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truss bridge 桁架橋,鋼梁橋 。

trust

Wan zhou yangtze river bridge is the establishing large span steel truss bridge now , and the property of it is the lower stiffness of the main girder . when the speed is high , the analyses and the vibration control of vehicles and bridge are very important , especially the dynamic lateral response of the system 萬州長江大橋是目前在建的大跨度鋼桁架拱橋,其特點是主梁結構剛度較小,在高速行車速度下,對起車橋耦合振動分析及其控制尤其是車橋系統橫向動力響應研究則尤為重要。

The authors describe the modelling of a railway steel truss bridge with long - span in order to analyse the detailed distribution of stress for members and nodal plates in main truss , the detailed deformation and stress distribution due to frame effect on transversal bracing plane in truss bridge , and the detailed distribution of stress in important parts of the steel plate girder bridge with initially transversal deformation by using sseb in this article 本文建立大跨鐵路鋼桁梁橋和鋼板梁橋全橋結構仿真分析數學模型,說明了鋼桁梁橋桿件和節點板詳細應力分布、平面框架詳細變形與應力分布和有變形缺陷鋼板梁橋重要部位應力的仿真分析結果等問題。

Three factors of carrying capacity , shippmg , traffic flux are considered among alteration and upgrade . carrying capacity upgrade aims at simply - supported girder bridge and arc bridge ( truss bridge and double arch bridge ) of sea - route nets . to navigation , headroom chiefly is required , secondlythe jacking - up technique and economical analysis are given attention to two or morethings . the simply - supported grider bridge and mono - arch bridge are touched upon in navigation upgrade 在升級改造中主要探討了承載力升級、通航升級、交通流量升級三個因素。其中承載力升級主要針對航道網上的簡支梁橋和拱橋(桁架拱橋和雙曲拱橋) 。

This paper deduces the equation groups of large span steel truss bridge which installed mr dampers of coupling vibration of vehicles and bridge . and provide the two strategies of semi - active control 本文從理論上首次推導出設置擬況阻尼器的大跨度鋼析架橋梁車橋禍合振動的系統受控方程并提出了兩種控制策略。

4 . using processed frequencies and first order modal dofs in a few points as network inputs , trained neural network gives excellent assessment results of a steel truss bridge 4 、本文以結構的低階頻率和少數節點的一階振型分量,經預處理后作為神經網絡輸入,準確實現了對一鋼析粱橋的損傷位置和損傷程度識別。

Corrosion may have played a role here as well : the minneapolis bridge ? what ' s known as a deck steel truss bridge ? was a concrete roadway supported by gridwork of steel 金屬的銹蝕也許在這些事故中扮演者某種角色:明尼阿波利斯橋是一座鋼板桁架橋,也就是有鋼格來支撐混凝土橋面。

Results of illustrative examples of a six - bay plane truss bridge model are given in order to demonstrate the effectiveness of the proposed procedure 最后,用一六跨平面桁架橋模型進行數值模擬,驗證文中所提方法的有效性。

A new type bridge named long - span cable - truss bridge ( lsctb ) was created which can combines advantage of cable and truss structure 該橋型一方面利用纜索的抗拉性能;另一方面利用桁架結構剛度大的優點。

Spatial analysis on continuous plate - truss compositesteel truss bridge across the wuhu changjiang river 蕪湖長江大橋連續板桁結合梁的空間結構分析

Research on reinforcement technique to enhance lateral stiffness of steel truss bridge on existing railway 既有線鋼桁梁橋橫向剛度加固技術

Modal identification of steel truss bridge based on ambient excitation 基于環境激勵下鋼桁梁橋的模態識別

Damage identification and diagnosis of existing steel truss bridge 既有鋼桁梁橋損傷識別與診斷方法研究