The difference of sample preparation methods will directly lead to the difference of the structure of the sample, and the mechanical response characteristics under external load will be different. Based on the conventional tests such as particle analysis, specific gravity, critical moisture content, and consolidation test of undisturbed loess from Xi’an, this paper focuses on the static triaxial consolidated drained shear and consolidated undrained shear tests on undisturbed and remolded loess. The results show that: (1) the structure has an obvious influence on the stress-strain relationship of the sample, the stress-strain curve of the undisturbed sample is a strain softening curve, and the stress-strain curve of the remolded sample is a weak strain hardening curve; (2) under the same loading conditions, the triaxial shear strength of the undisturbed soil is significantly higher than that of the remolded soil; (3) the change rule of the consolidation ratio of undisturbed and remolded samples is basically the same, but the final consolidation ratio of remolded soil is greater than that of undisturbed soil.
In order to interpret the design wisdom of traditional dwellings in Kaifeng from a quantitative point of view, computational fluid dynamics technology is used to simulate the wind environment of traditional dwelling in Kaifeng in winter and summer. Parametric studies of three important architectural design elements on the traditional dwelling is quantitatively conducted. The quantitative design strategies for the traditional dwelling conforming to outdoor wind environment is obtained, which can be used to help local architects better understanding the traditional architectural wisdom and to guide design practice wisely in Kaifeng.
Thin-shell dome structures are conventionally built with concrete. However, the building process is time-consuming and of high labor cost. Composite Structural Insulation Panels (CSIPs) have recently been regarded to be suitable for large-span civil structures, in terms of its light weight, easy processing, and mass production. Hence, this paper explores the feasibility of CSIPs domes applied in large-span dome structures. Compared with the performance of thin-shell concrete domes, the stiffness, strength, and stability of CSIPs domes are studied by means of refined finite element analysis. Results demonstrate CSIPs dome possesses good dynamic performance, bears larger nonlinear loads, and even copes with stress loads under earthquakes. Moreover, the stiffness should be handled in the onsite applications to fulfil the safety requirements.
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