This paper deals with the performance and design of hybrid connections between steel columns RC beams by means shear-keys, through detailed nonlinear numerical assessments in which influence key geometric material parameters on ultimate behaviour is examined. The simulations employ concrete damage plasticity modelling procedures are validated against test results members. Extensive parametric i...

The asymmetric problem of rocking rotation of a circular rigid disk embedded in a finite depth of a transversely isotropic half-space is analytically addressed. The rigid disk is assumed to be in frictionless contact with the elastic half-space. By virtue of appropriate Green's functions, the mixed boundary value problem is written as a dual integral equation. Employing further mathematical tec...

Abstract Road traffic markings are made of glass beads embedded in paint. To analyze the effects glass-bead radius, embedment depth, correlated color temperature light sources, and incident angle on reflective performance beads, a numerical model is established using geometric optics method, effective conditions analyzed, calculation methods for optical power devised, non-standard planes calcul...

To investigate the bearing mechanism and efficiency of group anchors in sand, upward pulling tests model were carried out for different conditions sand density, anchor burial depth ratio, spacing. The results show that load-displacement relationships is similar to single anchors, both being nonlinear same relative density embedment ratio. load-carrying capacity not a simple superposition capaci...

An effective and versatile method for tube-length-specific functionalization of carbon nanotubes through a controllable embedment of vertically-aligned carbon nanotubes into polymer matrices is reported, which allows not only asymmetric functionalization of nanotube sidewalls, but also facile introduction of new properties (e.g. magnetic) onto the region-selectively functionalized carbon nanotu...

In steel fiber reinforced concrete, the interface is a very complex and weak structure. It because of layer between matrix that reinforcing toughening properties cannot be fully exerted. The bond performance core meso-mechanical concrete. To study its influence on mechanical three-phase finite element models pull-out are established based cohesive zone model unified phase-field theory by means ...

the safety of buried pipes under repeated load has been a challenging task in geotechnical engineering. in this paper artificial neural network and regression model for predicting the vertical deformation of high-density polyethylene (hdpe), small diameter flexible pipes buried in reinforced trenches, which were subjected to repeated loadings to simulate the heavy vehicle loads, are proposed. t...