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With the rapid development of China 's highway , as well as the implementation of the western development strategy , more and more , of the construction of the highway in the mountains . Mountain complex geological terrain , mountain highway bridge has its own characteristics , and therefore has important practical significance to the research of mountain highway bridge design method . The author, based on the experience of recent years, a number of mountain highway bridge design work , common focus their design process , difficult problems of analysis and research , and propose an empirical solution . This article will examine the contents are divided into the following four parts : first , drawn up on the mountain highway bridge superstructure design prefabricated structures programs and beam , board layout a comprehensive analysis , is given in conjunction with their work practices detailed specific practical layout . Mountain highway bridge superstructure design prestressed should pay attention to the stress analysis in situ concrete structure with beam process research , in conjunction with their experience in the design structural stress analysis results of the merits of the evaluation parameters stress evenly coefficient wool , and through the concrete bridge design examples to prove the effectiveness of optimizing the structure with beam the stress uniformity coefficient ξ . Mountain highway in special high pier in the lower part of the continuous beam structural design of flexible high pier design method of analysis , given the appropriate conclusions . Fourth, the basic design of the mountain bridge complex engineering geological conditions under analysis and research , design and engineering examples given . From the upper part of the structural design of the bridge design , the three aspects of the lower part of the design as well as the basis of design , combined with the characteristics of mountain bridge , a common problem in the design of this three-part focus on analysis study , summarizes the design evaluation methods and practical design method for the high speed of the Mountain the highway bridge design reference .
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