dead load on bridge 中文意思是什麼
dead load on bridge
解釋
橋（橋梁）恆荷載-
Analysis on dead load and dynamical load test on third bridge of yiyang zijiang river
益陽資江三橋靜動力荷載試驗分析 -
Dead load on bridge
包括橋結構本身的自重 -
Secondly, calculation theory of construction for suspension bridge is presented under the ideal condition of dead load design. linetype change stiffness of cable and slip stiffness of supporting points are deduced based on segmental catenary theory. then numerical analysis method through sgkz2000 software are introduced in detail about calculating design linetype for suspension bridge, unstressed length of cable, erection linetype of cable and pre - displacement of saddle without loads, erection linetype of wire strands, the fixed position for erecting cable band and linetype of lifting stiffening girders
其次，根據懸索橋恆載設計理想狀態建立了懸索橋施工計算原理；以分段懸鏈線索理論為基礎，推導了懸索的線形變化剛度和懸索支點的滑移剛度；介紹了懸索橋成橋設計線形計算、吊索無應力長度計算、空纜線形與預偏量計算、絲股架設線形計算、索夾安裝位置計算和加勁梁吊裝線形計算的具體方法、數值演算法及軟體sgkz2000的計算模塊的實現。 -
( 2 ) the change of ratio of spans has a great effect on the whole bridge under dead load and sunshine temperature differential. on the contrary, it has a smaller effect on the bridge under annual temperature change
（ 2 ）跨徑比值變化，對主梁、橋墩在自重荷載與日溫差作用下的受力有較大影響，而對主梁、橋墩在年溫度變化荷載下的受力影響較小。 -
The optimization model of the cable tensile force is established, resolving the ideal finished state of considering syntheticly the requirement including the dead load, active load and presress of structure, meanwhile, providing a forward - calculating method for determining the rational construction state on the foundation of the optimization model. on the other hand how to determine and adjust the important parameter, the cable midst tensile forces and the main feam form setting levels in constructing cable - stayed bridge, has also been analyzed, besides, the corresponding calculation method is introduced and applied to the actual construction controlling of xian tao han jiang highway bridge well
本文以仙桃漢江公路大橋為工程背景在斜拉橋設計計算方面進行了的研究，建立了斜拉橋索力優化模型，一方面解決了能綜合考慮結構恆載、活載及預應力等多方面因素的理想成橋狀態確定問題；另一方面在確定合理施工受力狀態問題上提出了一套以索力優化模型為基礎的正裝計演算法。同時對斜拉橋施工中關鍵參數斜拉索中間索力和主梁立模標高的確定和調整做了進一步的分析，提供了相應的計算方法，並應用於仙桃漢江公路大橋施工控制過程中，取得了良好的效果。 -
By contrasting curved bridge and straight bridge, influence of dead load and prestressing force on the stress in cantilever casting period of curved bridges is analyzed. in this paper, the controlling problem in construction phase is specially studied
通過曲線箱梁橋與直線箱梁橋的對比，模擬計算並著重分析了施工階段自重、預應力等因素對曲線箱梁橋懸澆時應力的影響。 -
This paper, in allusion to damage of expansion joint of bridge, introduces a sort of new structure of jointless device - semi - integral abutment jointless bridge, and establishes model of general structure finite element of this bridge, and in details analyses its qualities of stress. the model considers the interaction of superstructure - substructure - soil. resistance of the soil behind abutment adopts still soil pressure and elastic resistance when the temperature rising, but active soil pressure when dropping. analysis of qualities stress of bridge includes of action of dead load, car load, temperature load of season character. taking an 100m length pc semi - integral abutment jointless bridge as instance, the paper establishes the model of plane frame by applying large common software - anasys, and analyses it by elastane and large deformation to imitate character of stress and deformation of general bridge. at the same time corresponding models of finite element of joint bridge and integral abutment bridge are established, and unique stress and performance of structure of semi - integral abutment jointless bridge are researched by comparing and analysing character of three different models under same loading, and controlling factor of design and constitution are generalized. in conclusion, for semi - integral abutment jointless bridge, on one hand shear, moment and deflection of the main beam and axis force of substructure are approximate with that of joint bridge, and integral stifmess of structure is increased and damage of expansion joint is eliminated, on the other hand there is axis force in main beam, shear and moment of substructure are bigger than that of joint bridge. in all this type of jointless bridge has rational stress and is worth of application and popularization
半整體式橋臺無縫橋梁計算模型考慮了上部結構-下部結構-土的共同作用；臺後土抗力升溫時採用靜止土壓力加彈性土抗力，降溫時採用主動土壓力；分析橋梁受力性能時考慮了結構自重、車輛荷載和季節性溫變荷載的作用。以一座橋長100mpc半整體式橋臺無縫橋梁為實例，採用大型通用軟體ansys建立平面框架模型，進行彈性、大變形分析，模擬全橋受力和變形特點；同時建立與此對應的有伸縮縫橋梁和整體式橋臺無縫橋梁有限元模型，通過三種橋型同步加載對比分析，研究半整體式橋臺無縫橋梁獨特的受力特點和結構性能，總結其設計控制因素和構造要求。通過本文研究知：半整體式橋臺無縫橋梁主梁的剪力、彎矩、撓度和下部結構的軸力與梁式橋相近，結構整體剛度增大，併除去了伸縮縫病害；但主梁增加了軸力，下部結構剪力、彎矩較梁式橋大；綜合分析是一種受力合理有實踐和推廣價值的橋型。 -
Based on the geometrical non - linear finite element theory, a fine iterative method of simulating all construction stages of self - anchored suspension bridge is proposed and used to pingsheng bridge. the construction plans of suspension rod and second dead load are discussed in details. the model test of pingsheng bridge is completed
此外，對平勝大橋的整體穩定性及極限承載力進行了分析，並在全橋模型上進行了超載試驗研究，結果表明，平勝大橋的總體穩定是有保障的。 -
In the end, the steel - reinforced concrete arched bridge ( chun ' an weiping bridge ), which span is 198m, is analyzed by the proposed three - dimensional nonlinear finite element method and also those gained conclusions are directly adopted in the computation. the universal stability coefficient and nonlinear buckling stability coefficient of the bridge are respectively computed, in which the dead load and the live load are assembled according to the criterion. on the other side, the regularities of creep deformation and subsidiary stress of the investigated bridge under the first - stage dead load are carefully researched
最後，將本文所提出的三維非線性分析方法及其主要研究成果直接應用於198m跨勁型骨架式鋼管混凝土拱橋「淳安威坪大橋」的分析計算中，對該橋在最不利恆載和活載組合下的一般特徵值失穩系數和非線性屈曲系數進行了對比研究，並對一期恆載長期作用下該橋的徐變變形、附加應力以及截面應力、應變重分佈規律分別進行了深入研究。 -
The rational cable force under dead load of gonghe bridge is calculated by the least bending strain energy method 2. cable force controlled methords are introduced. the initial construction cable force of gonghe cable - stayed bridge are calculated by trial methord based on anvance analysis 3
介紹了斜拉橋施工中常用的施工控制方法及相應的索力控制方法，分析了公和橋施工中所採用的「二次張拉到位」的索力控制方法的特點和優點，通過基於正裝分析的試算方法得出公和橋施工中拉索的初始張拉力。 -
Dynamic performance of pingsheng bridge and the ground - anchored suspension bridge model, which has the same structural parameters as pingsheng bridge, is calculated. furthermore, the influence on dynamic performance for pingsheng bridge of structural parameters, such as rise - span ratio of main cable, dead load
6 .針對大跨度自錨式懸索橋可能存在的風致振動，對平勝大橋進行了節段模型和全橋模型風洞試驗研究，研究表明:平勝大橋具有足夠的抗風穩定性。
分享友人