【摘要】 大跨度桥梁结构震害相对较少,仅在1995年日本神户地震中,只有个别支座等损坏,主要原因是由于大跨度桥梁结构的长柔特性。因此,对于斜拉桥、悬索桥等跨海、跨江大桥需要建立长期监测台阵,实时监测桥梁结构的震动情况,获取强震发生时地面震动、桥梁震动的记录,为大跨度桥梁抗震设计和加固提供科学依据。基于此,本文主要介绍我们大跨度桥梁观测台阵建设的基本思路以及存在的基本问题,以及区别于传统观测手段的新观测仪器在大跨度桥梁观测台阵建设中应用的探讨。更多还原

【Abstract】 Long-span bridges were seldom damaged in earthquakes,mainly because of their length and flexibility.Only few bearings were damaged during the 1995’s Kobe earthquake. Therefore,when it comes to seismic design and reinforcement for suspension bridges and cable-stayed bridges,it is necessary to establish long-term monitoring station for real-time monitoring of the bridges,and to record the ground motion and bridge vibration during strong earthquakes. This paper mainly presents the basic thoughts and problems in construction of monitoring station for long-span bridges,and discusses the application of new observation instruments other than traditional observation methods in monitoring station building.更多还原