桥梁新型减震橡胶支座减震耗能性能研究

本文简要介绍了作者最近研制的新型减震橡胶支座及其滞回阻尼性能。用作者发展的桥梁空间非线性地震反应分析程序（ＮＳＲＡＰ）对装有橡胶支座多跨连续梁桥进行了纵桥向非线性地震反应分析。研究结果表明，桥梁新型减震支座具有较好的减震耗能性能，且性能稳定，因而该支座是一种较理想的实用减震支座。

STUDY ON ENERGY ABSORPTION OF A NEW ASEISMIC RUBBER BEARING FOR BRIDGE

In this paper,a new aseismic rubber bearing, which was developed recently by the authors,and its properties are described.Nonlinear earthquake response analyses of multi-span continuous girder bridges are carried out by use of authors' program NSRAP (a 3-D nonlinear seismic response analysis program). The study results show f the new aseismic rubber bearing is found to reduce greatly the earthquake response of bridges by absorbing input energy,and its properties are stable. Tile bearing is suitable for earthquake resist design of bridges.