{"title":"旧金山-奥克兰海湾大桥-东跨","authors":"M. Nader, B. Maroney","doi":"10.1680/jbren.21.00078","DOIUrl":null,"url":null,"abstract":"With daily traffic of 260,000 vehicles, the San Francisco-Oakland Bay Bridge is a major connection in the San Francisco Bay Area. The new bridge is a designated lifeline structure (to remain open for emergency traffic after a major seismic event) with a design life of 150 years. The new bridge is 3.6 km long and consists of four distinct structures: a low-rise post-tensioned concrete box girder near the Oakland shore; a 2.4 km long segmental concrete box girder (Skyway); a first-of-its-kind self-anchored suspension (SAS) bridge with a 385 m main-span over the navigational channel; and a post-tensioned concrete box girder that connects to the east portal of the Yerba Buena Island tunnel. Opened in 2013, the signature span of the bridge is the self-anchored suspension (SAS) bridge with a length of 624 m and a total deck width of 79 m accommodating 10 lanes of traffic in addition to a bike/pedestrian path. The $6.4 billion USD mega project was procured under multiple contracts and was delivered using the traditional design-bid-build method. This paper describes the key design innovations and construction methods which address the unique challenges on this project.","PeriodicalId":44437,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Bridge Engineering","volume":"1 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2022-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The San Francisco-Oakland Bay Bridge – Eastern Span\",\"authors\":\"M. Nader, B. Maroney\",\"doi\":\"10.1680/jbren.21.00078\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"With daily traffic of 260,000 vehicles, the San Francisco-Oakland Bay Bridge is a major connection in the San Francisco Bay Area. The new bridge is a designated lifeline structure (to remain open for emergency traffic after a major seismic event) with a design life of 150 years. The new bridge is 3.6 km long and consists of four distinct structures: a low-rise post-tensioned concrete box girder near the Oakland shore; a 2.4 km long segmental concrete box girder (Skyway); a first-of-its-kind self-anchored suspension (SAS) bridge with a 385 m main-span over the navigational channel; and a post-tensioned concrete box girder that connects to the east portal of the Yerba Buena Island tunnel. Opened in 2013, the signature span of the bridge is the self-anchored suspension (SAS) bridge with a length of 624 m and a total deck width of 79 m accommodating 10 lanes of traffic in addition to a bike/pedestrian path. The $6.4 billion USD mega project was procured under multiple contracts and was delivered using the traditional design-bid-build method. This paper describes the key design innovations and construction methods which address the unique challenges on this project.\",\"PeriodicalId\":44437,\"journal\":{\"name\":\"Proceedings of the Institution of Civil Engineers-Bridge Engineering\",\"volume\":\"1 1\",\"pages\":\"\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2022-06-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the Institution of Civil Engineers-Bridge Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1680/jbren.21.00078\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, CIVIL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the Institution of Civil Engineers-Bridge Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1680/jbren.21.00078","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
The San Francisco-Oakland Bay Bridge – Eastern Span
With daily traffic of 260,000 vehicles, the San Francisco-Oakland Bay Bridge is a major connection in the San Francisco Bay Area. The new bridge is a designated lifeline structure (to remain open for emergency traffic after a major seismic event) with a design life of 150 years. The new bridge is 3.6 km long and consists of four distinct structures: a low-rise post-tensioned concrete box girder near the Oakland shore; a 2.4 km long segmental concrete box girder (Skyway); a first-of-its-kind self-anchored suspension (SAS) bridge with a 385 m main-span over the navigational channel; and a post-tensioned concrete box girder that connects to the east portal of the Yerba Buena Island tunnel. Opened in 2013, the signature span of the bridge is the self-anchored suspension (SAS) bridge with a length of 624 m and a total deck width of 79 m accommodating 10 lanes of traffic in addition to a bike/pedestrian path. The $6.4 billion USD mega project was procured under multiple contracts and was delivered using the traditional design-bid-build method. This paper describes the key design innovations and construction methods which address the unique challenges on this project.