In this study, the complex behavior of steel encased reinforced concrete (SRC) composite beam–columns in biaxial bending is predicted by multilayer perceptron neural network. For this purpose, the previously proposed nonlinear analysis model, mixed beam-column formulation, is verified with biaxial bending test results. Then a large set of benchmark frames is provided and P-Mx-My triaxial ...

The paper describes a local model of concrete on the basis Karagozian & Case (K&C) approach that is successfully used for computed description behavior and reinforced constructions under dynamic loadings. A modified option K&C presented aiming at expansion functional capabilities providing details its computer realization, which scarcely described in publications. Basic ratios are p...

The mechanical properties of dewatered, anaerobically digested sewage sludge were determined from soil laboratory tests. The sludge material is largely composed of organic clay sized-particles, a sizable fraction of which is in an active state of biological digestion which can continue over many years under field conditions. Moderately digested sludge material was found to have a typical specif...

inspecting the behavior of the rockfill materials is of significant importance in analysis of rockfill dams. since the dimensions of grains in such materials are greater than the conventional sizes suitable for soil mechanics tests, it is necessary to experimentally study them in specific large-scale apparatuses. in this research, the behavior of rockfill materials in two large rockfill dams co...

According to the damage evolution model of rock mass under stress-seepage coupling effect, representative element theory is employed describe change law mesostructure. Based on elasticity and Weibull distribution, statistical constitutive finite numerical algorithm are established, by adopting COMSOL Multiphysics software MATLAB program. Besides, validity verified triaxial compression test. hyd...

In this study, the elastic modulus of cemented sand and gravel (CSG) dam its dependence on confining pressure were clarified by performing triaxial compression tests pressuremeter tests. The results these material verified a reproduction analysis dynamic behavior Apporo Dam during an actual earthquake. By analyzing 30 seismic records dam, characteristics clarified. New findings obtained regardi...

We present a Data-Driven framework for multiscale mechanical analysis of materials. The proposed relies on the formulation in mechanics (Kirchdoerfer and Ortiz 2016), with material data being directly extracted from lower-scale computations. Particular emphasis is placed two key elements: parametrization history, optimal sampling state space. demonstrate an application prediction behavior sand,...