Papers by Author: Akenjiang Tuohuti

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Authors: Zheng Hua Xiao, Hong Jian Liao, Akenjiang Tuohuti, Bo Han
Abstract: A series of dynamic triaxial tests were performed to study a dynamic constitutive relationship of saturated remolded loess under cyclic loading. A new dynamic rational function constitutive model based on damping ratio was proposed. The model assumed the calculated damping ratio equaled to the measured damping ratio and the hysteresis curve was consisted by two curves accorded with rational function. This not only ensured that the theoretical hysteresis curve reflected the real energy dissipation of remolded loess but also retained the high calculated efficiency of this model. The hysteresis curve equation under constant amplitude symmetric loading was deduced and results of this model were verified by the tests.
Authors: Akenjiang Tuohuti, Guo Qing Qi, Dun Wang
Abstract: Three different kinds of abode wall and composite abode wall in thickness are calculated with elastic-plastic FEM. Lateral resistance capacities, crack shapes as well as ductility of abode wall,of composite wall are analyzed. Based on them, simplified formula is put forward for calculating the lateral resistance capacities of composites abode wall, which provides a basis for the design of composite abode wall. In addition, seismic effects of composites abode wall under different earthquake levels,i.e:frequent intensity, basic and rare intensity are estimated. It indicates that traditional abode wall with timber columns and beams can satisfy the criterion of rare earthquake for seismic zone 9. It also shows that the research can be used as the provision for the transformation and seismic reinforcement of traditional residential buildings in Xinjiang.
Authors: Zheng Hua Xiao, Bo Han, Akenjiang Tuohuti, Hong Jian Liao
Abstract: This paper is mainly concerned with the saturated-unsaturated seepage analysis of earth dams based on unsaturated soil theory and the stability analysis of earth dams based on conception of slices. At first, beginning basic seepage theory, thesis introduce the saturated-unsaturated and steady-unsteady seepage differential equation of porous media and the FEM regarding hydraulic pressure head as basic unknown quantity. Then considering the shear strength of unsaturated soil, the method of analysis of general limit equilibrium has been approved and it can be used in the analysis of the stability of saturated-unsaturated slopes. Through an example it is respectively discussed effects of seepage flow when water head is changed in earth dam and the effects of percolation in the stability of the earth dam slope. Some helpful conclusions are gained. This can be making the best of the tow methods and the results can be used in engineering for reference.
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