Golden Gate Bridge pylons
Named in the records1990
16 records of San Francisco tie this place, 1990: 0 decisions of the Board of Supervisors and 16 facts read from city reports. Open the full list, with filters for years, kind and outcome.
- Kind
- Named in the records
- Records
- 16: 0 Board decisions, 16 facts from city reports
- Years
- 1990
What the records say
All 16 records, in date order. The one-line summaries were written by a language model from the printed page; open the page to check the wording.
| When | What the record says | Outcome | Source |
|---|---|---|---|
| 1990 | Golden Gate Bridge pylons and anchorage housings · finding: reinforced concrete; damage similar to approach viaducts in [name withheld] 8+ earthquake | finding | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge pylons · other: monolithic reinforced concrete panel and frame construction | building | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge pylons · other: south pylons support end of 1125 ft side span and end of 320 ft arch span | building | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge pylons · other: north pylons support 1125 ft suspension span | building | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge pylons · height ft: up to 250 ft high | measure | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge pylons · finding: Base shear demands one to six times greater than nominal capacities | finding | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge pylons · finding: Base moment demands significantly greater than tension capacities of foundations | finding | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge pylons · finding: cable tie-downs in the pylons quite vulnerable; damage could cause secondary damage | finding | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge tie-downs · other: total calculated stress not greater than 4 Fy (printed as '4 Fy) | measure | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge pylons and anchorage housings · finding: Reinforced concrete pylons and anchorage housings would experience damage similar to the approach viaducts | finding | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge pylons · finding: cable tie-downs quite vulnerable; damage could cause secondary damage | finding | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge pylons · finding: Demand/Capacity ratio 3.6 using f'c of 6,000 psi; possible concrete shear failure | finding | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge pylons · finding: Possibility of concrete shear failure when ground acceleration reached 0.20g | finding | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge pylons · recommendation: Urgent need to strengthen the pylons | recommendation | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge cable tie-downs · finding: Failure of the pylons may particularly endanger the cable tie-down and the main suspension span | finding | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
| 1990 | Golden Gate Bridge pylons · finding: Pylons need retrofitting anyway | finding | City report: Golden Gate Bridge seismic evaluation scanned page ↗ |
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