山西建筑
山西建築
산서건축
SHANXI ARCHITECTURE
2014年
25期
210-211,212
,共3页
预应力混凝土刚构桥%施工阶段%弹性稳定性
預應力混凝土剛構橋%施工階段%彈性穩定性
예응력혼응토강구교%시공계단%탄성은정성
pre-stressed concrete rigid-frame bridge%construction stage%elastic stability
以某(50+80+80+50)m 四跨预应力混凝土刚构桥为工程背景,依据实际施工工艺,采用 MIDAS 有限元分析软件建立了该桥施工阶段空间有限元分析模型,基于结构第一类稳定分析理论,研究了该桥各施工阶段结构的弹性稳定性,并计算求解了各施工阶段结构的弹性稳定安全系数。
以某(50+80+80+50)m 四跨預應力混凝土剛構橋為工程揹景,依據實際施工工藝,採用 MIDAS 有限元分析軟件建立瞭該橋施工階段空間有限元分析模型,基于結構第一類穩定分析理論,研究瞭該橋各施工階段結構的彈性穩定性,併計算求解瞭各施工階段結構的彈性穩定安全繫數。
이모(50+80+80+50)m 사과예응력혼응토강구교위공정배경,의거실제시공공예,채용 MIDAS 유한원분석연건건립료해교시공계단공간유한원분석모형,기우결구제일류은정분석이론,연구료해교각시공계단결구적탄성은정성,병계산구해료각시공계단결구적탄성은정안전계수。
This paper takes a pre-stressed concrete rigid-frame bridge,with(50 + 80 + 80 + 50)m span,as engineering background. According to the construction technology,the finite element model during construction was established by MIDAS software. Based on the first kind of stabili-ty analysis theory,the elastic stability of the bridge was researched and the elastic stability safety coefficient was calculated in each construction stage.