Applied Mechanics and Materials Vols. 71-78

Abstract: A city high-rise building of the environmental balance, and its prominent position in the image and the place has a special symbol. However, high-rise buildings developed to reduce the symbolic value that it has attributed to the relevant system of architectural forms. As more and more dense urban high-rise buildings stand, we should be carefully evaluated: its ecological evvironment, will be the effect Because of its height and volume, a high-rise building than in the top or bottom is likely in terms of physical environment on the social environment and the impact is much greater. Disturb the existing high-rise buildings in varying degrees between the various functions of the city, increasing the city high-rise buildings in the moment, how to properly control the rapid of high-rise buildings in order to maintain a sustainable ecosystem, is a question worth considering.

Abstract: At the beginning of the 21st century, Su-tong and Stonecutters cable-stayed bridges were born into the world, which make the original span record of 890m up to 1088m. The increasing range of the span is so large that it is necessary to carry out a special research on structural system of the cable-stayed bridge with kilometer-scale span. Therefore, two cable-stayed bridges have been designed as the research objects, which come from the background of Su-tong cable-stayed bridge. And the main span is respectively 1308m and 1500m. In this paper, an analysis is carried out from the aspect of girder-tower relationship which comes from the concept of the structural system. In the static analysis, structural system, which is respectively floating, half floating and rigid, has been studied. And in the dynamic analysis, the girder-tower relationship has also been studied, which is respectively with no dampers, elastic links and viscous dampers. Based on the analysis results, structural system applicable for kilometer-scale cable-stayed bridges is summarized.

Abstract: Construction site layout planning (CSLP) is one of the critical activities in construction planning conducted by the managers on the construction sites. CSLP is significantly influenced by the interaction flows and distance between the facilities. The paper aims to apply fuzzy rule-based system developed in the manufacture industry to determine the facility closeness relationship in the construction site. Facility closeness relationship with consideration of quantitative and qualitative factors can be successfully determined by the procedure based on fuzzy rule-based system.

Abstract: This paper introduces the Green Factory Building Evaluation System (called EEWH-GF) in Taiwan. EEWH-GF is aimed at industrial building, which has developed the highest density in Taiwan, in the world. The Taiwanese industry formerly achieved half the results while expending twice the effort in economic development, irrespective of the ecological environment. Several efforts are required to recover the increasing damage to the environment. The EEWH-GF contains two necessary indicators, Executives promise and Commissioning (CX), and four aspects: ecology, energy, waste, and health. By using EEWH-GF evaluation system, designers can modify building proposals in the design phase to meet project requirements. Not only is the system excellent for sustainable environment, but also for upgrading the industrial advantage of Taiwan in the world.

Abstract: Urban color planning is a very complex issue. It is diffcult to carry out overall planning and color management scientifically relies on traditional survey methods and empirical analysis. The object of Chaos theory is nonlinear complex systems. In this paper, we combined chaos theory and the traditional urban planning approach, proposed the urban color planning methods based on chaos theory. Through the case study of Zhuhai Qinglv Road, we have got the color planning of Zhuhai Qinglv Road.

Abstract: This paper presents a laboratory study on the effect of air entraining agent on the performance of thermal insulating mortar with glazed hollow bead. The test results show that with the dosage of air entraining agent increases, the consistency of thermal insulating mortar increases, apparent density, thermal conductivity and drying shrinkage decline, However, the compressive strength greater losses owing to excessive consumption of air entraining agent; air entraining agent within a certain dosage can significantly improve the operating performance of thermal insulation mortar, increase its consistency and reduce its apparent density, thermal conductivity coefficient and drying shrinkage. Due to excessive addition of air entraining agent, the apparent density, thermal conductivity and compressive strength of thermal insulation mortar all increase. For a specific insulation mortar, there will exist the best mixing amount of air entraining agent.

Abstract: Strictly speaking, the indoor environment intelligent control system can not only detect the parameters of indoor environment, the state of every equipment, but also adjust indoor environment automatically in order to achieve the most comfortable indoor environment under condition of saving energy. Based on thermal comfort index PMV, we have constructed the MAS (Multi-Agent System) for indoor environment control with Zigbee network technology after the deeply research on the decoupling of the environment parameters. In this paper, main researching contents have been discussed like the cooperation strategy in the MAS, proposed a cooperation strategy based on the task distribution, which decreased the communication and enhanced problem solving efficiency.

Abstract: Two same concrete experimental models are made to simulate solid buildings with the control variable method, by making 100% coverage of roof greening and 50% coverage of wall greening on the enclosure of one model, and taking the other model as the reference without arrangement of greening. Then collect the data of the temperatures inside and outside the models. The analysis shows that during the period from October, 2010 to March, 2011, the average accumulated temperature of the test model is 1.31°C∙h higher than that of the control model, and the green plantations can effectively reduce the heat transfer coefficient of enclosure structure, and improve the thermal resistance of the enclosure. The greening method used in this experiment can improve the thermal insulation of the enclosure by about 10%.

Abstract: Based on the need of housing industrialization, using full-scale models, this paper investigated the seismic behavior of pre-cast concrete beam-column subassemblies with cast-in-situ monolithic joints under low-cycle reversed loading. The failure pattern, hysteretic characteristic, skeleton curve, ductility and energy dissipation were also analyzed. The result indicated that beam-column joints with longitudinal bars welded at the bottom of beams can meet the requirements of “strong column-weak beam, stronger joint”.

Abstract: Based on the installation process of mega complex steel frame structure in Guangdong Science Center, the engineering features and difficulties are introduced. Then the installation schemes and technologies are described in detail, including installation stages division, installation sequences, installation technology of steel column, main or secondary truss and bow truss. The result indicates that the effect of the installation technology is perfect. The application of this installation technology effectively ensures construction progress, quality and safety.