Based on the high-pile and high-pier bridge of Qianhuang Expressway, eigenvalue buckling analysis is carried out by establishing three-dimensional finite element models three different types types, corresponding structural nonlinear loads under initial pier deviations are calculated. The calculation results show that less than elastic loads. stability column continuous better simple supported b...

$top$-filters can be used to define $top$-convergence spaces in the lattice-valued context. Connections between $top$-convergence spaces and lattice-valued convergence spaces are given. Regularity of a $top$-convergence space has recently been defined and studied by Fang and Yue. An equivalent characterization is given in the present work in terms of convergence of closures of $top$-filters.  M...

In this study, stress and displacement functions of the three-dimensional theory of elasticity for homogeneous isotropic bodies are derived from first principles from the differential equations of equilibrium, the generalized stress – strain laws and the geometric relations of strain and displacement. It is found that the stress and displacement functions must be biharmonic functions. The deriv...

This paper discusses the basic mechanical properties of a newly proposed parallel link mechanism as three-dimensional seismic isolation system capable supporting large loads. Specifically, static restoring force characteristics entire mechanism, moment caused by spring force, and inclination top surface due to 3-dimensional displacement were analyzed. The results show that stable can be obtaine...

By analyzing the monitoring data of excavation foundation, maximum lateral displacement depth and top vertical retaining wall, column are studied. Research indicates that 3rd power polynomial curve can better fit change law deformation wall at each point；the fourth support demolition has great influence on wall. The third layer greatly increased After second is removed, to negative. gradually d...