sort by type 中文意思是什麼
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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。 -
Select the column head to sort by component type
選擇列標頭以便按組件類型排序。 -
Weightiness method is, ordering the crunodes through comparing the weightiness of the crunodes. the main idea of dynamic clustering method is as follow : firstly, regard all the crunodes of planning region as clustering analytic swatches ; secondly, classify di fferent kinds of crunodes according to certain criterion, which must have typical traits ; finally, sort the crunodes by type
而將動態聚類法應用於區域物流中心規劃的基本思路是：先將規劃區域中的所有結點視為聚類分析的樣本：再按一定的標準將樣本分為不同類，每一類具有典型的特徵，最後根據需要按重要程度逐類選擇結點。 -
Based on the grass type lakes character and economic loss rate of water due to pollution, the damage extent of utilizing functions of water in wuliangsuhai lake is assessed though investigation, monitoring and analysis from 2003 to 2005. results show that water in wuliangsuhai lake has not been suitable for serving as a water source for drinking and swimming ( function destroyed ). as a sort of water used for fishing and recreation, not for drinking, water in the lake has also been affected by pollution ( moderately damaged, seriously damaged in 2003 )
選用l . d詹姆斯的污染損失?濃度模型，根據2003年2005年烏梁素海實測水質資料，對烏梁素海湖泊使用功能損害程度進行評價表明:烏梁素海水已不適宜作為飲用水源和游泳用水（功能喪失） ，作為人體非直接接觸的旅遊娛樂用水及漁業養殖用水也受到嚴重威脅（中損害， 2003年為重損害） ，烏梁素海湖水作為一般居住環境用水呈現逐年改善的趨勢（重損害中損害輕損害） ，湖泊功能整體損害程度相當嚴重。
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