FRP-Balsa Composite Sandwich Bridge Deck with Complex Core Assembly
- 1 December 2013
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Composites for Construction
Abstract
The aim of this work was to investigate to what extent the performance of a glass fiber–reinforced polymer (GFRP) sandwich slab-bridge with a uniform high-density balsa core could be improved in terms of structural efficiency and weight by using a more complex core assembly. This core consisted of high-density and low-density balsa and a fiber-reinforced polymer (FRP) arch inserted into the balsa high/low density interface. Quasi-static load-bearing experiments on sandwich arch-beams with complex core assemblies under symmetric four-point and asymmetric three-point loading were performed. The FRP arch reduced the force in the upper face sheet in the mid-span region and thus prevented compression failure of the latter, which led to a higher ultimate load. It also contributed to the shear resistance by up to 20% for symmetric loading. The best overall performance in terms of structural efficiency (stiffness and resistance) and weight resulted from a core configuration with a GFRP arch between an upp...Keywords
This publication has 15 references indexed in Scilit:
- Simple stiffness tailoring of balsa sandwich core materialComposites Science and Technology, 2011
- Field Issues Associated with the Use of Fiber-Reinforced Polymer Composite Bridge Decks and Superstructures in Harsh EnvironmentsStructural Engineering International, 2010
- The static behavior of a modular foam-filled GFRP bridge deck with a strong web-flange jointComposite Structures, 2007
- Flexural behavior of a hybrid FRP and lightweight concrete sandwich bridge deckComposites Part A: Applied Science and Manufacturing, 2007
- A novel method for materials selection in mechanical design: Combination of non-linear normalization and a modified digital logic methodMaterials & Design (1980-2015), 2007
- Plate bending behavior of a pultruded GFRP bridge deck systemComposite Structures, 2004
- Experimental evaluation of a balsa sandwich core with improved shear propertiesComposites Science and Technology, 2004
- Flexural behavior of sandwich beams fabricated by vacuum-assisted resin transfer moldingComposite Structures, 2003
- Recent all‐composite and hybrid fibre‐reinforced polymer bridges and buildingsProgress in Structural Engineering and Materials, 2001
- Structural testing of DARPA/BIR composite army bridge treadwayComposite Structures, 1999