Nonaxial Uplift Tests on Straight and Belled Auger Model Footings,

摘要

A second series of model tests has been conducted to expand on data previously obtained on pullout forces on belled and straight auger footings used for transmission line towers. This test was performed to determine the effect of different angles of pullout on the load resistance of these two footing types which were cast-in-place in a compacted silty clay. The tests were performed on instrumented,reinforced concrete model footings. The results show that the greatest load resistance is obtained with a belled footing and also is greater when the pullout force is at an angle.