Ductility design method of steel structure workshop

In ductility design, the following parameters should be considered, namely, yield load, failure load, yield deformation and failure deformation. In addition, in order to ensure a more reasonable ductility design, designers should first try to calculate the above ductility performance parameters, and analyze the yield load value, yield deformation index, to ensure that the long-span steel structure can be reliable and safe use. In addition, in ductility design, designers should calculate the accurate bearing capacity proportional coefficient, to ensure that large span steel structure can reserve a certain size of bearing capacity before the occurrence of structural failure. Finally, in the ductility design process, designers should accurately and reasonably determine the deformation proportional coefficient, so as to ensure that the long-span steel structure can have a certain amount of deformation capacity reserve before the failure of the structure. In a word, the performance design of steel structure is based on ductility. Designers should consider the calculation and analysis of geometric nonlinearity and material nonlinearity of the system, so as to obtain the yield load, failure load and other performance parameters of steel structure, and on this basis, put forward the safety design performance control index in line with the requirements of national standards.

In the performance design of steel joints, designers should pay attention to the following contents :(1) based on the design of deformation capacity of steel joints, designers should carefully analyze the relationship between load, strain and displacement. At the same time, the ductility of steel joints can be determined by reasonable data analysis. In addition, in the design process of steel joints, in order to ensure the design quality, designers should ensure that the proportional coefficient between the deformation value and the yield deformation value is not less than 1.2, to avoid the corresponding problems caused by the steel quality is not up to standard. It should be noted that in the process of designing the deformation capacity of steel joints, designers should ensure that the elastic-plastic deformation value is within the range of the standard requirements, and the bearing capacity deformation value should also meet the standard requirements, so as to ensure that the use of long-span steel structures is always in the best state. (2) In the performance design process of steel joints, designers should pay attention to the design of bearing capacity. Therefore, in the design work, designers need to have a detailed grasp of the load and strain relationship analysis method, and can be flexibly used, so as to determine the size of the load value more accurately, to ensure that the performance design of steel structure joints can be orderly.