Seismic Performance of A Regular Steel Building with A Controlled Cradle System

Abstract

During a large earthquake, traditional lateral seismic resistance systems can suffer serious damage to the structural system, and many buildings need to quickly return to their original function and function after an earthquake. One of the suggested methods is to use the rocking motion of the building at the base. In fact, it can be said that the basis of this plan is based on the idea that the building should be designed and implemented in such a way that it is not completely attached to the ground and moves like a cradle during an earthquake; in this case, the structure is expected to withstand the incoming movements and earthquake damage is generally concentrated in predetermined and easily repairable points in the structure. The lateral load-bearing system of divergent bracing absorbs horizontal deformations due to the presence of the connecting member, thereby providing a high energy absorption capability for the structure. It is also possible to replace the connecting member after an earthquake occurs. In this study, after verifying and ensuring the modeling method, 3-, 6-, 9-, and 12-story models with a link member system in different base vector states were examined. The results indicate that the method of fixing the base of the structure has a great impact.