
曲线连续梁桥支座模型对结构地震反应影响分析
Effect of bearing model on the seismic response of curved continuous girder bridge
Teflon slide rubber bearing is often used on bridge. The ideal expansion bearing element is usually adopted to simulate this rubber bearing in analysis. This ideal expansion bearing model will ignore friction between Teflon layer and steel surface. This paper takes one curved continuous girder bridge as an example, and employs bilinear sliding bearing element and friction isolator elements to simulate Teflon slide bearings on this bridge. Nonlinear dynamic analysis results show that seismic responses of bridge in which the slide rubber bearings are modeled as ideal expansion bearing elements are overestimated. Seismic responses of bridge adopting bilinear sliding bearing model is similar to that of bridge adopting friction isolator model. Friction isolator can consider the varying friction force of bearing, so using this model to simulate Teflon slide rubber bearing is accordance with the actual case.
滑板橡胶支座 / 连续梁桥 / 双线性滑动支座单元 / 摩擦滑动单元 {{custom_keyword}} /
slide rubber bearing / continuous girder bridge / bilinear sliding bearing element / friction isolator element {{custom_keyword}} /
/
〈 |
|
〉 |