發(fā)布時(shí)間：2019-06-03 17:10

【摘要】：新建商丘至合肥至杭州鐵路工程潁上特大橋在主梁斜拉索錨固區(qū)采用相比于隔板更為輕巧的橫梁結(jié)構(gòu)。針對(duì)這種新穎結(jié)構(gòu),為更好地了解其受力特性、優(yōu)化構(gòu)造細(xì)節(jié),建立中支點(diǎn)至中跨跨中間的1/4主梁模型。模型考察主梁橫梁局部應(yīng)力,得到增設(shè)倒角可降低此處橫向拉應(yīng)力的結(jié)論。同時(shí)還關(guān)注腹板剪力分配,得到在無(wú)索區(qū)段中腹板承擔(dān)較大剪力,有索區(qū)段相反的結(jié)論。最后通過(guò)索力作用下橋面板縱向應(yīng)力分布模式,顯示出索力在橋面板的傳力路徑,為結(jié)構(gòu)局部?jī)?yōu)化、橫向分析及結(jié)構(gòu)配筋提供依據(jù)。
[Abstract]:The Yingshang Bridge of Shangqiu to Hefei-Hangzhou Railway Project adopts a lighter beam structure than the partition in the cable-stayed Anchorage area of the main beam. In order to better understand the stress characteristics and optimize the structural details of this novel structure, a 1 鈮，

本文編號(hào)：2492092