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全面分析了我国与其他国家之间的桥梁结构在传力体系上的区别,并且对比研究了中美、中日等国家在抗震规范中的支座验算公式,认识到中国桥梁建设的特殊情况,在传力体系、路径等方面应针对中国的实际情况制定相应的标准规范;分析了当今我国公桥设计规范的优缺点和存在的问题,通过国外抗震结构的特点和桥梁结构的传力体系的不同,提出了我国抗震的新规范方法,以及抗震验算的新公式;并重新划分桥梁抗震新的标准,采用地震动标准当做抗震指数来判定,以期能够解决路桥抗震规范所出现的缺点和弊端,以及满足公桥在防震、抗震的质量和要求,从而使抗震更加具体完善。
This paper comprehensively analyzes the differences between the bridge structures in our country and other countries in the force transmission system and compares the formulas for checking the support in earthquake resistance codes of China, the United States, China and Japan. Recognizing the special circumstances of bridge construction in China, In the transmission system, the path should be based on the actual situation in China to develop appropriate standards and norms; analysis of today’s national bridge design specifications of the advantages and disadvantages and existing problems through the characteristics of foreign seismic structure and the bridge structure of the transmission system The paper proposed a new standard method for earthquake resistance in our country and a new formula for earthquake proofing test. The new standard for earthquake resistance of bridges was re-classified. The standard of seismic motion was taken as the seismic index to determine the shortcomings and defects of the seismic code for road and bridge. As well as to meet the public bridge in the earthquake, earthquake quality and requirements, so that earthquake more concrete improvement.