This article discusses a successful application of the big span steel structure truss assemble prefabricated parts and slip technology in Qingdao Liuting International Airport project phase II.

FEM software was used to build the analytic model of steel truss structures with lead rubber bearings and common bearings.

The steep stadium with awning of steel truss structure is a typical structure.

For the purpose of finite element simulation considering the fatigue damage,the experiment on dynamic characteristics and static response of a steel truss specimen with local welding details and under specific loading was carried out.

Design scheme of steel structure of reverse building method is adopted in the Guangzhou Mingsheng Square Project, long span steel arch truss structure is applied to transition story in building engineering, which is a new try.

Aiming at the lack of the uniform standard for manufacture,weld and lossless test of truss structure of steel pipe in China,as an example of college student activity building of Ningxia University,the weld examination request of welding line for crossing node,and the welding line strengthening technology for joint weld are presented in this paper.