CONCLUSIONS AND RECOMENDATIONS

63 CHAPTER V CONCLUSIONS AND RECOMENDATIONS 5.1: Introduction This thesis has two primary objectives. The first is to quantify material and bond properties, and determine their effect on the design of a bridge deck. The second objective is to compare the direct pullout method with the beam end bond test method, and determine if there is a significant difference in maximum bond stress. Recommendations, and conclusions are given in each section, with final overall conclusive remarks given at the end of the chapter 5.2: Material and Bond Properties and Their Effect on Design 5.2.1: Introduction Several GFRP material properties were investigated, which have significant impacts on the design of a bridge deck with GFRP bars. The properties most closely evaluated were the ultimate tensile strength, the modulus of elasticity, the peak bond stress, and bond behavior of the GFRP bars. These properties are discussed and evaluated, and recommendations presented individually. 5.2.2: Ultimate Tensile Strength The ultimate tensile strength was determined for each tensile test performed. This data was averaged by bar size and manufacturer. The tested average tensile strength, as well as the standard deviation, the manufacturer’s published tensile strength data, the guaranteed tensile strength, and the design tensile strength are shown in Table 5.1.

CONCLUSIONS AND RECOMENDATIONS

Documents

serviceability

durability

tensile strength

design

bridge deck