Based on the design concept of earthquake-resilient structure, a new-type box-shaped steel piers with embedded energy-dissipating plates was proposed. Quasi-static tests 6 pier specimens under variable axial pressure and cyclic horizontal loading were carried out. By analyzing failure mode, load-displacement hysteretic curve, skeleton displacement ductility coefficient, stiffness degradation ch...

The aim of the present study was to verify the hypothesis that cavity design does not affect the strength of direct composite restorations as do material properties. Finite element modeling (FEM) and empirical testing were done for two cavity designs: a box shape (cube) and a concave shape (U). Two microhybrid composites were used to prepare the samples with the help of split stainless steel mo...

A theoretical framework is presented for the estimation of the physical parameters of a structure (i.e., mass, stiffness, and damping) from measured experimental data (i.e., input–output or output-only data). The framework considers two state-space models: a physics-based model derived from first principles (i.e., white-box model) and a data-driven mathematical model derived by subspace system ...

Acoustic emission (AE) testing was deployed on details of two large steel Interstate Highway bridges: one cantilever through-truss and one trapezoidal box girder bridge. Quantitative measurements of activity levels at known and suspected crack locations were made by monitoring AE under normal service loads (e.g., live traffic and wind). AE indications were used to direct application of radiogra...

In this paper, the finite element simulation software ABAQUS was used to study hysteretic performance of Q690 high-strength steel (HSS) and high-web box-section columns. The model established by solid elements, influence initial defects materials on specimen considered. hyteretic conducted analyzing comparing width-thickness ration flanges webs. results show that increase ratios webs will reduc...