Applied Mechanics and Materials Vols. 71-78

Abstract: This paper introduces the ANSYS optimization design principles and proposes the specific operation steps of it. Through a case research, the paper gives an study on the entire process for the realization of ANSYS design optimization model and the major steps involved. The study results comfirmed the feasibility of optimizing the design model by ANSYS, and provide a new approach or tools for the analysis on the optimization of other complicated structures.

Abstract: Wooden-culture of Inner Mongolia is centuries-old and profound, Mongolia race is a minority which has their own culture and art,language,life convention and religion faith. Wooden-culture which include Panel board,Furniture,Craftwork, Mongolia house and Matouqin has been investigated.

Abstract: Since the traditional design methods are based on the simply-supported experimental model, the bearing capacity of concrete bridge deck reinforced with GFRP bars is often determined by serviceability limits. The predicted bearing capacity is so low that high reinforcement ratio and construction cost are lead to. However, the previous researches on concrete bridge decks reinforced with GFRP bars revealed that crack widths and deflections were far less than the predictions by traditional codes, due to the existing of compression membrane action. This paper proposes a restraint test model to stimulate the comprehensive working property of deck system，considering the restraint from other part of the deck. Compared with simply-supported test model, bearing capacity and serviceability of the proposed are improved by more than 1 time. New experimental model for designing concrete bridge deck reinforced with GFRP bars are required.

Abstract: This article mainly narrated the ceramsite concrete thick aggregate, the performance and the application situation. Domestic and foreign has conducted a series of research to ceramsite concrete's application, in applies and in the promotion, compares with the developed country, our country also has certain disparity.

Abstract: An overall outline is given for the development of the glued laminated timber structures in China. Different types of glulam structures built in recent years, such as gymnasium, bridges, public buildings, traditional architecture, landscape structures have been discussed. During the development of glulam structure in the future, raising design and produce level will be the most important question we confront and should be settled.

Abstract: Effective construction site layout planning (CSLP) shall improve construction operations efficiently and enhance work environment safety. The majority researches works on CSLP focused on developing different algorithms and program to generate site layout alternatives using quantitative and qualitative factors involved in the interaction flows. However, some qualitative factors, such as security and noise control are not taken into consideration. This study proposed intuitionistic fuzzy TOPSIS method to evaluate and select the best site layout from site layout alternatives in terms of the project-specific attributes, which are neglected and hard to quantify in generating site layout alternatives. The results show that the proposed method improves the quality of decision making in evaluation and selection of the best construction site layout.

Abstract: The emergence of urban complex is a necessity of the generally accepted concepts--moderate concentration of the city, compact development of space and organic mixture of function. It explains the nature of city development on the level of "Urbanism, Openness and Intensivism”, and it is an urban entity combining the internal logic dynamically between city function and city development by city architecture and city space. In the real HOPSCA time, what we concern is the city rather than the architecture.

Abstract: This article examines a new lightweight, slim, high energy efficient, light-transmitting, self-supporting envelope system, providing for seamless, free-form designs for use in architectural projects. The system exploits vacuum insulation panel technology. The research was based on envelope components already existing on the market and patents and prototypes built by independent laboratories, especially components implemented with silica gel insulation, as this is the most effective transparent thermal insulation there is today. The tests run on these materials revealed that there is not one that has all the features required of the new envelope model, although some do have properties that could be exploited to generate this envelope, namely, the vacuum chamber of vacuum insulation panels, the use of monolithic aerogel as insulation in some prototypes, and reinforced polyester barriers. These three design components have been combined and tested to design a new, variable geometry, energy-saving envelope system that also solves many of the problems that other studies ascribe to the use of vacuum insulation panels.

Abstract: Damages of adjacent bridge girders due to pounding observed in Wenchuan earthquake are introduced in this paper. Based on Niulanjiang Bridge built in Yunnan province, nonlinear time history analyses are performed considering non-uniform seismic ground motion excitations, which are obtained by site seismic response analysis of the local canyon topography. And the effectiveness of cable restrainer device against unseating is studied through numerical simulations. The results show that pounding between adjacent segments of the bridge may obviously amplify the relative deformation of expansion joints, resulting in a higher probability of unseating. Cable restrainers can not only reduce the relative deformation of the expansion joints, but also mitigate the response of isolators. It also indicates that the cable restrainers can observably reduce the response of piers.

Abstract: In this paper, the feasibility of river sludge subgrade with construction waste is studied through CBR test and limit moisture content test. The variation that the carrying capacity of river silt with the increase of mixed proportion of construction waste is analysed, and the suitable mixing ratio is obtained that to filling roadbed with river sludge and construction waste.