Rapid Seismic Repair of Column to Footing Connections – Phase 2

Brodbeck, Taylor J; Shurow, Zachary A; Kowalsky, Mervyn J.; Seracino, Rudolf

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Rapid Seismic Repair of Column to Footing Connections – Phase 2

2021-05-31
By Brodbeck, Taylor J ; Shurow, Zachary A ; Kowalsky, Mervyn J.

File Language:

English

[PDF - 33.72 MB]

Details

Creators:

Brodbeck, Taylor J ; Shurow, Zachary A ; Kowalsky, Mervyn J. ; Seracino, Rudolf
Corporate Creators:

North Carolina State University. Department of Civil, Construction, and Environmental Engineering
Corporate Contributors:

Alaska. Department of Transportation and Public Facilities ; United States. Department of Transportation. Federal Highway Administration ; United States. Department of Transportation
Subject/TRT Terms:
Resource Type:

Tech Report
Geographical Coverage:

Alaska ; United States
Edition:

FINAL REPORT, Jan. 2019 through May 2022
Corporate Publisher:

Alaska. Department of Transportation and Public Facilities. Research, Development, and Technology Transfer ; United States. Department of Transportation. Federal Highway Administration
Abstract:

Presented in this report is the development of a rapid seismic repair of column to footing connections. The use of plastic hinge relocation as a repair technique for extreme levels of damage in reinforced concrete bridge columns is investigated. Before the development of this repair, if a column was severely damaged (e.g. had fractured longitudinal bars) a complete replacement of the bridge was suggested. Prior studies have already shown the repair’s ability to restore a damaged column’s load and displacement capacities, and its potential for rapid deployment is favorable. This research aimed to improve the repair constructability by using a bolted connection and methods for simplified implementation. Another goal of this research was to improve repair performance by anchoring previously fractured bars to increase seismic resistance, and enhance the behavior of the relocated hinge when these bars are anchored.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/64368/dot_64368_DS1.pdf
File Type:

[PDF - 33.72 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:61547bea901b5f26a9f6d0ccee3d1e2c48102ef534c9bc9fb31a0a3de574977e

File Language:

English

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