Precast Bridge Deck Panel Joint Testing
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2025-01-02
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Edition:Final Report 8/1/22 – 1/2/25
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Abstract:This project investigated the effect of various experimental parameters on the static flexural capacity of longitudinal joints in Commonwealth of Pennsylvania precast concrete bridge deck panel systems. The laboratory component of this study included fifteen full-scale static flexural tests of laboratory-assembled precast concrete deck systems that were conducted at the Lafayette College Concrete Lab (LCCL) in Easton, Pennsylvania, USA. Most notably, the experimental design explored the influence of (a) different reinforcing steel details within the joint (e.g. reinforcing bar termination details, reinforcing bar spacing, joint lap length, and reinforcing bar size) and (b) the influence of different commercially available specialty joint materials on structural specimen behavior, joint cost, and constructability. As a result of the experimental work, the research team proposed various revisions to current PennDOT design and construction standards that reflect proposed implementations. Specifically, joint details and geometries are proposed for longitudinal and transverse bridge deck panel joints with ultra-high-performance concrete (UHPC). The use of various polymer concrete products is recommended for conditional use in various configurations of transverse joints only. Further research is recommended to evaluate the durability of various joint details under repeated service-level cyclic loading and to further explore the potential implementations of polymer concrete products in longitudinal closure pours.
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Main Document Checksum:urn:sha-512:6f9e89b8290198d2afdbf6c3305f554e4f4436d5325cb9ae2facc36608f004b5a4a42953abb6d6c12c8b51361ee9fd9dabd7a0cd527cc8f1a9906f88bd45e08c
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