A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic Performance of Self-Consolidating Concrete Bridge Columns
The high amount of confining lateral steel required by seismic design provisions for rectangular bridge columns can cause steel congestion. The high amount of confining steel may hinder the placement of conventional concrete (CC). Self-consolidating concrete (SCC) eliminates or reduces concrete placement and consolidation issues in concrete members with steel congestion. There are limited data, however, on the seismic performance of SCC bridge columns. This study included experimental investigations to assess the stress-strain relationships of SCC mixes and the seismic performance of rectangular SCC bridge columns. SCC mixes, control CC mixes, and rectangular columns were tested. Experimental results of the concrete mixes showed that the strain at strength and the ultimate strain of SCC are higher than those of CC, while concrete ductility and the elastic modulus of SCC are lower than those of CC. Experimental results of the column tests showed that the use of SCC reduces displacement ductility and energy dissipation but increases drift ratio at failure. The SCC column performance under inelastic cyclic lateral loading was found to be satisfactory and comparable to that of CC columns.
Seismic Performance of Self-Consolidating Concrete Bridge Columns
The high amount of confining lateral steel required by seismic design provisions for rectangular bridge columns can cause steel congestion. The high amount of confining steel may hinder the placement of conventional concrete (CC). Self-consolidating concrete (SCC) eliminates or reduces concrete placement and consolidation issues in concrete members with steel congestion. There are limited data, however, on the seismic performance of SCC bridge columns. This study included experimental investigations to assess the stress-strain relationships of SCC mixes and the seismic performance of rectangular SCC bridge columns. SCC mixes, control CC mixes, and rectangular columns were tested. Experimental results of the concrete mixes showed that the strain at strength and the ultimate strain of SCC are higher than those of CC, while concrete ductility and the elastic modulus of SCC are lower than those of CC. Experimental results of the column tests showed that the use of SCC reduces displacement ductility and energy dissipation but increases drift ratio at failure. The SCC column performance under inelastic cyclic lateral loading was found to be satisfactory and comparable to that of CC columns.
Seismic Performance of Self-Consolidating Concrete Bridge Columns
N. I. Wehbe (author) / A. A. Ghadban (author) / T. Pauly (author)
2017
159 pages
Report
No indication
English
Self-Consolidating Concrete Columns under Concentric Compression
| Online Contents | 2008
Structural response of self-consolidating concrete columns
| British Library Conference Proceedings | 1999
Structural Performance of Self-Consolidating Concrete Used in Confined Concrete Columns
| Online Contents | 2005
Bond Performance in Self-Consolidating Concrete Pretensioned Bridge Girders.
| Online Contents | 2013
Using Self-Consolidating Concrete for Bridge Repairs
| Online Contents | 2015