Field testing of steel H-piles in clay, sand, and mixed soils and data analysis

773920500Final report - volume II.PDFTech ReportIHRB Project TR-583Bridge foundationsBridge piersLoadsLoad factorDesign loadStatic loadsIowaIowa State University. Institute for TransportationNg, Kam WengSuleiman, Muhannad T.Roling, MatthewAbdelSalam, Sherif S.Sritharan, SriIowa State University. Institute for TransportationIowa. Highway Research BoardIowa. Dept. of TransportationNTL-HIGHWAY/ROAD TRANSPORTATION-Bridges and StructuresNTL-HIGHWAY/ROAD TRANSPORTATION-HIGHWAY/ROAD TRANSPORTATIONNTL-HIGHWAY/ROAD TRANSPORTATION-Construction and MaintenanceNTL-HIGHWAY/ROAD TRANSPORTATION-DesignNTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and PerformanceUS Transportation CollectionIn response to the mandate on Load and Resistance Factor Design (LRFD) implementations by the Federal Highway Administration(FHWA) on all new bridge projects initiated after October 1, 2007, the Iowa Highway Research Board (IHRB) sponsored these researchprojects to develop regional LRFD recommendations.The LRFD development was performed using the Iowa Department of Transportation (DOT) Pile Load Test database (PILOT). Toincrease the data points for LRFD development, develop LRFD recommendations for dynamic methods, and validate the results ofLRFD calibration, 10 full-scale field tests on the most commonly used steel H-piles (e.g., HP 10 x 42) were conducted throughout Iowa.Detailed in situ soil investigations were carried out, push-in pressure cells were installed, and laboratory soil tests were performed. Pileresponses during driving, at the end of driving (EOD), and at re-strikes were monitored using the Pile Driving Analyzer (PDA),following with the CAse Pile Wave Analysis Program (CAPWAP) analysis. The hammer blow counts were recorded for Wave EquationAnalysis Program (WEAP) and dynamic formulas.Static load tests (SLTs) were performed and the pile capacities were determined based on the Davisson\ue2\u20ac\u2122s criteria. The extensiveexperimental research studies generated important data for analytical and computational investigations. The SLT measured loaddisplacementswere compared with the simulated results obtained using a model of the TZPILE program and using the modifiedborehole shear test method. Two analytical pile setup quantification methods, in terms of soil properties, were developed and validated.A new calibration procedure was developed to incorporate pile setup into LRFD