Applied Mechanics and Materials Vols. 71-78

Abstract: Green Walls have many benefits，such as decorating elevation, protecting building envelope, reducing energy consumption and so on . This article describes the techniques and new items of vertical greening. And it points out that building technique integrating gardening provides extensive application foreground. Architects should have the theories of green building and using greening at the beginning of design.

Abstract: Base on renewal transformation practice of urban buildings, firstly new green reconstruction ideas are put forward aiming at improving and enhancing work performance and safety performance of urban buildings, enhancing ability resist earthquake, typhoon, etc, guaranteeing the safety of people's lives and property, improving the efficiency of resource utilization, energy-saving, land-saving, water-saving, material-saving, protecting and improving the environment, prolonging service life of existing buildings. Secondly, system of technical standards for renewal and reconstruction of urban buildings is established, which includes aspects of exploration, inspection, identification, evaluation, design, construction, project acceptance, and operation management. Finally, a new green reconstruction mode of existing buildings is presented. It has been proved the effectiveness through applications and practices for many years.

Abstract: As the monitoring subject of construction engineering investment, engineering project supervisor plays a vital role in the investment control of construction stage. Based on the research by the construction supervisor about the construction phase of the investment control, this paper combined with engineering examples, and analyzed many reasons and key points that have influenced the investment control in the construction stage, and tracked out the investment control methods and measures aimed at each point that supervisor should do, thus to control the investment cost in construction stage effectively.

Abstract: Design stage is the key stage of investment control in highway engineering. The advantages and disadvantages of design scheme quality will directly influence the whole effect of project investment and application. This paper applies value engineering to compare the technical economy of design schemes of highway engineering, comprehensive analysis the conditions of function and cost to optimize the optimal scheme, and verify the reliability of application value engineering in optimizing design scheme of highway engineering by actual engineering example.

Abstract: The cost management for construction enterprises is an important link of whole process engineering cost control in project construction. This article elaborates the details and procedures of the construction enterprises’ cost management in the construction stage. In the paper, it will be divided into three steps which are the stage of preparing, implementation and completion of project, and construction enterprises will separately use the methods of pre-control, control in process and afterwards control in each step for the cost management.

Abstract: It has economical and social value to build energy-saving architectures. Foamed concrete is commonly used as non-load bearing structure to save energy of buildings. With reinforcement of fiber foamed concrete can be used as load bearing structure to build architectures. The load bearing structure of fiber reinforced foamed has ability of self thermal insulation to get the aim of energy-saving. In the paper the excellence and disadvantage of foamed concrete is summarized. Methods are given to build the energy-saving architecture with self thermal insulation structure of fiber reinforced foamed concrete in new formwork. The building technology will be applied in new countryside construction in China.

Abstract: Arsenite(III) and arsenate(V) removal from low-arsenic concentration drinking water by amorphous and anatase TiO₂ adsorbents were studied in this paper. X-ray diffraction (XRD) and BET surface area analysis were used to characterize the physical and chemical properties of the adsorbents. Pore size calculated from adsorption average pore width (4V/A by BET) is 3.92 nm of amorphous TiO₂ and 11.0 nm of anatase TiO₂. The BET surface specific area of amorphous TiO₂ was found to be 205 m²/g and anatase TiO₂ was 115.6 m²/g, respectively. Amorphous TiO₂ shows more efficiency than anatase TiO₂ for As(III) and As(V) removal. About 80% of As(V) and 60% of As (III) can be removed within 2h reaction when dosage of amorphous TiO₂ was only 0.1g/L. High temperature can facilitate the adsorption of As(V) but exhibit no obviously influence on As(III). Adsorption kinetics data were found to be best described by the modified pseudo-second-order kinetics model which can be described by Equation 1/(Q_e-Q_t)-1/Q_e=k∙tⁿ for arsenite(III) and arsenate(V) removal.

Abstract: Based on the build-and-run cycle of the energy-conservation building, this paper studied from the perspective of building energy-saving. It analyzed the amount of increased investment through the analysis of build-and-run cycle cost and economic benefits of the energy-conservation building throughout the life cycle.Finally it establishes an economic evaluation model for the energy-saving building.

Abstract: Facing the increasingly serious energy and climate crisis, the concept of low-carbon indicates development direction for building conservation. However, building functions are easily neglected in the process of low carbon residential buildings construction. Therefore, based on the concept of value engineering, this paper presents a comprehensive evaluation method to evaluate carbon emissions of residential building. It highlights residential building functions as well. Function coefficient can be confirmed by establishing residential buildings function evaluation index system. Moreover,the unit carbon emission isadopted as cost coefficient. The low-carbon nature of residential building will be evaluated by the ratio of function coefficient and cost coefficient.The aim of this research is to advance the awareness of residential building carbon emissions, exploring the path of realizing maximum satisfaction of building functions with minimum carbon emissions, which can provide new ideas of residential building carbon emissions evaluation.

Abstract: The paper researched on the application of model language in architectural teaching, and beginning with the record of the whole process of a full-sized construction practice, it analyzed the advantages of employing construction in architectural teaching, pointed out the probable demerits that could exist in the system, and provided solutions. It put the construction of Campus Building to test under architectural educational background, and based on the final results discussed the maneuverability of “multi-major united education” in teaching innovations. It tried to find out the points through which the concepts could intervene in architectural education, and how full-sized construction could truly improve architectural students’ major literacy in the long and short terms.