The space under the railway viaduct is nowadays used for many purposes. Sometimes there are fires under the viaduct. This paper describes about the reinforced concrete structures damaged by fire and some plans of repair.
The Chugoku Exway Sabagawa Bridge is perstressed concrete 4 continuous box type of bridge length 150m and cross on the Saba River in Tokuzi Town Yamaguchi Prefectural. This bridge was constructed by the incremental lounching method of Taktschiebe Leonhardt. The report is to describe the design and construction of the Sabagawa Bridge.
This paper reports the concreting method to prevent the occurrence of cold joints in the construction of the refrigerator warehouse. The refrigerator warehouse is required gastightness, therefor cold joints in walls will be fatal defect of the concrete structure. We developed the jointing method of concrete with delayed addition of super retarder of setting agent to prevent the occurence of cold joints and have acquired desirable result in the actual concrete construction. This paper refers to some pre-construction experiments for the development of jointing method and the work results.