long span bridges 中文意思是什麼
long span bridges
解釋
長跨橋-
Simulation of stochastic wind field of long - span bridges considering wind effects of the bridge towers
大跨度橋梁考慮橋塔風效應的隨機風場模擬 -
As to the current problems existing in the identification for these flutter derivatives, the dissertation tries to trace the development in the identification for the past unsteady aerodynamic forces of long - span bridges. it also investigates the method for flutter and buffeting analysis and the flutter derivatives. based on the present methods used in obtaining the unsteady aerodynamic forces and flutter derivatives, and co - funded by a natural scientific fund from the nation and a key project fund from the railway ministry, the current research has attempted to develop a device which can be employed in the wind tunnel to test flutter derivative through a forced vibration method
鑒于目前橋梁斷面顫振導數識別的水平和存在的問題，本文通過對大跨度橋梁非定常氣動力、顫振分析方法及顫振導數識別方法的回顧和評述，基於現有的非定常氣動力和顫振導數的測試方法，在國家自然科學基金與鐵道部重點學科基金的聯合資助下，研究開發了一套在風洞中採用強迫振動法測試顫振導數的裝置。 -
According to the development of the society and economy, pile foundations have played more and more important effects in the development of modern civil engineering. at present, pile foundations in the offshore petroleum platforms, super high - rise buildings and long span bridges, should not only bear vertical loads but also accept horizontal loads to adapt high, heave, large buildings
目前我國海洋石油平臺、超高層建築、大跨度橋梁等中所使用的樁基礎不僅能承受巨大的豎向荷載，而且能承受較大的水平荷載，以適應現代建築物高、重、大的要求。 -
With the development of super - tall buildings and long - span bridges, it is necessary to massly use super - long piles because of their high bearing capacity
隨著高層、超高層建築和大跨橋梁的建設，具有高承載力優點的超長樁的大量使用成為必然。 -
Computation of aerodynamic forces for long - span bridges
大跨度橋梁氣動力計算 -
For long - span bridges, long - space spatial structure, high - rise buildings, high - rise tower, wind load is one of control loads for structure design, beside for the many use of kinds of the light weight and high strength material and many use of glass cladding, the problem of wind load on the building structure become more serious
對于大跨度橋梁、大跨度空間結構、高層建築、高聳塔桅結構來說，風荷載是其結構設計中主要的控制荷載之一，同時由於各種輕質高強度材料及玻璃幕墻的大量運用，使得建築結構受風影響的問題更加突出。 -
The results of wind forces acting on high buildings are the fatigue failure by vibrations, local failure under pressure and toppling failure etc. wind forces are one of design loads on towering structures, high buildings and long - span bridges, sometimes even be decisive function
風對建築結構的作用表現為結構的振動疲勞破壞、局部受壓破壞和整體傾覆等，風荷載是高聳結構、高層建築和大跨度橋梁的重要設計荷載之一，有時甚至起決定性的作用。 -
In this paper, the achievements of study on wind - induced vibration, especially on flutter and buffeting, of long - span bridges
在簡要回顧國內外關于橋梁兩種主要風振顫振及抖振控制研究的基礎上，對大跨徑橋梁的風振提出了控制措施。 -
An efficient wind field simulation technique for wind - induced vibration analysis of long - span bridges is first introduced in this paper ， and the statistic characteristics of the simulated wind field are then discussed on this basis ， the time - domain expressions for the buffeting and self - excited forces acting on long - span bridges are further given a simple and practical method is presented for the non - linear parameter identification involved in the calculation of self - excited forces by using the above theory ， the wind field and aerodynamic forces acting on the hong kong ting kau bridge are obtained the time - domain buffeting response analysis of the bridge shows that the analytic results agree quite well with the experimental ones this indicates that the theory presented in this paper has reached a practical level
介紹了一種快速高效的用於大跨度橋梁風致振動分析的風場模擬方法，並對模擬風場的統計性質進行了討論和驗證在此基礎上進一步給出了大跨度橋梁抖振力和自激力的時域表達方式，其中針對自激力計算中涉及的參數識別問題，提出了一種簡單實用的非線性參數識別方法本文採用上述理論，獲得了作用於香港汀九大橋上的風場和氣動力，據此對大橋進行的抖振響應時域分析表明，計算結果與風洞試驗結果吻合良好，說明文中述及的這套理論已達到實用的階段 -
Application of hybrid self - excited force model to time - domain analysis of wind - caused buffeting of long - span bridges
混合自激力模型在橋梁風致抖振時域分析中的應用 -
Seismic analysis of long span bridges considering topographic effects and multi - supported excitations
大跨橋梁考慮地形及多點激勵的地震響應分析 -
Methods of seismic response analysis for long - span bridges under multi - support excitations of random earthquake ground motion
隨機地震動場多點激勵下大跨度橋梁地震反應分析方法 -
With the development of the techniques for seismic mitigation and isolation, the fluid viscous dampers are usually equipped at the girder ends of long - span bridges in case the girder ends need to be restricted due to great amount of girder movement or the costly large expansion joints at the girder ends need to be protected
摘要隨著減隔震技術的發展，在大跨度橋梁中，當梁端位移比較大需要限制位移（或梁端設置有價格高昂的大型伸縮縫，需要保護伸縮縫）時，梁端會設置阻尼器。 -
The reform and open policy in china has brought an upsurge in building long - span bridges and tall structures
摘要我國的改革開放政策帶來了大跨度橋梁和高聳結構建設的高潮。 -
Long - span bridges are tending towards longer and more flexible
摘要現代橋梁的發展趨勢是大跨徑、輕柔。 -
For its so many merits, cft ( concrete filled steel tube ) has gotten extensive application in the engineering practice, especially in long - span bridges and high - rise buildings. researches and investigations on the bearing capacities of cft and its time - dependent behavior have been widely carried out
鋼管混凝土以其諸多優點而在高層建築和大跨度拱橋中得到廣泛應用，國內外很多學者對鋼管混凝土構件的極限承載力以及長期載荷作用下核心混凝土的徐變特性進行了大量的試驗研究和理論探索。 -
Research on wind - induced response for long span bridges
大跨度橋梁風振響應問題的研究 -
Coupled buffeting analysis of long span bridges with stationary aerodynamic wings
安裝固定氣動翼板的大跨橋梁抖振分析 -
Wind - induced buffeting fatigue reliability analysis and life estimation of long - span bridges
大跨橋梁風致抖振疲勞可靠度近似分析及壽命估算 -
Finite - element and complete quadratic combination analysis of coupled buffeting for long - span bridges
大跨度橋梁耦合抖振分析的有限元正交組合方法
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