Dynamic response of temporary structures due to wind loading

![CDATA[Due to the lack of an international standard for the design of temporary stage structures, there have been several instances where temporary stage structures have failed and resulted in injury or death during strong wind events (Tomasetti, 2012). The aims of this project are to identify the dynamic loads, particularly wind loads, imposed on temporary structures, the response of these structures to wind loads, and the way they are currently designed. Current industry standards, such as AS/NZS 1170.2:2011 – Wind Actions, NCC (National Construction Code) and AS/NZS 1170.0:2002 Structural design actions – General principles, do not provide adequate information and guidance for engineers to determine suitable short term loads for their design, instead relying heavily on using engineering judgement based on experience. By using structural health monitoring technique, wireless sensor technology and finite element modelling, we determined the dynamic properties, including natural frequencies of vibration and deflection mode shapes, of a temporary stage structure under wind action. The measured dynamic properties are compared with computed results obtained by finite element modelling. A greater understanding of the dynamics of this type of structure and their potential structural response to environmental loads, in particular wind loading, can be achieved.]]