科技视界
科技視界
과기시계
Science&Technology Vision
2014年
17期
111-112
,共2页
桥墩%抗震设计%有限元%反应谱分析
橋墩%抗震設計%有限元%反應譜分析
교돈%항진설계%유한원%반응보분석
Pier%Seismic design%Finiteelement%Response spectrum analysis
以3×30m连续梁桥为例，在桥墩高度为5m时，建立该桥的三维有限元模型。桥梁主梁和桥墩通过弹性连接来模拟桥梁支座，考虑土和桩基的相互作用，通过土弹簧来模拟，并在桥梁横向和纵向两个方向输入地震作用。采用反应谱法进行分析。
以3×30m連續樑橋為例，在橋墩高度為5m時，建立該橋的三維有限元模型。橋樑主樑和橋墩通過彈性連接來模擬橋樑支座，攷慮土和樁基的相互作用，通過土彈簧來模擬，併在橋樑橫嚮和縱嚮兩箇方嚮輸入地震作用。採用反應譜法進行分析。
이3×30m련속량교위례，재교돈고도위5m시，건립해교적삼유유한원모형。교량주량화교돈통과탄성련접래모의교량지좌，고필토화장기적상호작용，통과토탄황래모의，병재교량횡향화종향량개방향수입지진작용。채용반응보법진행분석。
This is a study on the building of the three-dimensional finiteelement model. It takes the continuous beam bridge which is 3í30m in length and 5m in height as an example. The bridge bearings are supposed to be constructed by elastic connect-ion of the bridge girder and pier. To take the bridge as a whole, the interaction between soil and pile foundation should be put into consideration. Soil spring is used to simulate the model, and the seismic effect is input in horizontal and vertical direction of the bridge. The data are analyzed by response spectrum method.
