Applied Mechanics and Materials Vols. 174-177

Abstract: Many performing venues in Taiwan are historical. After long-time use, both the structure and equipment system of these venues have aged, thus causing critical impact on the stage, lighting, and sound effects. Based on the case of the Experimental Theater at the National Theater, this study investigated what should be noticed when renovating the theater lighting system, in order to provide an innovation guide for the management. This study also gathered the relevant information for maintaining the theater lighting system, in order to provide a reference for maintenance personnel to ensure the usability and functionality of dimmer systems.

Abstract: With the development of the society, the technological innovation of the building structure promotes the new progress of the construction form. This paper focuses on the technological progress of the western architectural structure, deduces the new breakthroughs from the old architectural forms, while the architects’ whimsy ideas promotes the development of the construction structure technology, combines the new technology with the research, design and production. This will be the developing road for the future architectural form.

Abstract: The problem on high-energy consumption of public building has drawn wide attention with the development of architectural techniques and deficiency of renewable energy. Rapid plan and decision in the early stages of design can have a deep influence on the performances and energy consumption of the public building. Based on the climate and passive strategies in DaLian, the paper studied design pattern and performance the low-energy conference center. The parameters, such as shape coefficient, orientation, area ratio of window to wall and solar collectors, were optimized. The annual energy consumption of the building with solar collectors was 14.2 kWh/m2.a. The economic performance of the designed conference was analyzed and payback period is calculated, namely 6.85 year.

Abstract: BIM is widely accepted in construction because of its concept of integration, and will be the mainstream in the future. BIM became more and more important in collaborating on all the working stages during building life-cycles due to its great advantage in data integration and processing. The connection between Rhino, a designing software, and BIM becomes necessary. This article introduced the adoption and implementation of Rhino in the Steel Detailed Design and Construction in Datong Library. The guidance and effectiveness of parameterized models generated by Rhino in smoothing the complicated steel construction process was also introduced.

Abstract: Beijing building energy efficiency work has been carried out for 20 years, which played a significant role in building energy saving. Based on the energy audit which is site test and statistics of building energy consumption analyses the energy consumption of residential building in Beijing. Discusses the residential building energy consumption characteristics and gives the energy consumption tread of residential building in Beijing. The results show that Beijing's residential building energy consumption per unit area is reduced year by year, which is mainly related with the implementation of the Beijing building energy efficiency standards.

Abstract: Based on the small density changes of each phases, the defects and morphology of cement-based materials can be observed with the X-ray computed tomography (X-CT). The application of X-CT technology in the cement-based materials was reviewed in this paper. The microstructural changes during processes of carbonation, corrosion and steel corrosion were observed with X-CT equipment. It showed that the resolution of X-CT technology was limited and can up to 20um when the sample is small enough. The distribution of fibers, the pore structures and the cracks could be observed with 2D/3D images, and statistical information could also be calculated by the software. So the X-CT equipment played an important role in the strengthening and toughening mechanism analysis of fiber-reinforced concrete, porosity calculations and antifreeze analysis of general concrete and air-entrained concrete. The structural changes of concrete under the conditions of service, after carbonation, dissolution and steel corrosion could also be observed clearly.

Abstract: For insulation, green roof has been widely applied and researched in recent years. The effective thermal conductivity (ETC) of planting soil of green roof plays an important role to insulation. The ETC of six kinds of compound planting soil, usually used in green roof，were measured with different water content. The results show that the ETC of compound planting soils has linear relationship with weight humidity. A sensible, albeit simplified mathematical model, with weight humidity and dry apparent density as variables, was established for the dynamic ETC of compound planting soil. To verify model accuracy, the calculation data of ETC of compound planting soil, which under natural climatic conditions for 2 years, were compared with experimental data, and the results indicate that the model have high accuracy in a wide range of weight humidity. In additional, the ETC proper range of compound planting soil was derived.

Abstract: The differences of empirical formulas of China, United States, Japan, and Europe for estimating the fundamental periods of frame-shear wall structures are investigated. Summing up paradigms of the empirical formulas from the above representation countries, the paradigm formulas expressed as single-variable exponential type, single-variable linear type, and multi-variable non-linear type. Using statistical data of 88 groups of the measured fundamental period for least-squares regression analysis, and the effect of fitting regression formula is judged by the norm of relative error‖δ‖₂ , the norm of root mean square error‖RMSE‖₂ , and the norm of residual mass‖CRM‖_{2Italic textb> . The results show that: the single-variable exponential type has wide application and gets closer with measured fundamental period; the single-variable linear type is briefly, and the single-variable based on structural height has smaller error than the single-variable of stories; the multi-variable non-linear type is very complex and larger error compared with the measured fundamental period. Considering the formula in the form of simple, practical and consistent with the codes, this paper gives single-variable exponential type as recommended empirical formula for estimating the fundamental periods of frame-shear wall structures .The proposed empirical formula can serve as a reference for revision of the seismic design code, frame-shear wall structure seismic design and related studies.}

Abstract: With the geographic information technology in a wide range of applications in geotechnical engineering, in geotechnical engineering, the computer visualization technology has also been rapid development. Accurate three-dimensional mathematical model can make exploration data more realistic. In this paper, the three-dimensional visualization technology of computer combined with mathematical elevation model (DEM), and using multi-faceted function interpolation method to establish the accurately and effectively three-dimensional digital model of the slope. The results show that, the use of multi-faceted function interpolation method can effectively solve the slope of three-dimensional digital modeling interpolation problem.

Abstract: Humankind simmered with limitless appetency but never satisfied entirely, the weakness of humanity is too much appetency, whether for human’s survive or for development. The process of making tools is the result under the action of humanity, drived by natural attributes and free attributes of humanity, on one hand, drived by internalized natural attributess of seeking for safety, comfort and self-realization, and exterior natural attributess of lazy, jealousy and selfish, humankind devote themselves to the pursuance for physical and psychic wealth, the individual interests realized under the sake of realization of group’s interests. On the other hand, in view of the fact that the human society exist in country and nationality, whether individual or groups dominated by free attributess of humanity, lead the development of each industry through law and guild regulations, as well as the development of building materials included. The development of building materials is a mirror of human’s development history, building materials is the historical result of the revolution of production tools, it is the arm to change humankind and the world, it’s appearance, renovation and disuse as a reslult of humanity, it include the characteristics and contents of humanity, it represent the weakness and mightiness of humanity.