| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.21 ( November 1989 ) Civil and Architectural Engineering ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Development of Computer Aided Backup System for Bridge Manufacturing Senji Yamaguchi, Norihisa Kobayashi, Ei-ichi Ohya, Hiroshi Yamamoto |
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Synopsis : Kawaden Co., Ltd. has developed an automatic mold lofting, an indispensable process for steel bridge manufacturing, and consequently a computer aided backup system for bridge manufacturing works has been established, which enables the works a continuous operation from design stage to mold lofting process. The know-how which is peculiar to our works, such as bridge fabrication procedure and shrinkage of steel material at welding, has been taken into consideration in the system. The characteristics of this system are as follows: (1) Special shaped end section of the girder which is frequently dealt with is covered. (2) Mutual interference of bridge members can be automatically detected. (3) Output form of mold lofting documents can be easily arranged in accordance with the requests of clients. (4) Man-hour-per-ton necessary for a bridge mold lofting is similar to those calculated by conventional calculation centers in Japan, but can be reduced to nearly 65% of that for manual lofting. |
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