精品91一区二区三区_国产亚洲日本一区二区三区_又硬又粗进去爽A片免费_国产成人精品曰本亚洲77美色_国产片婬乱一级毛片a_欧美xxxx做受欧美gay,国产欧美在线不卡_国产精品一二三区日韩免费_狠狠久久五月精品中文字幕_老子影院午夜伦手机不四虎卡_人妻老妇乱子伦精品无码专区_国产成人手机在线视频在线观看

Yuhe bridge, Chongwen street, Weifang City, is located on the east side of Beihai Road. It is a reinforced concrete hollow arch bridge with a net span of 40m and a total bridge deck width of 22m. The cross section is arranged as 3M sidewalk + 16m motorway + 3M sidewalk, with a design life of 100 years and a seismic intensity of 7 degrees. C40 and C30 concrete are used for the main body, 4cmac-13 fine-grained modified asphalt concrete + 6cmac-20 modified asphalt concrete are used for the pavement of the carriageway, cherry red granite fire plate is used for the pavement of the sidewalk, and mirror cherry red granite is used for the kerb. Won the 2015 Shandong municipal gold cup demonstration project award.