STRUCTURAL HEALTH MONITORING AND EVALUATION OF DAMPING CHARACTERISTICS FOR A HIGH RISE STEEL BUILDING BASED ON MEASUREMENT DATA

2013 ◽  
Vol 19 (42) ◽  
pp. 419-424
Author(s):  
Toshiharu ARAKAWA ◽  
Yuta KIKUNAGA
2008 ◽  
Vol 56 ◽  
pp. 489-494 ◽  
Author(s):  
Yong Xia ◽  
Yi Qing Ni ◽  
Jan Ming Ko ◽  
Hua Bin Chen

Under the auspices of the Asian-Pacific Network of Centers for Research in Smart Structures Technology (ANCRiSST) and the International Society for Structural Health Monitoring of Intelligent Infrastructure (ISHMII), a structural health monitoring benchmark problem for highrise slender structures is being developed by taking the instrumented Guangzhou New Television Tower as a test bed. The benchmark problem consists of the following four tasks: (i) output-only modal identification and finite element model updating, (ii) damage detection using simulated data, (iii) optimal sensor placement for structural health monitoring, and (iv) damage detection using field measurement data. This paper will address some key issues related to the development of this first benchmark problem for high-rise structures. More details of the study can be found in the website: http://www.cse.polyu.edu.hk/benchmark/index.htm


2017 ◽  
Vol 6 (3) ◽  
pp. 279-284
Author(s):  
Hyun-hee Ryu ◽  
Jong-soo Kim ◽  
Eun-gyu Choi ◽  
Sang-hoon Lee

Author(s):  
Xiangfeng Zhang ◽  
Wenshou Zhang ◽  
Qianjin Yue ◽  
Xin Li

The laying of subsea pipelines is usually carried out by means of S-lay technology. As stingers become longer and longer, wave-induced fatigue damage problem for the stinger main hinges connecting both the stinger and the stinger adjustment frame fore leg to the vessel stern via a common shaft may have to be taken into consideration. Usually, there is a structural health monitoring system (SHMS) to be installed on the stinger for performance assessment. A procedure for assessing long-term wave-induced fatigue damage to a stinger is thus presented in this paper with continuum damage mechanics (CDM)-based fatigue damage assessment method. By taking the stinger of DPV7500 being built for Chinese Offshore Oil Engineering Corporation (COOEC) as an example, a structural health monitoring-oriented finite element model of the stinger is established. Water tank experiments were conducted to measure the roll, pitch and heave motion responses of the vessel model for different wave height, wave period and directions. The measurement data are then used to carry out the stress analyzes of the stinger to identify stress characteristics at hot spots of the stinger. The accumulative fatigue damage at hot spots during the stinger design life is finally evaluated using a CDM-based fatigue damage evolution model.


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