental performance of GFRP sandwich panels
… and costly. Glass fibre reinforced polymer (GFRP) sandwich panels consisting of GFRP laminate face sheet and adhered to a polymer foam core can potentially provide an integrated, loadbearing and lightweight solution for geometrically complex building envelopes. One of the barriers to their …
-
Behavior of RC hollow circular columns reinforced with GFRP bars and spirals under concentric and eccentric loads
L’un des problèmes les plus graves auxquels sont confrontées les structures en béton armé d’acier est la détérioration des éléments structuraux causée par l’aggravation des problèmes de corrosion de l’acier, en particulier dans les environnements difficiles tels que les structures marines, les …
-
Modelling of the degradation of mechanical properties of glass fiber reinforced composites (GFRP) due to environmental aging
The purpose of this Dissertation is to develop a methodology for estimating the lifetime of structures made out of glass fiber reinforced composite operating under conditions of hydrothermal ageing in the presence of mechanical loading and the application of this methodology to the air-conditioning …
-
Strengthening historic covered bridges to carry modern traffic
… bridges using Glass Fiber Reinforced Polymer (GFRP) composite materials. The strengthening methodologies developed during this research project were designed to conform to the Secretary of the Interior's Standards for the Treatment of Historic Properties. More specifically, tension and bending …
-
Performance of a Bridge Deck with Glass Fiber Reinforced Polymer (GFRP) Bars as the Top Mat of Reinforcement
… investigate the effectiveness and durability of GFRP bars as reinforcement for concrete decks. Today's rapid bridge deck deterioration is calling for a replacement for steel reinforcement. The advantages of GFRP such as its high tensile strength, light weight, and resistance to corrosion make it …
-
Development of Innovative Hybrid Steel-Free Multi-Girder Bridge Deck System
… of longitudinal Glass Fibre Reinforced Polymer (GFRP) hollow box beam girders reinforced with Carbon FRP (CFRP) sheets on the bottom tensile face. An integrated cast-in-place Ultra-High Performance Concrete (UHPC) slab was placed overtop of the assembled girder system, with a two-part bond system …
-
A multi-objective optimisation of a stiffened GFRP sandwich panel with a bilayer core structure, through finite element analysis
Glass fibre reinforced polymer (GFRP) sandwich panels, known for their high strength-to-weight ratio, are increasingly utilized in weight-sensitive civil engineering applications. This dissertation focused on optimizing a stiffened, bilayer GFRP sandwich panel as a monolithic slab within domestic …
-
Valorisation of wind turbine blades into concrete : a contribution towards a more sustainable approach
… blades (DWTB) glass fiber-reinforced polymer (GFRP) materials - termed throughout this thesis as DWTB-GFRP. To this end, three distinct experimental phases have been carefully designed. The first phase includes an extensive material characterization and investigation of the influence of …
-
Field Test of a Bridge Deck with Glass Fiber Reinforced Polymer Bars as the Top Mat of Reinforcement
… to perform live load tests on a bridge deck with GFRP reinforcement in the field under service conditions. The strains and deflections in the span reinforced with GFRP in the top mat were recorded under a series of truck crossings, and these were compared to the span reinforced with all steel bars …
Page 1 of 4