城市道桥与防洪
城市道橋與防洪
성시도교여방홍
URBAN ROADS BRIDGES & FLOOD CONTROL
2009年
7期
114-116
,共3页
连续刚构桥%静力计算%动力计算%自振特性
連續剛構橋%靜力計算%動力計算%自振特性
련속강구교%정력계산%동력계산%자진특성
continuous rigid frame bridge%static calculation%dynamics calculation%vibration characteristic
该文以本池沟特大桥设计为例,分别进行了结构静力计算和动力计算,按照目前实行的JTG D62-2004规范进行了成桥阶段各项检算.计算结果表明:由于本池沟大桥桥面宽度较窄,通过预应力钢束的优化,实现了全预应力混凝土设计的要求.自振特性分析结果表明动力性能良好.研究成果对大跨度连续刚构桥的设计具有一定的借鉴作用.
該文以本池溝特大橋設計為例,分彆進行瞭結構靜力計算和動力計算,按照目前實行的JTG D62-2004規範進行瞭成橋階段各項檢算.計算結果錶明:由于本池溝大橋橋麵寬度較窄,通過預應力鋼束的優化,實現瞭全預應力混凝土設計的要求.自振特性分析結果錶明動力性能良好.研究成果對大跨度連續剛構橋的設計具有一定的藉鑒作用.
해문이본지구특대교설계위례,분별진행료결구정력계산화동력계산,안조목전실행적JTG D62-2004규범진행료성교계단각항검산.계산결과표명:유우본지구대교교면관도교착,통과예응력강속적우화,실현료전예응력혼응토설계적요구.자진특성분석결과표명동력성능량호.연구성과대대과도련속강구교적설계구유일정적차감작용.
Taking the design of the super-large bridge in Benchigou as an example, the article carties out the structural static calculation and dynamic calculation separately. According to the present executive criterion JTG D62-2004, various checking computations in the stage of bridge completion are implemented. The calculation results make clear that the full prestressing concrete design meets the requirements by the optimization of prestressed steel beam because of that the deck width of Benchigou Bridge is narrower. The analysis result of vibration characteristics shows that the dynamic performance is good. The study result has the definite reference for the design of large-span continuous rigid frame bridge.
