Author : Mahesh Gajula Nagabhushanam
Publisher :
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.:/5 (1 download)
Book Synopsis The Effects of Temperature on Fiber Composite Bridge Decks by : Mahesh Gajula Nagabhushanam
Download or read book The Effects of Temperature on Fiber Composite Bridge Decks written by Mahesh Gajula Nagabhushanam and published by . This book was released on 2009 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study the fiber composite bridge decks were subjected to thermal gradients to obtain the temperature difference between the top and bottom surface of the decks and to determine the thermal properties of the deck. The fiber composite bridge decks were fabricated in sizes of 2 feet wide x 8 feet long x .5 feet deep and 4 feet wide x 8 feet long x .5 feet deep specimens by Kansas Structural Composites Inc. The project consisted of 3 specimens of size 2 feet in width x 8 feet in length x .5 feet in depth with ribs oriented along longitudinal direction, 3 specimens of size 2 feet in width x 8 feet in length x .5 feet in depth with ribs oriented along transverse direction and a specimen of size 4 feet in width x 8 feet in length x .5 feet in depth with ribs oriented along transverse direction. Two specimens with ribs oriented along longitudinal direction and two specimens with ribs oriented along transverse direction of size 2 feet in width x 8 feet in length x .5 feet in depth were subjected to temperature greater than 120 degrees F with unrestrained ends. Four tests were carried out on two specimens having ribs oriented along longitudinal direction and two specimens having ribs oriented along transverse direction with the shorter ends restrained. The top surface was exposed to constant temperature until the temperature and the strain linearize at the bottom surface of the fiber composite deck to obtain the difference in temperature between the top and bottom surface of the deck. The decks were restrained using a mechanical setup made up of fiber composite sections. A single specimen of size 4 feet in width x 8 feet in length x .5 feet in depth was tested for thermal loads greater than 120 degrees F with unrestrained ends. The strain readings were recorded using strain gage technology from Vishay Micro Measurements and the displacement was measured for specimens with restrained ends using cable extension displacement sensor at half span. A prototype of fiber composite deck was modeled using PRO-E and analyzed using ANSYS FEM software.