閉合橋 的英文怎麼說
中文拼音 [bìgěqiáo]
閉合橋
英文
drawbridge-
In this paper, a high performance sma system applied to steel bridge deck is put forth in allusion to the pavement project of the wuhan junshan yangtze river highway bridge. it comprises steel slab, zn coating layer, closing layer, adhesive, pre - mixed asphalt stone and dual layer sma from bottom to top. it is based on the fea results of the forces and deformation of the pavement layer by means of the algor feas, according to this bridge ' s traffic and the ambient temperature varying range of the pavement layer
本文針對武漢軍山長江公路大橋鋼箱梁橋面鋪裝工程，從鋪裝層環境溫度變化范圍、交通量等使用條件出發，在用algorfeas有限元分析軟體分析鋪裝層受力變形基礎上，提出了（即鋼板+金屬鋅塗層+封閉層+粘接劑+預拌瀝青碎石+雙層sma ）的高性能鋼橋面sma鋪裝體系，並對這種sma的組成材料，包括改性瀝青、集料、礦粉、纖維進行了比較研究，設計了這種sma的配合比，對sma混合料的性能進行了對比試驗，對這種sma方案進行了疲勞性能研究，驗證了所選擇sma方案的可行性。Motorists are advised that in order to facilitate joint replacement works, the fast and middle traffic lanes on the following section of tolo highway, tai po will be temporarily closed from 10. 00 p. m. to 6. 00 a. m. on the following day between 5 and 10 march 2007
臨時封閉大埔吐露港公路行車線駕駛人士請注意，為配合進行更換天橋駁口工程，大埔吐露港公路下列路段的快線及中線，將于In 2005 provides the opening ceremony, the 6th session of chinese international printing trade fair for the 95th session of china cultural item commodity exposition prints the store depot for the beijing too level bridge to do installs the build, the 14th session of beijing international broadcast movie television equipment exposition especially provides the etiquette service, the 12th session of international advertisement new media, the new technology, the new equipment, the new material for the beijing seven color corona science and technology development limited company demonstrated the trade fair does for beijing branch skill development numerical code limited company installs the build, provides the main floor build as well as the opening ceremony etiquette service for the 12th session of asian and pacific retail merchant congress and the chinese international commodity exposition especially, provides the opening ceremony and the closing ceremony promulgation party for the 15th session of national invention exposition, provides the etiquette service, for the third session of view lake for the sixth session of beijing ( cbd ) international commerce festival opening ceremony. the international commercial vehicle unfolds the opening ceremony to provide the etiquette service, provides the etiquette service, the chinese international energy and the electric power for berlin airport and the capital airport friendship and cooperation signing ceremony unfolds provides the main floor build as well as the opening ceremony etiquette service, the chinese international energy exposition provides the opening ceremony etiquette service, the 11th session of china down clothing and the clothing clothing exposition changshu snow rhyme flutters the booth which the fashionable clothing limited company does to install the build especially
2005年為第95屆中國文化用品商品博覽會提供開幕式、第6屆中國國際印刷交易會為北京市太平橋印刷材料廠做特裝搭建、第十四屆北京國際廣播電影電視設備展覽會為北京七彩光環科技發展有限公司提供禮儀服務、第十二屆國際廣告新媒體、新技術、新設備、新材料展示交易會為北京科藝拓展數碼有限公司做特裝搭建、為第十二屆亞太零售商大會暨中國國際商品博覽會提供主場搭建以及開幕式禮儀服務、為第十五屆全國發明展覽會提供開幕式和閉幕式頒獎晚會、為第六屆北京（ cbd ）國際商務節開幕式提供禮儀服務、為第三屆觀湖.國際商務車展開幕式提供禮儀服務、為柏林機場和首都機場友好合作簽約儀式提供禮儀服務、中國國際能源和電力展提供主場搭建以及開幕式禮儀服務、中國國際能源博覽會提供開幕式禮儀服務、第十一屆中國羽絨製品及服裝服飾博覽會常熟市雪韻飄時裝有限公司做的展臺特裝搭建。Based on theory of big flexibility defective close columnar shell, use adding partition board to resolve the partial buckling problem in partially cfst arch bridge ' s hollow steel tube segment. the formula of how to confirm the space between partition boards was deduced to content whole and partial buckling
在大撓度有缺陷閉合圓柱殼體局部穩定理論基礎上，提出採用增設橫隔的辦法以解決部分灌注鋼管混凝土拱橋中空心鋼管段的局部穩定問題，並導出了在同時滿足鋼管整體和局部穩定性的前提下，需增設橫隔的間距的公式。In the design of real - time control system, the paper takes three - phase full - bridge mosfet inverter as the real - time control main circuit, and adopts a control scheme with 120 ? switching mode combined with half - bridge pulse width modulation ( pwm ), which would avoid straightthrough short of a certain bridge. phase current is detected by single current sensor ; three - phase position signals generated by position sensors could not only supply commutation information for inverter, but also be used for speed detecting based on signals " period measurement, which makes the speed sensor unnecessary. the whole control system adopts speed and current dual closed - loop control strategy in order to construct a high performance rare - earth permanent magnetic brushless dc motor ( repm bldcm ) full - digital real - time control system
在實時控制系統的設計中，本文以三相全橋mosfet逆變電路作為實時控制主電路，採用120導通方式結合半橋pwm調制的控制方案，從而有效地避免了橋臂的直通短路；本文用單電流傳感器實現對相電流的檢測，來自位置傳感器的三相位置信號不僅為逆變電路提供換相信息，而且也用於基於信號周期測量的轉速檢測，這樣就省去了速度傳感器；系統採用的是速度、電流雙閉環控制策略，力求構建高性能的稀土永磁無刷直流電動機全數字實時控制系統。Abstract : the multifunctional inverter power sourcethe handy inverter welding, plating & charging manchine, developed with advanced inverter and micro - electronics control techniques, adopts “ half - bridge power expansion supply midpoint voltage autocontrol setting ”, and technically and effectively having solved inverter subvision of inverter power expansion circuit for leaning magnetism, reliability of high - power inverter setting, achives combination of constantcurrent and constantvoltage export, and realizes low - voltage dc and high - voltage ac double power supply
文摘:運用先進的高頻逆變技術和微電子控制技術設計研製的逆變式多功能電源便攜式逆變焊鍍充電多用機，採用「半橋式功放級供電中點電壓自動控制調節裝置」 ，在技術上解決了逆變功放電路因偏磁而造成的逆變顛覆，有效地解決了大功率逆變器的可靠性問題；進行多種外特性的綜合設定，實現了恆流與恆壓輸出的合一；與傳統焊機相比，實現了開環和閉環狀態下都互不影響的低壓直流電瓶和高壓交流雙供電The influence caused by geometric nonlinear behaviors should be considered in forward analysis and backward analysis during construction processes. only the reasonable finished bridge state should be got by approach iteratively of forward analysis and backward analysis, the non - circled problems of the results between forward analysis and backward analysis will reach to the minimum degree
2 ）施工階段的正裝和倒拆分析中考慮斜拉橋的幾何非線性因素影響，而且必須經過正裝與倒拆的反復迭代才能得到理想的成橋狀態，才能將正裝倒拆計算中結構的不閉合問題減小到最低限度。分享友人