Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Research in Progress (RIP) https://rip.trb.org/Images/PageHeader-wTitle-RIP.jpg https://rip.trb.org/ Assessing The Capacity of Four Steel Hinges Extracted from Existing Bridges https://rip.trb.org/View/2607888 Wed, 08 Oct 2025 09:44:28 GMT https://rip.trb.org/View/2607888 Prefabricated Bridge Columns with Self-Centering Capability Using Shape Memory Alloy (SMA) And Ultra-High Performance Concrete (UHPC) In Plastic Regions https://rip.trb.org/View/2404251 Sun, 21 Jul 2024 14:44:54 GMT https://rip.trb.org/View/2404251 Rapid Repair of Column to Footing Phase 2 https://rip.trb.org/View/1531903 Mon, 13 Aug 2018 19:30:03 GMT https://rip.trb.org/View/1531903 Design and Performance of Micropile Supported Integral Abutment Bridges https://rip.trb.org/View/1498118 Mon, 22 Jan 2018 10:51:15 GMT https://rip.trb.org/View/1498118 Ductile Behavior of Reinforced Concrete Arch Ribs – Plastic Hinging under High Compressive Axial Loads https://rip.trb.org/View/1441855 Wed, 04 Jan 2017 10:54:39 GMT https://rip.trb.org/View/1441855 Evaluation of Seismic Performance of Bridge Columns with Couplers and Development of Design Guideline https://rip.trb.org/View/1398655 Mon, 22 Feb 2016 15:48:57 GMT https://rip.trb.org/View/1398655 Development and Seismic Evaluation of Pier Systems with Pocket Connections and Hollow PT/UHPC Column https://rip.trb.org/View/1398654 Mon, 22 Feb 2016 15:45:07 GMT https://rip.trb.org/View/1398654 Enhancement of National LRFD Codes for California Bridge Design: Hinge Curl Research https://rip.trb.org/View/1234214 Thu, 03 Jan 2013 15:08:38 GMT https://rip.trb.org/View/1234214