Soil-structure interaction is interdisciplinary field which involves structural and geotechnical engineering. In the conventional non-interaction analysis of building frame structural designer assumed that columns are resting on unyielding support. Similarly, in foundation design, foundation settlements are calculated without considering the influence of the structural stiffness. Although, inte...

In this paper, an experimental and numerical study was adopted to investigate the effect geogrid soil reinforcement prestressing on the pressure settlement relation of sand bed supporting a strip foundation. The studied parameters include foundation depth and pre-stress ratio for the cases of one and two pre-stressed reinforcement layers. The study reflected that pre-stressing of soil reinforce...

The response of a bridge tower-pier system resting on elastic soil, with a sliding foundation obeying Coulomb's friction law, is studied. The stiffness and damping of the supporting soil is fully taken into account. The action of the suspension bridge cables is equivalent to a horizontal elastic restraint at the top of the tower. The differential equations of motion of the pier are formulated f...

The stiffness and damping of pile foundations are proposed, which vary with the ratio of shear modulus Gi / Go to indicate the nonlinear properties of soil. The range of Gi / Go is defined with different vibration intensities for applications, and a computer program DYNAN is available based on the boundary zone model with non-reflective interface. Two engineering cases are studied to illustrate...

In this study, the monotonic and cyclic behavior of an offshore wind turbine with a monopile foundation installed in sand layer were evaluated centrifuge. A simplified was modeled, lateral load applied to tower under displacement control. The loading test ultimate capacity bending moment profiles different levels. During loading, variations moment-rotation responses, stiffness, moments along pi...

Wind turbine structures can be susceptible to damage from earthquake loading due large overturning moments at the foundation level. As wind energy market expands seismically active parts of world, it becomes important evaluate seismic behaviour these structures. Especially, earthquake-induced liquefaction when farms are located on sites with marginal soil conditions such as loose, saturated san...

Characterizing the quasi-stiffness and work of lower extremity joints is critical for evaluating human locomotion and designing assistive devices such as prostheses and orthoses intended to emulate the biological behavior of human legs. This work aims to establish statistical models that allow us to predict the ankle quasi-stiffness and net mechanical work for adults walking on level ground. Du...