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Title: Distributed strain sensor networks for in-construction monitoring and safety evaluation of a high-rise building
Authors: Ye, XW
Ni, YQ 
Xia, YX
Issue Date: 10-Sep-2012
Source: International journal of distributed sensor networks, 10 Sept. 2012, v. 8, no. 9, 685054, p.1-13
Abstract: The New Headquarters of Shenzhen Stock Exchange (NHSSE), currently being constructed in Shenzhen, China, is a high-rise building with a height of 245 m. One salient feature of NHSSE is its huge floating platform with an overall plan dimension of 98 m × 162 m and a total height of 24 m, making it one of the largest cantilever structures in the world. In recognition of the uniqueness of the floating platform, a long-term structural health monitoring (SHM) system has been designed and implemented by The Hong Kong Polytechnic University for both in-construction and in-service monitoring of NHSSE. As part of this monitoring system, 224 vibrating-wire strain gauges have been permanently installed to measure the strain responses of key structural components of the floating platform. A wireless strain monitoring system by integrating local tethered data acquisition and long-range wireless data transmission has been developed for real-time strain monitoring and visualization. This paper presents the stress evolution of the floating platform during dismantlement of temporary supports on the basis of the real-time monitoring data and the statistical stress analysis and safety evaluation of the floating platform by use of the long-term monitoring data, as well as the effect of the welding residual stress on structural safety of NHSSE.
Keywords: Buoyancy
Data communication systems
Sensor networks
Stress analysis
Tall buildings
Publisher: Sage Publications, Inc.
Journal: International journal of distributed sensor networks 
ISSN: 1550-1329
EISSN: 1550-1477
DOI: 10.1155/2012/685054
Rights: Copyright © 2012 X. W. Ye et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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