交通科技
交通科技
교통과기
TRANSPORTATION SCIENCE & TECHNOLOGY
2015年
4期
17-20
,共4页
双曲拱桥%桥梁加固%截面加厚%粘钢%承载能力
雙麯拱橋%橋樑加固%截麵加厚%粘鋼%承載能力
쌍곡공교%교량가고%절면가후%점강%승재능력
hyperbolic arch bridge%bridge strengthening%cross section thickness%steel bearing capac-ity
针对使用多年且以重载交通为主的双曲拱桥，通过现场调查分析其主要病害，并采用有限元法验算桥梁承载能力。对承载能力不足的主拱圈截面，分别采用加大截面、粘贴钢板、加大横系梁等方法进行了加固，在有效提升结构承载能力的同时，还提高了结构的耐久性，为延长桥梁的服役寿命提供了保障。通过静动载试验及加固后超过1年的观察，桥梁运行状况良好，证明了所提出的加固方法的可行性和有效性。
針對使用多年且以重載交通為主的雙麯拱橋，通過現場調查分析其主要病害，併採用有限元法驗算橋樑承載能力。對承載能力不足的主拱圈截麵，分彆採用加大截麵、粘貼鋼闆、加大橫繫樑等方法進行瞭加固，在有效提升結構承載能力的同時，還提高瞭結構的耐久性，為延長橋樑的服役壽命提供瞭保障。通過靜動載試驗及加固後超過1年的觀察，橋樑運行狀況良好，證明瞭所提齣的加固方法的可行性和有效性。
침대사용다년차이중재교통위주적쌍곡공교，통과현장조사분석기주요병해，병채용유한원법험산교량승재능력。대승재능력불족적주공권절면，분별채용가대절면、점첩강판、가대횡계량등방법진행료가고，재유효제승결구승재능력적동시，환제고료결구적내구성，위연장교량적복역수명제공료보장。통과정동재시험급가고후초과1년적관찰，교량운행상황량호，증명료소제출적가고방법적가행성화유효성。
Aiming at the hyperbolic arch bridge with heavy traffic over the years,the main damages were analyzed by field investigation,and the bearing capacity of the bridge was checked by the finite element method.For the main arch ring section lacking of bearing capacity,we could use the method of increasing section,pasting steel plate and increasing cross beam to reinforce.,These methods effec-tively enhanced the bearing capacity of the structure,and improved the durability of the structure, which can provide a guarantee to extend the bridge service life .Through the static and dynamic load test and the observation of the bridge over a year,the operation of the bridge is good,.The feasibility and effectiveness of the method proposed in this paper is proved.
