{"id":null,"ids":[],"kind":"named in documents","name":"Golden Gate Bridge pylons","tied_by":"name","block":null,"release":"v0.7.1","rows_columns":["t","id","year","y","date","kind","topic","outcome","summary","tier","source","leaf","scan","addr","quote","note","title","how","g","rec","sc"],"rows":[["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:114/2",1990,1990,"","building","study or report",null,"Golden Gate Bridge pylons · other: monolithic reinforced concrete panel and frame construction","unverified","C123303273",114,"https://archive.org/details/C123303273/page/n113",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:114/3",1990,1990,"","building","study or report",null,"Golden Gate Bridge pylons · other: south pylons support end of 1125 ft side span and end of 320 ft arch span","unverified","C123303273",114,"https://archive.org/details/C123303273/page/n113",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:114/4",1990,1990,"","building","study or report",null,"Golden Gate Bridge pylons · other: north pylons support 1125 ft suspension span","unverified","C123303273",114,"https://archive.org/details/C123303273/page/n113",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:115/1",1990,1990,"","measure","study or report",null,"Golden Gate Bridge pylons · height ft: up to 250 ft high","unverified","C123303273",115,"https://archive.org/details/C123303273/page/n114",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:115/2",1990,1990,"","finding","study or report",null,"Golden Gate Bridge pylons · finding: Base shear demands one to six times greater than nominal capacities","unverified","C123303273",115,"https://archive.org/details/C123303273/page/n114",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:115/3",1990,1990,"","finding","study or report",null,"Golden Gate Bridge pylons · finding: Base moment demands significantly greater than tension capacities of foundations","unverified","C123303273",115,"https://archive.org/details/C123303273/page/n114",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:131/4",1990,1990,"","finding","study or report",null,"Golden Gate Bridge pylons · finding: cable tie-downs in the pylons quite vulnerable; damage could cause secondary damage","unverified","C123303273",131,"https://archive.org/details/C123303273/page/n130",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:131/5",1990,1990,"","finding","study or report",null,"Golden Gate Bridge pylons and anchorage housings · finding: reinforced concrete; damage similar to approach viaducts in [name withheld] 8+ earthquake","unverified","C123303273",131,"https://archive.org/details/C123303273/page/n130",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,2.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:59/1",1990,1990,"","measure","study or report",null,"Golden Gate Bridge tie-downs · other: total calculated stress not greater than 4 Fy (printed as '4 Fy)","unverified","C123303273",59,"https://archive.org/details/C123303273/page/n58",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:6/5",1990,1990,"","finding","study or report",null,"Golden Gate Bridge pylons and anchorage housings · finding: Reinforced concrete pylons and anchorage housings would experience damage similar to the approach viaducts","unverified","C123303273",6,"https://archive.org/details/C123303273/page/n5",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:7/5",1990,1990,"","finding","study or report",null,"Golden Gate Bridge pylons · finding: cable tie-downs quite vulnerable; damage could cause secondary damage","unverified","C123303273",7,"https://archive.org/details/C123303273/page/n6",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:84/1",1990,1990,"","finding","study or report",null,"Golden Gate Bridge pylons · finding: Demand/Capacity ratio 3.6 using f'c of 6,000 psi; possible concrete shear failure","unverified","C123303273",84,"https://archive.org/details/C123303273/page/n83",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:84/2",1990,1990,"","finding","study or report",null,"Golden Gate Bridge pylons · finding: Possibility of concrete shear failure when ground acceleration reached 0.20g","unverified","C123303273",84,"https://archive.org/details/C123303273/page/n83",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:84/3",1990,1990,"","recommendation","study or report",null,"Golden Gate Bridge pylons · recommendation: Urgent need to strengthen the pylons","unverified","C123303273",84,"https://archive.org/details/C123303273/page/n83",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:84/4",1990,1990,"","finding","study or report",null,"Golden Gate Bridge cable tie-downs · finding: Failure of the pylons may particularly endanger the cable tie-down and the main suspension span","unverified","C123303273",84,"https://archive.org/details/C123303273/page/n83",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:129/7",1990,1990,"1990","finding","study or report",null,"Golden Gate Bridge pylons · finding: Pylons need retrofitting anyway","unverified","C123303273",129,"https://archive.org/details/C123303273/page/n128",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0]]}