Add to ORKGThis study investigated retrofitting measures for improving the seismic performance of the foundations of existing bridges. Tests were conducted on 1/3-scale footing and column assemblages which incorporated details selected to represent deficiencies common in older bridges. Tests on as-built specimens resulted in a brittle failure due to insufficient joint shear strength in the column/footing connection. An added reinforced concrete overlay provided an effective retrofit for the as-built footings. Increased overturning resistance was achieved by enlarging the footing plan size, by providing additional piles, or by providing tie-downs through the footing. For multi-column bents, the addition of a stiff link beam just above the footings was ...
Reinforced concrete bridge columns built prior to 1971 cannot withstand earthquake forces due to ins...
This study focused on the development of retrofit methods for octagonal columns supported on pedesta...
There are a large number of bridges throughout the United States in need of repair or replacement to...
Bridges like other important lifeline structures must remain in service when they are subjected to s...
Feasibility of a proposed seismic retrofitting technique for typical bridges in the Central US has b...
Due to recent earthquakes and the ensuing damage, there has been some concern regarding the adequacy...
Reversed cyclic loading tests were carried out on a number of specimens including five half-scale re...
Report No. CCEER-95-4The purpose of this study was to evaluate and improve the seismic resistance of...
This research project is the second part of a research program carried out by Itagawa (2005) who stu...
This thesis describes the experimental set-up and testing of two scale models of particular piers ...
Highway bridges constitute a large portion of the national wealth and build up the foundation for ec...
Report No. CCEER-99-1This study was undertaken to provide a seismic retrofit design for flared bridg...
Report No. CCEER 02-1With the objective of studying the seismic behavior of two-column bents with dr...
Many bridges in North Eastern region of U.S. were designed prior to the adoption of the AASHTO LRFD ...
Since the early 1970's the design procedures and techniques for building earthquake-resistant bridge...
Reinforced concrete bridge columns built prior to 1971 cannot withstand earthquake forces due to ins...
This study focused on the development of retrofit methods for octagonal columns supported on pedesta...
There are a large number of bridges throughout the United States in need of repair or replacement to...
Bridges like other important lifeline structures must remain in service when they are subjected to s...
Feasibility of a proposed seismic retrofitting technique for typical bridges in the Central US has b...
Due to recent earthquakes and the ensuing damage, there has been some concern regarding the adequacy...
Reversed cyclic loading tests were carried out on a number of specimens including five half-scale re...
Report No. CCEER-95-4The purpose of this study was to evaluate and improve the seismic resistance of...
This research project is the second part of a research program carried out by Itagawa (2005) who stu...
This thesis describes the experimental set-up and testing of two scale models of particular piers ...
Highway bridges constitute a large portion of the national wealth and build up the foundation for ec...
Report No. CCEER-99-1This study was undertaken to provide a seismic retrofit design for flared bridg...
Report No. CCEER 02-1With the objective of studying the seismic behavior of two-column bents with dr...
Many bridges in North Eastern region of U.S. were designed prior to the adoption of the AASHTO LRFD ...
Since the early 1970's the design procedures and techniques for building earthquake-resistant bridge...
Reinforced concrete bridge columns built prior to 1971 cannot withstand earthquake forces due to ins...
This study focused on the development of retrofit methods for octagonal columns supported on pedesta...
There are a large number of bridges throughout the United States in need of repair or replacement to...