The Long-Term Bridge Performance (LTBP) Program Bridge Portal
01 May 2016-
TL;DR: The paper describes a key product of the LTBP program, the Bridge Portal, which contains bridge performancerelated data mined from existing sources, but it also serves as a central repository for all field data collected through the LT BP Program.
Abstract: The Long-Term Bridge Performance (LTBP) Program is a 20-year research effort by the U.S. Federal Highway Administration (FHWA) to collect scientific performance field data from a representative sample of bridges nationwide that will help the bridge community better understands bridge deterioration and performance. The products from this program will be a collection of data-driven tools, including predictive and forecasting models, which will enhance the abilities of bridge owners to optimize their management of bridges. The paper describes a key product of the LTBP program, the Bridge Portal, which contains bridge performancerelated data mined from existing sources (National Bridge Inventory, State Highway Agency bridge element level data, national weather data, traffic data, weigh-in-motion data, bridge maintenance data, and other data sources), but it also serves as a central repository for all field data collected through the LTBP Program. Additionally, the Bridge Portal also functions as a research and decision-making tool by implementing bridge life-cycle and deterioration modeling using both mined data sources as well as LTBP-acquired field data to allow users to investigate bridge performance on many different levels.
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01 Mar 2019
TL;DR: In this paper, a survey was developed and distributed to state DOTs to evaluate the performance of FDPC deck panels compared to conventional cast-in-place (CIP) decks.
Abstract: Full-depth, precast concrete deck panels have been heavily used in bridge construction since the 1970’s. The use of these panels has traditionally been thought to both accelerate construction and improve the long-term durability performance of the bridge deck. While many engineers and academia are intrinsically aware that confined precast can perform equally or better than nonconfined, cast-in-place concrete, evaluation between the two has never been studied holistically. The main objective of this project was to determine the in-service performance of full-depth, precast concrete (FDPC) deck panels compared to conventional cast-in-place (CIP) decks. The secondary objective is to determine successful and problematic details for these members. A survey was developed and distributed to state DOTs. Survey responses were used to develop the FDPC Deck Panel Database. Results from the DOT survey and analysis of the FDPC Deck Panel Database are discussed in this report.
11 citations
Cites background from "The Long-Term Bridge Performance (L..."
...22 and deterioration models to predict the future condition of bridges [20], although there is a substantial amount of work yet required to achieve this goal....
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01 Mar 2019
TL;DR: In this paper, a survey was developed and distributed to state DOTs to evaluate the performance of FDPC deck panels compared to conventional cast-in-place (CIP) decks.
Abstract: Full-depth, precast concrete deck panels have been heavily used in bridge construction since the 1970’s. The use of these panels has traditionally been thought to both accelerate construction and improve the long-term durability performance of the bridge deck. While many engineers and academia are intrinsically aware that confined precast can perform equally or better than nonconfined, cast-in-place concrete, evaluation between the two has never been studied holistically. The main objective of this project was to determine the in-service performance of full-depth, precast concrete (FDPC) deck panels compared to conventional cast-in-place (CIP) decks. The secondary objective is to determine successful and problematic details for these members. A survey was developed and distributed to state DOTs. Survey responses were used to develop the FDPC Deck Panel Database. Results from the DOT survey and analysis of the FDPC Deck Panel Database are discussed in this report.
11 citations