Applied Mechanics and Materials Vols. 71-78

Abstract: In this paper, applying the principle of mixed variables solve the problems of forced vibration of the rectangular plate by uniform load , the stable solution of the cantilever plates by uniform load can be worked out. The results by calculating not only it have academic value, but also it can be directly referred in the actual work.

Abstract: Based on the three-dimensional computation model, the actual project ,a high-rise building with podiums on the jointless raft foundation, is made nonlinear numerical analysis, which aims at studying the characters of superstructure-foudation-soil’s interaction, and analyzing the stress features in raft foundations under the former interaction , the distribution of stresses on foundation plate，and the range of stress dispersion about subgrade reaction. Through the factors, which can affect superstructure-foudation interaction, are analyzed , such as superstructure’s stiffness, foundation’s stiffness and soil’s stiffness. Then, the distribution rule of stress and deformation about superstructure-foudation interaction. Which can provide some calculation basis for this kind of foundation design.

Abstract: To meet the vibration control needs working in varied vibration conditions, a new type of semi-active controllable friction was developed in this study, called Self-feedback-friction Damper, with the control of the feedback signal of vibration amplitude. Through calculation and analysis of its work capacity, the parameters of the Self-feedback-friction Damper are determined. The research shows the damping force of new friction damper changes to adjust the varied displacement, to obtain a better damping effect, controlled by the signals of the vibration amplitude.

Abstract: This paper comprehensively summarized the development of solar technology, across-the-aboard analyzed the application of solar technology in the architectural design. According to the practical application of solar technology of the world, particularly China, it systemically described a variety of experience, trends and the key issues of the technology applications. It described three stages of technology development in detail, and specifically in-depth analyzed the solar photovoltaic devices and the building integration, put forward the feasible development strategy. This was very significant for erecting a low-carbon world.

Abstract: The arch bridges were used widely for the good performance under the pressure in China. It was very sensitive to some factors as temperature , settlement etc so that the arch bridges occurred the disease, carrying capacity reduction or even structure destruction etc.In the paper, based on the characteristics of masonry arch bridges, reinforcement method was analyzed, according to the situation of a masonry arch bridge, release energy method was applied to strengthening project. By comparing the stress and the strain before and after the strengthening project, some conclusions could be drawn that the bridge structure carrying capacity had been raised, the energy accumulated in the bridge structure was released, the structure safety margin was improved.

Abstract: Volume and slope are two important factors affecting the runout distance of landslides. Field investigation on 46 landslides triggered by the Wenchuan earthquake show that there are positive linear correlations between the logarithmic values of landslide volume and travel distance. And there is also a positive linear relationship between the equivalent friction coefficient and tangent value of initial slope angle for the landslides. On the basis, we obtained an empirical-statistic equation between the horizontal and vertical travel distance, the volume and initial slope angle. This can provide a basis for prediction of earthquake-induced landslides.

Abstract: This article chooses the evaluation index from The Report of Sustainable Development Strategy of China and quantifies the environmental innovation level. We exploit the data of western region from the year 1995 to 2010 and forecast the regional environmental innovation level in 2011 and 2012 through ARIMA model. The result of prediction indicates the tendency of stable increase of this level. We then use unit root test, co-integration analysis and Granger Causality to test the relationship between the environmental innovation and economic growth. The result shows the long-term equilibrium relationship between them; environmental innovation has positive external spillover effects on economic growth and they follow the Granger Causality. The results of empirical analysis comply with the situation of societal and economic development of western area. Finally, the relevant policy recommendations are proposed.

Abstract: If China intends to develop the low-carbon economy and realize the goal of energy conservation and emission reduction, it is essential to solve the food safety problem due to great volume of pollution and emission which is commonly produced by rural production and life. The rural areas play a vital role in China on account of its taking up more than half of China’s population as well as territory. In this article, the concept of low-carbon economy is to be combined with rural areas’ situation; the author is to determine a path for the construction of new rural area from the angle of Low-carbon rural areas.

Abstract: Under the rapid development of urban modernization, old residential communities in big cities are facing the trends of disintegration of social relationships and crisis of community culture. By introducing the concept of " Cultural Route " which is a new type of world historical heritage in recent years, taking its implication of " cross-regional, historicity, culture, dynamic and linear " as use for reference, and applying it to research of old residential communities renewal which full with spatial characteristics of "island" and "marginalized", this paper attempts to make use of concept “Cultural Route" to find local historical cultural resources in Yuzhong district, city center of Chongqing, and to form the “City Cultural Route" with properties of local life and urban tourism. The paper uses the way of case study, site survey, data analysis and finally concludes a new method to revive existing old communities in Chongqing.

Abstract: A new type of adsorbent which prepared with waste paper as raw material was applied in the treatment of dye wastewater, and studied the processing conditions on treatment effect. Batch adsorption study carried out as a function of the dosage, the stirring time, the stirring speed and the pH. The adsorption rate of newspaper adsorbent to basic blue dye simulated wastewater and alkaline yellow wastewater with an initial concentration of 80mg·L^-1 can reach 98.56% and 92.23% at 4g·L^-1 of the dosage of paper adsorbent, 15min of the stirring time and 150r·min^-1of the stirring speed. The maximum adsorption were 233.1g·L^-1 and 289.4g·L^-1 respectively. The isothermal adsorption experiment was also studied and concluded that the adsorption equilibrium data fitted with the Langmuir isotherm. The characterization experiment showed that the modified paper adsorbent had stronger absorbability.