The steel-pipe truss arch is widely used in building projects,so it is necessary to study the influencing factors for its loadbearing performance.Here,taking the roof of a gymnasium for example and based on considering the geometric nonlinearity and material nonlinearity,the influence on the ultimate load-bearing capacity of the truss arch made by the initial imperfection,load distribution and boundary supporting is analyzed,at the same time,by using the hinged support and fixed support separately,the free vibration frequency and modes of the structure are compared and analyzed.The analysis re...
