Design of Continuously Reinforced Concrete Pavements Using Glass Fiber Reinforced Pol
Current time: 12-11-2018, 06:50 AM
Users browsing this thread: 1 Guest(s)
Author: ir_71
Last Post: ir_71
Replies 0
Views 1358

Design of Continuously Reinforced Concrete Pavements Using Glass Fiber Reinforced Pol
#1
Design of Continuously Reinforced Concrete Pavements Using Glass Fiber Reinforced Polymer Rebars

Author: Jeong-Hoon Choi and Roger H. L. Chen, | Size: 1.19 MB | Format: PDF | Publisher: HFWA | Year: 2005 | pages: 81

[Image: 37261340856399458790.jpg]


[Image: info.png]

This is Task 3: Continuously Reinforced Concrete Pavement. The corrosion resistance characteristics of glass fiber reinforced polymer (GFRP) rebars make them a promising substitute for conventional steel reinforcing rebars in continuously reinforced concrete pavements (CRCPs). Studies are conducted on the effect of using GFRP rebars as reinforcement in CRCP on concrete stress development, which is directly related to the concrete crack formation that is inevitable in CRCP. Under restrained conditions, concrete volume change because of shrinkage and temperature variations is known to cause early- age cracks in CRCP. In this study, an analytical model has been developed to simulate the shrinkage and thermal stress distributions in concrete due to the restraint provided by GFRP rebars in comparison with the stresses induced by steel rebars. The results show that the stress level in concrete is reduced with GFRP rebars because of a low Young’s modulus of GFRP. In addition, the analytical model has been used to estimate concrete strain variation in reinforced concrete slabs because of changes in concrete volume, and the results were compared with the experimental observation. Finite element (FE) methods are also developed to predict the stress distribution and crack width in the GFRP-reinforced CRCP section that is subjected to the concrete volume changes under various CRCP design considerations, such as the coefficient of thermal expansion (CTE) of concrete, the friction from the pavement's subbase, and the bond-slip between concrete and reinforcement. Based on the results from the FE simulation along with the mechanistic analysis, a series of feasible designs of the GFRP-reinforced CRCP is proposed. The stress levels in the GFRP reinforcement, the crack widths, and the crack spacings of the proposed pavements are shown to be within the allowable design requirements.

[Image: Download.png]
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:

http://forum.civilea.com/thread-27464.html
***************************************


The expert doesn't think, the expert knows.
[-] The following 8 users say Thank You to ir_71 for this post:
  • kowheng, usman, cace-01, blaze, Dell_Brett, pedzaquino, roaming79, Grunf
Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
Experiment and Analysis on X-Shaped Reinforced Concrete Joint in Diagrid Structures asim99 1 1,744 04-20-2018, 06:19 PM
Last Post: munycamsec
Strength and Drift Capacity of GFRP- Reinforced Concrete Shear Walls TAFATNEB 0 1,119 03-16-2016, 10:41 AM
Last Post: TAFATNEB
Seismic evaluation of a 56-storey residential reinforced concrete high-rise building anfaga 3 2,104 02-10-2016, 03:49 PM
Last Post: BennyP
Design Considerations for Shear Bolts in Punching Shear Retrofit of Reinforced Concre yakwetu 1 2,212 07-08-2015, 09:02 AM
Last Post: PinkPant
BEHAVIOR OF FIBER-REINFORCED POLYMER (FRP) COMPOSITE PILES UNDER VERTICAL LOADS ir_71 1 1,872 06-01-2015, 06:11 PM
Last Post: ir_71



Users browsing this thread: 1 Guest(s)