Preface  

With the economic development of our country, the number of basic engineering  projects is increasing, which has received widespread attention. For basic engineering  projects, the construction of roads and bridges is particularly important. In recent years,  China has paid more and more attention to the construction of roads and bridges.  Therefore, the construction of roads and bridges has been well developed. However,  during the development process, more and more hidden problems existed in in the design  of road and bridge came to the surface, which have seriously affected the quality of roads  and bridges, and even caused safety accidents. These problems not only endanger people’s  lives, but also bring greater losses to the country’s property. To avoid the increase of safety  accidents, we have to ensure the quality of road and bridge design.  As the advancement of urbanization and modernization pace in our society, roads and  bridges play more and more important roles. They can not only help people travel  conveniently, but also serve as an important channel for communication and trade between  cities, and play a role in promoting social and economic development. Although the  current construction organizations has the corresponding quality awareness and  technical foundation for the construction of roads and bridges, in the design of roads and  bridges, either due to insufficient material configuration or insufficient comprehensive  quality of designers, hidden dangers still exsit in the design of roads and bridges.  As a public infrastructure, roads and bridges provide convenience for people's travel.  However, with the improvement of people's living standards, our requirements for  infrastructure have also increased. In order to improve the quality of roads and bridges,  firstly we need to improve the design of roads and bridges, and then to strengthen the  construction and management of them. 

前 言  

随着我国经济的发展，基础工程项目建设的数量越来越多，并且受到了人们的 广泛关注。在基础工程项目中，道路桥梁的建设尤为重要，近年来，我国越来越重 视道路桥梁建设，因此，道路桥梁建设得到了很好地发展，不过在发展的过程中， 道路桥梁设计中存在的隐患问题越来越多，严重的影响了道路桥梁的质量，甚至引 发了安全事故，不仅危害了人们的生命安全，同时给国家的财产带来较大的损失， 为了避免安全事故的发展，就需要保证道路桥梁设计的质量。 我国社会城市化、现代化步伐不断推进，道路桥梁的重要意义日益凸显，不仅 能够帮助人们提供出行的便利，而且作为各个城市间沟通和贸易往来的重要渠道， 对社会经济的发展起到助力作用。虽然目前施工单位已经具备相应的质量意识和对 道路桥梁进行施工的技术基础，但针对道路桥梁的设计工作中，或是由于材料配置 不够周密，或是由于设计人员综合素养不足，导致道路桥梁仍然存在隐患。 道路桥梁作为公共基础设施，为人们的出行提供了便利。但随着人们生活水平 的提高，人们对于基础设施的要求也不断提高。而要提高道路桥梁的质量首先要提 高道路桥梁的设计，其次才是加强道路桥梁的施工与管理。