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The construction of new asphalt concrete pavement often cracks in the early stage of use, affecting the normal use of the road. Because of the position and position of the grass-roots structure, the characteristics of the basic structure have a great influence on the crack. In this paper, the semi-rigid base asphalt concrete pavement structure is taken as the research basis, and the influence of the...
In this paper, study the influence of anti-stripping agent on the mesoscopic strength of basalt asphalt mixture in seasonal frozen region under different states and temperatures by experiments. Meanwhile Accurately and objectively evaluate the characteristics on engineering performance of two kinds anti-stripping agents. Results show that anti-stripping agent improves the mesoscopic strength of basalt...
The key to influence the durability of reinforced concrete structure is the corrosion cracking of concrete cover. In practical applications, the existing research results have not yet given a reasonable basis. In this paper, the representation of the theoretical analysis methods have been classified and compared, the accuracy of various methods has been comparatively analyzed by a concrete case. In...
This article uses finite element ABAQUS to set up the 3-dimensional finite element model of the dynamic tri-axial specimen, simulate the dynamical deformation behavior of the stabilized-soil under cyclic load. The main focuses on the freezing temperature of the strengthen soil of the plastic deformation. Meanwhile, the influence to the strengthen soil dynamical characteristic such as cyclic load's...
Based on virtual crack model and the following hypothesis: (1)supposing that there are two symmetrical radial initial cracks at concrete and steel interface position, (2)considering that the corrosion crack starts to extend when the difference of crack tip stress intensity factors caused by rust expansion force and cohesive force reaches concrete fracture toughness, the concrete cover corrosion cracking...
This paper is concerned with the robustness and H∞ control problem of observer-based control for a class of uncertain linear discrete-time systems with both state and input delays. Under no disturbance input, the asymptotic stabilization for uncertain time-delay systems will be guaranteed. Linear Matrix Inequality(LMI) optimization approach is used to design the observer-based H∞ control. An example...
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