门式刚架轻钢结构是根据构件受力大小而采用的变截面的工字形梁、柱组合成框架在平面内受力,框架在平面外以支撑,檩条和墙檩等相连接受力的结构系统。在门式钢架结构设计中,结构布置是否合理,荷载的取值是否准确,檩条及墙檩计算方法是否合理,基础的选型是否正确,这些都关系到门式刚架结构的安全性和经济的合理性。 The portal frame light steel structure is a variable cross-section I-beam which is adopted according to the force component of the component, the column is assembled into a frame which is forced in the plane and the frame is connected with a support system. In the design of the portal frame structure, whether the structure layout is reasonable, the load value is accurate, the calculation method of purlins and wall 是 is reasonable and the basis of the selection is correct, which are related to the security of portal frame structure and Economic rationality.