Date of Award
Master of Science
Civil, Construction, and Environmental Engineering
Civil Engineerin g (Structural Engineering)
Throughout the year, seasonal and daily temperature fluctuations cause the materials within a bridge to shrink and swell, resulting in the expansion and contraction of the entire superstructure. If left unaccounted for, these movements result in structural damage to the bridge. Thus, implementing ways to safely accommodate this movement is a crucial part of ensuring a serviceable, long-term structure is designed and built. The most traditional approach to accommodating this movement involves the use of movement joints placed at the ends of the bridge deck. These movement joints are often fitted with a rubber device to prevent excess drainage from eroding key structural members underneath the deck. However, these movement joints create several additional issues, including a high risk for premature failure due to environmental factors. As a result, “moveable” jointless integral or semi-integral abutment, which directly connects the abutment to the bridge deck. In this case, the abutment rotates inward and outward with the deck’s expansion and contraction and moves the expansion joints farther away from the bridge deck, limiting the potential issues associated with movement joints.
Duffy, Conor, "Investigating serviceability issues related to thermal movement accommodation in bridges" (2020). Graduate Theses and Dissertations. 18121.