Abstract: The philosophy currently adopted by AASHTO Bridge Design Specifications (BDS) is based on considering uncertainties inherent in the structural design process by proposing load and resistance factors. Factors used in the ...

Abstract: Design factors in load and resistance factor design (LRFD) codes are determined using structural reliability theory to account for the uncertainties in loads and resistance. The calibration of load factors for strength ...

Abstract: Strengthening-by-stiffening (SBS) is a technique for enhancing the shear performance of buckling-prone webs of steel beams by bonding glass fiber–reinforced polymer (GFRP) stiffeners. This paper focuses on changes in load ...

Abstract: Restoring the capacity of deficient structural members to meet original design requirements or new higher demands is common. For that purpose, research efforts to use composite materials in retrofitting steel structures ...

Abstract: Nondestructive testing (NDT) methods for identifying stress levels in materials mostly rely on the theory of acoustoelasticity. However, the sensitivity and the accuracy of acoustoelasticity are affected by several factors ...

Abstract: This paper presents a detailed investigation of warping-related stresses in 18 composite steel-concrete box girder bridges. The bridge designs were adapted from blueprints of existing bridges in the state of Florida and ...

Abstract: This paper reports on a survey effort of damaged bridges conducted by the writers in the aftermath of Hurricane Katrina of August 2005. As with Hurricane Ivan in 2004, low-lying coastal bridges suffered severe damage due ...

Abstract: Access hatches (holes) in curved-box-girder bridges are usually provided in the bottom flange immediately before or after an expansion joint. If additional access hatches are required after the bridge is built, they must ...

Abstract: Many bridges are constructed in groups of simple spans. This construction system requires the use of deck (expansion) joints over piers, leading to numerous problems that are costly to maintain or repair. The use of jointless ...