Abstract

The damage of Large-span Spatial Steel Structure (LSSS) can destroy the entire engineering project, and wind-induced weld tensile damage is a structural damage, which is more likely to occur. Some damaged nodes may not immediately endanger the safety of the structure. To a certain extent, the damage can lead to the collapse of the structure, resulting in large number of casualties and property loss. In order to discover and prevent these dangers in advance, an experiment about Large-span spatial wind-induced damage self-diagnosing and warning system is designed in this paper. Firstly, the equivalent structure model that can reflect the structural damage is built; secondly, some nodes’ load information is obtained by sensors and is delivered to computer; thirdly, the information of damage is analyzed; finally, virtual instrument and database sharing technology is used to establish a damage self-diagnosing and warning system. The results show that the system can monitor wind-induced weld tensile damage and remotely send real-time information to users.

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