Abstract This analytical note shall provide a contribution to the understanding of general principles in Mechanics (symmetric circular) masonry arches. Within mainstream previous research work by authors (and competent framing dedicated literature), devoted investigate classical structural optimization problem leading least-thickness condition under self-weight (“Couplet-Heyman problem”), and r...

study on the seismic behavior of piled rafts and pile groups while the same amount of construction material and excavation is used in their construction, are the main objective of this research. the process where the raft interaction with soil can affect the seismic response and stress distribution is also discussed in the current study. by means, abaqus software was applied for the finite elem...

An analysis of fault-related fold structures and the focal mechanisms of large earthquakes reveals that the maximum horizontal stress is oriented sub-perpendicular to the intracontinental strike-slip Kunlun Fault, which triggered the 1997 Mw 7.6 Manyi and 2001 Mw 7.8 Kunlun earthquakes upon the northern Tibetan Plateau. Based on seismic inversion results and in situ measurements of stress perfo...

Three subsequent Tertiary paleostress fields that are deduced from fault-slip data for the eastern part of the Tajo Basin are analyzed by finite-element studies. The modelling results show that maximum horizontal stresses (SHmax) are mainly controlled by the geometry of the model limits and the boundary conditions applied. The models are used to test two hypotheses on the origin of the Altomira...

We study the dynamics of a disease under administration of a vaccine and antiviral drug, where the disease transmits directly from the parents to the offspring (vertical transmission) and also through contact with infective individuals (horizontal transmission). While vaccination to those susceptible reduces the horizontal transmission, administration of the antiviral drug to infected individua...

This study examines the relationship between shear force and horizontal relative displacement of Lshape shear connector by means of beam type test method. An equation for maximum shear force of the specimen which takes into account the effects of size of the shear connector and the concrete strength was proposed. It was found that shear force-horizontal relative displacement relationship can be...

In this research a comprehensive finite element program was developed in order to carry out an elasto perfectly plastic analysis of geogrid reinforcement of a model pavement. Qualitative agreement is seen between the numerical results and experiment. The results indicate the influence of geogrid in reduction of vertical deformation of pavements. It is also seen that for strong subgrade, the opt...