Multi-levels wind-resistance design methods of large-span roof structures;

Along with the development of science and technology, beautiful shapes and capacities of providing huge space without inner columns are traits of large-span roof structures.

Due to theirs beautiful shapes and capacities of providing huge space without inner columns, long span roofs have been greatly constructed recently as large-sized public buildings such as airport terminal buildings and stadiums.

Equivalent static wind loads of large-span roof structures;

Analytical approach considering modal coupling effects for buffeting resonant response of large-span roof structures;

Wind nearby long-span roofs are involved in many physical phenomena such as impingement,separation,reattachment,circulation and vortices and the wind pressure distribution is complicated.

The coefficients and power spectra of wind pressure play important roles in computing wind-induced dynamic responses of long-span roofs.

Based on the wind-tunnel test results on two long-span roof structures,complexity of wind pressure on long-span roof is illustrated.

This article summarizes the general measures of wind-induced dynamic response of long-span roof structure,in combination with the roof structure of spectator stand of a sports stadium,does calculation to its node displacement by time-history analysis and makes comparison with and analyzes the results of frequency-region methods.