信阳师范学院学报(自然科学版)
信暘師範學院學報(自然科學版)
신양사범학원학보(자연과학판)
Journal of Xinyang Normal University (Natural Science Edition)
2015年
4期
616-620
,共5页
陈志伟%蒲黔辉%李晓斌%高玉峰
陳誌偉%蒲黔輝%李曉斌%高玉峰
진지위%포검휘%리효빈%고옥봉
静力荷载试验%动力荷载试验%渡口河大桥%动力特性
靜力荷載試驗%動力荷載試驗%渡口河大橋%動力特性
정력하재시험%동력하재시험%도구하대교%동력특성
static loading test%dynamic loading test%Dukouhe Bridge%dynamic characters
渡口河特大桥曾经是世界桥梁中桥墩最高的一座客货两用的铁路桥。为了验证设计理论的正确性、检验整体工程质量、评估行车系统的安全性,大桥在开通前进行了静、动载试验。试验对象为主桥72 m +128 m +72 m 连续刚构桥,宜昌端半跨结构。根据该桥结构,试验内容包括桥梁变位、主要构件受力状况及桥梁的自振特性;在各种车速和列车紧急制动时桥梁主要测点振幅、位移以及加速度等静、动力特性。试验结果表明,该桥设计理论正确,桥梁制造及施工质量优良,桥梁的工作状态符合设计要求。本试验对今后大桥安全运营提供了必要的技术参数,也为今后更大跨度、更复杂的桥梁结构的静动力特性研究积累了重要的技术资料。
渡口河特大橋曾經是世界橋樑中橋墩最高的一座客貨兩用的鐵路橋。為瞭驗證設計理論的正確性、檢驗整體工程質量、評估行車繫統的安全性,大橋在開通前進行瞭靜、動載試驗。試驗對象為主橋72 m +128 m +72 m 連續剛構橋,宜昌耑半跨結構。根據該橋結構,試驗內容包括橋樑變位、主要構件受力狀況及橋樑的自振特性;在各種車速和列車緊急製動時橋樑主要測點振幅、位移以及加速度等靜、動力特性。試驗結果錶明,該橋設計理論正確,橋樑製造及施工質量優良,橋樑的工作狀態符閤設計要求。本試驗對今後大橋安全運營提供瞭必要的技術參數,也為今後更大跨度、更複雜的橋樑結構的靜動力特性研究積纍瞭重要的技術資料。
도구하특대교증경시세계교량중교돈최고적일좌객화량용적철로교。위료험증설계이론적정학성、검험정체공정질량、평고행차계통적안전성,대교재개통전진행료정、동재시험。시험대상위주교72 m +128 m +72 m 련속강구교,의창단반과결구。근거해교결구,시험내용포괄교량변위、주요구건수력상황급교량적자진특성;재각충차속화열차긴급제동시교량주요측점진폭、위이이급가속도등정、동력특성。시험결과표명,해교설계이론정학,교량제조급시공질량우량,교량적공작상태부합설계요구。본시험대금후대교안전운영제공료필요적기술삼수,야위금후경대과도、경복잡적교량결구적정동력특성연구적루료중요적기술자료。
Dukouhe Bridge is a goods and passenger railway bridge whose piers was once highest in the word . In order to verify the correctness of the design theory ,and to provide the scientific evidence for the acceptance of this bridge ,the static and dynamic loading tests were made .The testing subject was 72 m + 128 m + 72 m con‐tinuous steel structures of a half span structure in Yi‐Chang port .Based on the structure of Dukouhe crossing bridge ,the testing contents contained the deformation of the bridge ;the stress state of the primary members ;the natural frequency ;the displacement ,acceleration and the amplitude of the bridge under the different veloci‐ties and the emergency braking .The test results showed that :the design theory was right ,the quality of the bridge manufacture and construction was good and the working state of the bridge satisfied the design demands . The test provided some technological parameters for the safe operation later ,and accumulated some important technological materials of the static and dynamic characters of the bigger spacing and more complicated bridges .