Behavior of Prestressed Concrete Piles Supporting Integral Abutments

Jointless and Smoother Bridges: Behavior and Design of Piles

“…The limits were set as follows: 300-ft for steel bridges, 500-ft for castin-place concrete bridges, and 600-ft for prestressed concrete bridges. However, as reported by Burdette, et al (2002), the Tennessee Department of Transportation (TDOT) has used longer lengths for integral abutment bridges. Wasserman provides several recommendations about pile configuration, pile orientation, anchorage of beam to pile cap, and backfill (Wasserman, 1996).…”

“…Although all multiplexers were operational, several gages were out-of-range due to damage to the recharging system. May 13,2002 The multiplexers were removed and repaired by INDOT. May 29, 2002 The datalogger was removed and sent to Campbell Scientific for repair.…”

Performance of abutment–backfill system under thermal variations in integral bridges built on clay

“…Since many transportation departments tend to push up the envelope of the length limits of integral bridges (e.g. the Tennessee Department of Transportation in the USA has built integral bridges with lengths up to 358 m [3]), the abutments of such long bridges may be subjected to large forces in excess of their ultimate shear or flexural capacity. Such large forces may be generated by the passive backfill pressure and restraining effects of the pile-soil system as the abutments are pushed towards the backfill soil due to positive thermal variations.…”

Effect of cyclic thermal loading on the performance of steel H-piles in integral bridges with stub-abutments

“…The data presented in Table 9 revealed that the maximum length limit for concrete integral bridges ranges between 150 and 265 m in cold climates and 180 and 320 m in moderate climates and that for steel integral bridges range between 80 and 145 m in cold climates and 125 and 220 m in moderate climates for different pile sizes. It is noteworthy that the results from the full-scale tests at the University of Tennessee [19] on integral bridges resting on clay recommend length limits for integral bridges, which are based on an average 35-mm displacement limit for the piles at the abutments. This is in close agreement with the pile displacement limits for medium to medium-stiff clay, hence the integral bridge length limits proposed in this study.…”