Analysis on Impact Force of Rhythmical Body Movement on Temporary Spectator Stand

The rising prosperity of today’s society and the country’s advancement in science, technology and social productivity have been accompanied by a higher level of material needs of the people and their increasing demand for cultural life. In today’s life, all manner of enriched cultural activities have become common occurrences. Nevertheless, prominent security issues are arising from the booming performing arts industry. As commonly observed in cultural and artistic performances, spectators in the stands would often follow the rhythm of music or dance moves and are unable to suppress their emotions and rhythmical body movements, which will pose different dynamic loads on the stands and might even lead to the collapse of the stage. For the purpose of solving the above-mentioned issues, fiber grating is applied to measure the strain of the stands, and the influence of the movements following the music rhythm of the spectators on the stands is investigated in this paper.