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Closed barrier and semi-closed barrier are presented in the paper, the adaptive research is performed. Reducing effect of noise barrier with closed and semi-closed structure was studied by noise simulating program—RAYNOISE. The applied range of the closed and semi-closed noise barrier is confirmed. Simulating results showed that noise reduction of closed-shaped structure has good reducing effect at...
An experimental study on thermal comfort was conducted to explore summer comfortable temperature in Air-conditioning Room in August 2009. Records the different parts of the skin temperature data of 20 randomly selected subjects in a room temperatures ranging from neutral to warm during the two hours experiment, and simultaneously recording participants of the overall and partial thermal sensation...
Different from the traditional method, the finite element method considering the cooperative effect of foundation beam and the upper framework produces remarkable economic benefits. Stiffness contribution of Infill wall can not be slighting.
It is important to low-carbon buildings development that value engineering is a management technique and scientific method developed, firstly was put forward at twentieth century. Combined with the characteristics of low-carbon buildings and value engineering analysis, this paper put forward the theory of low-carbon value and calculation formula for that provide reference ideas for the development...
This paper is concerned with the problem of applying catastrophe theory in buildings fire risk assessment. Firstly, by using the Delphi method, the buildings fire risk evaluation indices system is developed. Secondly, by using the catastrophe theory, the buildings fire risk assessing model is introduced. Based on this fire risk assessing model, we can obtain the buildings' fire rating, and by analysis...
For more in-depth research on the hydrodynamic performance of VVP, the method for the prediction of the unsteady hydrodynamic performance of VVP by fluent is studied in this paper. The simulation model is built and meshed by tetrahedral, hexahedral unstructured hybrid grid. There is a partial encryption for grid near the VVP and the wake field. UDF program is provided to keep the blades move by the...
In this paper, a simulation program is introduced to predict moisture distribution and inner condensation in multi-composite wall under considering the physical characteristics varying with surrounding temperature and moisture; it is called as varying characteristics method. Furthermore, simulation results of varying characteristics method and fixed characteristics method are compared with actual...
The space-time effect during soft clay soil areas deep foundation pit excavation is an objective reality. The time taking of excavation is an important index of foundation designment and construction parameters determination. In this paper, based on one station foundation pits of NO.2 subway in Wuhan city, the 2-D numerical simulation model which consider the excavation time-effect is established...
The article analyses the background of the expansion construction land in the urbanization period, summarizes the experience at home and abroad, expounds the connotation, goal and significance of non-construction land control in accordance with the overall planning concept. Moreover, the article expounds some focal and difficult point of non-construction land control tactics.
Urban agriculture is an integrative concept which encompasses economy, society, ecology, landscape, education, demonstration, et cetera. However, the research on the application of urban agriculture to ecological residential district planning is still rare now. This essay first describes the origin, development, characteristics and multi-function of urban agriculture, then presents the significance...
As it can meet the requirements of speed, non-touch, high intensity and digital data collection in metric survey of historic buildings, 3D Laser Scanning has been accepted rapidly by architectural schools in many universities and institutions concerning architectural history and conservation of cultural heritage. However, due to the lack of detailed knowledge of the equipment and technique, following...
The Source Region of Yellow River locates in the northeast of Qinghai-Tibet Plateau with an area of 131419 km2, which is especially sensitive to global warming because of its high elevation and cold environment. To assess the land use and land cover changes from 1975 to 2005, we employed remote sensing and GIS technology to monitor the area of land use and land cover at four times (1975, 1990, 2000,...
The paper studies the failure process on anchors in loess with water seepage through an indoor model test. In the paper, we have first of all introduced our design and test process, with the focus of our study laid on the strain figure of the end of anchorage segment, slip surface and slope for the same row anchors. The author has also made a discussion in detail on four kinds of likely failure modes...
The architectural heritage is a part of the cultural heritage, whose preservation and sustainable development is becoming an important part of the national culture strategies and has received unprecedented attention. But now, architectural heritage is facing the impingement of the rapid development economy and the accelerating urbanization process. The “Constructive Destructions” has reached an unprecedented...
As the primary energy consumer and the main source of carbon emissions, the city has focused on low carbon. Constructing a low carbon ecological city is necessary to achieve sustainable development. This paper describes the meaning, the types and the international trends of low carbon ecological city. Then, the developmental situation of China's first group of low carbon city is investigated and analyzed...
In order to calculate building settlement forecast accurately and construction operation safely, a building settlement forecast method using BP neural network was put forward with deeply analysis of existing building settlement prediction methods. Firstly, BP neural network learning samples are established based on time series analysis method, a three-layer BP neural network is used to settlement...
The application of remote sensing in urban water demand management is all along at blank stage in China. This paper introduced methods to estimate building height through high-resolution remote sensing images and examined the methods by an experiment of a residential area in Nanjing using IKNOS image, which proved that the shadow area method is more accurate than the shadow length method. On this...
This study was an add-on study to the National Air Emission Monitoring Study (NAEMS) funded by USEPA. The objective of this study was to measure odor emissions and corresponding concentrations and emissions of target odorous gases. Odor and odorous gas measurements at four NAEMS sites (dairy barns in Wisconsin-WI5B and Indiana-IN5B, swine finisher barn in Indiana-IN3B and swine gestation/farrowing...
As a new means of data acquisition, vehicle-borne laser scanning technology can quickly obtain accurate the three-dimensional spatial information of objects, it is very suitable for urban objects in the rapid access of three-dimensional spatial information. The colored point cloud data by fusing laser data and CCD image, not only having spatial information, but also the color attribute information...
Urban green space system planning, which greatly affects the quality of citizens' daily lives, is the basis of Green Landscape matrix and sustainable development of economic and society. It plays an important role in construction of urban ecological environment. A pleasant, livable and work-suitable urban green space system with local culture and unique custom is particularly important for medium...
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