WebInfluence of Flexure-Shear Cracking on Strand Development Length in Prestressed Concrete Members Robert J. Peterman, Ph.D., P.E. In this study, 18 development length tests were Assistant Professor Kansas State University* carried out on single strand rectangular and Department of Civil Engineering multiple strand T-shaped semi-lightweight beams … Weband the Peterman test is a pass/fail quality assurance test utilizing prestressed beams. 7. PETERMAN BEAM TEST The Peterman Beam test is a quality assurance test developed by Robert J Peterman in 2009 at Kansas State University to assess strand-bond properties relative to specific concrete mix designs.
EFFECTS OF SETUP AND MATERIAL PARAMETERS ON THE …
Web1. máj 2024 · Development lengths and bond performance of 12.5 mm diameter, Grade 270 prestressing strand were evaluated using rectangular beams and the North American Strand Producers (NASP) test for both normal and high strength CC and SCC mixes. (The NASP test has now been formally adopted as ASTM A1081.) WebCONDUCTING PRECISION STRESS-RELAXATION TESTS RJ Peterman & Associates conducts stress-relaxation tests for a variety of customers in the prestressing wire and strand industry. In 2007, we began researching the best way to set up and conduct long-term stress relaxation tests. the sill bardon mill
Reliable Transfer Length Assessment for Real-Time Monitoring of ...
WebThis semi-lightweight concrete weighs around 2080 kg/m . In a study sponsored by the FHWA, the current AASHTO equations for the calculation of transfer and development lengths of prestressing strand were found to be unconservative in the case of lightweight concrete members with unit weight less than 1 920 kg/m 3 . WebIn this video we discuss the basics of Ground Bond and Ground Continuity testing. Join us as we take you to our whiteboard where we give you a visual diagram of the tests, then show you a... Web1. máj 2007 · The Effects of As-Cast Depth and Concrete Fluidity on Strand Bond R. Peterman Published 1 May 2007 Engineering Pci Journal This paper presents the results from strand end-slip measurements and load tests of members that were fabricated at six different precast concrete plants over the past 2 1/2 years. my trip travelport