科技创新与应用
科技創新與應用
과기창신여응용
Technology Innovation and Application
2015年
3期
1-2,3
,共3页
钢管混凝土拱桥%几何非线性%材料非线性%静风响应
鋼管混凝土拱橋%幾何非線性%材料非線性%靜風響應
강관혼응토공교%궤하비선성%재료비선성%정풍향응
concrete-filled steel tube arch bridge%geometrical nonlinearity%material nonlinearity%static wind response
以巫峡长江大桥为研究背景，分别研究几何非线性以及几何和材料双重非线性对大桥拱肋在静风荷载作用下内力与位移响应的影响。结果表明：在静风荷载作用下，几何非线性和双重非线性对该桥拱顶的横向位移和扭转位移以及拱肋的面外弯矩影响比较显著，故在进行大跨度钢管混凝土拱桥静风响应分析时不可忽略非线性的影响。
以巫峽長江大橋為研究揹景，分彆研究幾何非線性以及幾何和材料雙重非線性對大橋拱肋在靜風荷載作用下內力與位移響應的影響。結果錶明：在靜風荷載作用下，幾何非線性和雙重非線性對該橋拱頂的橫嚮位移和扭轉位移以及拱肋的麵外彎矩影響比較顯著，故在進行大跨度鋼管混凝土拱橋靜風響應分析時不可忽略非線性的影響。
이무협장강대교위연구배경，분별연구궤하비선성이급궤하화재료쌍중비선성대대교공륵재정풍하재작용하내력여위이향응적영향。결과표명：재정풍하재작용하，궤하비선성화쌍중비선성대해교공정적횡향위이화뉴전위이이급공륵적면외만구영향비교현저，고재진행대과도강관혼응토공교정풍향응분석시불가홀략비선성적영향。
Taking the Wu Gorge Bridge over Yangtse River as the research background, the effect of geometrical nonlinearity and geometric and material double nonlinear to the internal force and displacement response of the arch rib of the bridge under the action of static wind load were studied. The results showed that: under the static wind load, geometry nonlinear and double non-linear have an obvious influence on the lateral displacement, the torsion displacement and the out-of-plane bending moment of the arch. The influence of the nonlinearity can not be ignored in the process of long-span concrete-filled steel tube arch bridge static wind response analysis.
