序北京铁路局冯振九设计质量是工程质量的先导与基础。由于设计质量通病是工程设计中经常发生和普遍存在的质量问题，因此对建筑工程质量影响广泛，危害大，是进一步提高工程质量的主要障碍之一。继去年我们组织编撰《建筑工程施工质量通病预防对策》专刊之后，今年又组织... Preface Beijing Railway Bureau Feng Zhenjiu design quality is the forerunner and foundation of project quality. Due to the common quality problems that often occur in engineering design due to design quality defects, it has a wide range of impacts on the quality of construction projects. It is one of the major obstacles to further improve project quality. After organizing a special issue of “Prevention Measures for Construction Quality Common Diseases” organized by us last year, we organized this year...