橫動式橋梁 的英文怎麼說
中文拼音 [héngdòngshìqiáoliáng]
橫動式橋梁
英文
traversing bridge-
With the actual locale incestigating, the actual locale testing and the theories analyzing of the reason of the diseases producing of the exceed limit of horizontal swing and steel pole ' s break, and summaried the reinforcing measure of the top bear armor plate beam
通過對京廣線鄭州黃河大橋40米上承式鋼板梁橫向擺動嚴重超限及鋼梁桿件斷裂等情況的現場調查、現場測試和理論分析及病害原因產生的機理，總結提出了上承式鋼板梁的加固措施。Because of the original design standard was low, the horizontal angur rigidity is serious lack, when the high speed train passes, the exceed limit of the horizontal swing had affected the lifting of the main trunk line, these diseases had been existed earlier but had not been gotten to resolve radical, and along with the increasing in speed of railroad train, these diseases performance will be more seriously, it ' s time for resolve
同時提速列車對橋梁結構的動力作用增大，特別是對上承式鋼板梁。由於原設計標準低，橫向剛度嚴重不足，高速列車通過時橫向擺動嚴重超限等已嚴重影響了主要干線的提速，這些病害很早就存在但沒有得到根治，隨著列車提速，這些病害表現越來越嚴重，已到了必須整治的時候了。Case teaching in management, which emphasizing the interaction between the teacher and the students, attaching importance to training students ' ability of autonomous learning, cooperative learning, innovation, healthy personality and team awareness, will build up a bridge between management theory and practice and is bound to becoming the major trend of teaching with strong vital force in the teaching of management
摘要管理案例教學強調師生互動，注重學生自主學習、合作學習與創新能力、思維能力以及健全人格、團隊意識的培養，在橫亙于管理理論與實踐之間的溝壑上架起一座橋梁，必將發展成為管理教學中生命力極強的主流教學模式。Based on qualitative analysis and comparison of several options for suppressing transverse vibration on deck type steel plate girder of railway bridge, conclusions are made as follows : with static reinforcing, the vibration amplitude can be suppressed to some extent, but quasi - resonance of the bridge can not be avoided, moreover, the construction is inconvenient and costly. with option of two bridge connection, the effectiveness of vibration suppression is clear ( the damping ratio approaches 50 % ) and it is fairly economic and easy, however, the quasi - resonance of the bridge can not be avoided either. with dynamic option ( mtmd option ), the quasi - resonance of the bridge can be effectively avoided ( the damping ratio is up to 51. 38 % as tested in field ), moreover, the construction cost is low, and the construction is simply and convenient
通過對目前抑制鐵路上承式鋼板梁橋橫向振動的幾種方案進行定性的分析和比較，認為：靜力加固方案可以使橋梁振幅有所減小，但不能避免準共振現象的發生，而且工程造價較高，施工也不方便；兩橋連接方案減振效果明顯（減振率近50 % ） ，比較經濟也比較方便，但同樣不能避免準共振現象的發生；動力減振方案（ mtmd抑振方案）可以有效的抑制橋梁的準共振現象（現場試驗中減振率達51 . 83 % ） ，而且工程造價較低，施工簡單、方便。1. after a series of comprehensive testing and structure analysis to various bridges on the guangshe, huning, jinqin, shenshan, jingguang. ln our opinion, the key problems of the railroad bridge are as follows : ( 1 ) bridge construction is not well at the request of the railroad train speed - lift, primarily because of low dynamic property of the horizontal frame ; ( 2 ) the bad liability of the bridges structure, concrete beam ' s horizontal plank coupling form ; the low capacity of some of the bridges
在對廣深、滬寧、京秦、沈山、京廣干線上不同橋梁結構進行的一系列綜合試驗的結果分析后認為，我國鐵路橋梁目前存在的主要問題為：橋梁結構不適應列車提速的要求，主要反映為結構橫向的動力性能較差；橋梁結構的耐久性問題；混凝土梁的橫隔板聯結方式；部分橋梁承載能力不足。According to different mechanisms, there exist several types of resonance, including the bridge resonance induced by the periodical actions of moving load series of the weights, centrifugal forces and lateral winds of vehicles, the bridge resonance induced by the loading rates of moving load series of vehicles, the bridge resonance induced by the periodical loading of train vehicles excited by rail irregularities, wheel flats and hunting movements, and the vehicle resonance induced by periodical actions of the regular arrangement of bridge spans and their deflections
根據發生機理的不同，車橋系統可能發生幾種不同形式的共振，包括由車輛重量、離心力、橫向平均風荷載等形成移動荷載列的周期性動力作用引起的橋梁共振，由移動荷載列加載速率引起的橋梁共振，由軌道不平順、車輪扁疤、輪對蛇行等周期性加載引起的橋梁共振；由橋跨的規則性排列及其撓度的影響，對移動車輛形成周期性動力作用使車輛出現的共振。分享友人