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Study Of The Structural Finite Element Analysis And The Pedestrian Flow Control Of Yaoshange In Ke Garden

Posted on:2011-11-13Degree:MasterType:Thesis
Country:ChinaCandidate:X H LuoFull Text:PDF
GTID:2132360308964275Subject:Bridge and tunnel project
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Ancient architectures in China have formed widely different style compared with occidental architectures, through the five-thousand-year development of culture. The existent ancient architectures not only have the precious cultural relic value, but also have highly tour and sightseeing value. Along with the advance of social civilization, the protection and research to ancient architectures has become an important task. The developing modern technology is also promoting the protective work to turn into the science stage from the experience stage. However, there are many difficulties and some limitable conditions in the course of the research on scientific research of ancient architectures, because of special structural materials and tectonic modes of ancient architectures, which makes that datum of scientific research of ancient architectures be less than them of historical and artistic research of ancient architectures.Based on the recovering and analysis of Yaoshange's datum in Ke garden, by series methods of finite element numerical value simulation, this paper analyzes a special sort system of Chinese timberwork and brick structure. Its work is as follows:1. In this paper, the general situation of Chinese ancient architectures and their research status were viewed firstly. Because of the main structure of Yaoshange is masonry structure, the mechanical properties of masonry and the theory method of the masonry finite element analysis were briefly introduced later. Analog stone block and mortar to Representative Volume Element (RVE) which composed of equivalence bricking-up. RVE is a mechanic model through individually considering material characteristics and interaction of stone block and mortar, moreover, this element was applied to the structure finite element analysis of Yaoshange.2. Based on the recovery of the data of the structure's geometry and the materials'mechanical properties, combined with the programmer of finite element analysis ABAQUS, the three-dimensional simulation of Yaoshange was conducted in this paper. During the process of determining the model of the simulation, taking the particularity and the complexity of the big roof of Yaoshange into account, its weight is converted to concentrated load and concentrated mass acting on the top of pole.3. The ancient masonry architectures always have characteristics of long history, huge body, a large number of them are saved and have important research significance. At the same time, this kind of ancient architectures has complicated conformation. It would have many difficulties in the process of establishing the finite element modeling and its meshing. This paper had discussed the modeling technology. During the research of the modeling technology, the currently most advanced computing technologys were applied. Comparing the analysis results of the simulational model with the structure safety identification results until both of them have arrived at the greatest degree of agreement. And then the reasonable analysis model was confirmed. In the end, the reliable data could be received from the structural analysis under the different working conditions for the pedestrian flow control.4. After knowing the response of Yaoshange under the different working conditions, we would give out the pedestrian flow control scheme to make sure that the building be safe in the usual running days.In a word, these theoretic datum have theoretic sense and applied value in engineering, through elastoplastic finite element analysis on the timber structure and masonry structure of Yaoshange; At the same time, it had reference effect on the protection method research that protecting the ancient architecture from the perspective of the pedestrian flow control.
Keywords/Search Tags:representative volume element (RVE), finite element, masonry structure, ancient architectures, pedestrian flow control
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