A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Factors Affecting Anchor Bolt Development
This report summarizes the results of laboratory tests to evaluate various factors which affect the development of the tensile yield capacity of high strength steel anchor bolts in drilled shaft specimens. The specimens and the method of loading were designed to simulate field conditions related to the anchoring of highway sign support structures. Thirteen shaft specimens containing 26 high strength bolts were tested. The anchor bolt diameters were 1 1/4 in. and 2 in. with embedment lengths of 10 diameters. End anchorages consisted of a standard nut except for one series in which the anchorage was a 90-degree bend. Important conclusions of the study are: 1. The method of loading the shaft has a very significant effect on the behavior of the anchor bolt. The end slip was almost tripled when no lateral load was applied in the length of the bolt. 2. The amount of concrete cover over the anchor bolt was an important factor in the development of the tensile strength of the bolt. However it did not show any significant effect on the slip behavior. 3. The limited series of tests with 90-degree bends showed that the particular length of hook used was not as effective as a standard nut anchor in developing positive slip resistance. (Author)
Factors Affecting Anchor Bolt Development
This report summarizes the results of laboratory tests to evaluate various factors which affect the development of the tensile yield capacity of high strength steel anchor bolts in drilled shaft specimens. The specimens and the method of loading were designed to simulate field conditions related to the anchoring of highway sign support structures. Thirteen shaft specimens containing 26 high strength bolts were tested. The anchor bolt diameters were 1 1/4 in. and 2 in. with embedment lengths of 10 diameters. End anchorages consisted of a standard nut except for one series in which the anchorage was a 90-degree bend. Important conclusions of the study are: 1. The method of loading the shaft has a very significant effect on the behavior of the anchor bolt. The end slip was almost tripled when no lateral load was applied in the length of the bolt. 2. The amount of concrete cover over the anchor bolt was an important factor in the development of the tensile strength of the bolt. However it did not show any significant effect on the slip behavior. 3. The limited series of tests with 90-degree bends showed that the particular length of hook used was not as effective as a standard nut anchor in developing positive slip resistance. (Author)
Factors Affecting Anchor Bolt Development
D. W. Lee (author) / J. E. Breen (author)
1966
68 pages
Report
No indication
English