Robole, Jacob2017-10-092017-10-092017-06https://hdl.handle.net/11299/190580University of Minnesota M.S. thesis. June 2017. Major: Civil Engineering. Advisor: Arturo Schultz. 1 computer file (PDF); xii, 135 pages.A method for measuring the transfer length of prestressing strand in HCS using a distributed strain sensor (DSS) was proposed. This DSS consists of a strip of material with strain gauges pre-attached to it. The DSS can then be attached to the HCS to measure strain when the strands are released. A finite element analysis was conducted to determine the feasibility of the proposed method. Experimental tests were then conducted to determine the proper adhesive for attaching the DSS to the HCS. Full-scale laboratory tests were subsequently conducted on a HCS that was loaded, and the strains measured on the HCS were compared to the strains recorded by the DSS. Lastly, two tests were conducted at a precast concrete plant to measure the transfer length in HCS.enHollow Core SlabsPrestressed ConcreteTransfer LengthThesis or Dissertation