Improving the Seismic Performance of Important Hospitals Presentation

Improving the Seismic Performance of Important Hospitals Presentation by David C Hopkins and Stephen Do Robinson Seismic Limited Wellington New Zealand Indonesia – New Zealand Co-hosted Conference on Disaster Risk Management Jakarta, 5 -6 August 2008

Outline of Presentation 1. Wellington – birthplace of the lead-rubber bearing for seismic isolation 2. Some New Zealand examples 3. Benefits of seismic isolation 4. Hospitals and seismic isolation

Wellington is wonderful!

But……….

ve ha s it … … oe d f its ul a !! ts

Te Papa Seismic base Isolation Dr Bill Robinson on the steps of Parliament House, which was retrofitted with his leadrubber dampers. The world famous lead-rubber bearing: – protects buildings and contents – was invented here in Wellington, New Zealand

Museum of New Zealand Te Papa Tongarewa Isolators protect the new building and the old contents

Parliamentary Library Wellington A valued historic building – near the fault line

• Rankine Brown Library University of Wellington Isolated without interruption to its function Victoria

Lead Rubber Bearing Lo. Glider Ro. Glider

Rigorous testing required

Benefits of seismic isolation • Reduced building response: – Accelerations – Velocities – Inter-storey displacements • Protection of contents • Reduced damage • Minimal disruption

Particular benefits for hospitals • High demand for hospital services following earthquake • Proven functionality during and after earthquake. • Can be used to protect other buildings housing key staff. For example nurses accommodation. • Small investment required

USC Hospital, Los Angeles Seismically isolated with lead-rubber bearings Remained functional in the Northridge earthquake

Bhuj Hospital, Gujarat, India • Seismically isolated with lead-rubber bearings by Robinson Seismic • Replaced the hospital destroyed in the 2001 earthquake. • Design guidance given by Earthquake Engineering NZ members • NZ design funded by New Zealand Ministry of Foreign Affairs and Trade

Bhuj Hospital Gujarat India NZ design assistance NZ lead-rubber bearings

Wanganui Hospital – Surgical wing

Wellington Regional Hospital

Shimla Hospital, India

Wellington Hospital Accident and Emergency Building

Christchurch Women’s Hospital

Hospitals and seismic isolation • • • USA west coast India seismic zones 4 and 5 Japan Taiwan Turkey New Zealand

Conclusion • Seismic isolation of important hospital buildings has many advantages • More and more countries are recognising the benefits of investing in this protection measure • Seismic isolation would suit many new hospitals in Indonesia • Retrofitting of existing ones could be considered