Abstract Bridges are among the most important transportation elements that may be damaged by earthquakes. An integral abutment bridge (IAB) is a linking superstructure directly to substructure. As soil piles, abutments, and superstructures act as combined system resist lateral loading on bridge, stiffness has major impact load distribution. This research attempts determine how structure paramet...

To reasonably analyze the bearing characteristics of curved beam bridge pile foundation under combined action vertical force (V) and torque (T) in expansive soil, a method determining Tu (limit torque) V is proposed. Considering effects ground heave after immersion, load transfer function at pile–soil interface with positive negative friction resistance established. The nonlinear solution singl...

In the recent years, non-connected piled raft foundation has been considered as an economical and practical deep foundation in the situation that high shear and concentrated loads may occur at the connection of the raft and pile head. This paper was presented an experimental study of a square foundation on the effects of parameters such as S/D, L/D and etc. in two cases of connected or non-conn...

a simplified approach for nonlinear analysis of the load-displacement response of a single pile and a pile group is presented using the load-transfer approach. a hyperbolic model is used to capture the relationship between unit skin friction and pile-soil relative displacement developed at the pile-soil interface and the load-displacement relationship developed at the pile end. as to the nonlin...

Bridges are a part of vital infrastructure, which should operate even after disaster to keep emergency services running. There have been numerous bridge failures during major past earthquakes due liquefaction. Among other categories failures, mid span collapse (without the failure abutments) pile supported bridges founded in liquefiable deposits still observed most recent earthquakes. This mech...