Structural safety monitoring for Nanjing Yangtze River Bridge^①

来源期刊：中南大学学报(英文版)2004年第3期

论文作者：黄方林 何旭辉 陈政清 曾储惠

文章页码：332 - 335

Key words：structural safety monitoring; Nanjing Yangtze river bridge; safety monitoring system; vibration response

Abstract: In order to evaluate objectively and accurately the integrity, safety and operating conditions in real time for the Nanjing Yangtze River Bridge, a large structural safety monitoring system was described. The monitoring system is composed of three parts: sensor system, signal sampling and processing system, and safety monitoring and assessment system. Combining theoretical analysis with measured data analysis, main monitoring contents and layout of measuring points were determined. The vibration response monitoring was significantly investigated. The main contents of safety monitoring on vibration response monitoring are vibration of the main body of the Nanjing Yangtze river bridge, collision avoidance of the bridge piers, vibration of girders on high piers for the bridge approach and earthquake. As a field laboratory,the safety monitorying system also provides information to investigate the unknown and indeterminate problems on bridge structures and specific environment around bridges.