Applied Mechanics and Materials Vols. 193-194

Abstract: The stress behavior of the reinforced inorganic polymer concrete(IPC) beam was discussed, included the load-deflection curve, craze load and ultimate bearing capacity under the static load function through the method of the experimental study and the non-linear finite element analysis. Compared the data of the experiment with the results of the finite element analysis, it indicates that the reinforced IPC beam owns higher ductility ratio and better deformation capacity on the same loading condition. Meanwhile, the cracks of IPC beam develop more slowly than the normal ones, there were less and smaller cracks on IPC beam. The research results offer the theoretical and experimental references for engineering practice and design index of IPC.

Abstract: This paper discusses the application of Hui Zhou brick carving in interior design, and as traditional materials, specialty Hui Zhou brick carving contains the Chinese culture and folk-custom, which is significant in aspects of preserving the traditional culture and improving art. In order to adapt modern interior design styles, it is important to re-create the Hui Zhou brick carving.

Abstract: Bond of corroded reinforcement and concrete under repeated loading was investigated experimentally. An electrolyte corrosion technique was used to accelerate reinforcement corrosion. The results of the experiment indicate that: corrosion of reinforcement is the significant factor affecting the bond, with the increasing number of loading, the peak bond stress and area of hysteretic curve decrease gradually.

Abstract: The asphalt pavement is the mainstream pavement structure of the expressway in our country. But it is investigated that rutting disease appeared even though the asphalt mixture was test qualified. With this instruction, the standard rutting test method has difficult in satisfying the complex working condition of asphalt pavement. In order to solve these, some new rutting test methods which are in accordance with privileged conditions have been proposed from theory and simulation test by many scholars’ deeper research, including lots of feasible methods. By summarized the new anti-rutting methods of asphalt pavements and described all kinds of basic principles and engineering applications, the deficiency of the new rutting test methods was pointed out and the development direction was proposed.

Abstract: This paper aimed at the problem of how to rapid repair the military airfield pavement after it be demolished. It adopted the coagulate faster and early strength special cement, superplasticizer and mineral admixture, used the demolished pavement made recycled aggregates, optimized the mix proportion design and studied the performance of self-compacting recycled pavement concrete of high early strength. The laboratory tests and used in field both indicate that the workability of the self-compacting recycled concrete is well, could be constructed conveniently, the 4 hours’ flexural strength after it mixed could achieve more than 2.5MPa and ensure one type plane take off safely, which could fulfill the technique requirements of rapid repair the pavement. The flexural strength could achieve more than 5.5MPa at 28 days, and the recycled concrete felt with the existent pavement well, which could fulfill the long-term requirements of airfield pavement, the concrete also could be used in the rapid repair the cement concrete pavement of civil airfield and highway.

Abstract: This paper analysed the unique climatic characteristics of Qinghai-Tibet plateau and the durability requirements of airfield pavement concrete, improved the frost resistance, impermeability and abrasion resistance of pavement concrete by mixing air-entraining and water-reducing admixtures. The relations of content of the air-entraining admixture, strength and frost resistance of concrete were tested systematically in laboratory, the appropriate air content was put forward. The tests shown that the frost resistance, impermeability and abrasion resistance fulfilled the requirements of the plateau airfield pavement. In the field of Yushu Airfield in Qinghai, it studied the raw materials selecting, control of air content and construction technics, ensured the durability of the pavement concrete and gained well effect.

Abstract: The vibration theory of beam and D’Alembert principle are used to set up vehicle-bridge system for a simply-supported girder bridge under the moving rows mass-spring model. The kinematic equations of vehicle and bridge are derived separately. And with the force balanced relationship and the displacement compatibility conditions between wheels and rail, the equations of vehicle-bridge system are established. A calculating program is complicated with MATLAB language and solved by Newmark-β method. Results show that the effect of the damping ratio on the impact factor is significant and running speed of the vehicle is one of the main actors resulting in vibration of the system.

Abstract: Due to influence by many factors like soil classification, viscosity property and vibration frequency, there is no common view yet about the effect of frequency on dynamic pore pressure and characteristics. In order to study the development of pore pressure, strain and dynamic strength of Hangzhou Bay undisturbed structural silty clay under different vibration frequencies, cyclic triaxial tests were performed. The test results indicate that the frequency has little influence on pore pressure and strain when they didn’t reach the threshold values, but once they exceeded the threshold values the frequency will has strong influence. There is critical cyclic stress ratio when the cyclic stress ratio has not reached that value, the frequency has no influence on dynamic strength. For the given cycles, the higher the frequency is, the bigger the dynamic strength is. And with the increment of frequency, the influence on dynamic is decreased eventually.

Abstract: Cable stayed arch bridge is a hybrid arch system which is different with architectural cable-arch and stretch-draw prestressed tendon out of arch. In this article, by comparing the plane models of cable stayed arch bridge and common arch bridge and calculating, we analysed cable stayed arch elastic stability in plane of different rise-span ratios, boundary conditions, load cases.

Abstract: The passage analysises the nonlinear finite element about the horizontal bearing capacity of pile in the case of the Homogeneous soil and other case of the layered soil with ANSYS.The displacement and stress contours of pile are considered,and the paper compares the two different simulation methods to change the right method which fits the corresponding case.