河南城建学院学报
河南城建學院學報
하남성건학원학보
JOURNAL OF PINGDINGSHAN INSTITUTE OF TECHNOLOGY
2011年
5期
16-21
,共6页
薄壁钢箱梁%畸变横向位移%几何特征参数%荷载分解
薄壁鋼箱樑%畸變橫嚮位移%幾何特徵參數%荷載分解
박벽강상량%기변횡향위이%궤하특정삼수%하재분해
thin-wall steel box girder%lateral distort displacement%geometric characteristic parameter%load decomposition
薄壁钢箱梁抗弯刚度和抗扭刚度大、安装养护方便、轻巧美观，在公路交通中广泛应用。而钢箱梁壁厚较薄，因此钢箱梁的畸变效应研究变得比较重要，此前多数文献仅就横隔板的设置对钢箱梁的畸变效应进行过研究，而对钢箱梁的其他几何特征参数对钢箱梁畸变效应影响的研究很少。通过有限元软件就简支钢箱梁采用壳单元分析其畸变效应，发现除跨中设置的横隔板对箱梁效应明显外，箱梁的宽高比及箱梁顶板与腹板的夹角对箱梁的畸变效应也很明显。
薄壁鋼箱樑抗彎剛度和抗扭剛度大、安裝養護方便、輕巧美觀，在公路交通中廣汎應用。而鋼箱樑壁厚較薄，因此鋼箱樑的畸變效應研究變得比較重要，此前多數文獻僅就橫隔闆的設置對鋼箱樑的畸變效應進行過研究，而對鋼箱樑的其他幾何特徵參數對鋼箱樑畸變效應影響的研究很少。通過有限元軟件就簡支鋼箱樑採用殼單元分析其畸變效應，髮現除跨中設置的橫隔闆對箱樑效應明顯外，箱樑的寬高比及箱樑頂闆與腹闆的夾角對箱樑的畸變效應也很明顯。
박벽강상량항만강도화항뉴강도대、안장양호방편、경교미관，재공로교통중엄범응용。이강상량벽후교박，인차강상량적기변효응연구변득비교중요，차전다수문헌부취횡격판적설치대강상량적기변효응진행과연구，이대강상량적기타궤하특정삼수대강상량기변효응영향적연구흔소。통과유한원연건취간지강상량채용각단원분석기기변효응，발현제과중설치적횡격판대상량효응명현외，상량적관고비급상량정판여복판적협각대상량적기변효응야흔명현。
The thin-walled steel box girder is widely used in road traffic for its merits such as largest bending stiffness and torsional rigisity,easy to install and maintenance and lightweight.So the research for distort effect of steel box girder becomes more important.In recent,the distort effects of diaphragm on steel box girder was studied in the majority of literature,while the study for distort effect of the other geometric characteristic parameters at steel box girder is rare.Therefore,this article has studied the distort effect by analyzing the finite element model with a series of geometric characteristic parameters.The results show that the distort effects of steel box girder was obviously affected by depth-width ratio and the angle between the roof and web.
