路缘石截面惯性矩与截面模量计算_张建海

张建海(,362333):混凝土路缘石主要力学性能之一抗折强度的计算公式,涉及到较为复杂的形心矩惯性矩及截面模量的计算一般计算时都简化截面,导致误差较大,然而即使简化截面后的计算也相当繁琐笔者介绍了运用AutoCAD软件计算路缘石截面的惯性矩及截面模量的方法:;;:U41714:A:1000-033X(2003)04-0006-011(1)AutoCAD,1(H1)(2)()1)AB,A2)3)AutoCAD/0,/0,/0,,/AutoCAD0,:(Command):(Command):-massprop:1(Selectobjects:1found)(Selectobjects):)))(REGIONS))))(Area):68894184(Perimeter):1041100(Boundingbox):X:0100)300100Y:0100)240100(Centroid):X:144179Y:116117(Momentsofinertia):X:1244925501169Y:1937241853161(Productofinertia):XY:1129661495130(Radiiofgyration):X:134.42Y:167169X-Y(PrincipalmomentsandX-Ydirectionsaboutcentroid):I:310468987178(along)[0199-0116]J:497630562114(along)[0116-0199],()C(144179,116117),yx=116117mm4)()C(3)(),:(Command):(Command):-massprop:1(selectobjects:1found)(Selectobjects):)))(REGIONS))))(Area):68894184(Perimeter):1041100(Boundingbox):X:-144179-155121Y:-116117-123183(Centroid):X:0100Y:0100(Momentsofinertia):X:315129663192Y:492969886163(Productofinertia):XY:-29164662188(Radiiofgyration):X:67163Y:84159X-Y(PrincipalmomentsandX-Ydirectionsaboutcentroid):I:310468987178(along)[0199-0116]J:497630562114(along)[0116-0199],Iz=315129663192kg#mm2W=Iz/yx=315129663192/116117=2712659158kg#mm,,,,收稿日期:2003-01-13#62003(4)