Coupling beams are structural elements which connect shear walls to improve the lateral stiffness and allow transfer forces, while possessing sufficient ductility dissipate energy produced due displacement. An error in construction of a 16-story buildings resulted that only bottom layer longitudinal reinforcement bars all coupled anchored into walls, upper cut before walls. The reconstruction b...

Rock engineering is highly susceptible to cyclic loads resulting from shale gas exploitation; it very important study the failure mechanism of underground rock mass under load. To investigate energy dissipation and damage evolution characteristics triaxial loading unloading conditions, a series incrementally tests different confining pressures (10 MPa, 15 20 30 MPa) were carried out. The variat...

This work is a numerical investigation of the effect thermally induced volumetric collapse normally consolidated clays on performance energy piles. A series coupled thermo-hydro-mechanical Finite Element simulations were carried out using commercial software ABAQUS. These examined single free-head pile embedded in clay layer subjected to constant mechanical load and number heating/cooling cycle...

Infrared temperature-sensing techniques have the major advantages of virtually no interference of the sensor with the sensed phenomenon and fast inherent response. On the other hand, infrared temperature sensing, as a superficial measurement technique, does not indicate the specimen’s core temperatures, and hence a complementary thermal analysis is required. A thermal analysis of surface temper...

In this study the influence of tubule orientation on the strength of human dentin under static and cyclic loads was examined. Rectangular beams were sectioned from the coronal dentin of virgin extracted molars (N=83) and then loaded in quasi-static 4-point flexure or 4-point flexural fatigue to failure. The flexure strength, energy to fracture and fatigue strength were evaluated for specimens w...

a framework for development of constitutive models including damage progress, based on semi-micromechanical aspects of plasticity is proposed for concrete. the model uses sub-loading surface with multilaminate framework to provide kinematics and isotropic hardening/softening in the ascending/descending branches of loading and can be able to keep stress/stain paths histories for each plane separ...