In order to study the flutter of long-span pedestrian suspension bridge and its aerodynamic control. a 420m-span pedestrian suspension bridge is used as an engineering example. the wind-induced vibration of seven particular aerodynamic sections is studied by wind tunnel tests. and the soft flutter phenomenon of two kinds of aerodynamic sections is identified. https://www.parisnaturalfoodes.shop/product-category/veg-broth-yeast-free/