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The bridge is the entity of the project , but also embodies the substance of science and culture . China bridge culture has a long history and profound . Those in under thousands of years of wind, frost, rain and snow , the Hongtao earthquake and war Binghuo of the test , surviving ancient bridge , can be valuable . Ancient bridge not only embodies the connotation and characteristics of our culture , showed the spirit of the will of the working people and the wisdom and strength , and is a typical specimen of the various historical periods of social productivity level . Hunan has a long history of civilization , the ancient bridge construction history can be traced back to the Qin Dynasty . The ancient artisans good at summing up the use of state-of-the-art technology of the bridge , and traditional art and ingenious blend , the construction of a wonderful building . As a witness of the historical development , social change remains crystallization of science and technology , culture and art of the record , it has a precious heritage value , and are fully reflected in the structure , shape , layout, and other aspects of the development of the the Hunan local ethnic characteristics and bridges course , an important part of the historical and cultural heritage of Hunan , has a very important position in the history of bridge construction in China . So far , however, the value of the ancient bridge in Hunan was not able to get enough attention , Hunan Old Bridge is still in the initial stages of research and conservation . Therefore , through the the Hunan the ancient bridge type and characteristics of the study can not only enrich the content of the study of the ancient bridge in Hunan , and can play an advocacy role , the degree of concern of the whole society of the ancient bridge , recognize its value positive action to protect this precious heritage . This article is based on the investigation of a large number of instances , the relevant information and documentation , and summarizes the main types of Hunan ancient bridge :: girder bridge , arch bridge , rope bridge and the wind and rain bridge . Hunan Province, natural and geographical conditions , the development of socio-cultural factors and historical conditions, and fully integrate all aspects of analysis of the characteristics of the various types of Hunan ancient bridge . Among them, the chosen representative of Old Bridge to be of help . Finally, for the conservation status of the ancient bridge , protection requirements and examples of ancient buildings , the value of the Old Bridge of Hunan evaluation, recommendations for its protection method .
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