Adaptive Camber Precast Concrete Girder for Deflection Mitigation of Highway Bridges

Sychterz, Ann; Henschen, Jacob; University of Illinois at Urbana-Champaign. Department of Civil and Environmental Engineering

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Adaptive Camber Precast Concrete Girder for Deflection Mitigation of Highway Bridges

2024-12-01
By Sychterz, Ann ; Henschen, Jacob

[PDF-2.53 MB]

English

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Creators:

Sychterz, Ann ; Henschen, Jacob

Sychterz, Ann ; Henschen, Jacob Less -
Corporate Creators:

University of Illinois at Urbana-Champaign. Department of Civil and Environmental Engineering
Corporate Contributors:

Transportation Infrastructure Precast Innovation Center (TRANS-IPIC) Tier-1 University Transportation Center (UTC) ; United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology

Transportation Infrastructure Precast Innovation Center (TRANS-IPIC) Tier-1 University Transportation Center (UTC) ; United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology Less -
Subject/TRT Terms:

[+]

Concrete Bridges Deflection Girders Precast Concrete
Publication/ Report Number:

UI-23-RP-04
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Report (September 2023 - December 2024)
Corporate Publisher:

Transportation Infrastructure Precast Innovation Center (TRANS-IPIC) Tier-1 University Transportation Center (UTC)
Abstract:

Camber in precast and prestressed concrete is currently designed using best practices in structural engineering and subject to climate and loading uncertainties. Applying new technology of adaptive structures, large shape change in response to load, to precast concrete bridge girders would pioneer a new innovative field of research and design. This work building, analyzing, and validating an adaptive precast girder system that will use expanding anchors to camber the compression face of the girder to counteract imposed loads. By providing on-demand camber, sizing of the precast member for deflection criteria can be reduced. Through this form of topology optimization, reduction in concrete volume will increase the sustainability of the structural system. Laboratory experiments have lead to fundamental science and implementable technology. Adaptive precast girders can address long-term effects of creep and changing design loads over the lifetime of highway bridges.
Format:

PDF
Funding:

69A3552348333
Collection(s):

University Transportation Centers
Main Document Checksum:

[+]

urn:sha-512:3f2a2504e9e2e0f54c7ad341c9499d62bd03b26386bd0358033b5eae5ea0990d3a07ac9b3539486ba4d98a20fa0c5d1313d4fd3a11d227850b8ba09c2c34983c
Download URL:

https://rosap.ntl.bts.gov/view/dot/80438/dot_80438_DS1.pdf
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Adaptive Camber Precast Concrete Girder for Deflection Mitigation of Highway Bridges

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