dead load moment 中文意思是什麼
dead load moment
解釋
靜載彎矩-
In single pylon cable stayed bridges, and cable stayed bridges without backstays, when the bottom of the tower bears the moment from the dead load, it is concluded that non - symmetric configuration of pile cluster corresponding to the upper structure is more practical than symmetric configuration of pile cluster
當獨塔斜拉橋、無背索斜拉橋等橋梁塔底永久作用有彎矩時，與完全對稱的基礎形式相比較，和上部結構相協調的不對稱基礎形式更加適用。 -
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。 -
In the 5th chapter, single steel bracket of slts under violent external load is supposed to be invalid, structural response and bearing capacity under dead load at that moment of bracket invalidation is analyzed
在第五章中，假定在外荷載的作用下，網架結構的單個支撐鋼牛腿出現失效，研究在牛腿失效瞬時結構在恆載作用下的承載能力和工作狀態。 -
The deflection theory is then used to obtain the most unfavorable moment of the structure under live load, and after the preliminary controlling moment of the structure is obtained by superpositioning the dead and live load moment, the moment and hanger forces arc to be adjusted by the internal force equilibrium method to finally obtain the rational hanger forces
首先用彎矩能量最小原理求出初步索力，然後利用索力得到恆載彎矩，利用撓度理論求出活載作用下結構的最不利彎矩，將恆載與活載彎矩疊加，獲得結構的初步控制彎矩后，採用內力平衡法對彎矩和索力進行調整以得到合理的索力。 -
In accordance with the structural behavior of cable - supported arch bridge of concrete - filled steel tubes, the rational cable forces of the completed bridge of such type are determined by taking the dead load bending moment distribution of arch rib of the bridge as the target control variables, the cable forces as the optimum control variables and by means of influence matrixes
摘要基於鋼管混凝土拉索拱橋的受力特點，以拱肋恆載彎矩分佈為控制目標變量，以斜拉索索力為控制優化變量，藉助影響矩陣，確定鋼管混凝土拉索拱橋的合理成橋索力。
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