A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High Strength Bolts for Bridges
An extensive experimental program was conducted to evaluate the performance of both black and galvanized high strength bolts for bridges. Seventy-two A325 black bolts, 145 hot-dip galvanized A325 bolts, 85 mechanically galvanized A325 bolts, and 83 black A490 bolts from several different suppliers, were tested under direct and torqued tension in order to evaluate the current installation practices and ASTM Standard requirements. The results indicate that a great deal of the problems associated with the performance of high strength bolts lies in the vagueness of the current ASTM Standards and the failure of the bolt suppliers to follow the requirements stated in these standards. A major recommendation in the study is to establish a unified standard which will cover the performance of fastener assemblages (bolt-nut-washer) under the responsibility of one committee. Guidelines for proper installation of high strength bolts are also given.
High Strength Bolts for Bridges
An extensive experimental program was conducted to evaluate the performance of both black and galvanized high strength bolts for bridges. Seventy-two A325 black bolts, 145 hot-dip galvanized A325 bolts, 85 mechanically galvanized A325 bolts, and 83 black A490 bolts from several different suppliers, were tested under direct and torqued tension in order to evaluate the current installation practices and ASTM Standard requirements. The results indicate that a great deal of the problems associated with the performance of high strength bolts lies in the vagueness of the current ASTM Standards and the failure of the bolt suppliers to follow the requirements stated in these standards. A major recommendation in the study is to establish a unified standard which will cover the performance of fastener assemblages (bolt-nut-washer) under the responsibility of one committee. Guidelines for proper installation of high strength bolts are also given.
High Strength Bolts for Bridges
J. Yura (author) / K. Frank (author) / D. Polyzois (author)
1987
148 pages
Report
No indication
English
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