Abstract: Eleven one‐tenth scale tubular steel pile tests are conducted to establish the behavior of pinned‐head friction piles in loose sand, fixed‐head friction piles in both loose and compacted sand, and a fixed‐head bearing pile ...

Abstract: Inspection and rating of public infrastructure has become a focus of many recent studies because of well-documented deterioration and failure case studies. A new indirect inspection technique using ultrasonic spread-spectrum ...

Abstract: Uncertainty in basic structural parameters is characterized by objective and subjective information. A method was developed to quantify this uncertainty and propagate its effect through a structural reliability analysis. ...

Abstract: A state‐of‐the‐art, three‐dimensional, nonlinear finite element algorithm is developed and used to study piling stresses and pile‐soil interaction in integral abutment bridges. The finite element idealization consists of ...

Abstract: Possible lightning damage to a concrete farm silo in northeast Iowa prompted a research study of the damaging effects of lightning strokes on concrete. Lightning damage to concrete was studied by reviewing other writings ...

Abstract: Abutment piles for a jointless bridge are subjected to lateral displacement as the bridge superstructure expands and contracts. The piles must be designed to satisfy the strength criteria of a structural member and the ...

Abstract: For much of its early history, the U.S. Army Corps of Engineers concentrated on the design and construction of new facilities, but now the mission of the corps is shifting from construction to the maintenance of existing ...

Abstract: A state‐of‐the‐art nonlinear finite element algorithm for pile‐soil interaction has been developed and implemented in a modular computer program to study the effects of predrilled oversize holes and layered soils on the ...

Abstract: The U.S. Army Corps of Engineers establishes the Repair, Evaluation, Maintenance, and Rehabilitation (REMR) program to focus more attention on deterioration rates of civil works structures. An Iowa State University (ISU) ...