The implementation of seismic isolation in the retrofit of a large wharf
DOI:
https://doi.org/10.5459/bnzsee.36.3.208-217Abstract
The paper describes the implementation of lead-rubber bearings as energy absorbers as part of the retrofit and upgrade of a large wharf. The key design requirement of the seismic retrofit was to ensure that the limited ductility capacity of the existing wharf piles was not exceeded. This was achieved by providing additional lateral restraint to the wharf in the form of groups of raking piles fastened to the wharf via post-tensioned lead-rubber bearings acting as energy absorbers.
References
Concrete Structures Standard (1995). New Zealand Standards Association.
Beca, Carter, Hollings and Ferner (1996). Princes Wharf Seismic Hazard Assessment, May.
Tonkin and Taylor (1997). Revision to Preliminary Geotechnical report for the Proposed Stage One Redevelopment at Princes Wharf, Sept.
NZNSEE (1996), The Assessment and Improvement of the Structural Performance of Earthquake Risk Buildings, Draft June.
Priestley, Seible and Calvi (1996), Seismic Design and Retrofit of Bridges, Wiley Interscience. DOI: https://doi.org/10.1002/9780470172858
NZS 4203: 1992, Code o f practice for General Structural Design and Design Loadings for Buildings, Standards New Zealand.
Monti, M.D., et al (1998) Development and Application of a 100 tonne Damper, NZNSEE Technical Conference, Wairakei, March.
