黑龙江交通科技
黑龍江交通科技
흑룡강교통과기
Communications Science and Technology Heilongjiang
2015年
9期
77-78
,共2页
箱梁%剪力滞效应%负剪力滞%均布面荷载%能量变分法
箱樑%剪力滯效應%負剪力滯%均佈麵荷載%能量變分法
상량%전력체효응%부전력체%균포면하재%능량변분법
box beams%shear lag effect%negative shear lag%uniform-distributed plane load%Energy variational method
应用能量变分法证明了在均布面荷载作用下，在弹性变形范围内简支箱梁顶板恒出现负剪力滞，并给出了顶板弯曲法向应力的计算公式。
應用能量變分法證明瞭在均佈麵荷載作用下，在彈性變形範圍內簡支箱樑頂闆恆齣現負剪力滯，併給齣瞭頂闆彎麯法嚮應力的計算公式。
응용능량변분법증명료재균포면하재작용하，재탄성변형범위내간지상량정판항출현부전력체，병급출료정판만곡법향응력적계산공식。
Energy variational method is applied in this paper proves that under the uniform-distributed plane load, within the scope of the elastic deformation, the top plates of simply supported box beams permanently exist negative shear lag, and gives the formula of bending normal stress of the top plates.
