本文選題：疊層橡膠支座 + 邊界條件�。� 參考：《建筑結(jié)構(gòu)學(xué)報》2014年04期

【摘要】：為了研究邊界條件對疊層橡膠支座水平剛度的影響,定義了四類邊界條件,采用彎剪模型,用直接積分法推導(dǎo)了在壓剪作用下疊層橡膠支座的水平剛度方程。通過算例分析支座頂面與底面的轉(zhuǎn)動約束參數(shù)k0和kh以及豎向荷載p對疊層橡膠支座水平剛度的影響,對比了不同邊界條件下水平剛度的變化。結(jié)果表明:邊界條件對于疊層橡膠支座的水平剛度影響明顯,在相同參數(shù)k0和kh以及豎向荷載p作用下,邊界條件一(k0≈∞和kh≈∞)時水平剛度KR,I最大,邊界條件四(k0和kh較小)時水平剛度KR,IV最小,當(dāng)邊界條件相同時隨著參數(shù)k0和kh的增大,邊界條件二、三、四下疊層橡膠支座的水平剛度增大且向邊界條件一接近,隨著豎向荷載p的增大各類水平剛度降低。
[Abstract]:In order to study the influence of boundary conditions on the horizontal stiffness of laminated rubber bearings, four kinds of boundary conditions were defined, and the horizontal stiffness equations of laminated rubber bearings under the action of compression and shear were derived by using the bending shear model and the direct integration method. The effects of the rotational constraint parameters k _ 0 and k _ k and vertical load p on the horizontal stiffness of the laminated rubber bearing are analyzed by an example, and the horizontal stiffness changes under different boundary conditions are compared. The results show that the effect of boundary conditions on the horizontal stiffness of laminated rubber supports is obvious. Under the same parameters (k _ 0 and k _ k and vertical load p), the horizontal stiffness KRN _ I is the largest under the boundary condition one (k _ 0 鈮，

本文編號：2080628