山西建筑
山西建築
산서건축
SHANXI ARCHITECTURE
2014年
33期
167-168,169
,共3页
斜梁桥%预应力%张拉顺序%竖向位移
斜樑橋%預應力%張拉順序%豎嚮位移
사량교%예응력%장랍순서%수향위이
skew girder bridge%prestressed%tension sequence%vertical displacement
以某三跨预应力混凝土连续斜交箱梁桥为依托，利用有限元软件Midas/civil建立了纵向预应力对称张拉、交错张拉和单侧张拉等不同张拉顺序模型，分析了各工况下箱梁左右腹板竖向位移的改变情况，得出了在施工阶段不同张拉顺序对三跨预应力混凝土连续箱梁桥竖向位移的影响规律。
以某三跨預應力混凝土連續斜交箱樑橋為依託，利用有限元軟件Midas/civil建立瞭縱嚮預應力對稱張拉、交錯張拉和單側張拉等不同張拉順序模型，分析瞭各工況下箱樑左右腹闆豎嚮位移的改變情況，得齣瞭在施工階段不同張拉順序對三跨預應力混凝土連續箱樑橋豎嚮位移的影響規律。
이모삼과예응력혼응토련속사교상량교위의탁，이용유한원연건Midas/civil건립료종향예응력대칭장랍、교착장랍화단측장랍등불동장랍순서모형，분석료각공황하상량좌우복판수향위이적개변정황，득출료재시공계단불동장랍순서대삼과예응력혼응토련속상량교수향위이적영향규률。
Based on a skew box girder continuous bridge,this essay utilizes the Midas/civil finite element software to establish the longitudinal pre-stressing symmetrical tension,stagger tension and unilateral tension of different tension sequence of tensioning scheme model,analyzed the change of box beam web under the condition of left and right vertical displacement by changing the tension sequence. It is concluded that different tensioning sequence in construction stage in three spans prestressed concrete continuous box girder bridge,the influence law of vertical displacement.
