Tarbiat Modares University Modares Civil Engineering Journal 2476-6763 11 4 2011 11 22 APPLICATION OF SHEAR-FRICTION HINGE CONNECTION IN MID-STORY STAIR SLABS TO COLUMN JOINT APPLICATION OF SHEAR-FRICTION HINGE CONNECTION IN MID-STORY STAIR SLABS TO COLUMN JOINT 123 123 11533 FA Hamid Farshchi Farmaniyeh, Dibaji Shomali, Arghavan, No:21 Journal Article Providing mid-story stair slab to column hinge connection is practically difficult in concrete moment resisting frame structures. The problem is due to the fact that this connection is modeled as hinge connection in the modeling phase of structural analysis but in practice because of lack of proper detailing this is not fully satisfied and can lead to inappropriate column behavior and may affect the structural behavior as a whole. In this article, a simple hinge connection detailing based on shear-friction behavior has been proposed. This connection is based on the Iranian national building code and can provide the proper hinge connection in the mentioned joint. Providing mid-story stair slab to column hinge connection is practically difficult in concrete moment resisting frame structures. The problem is due to the fact that this connection is modeled as hinge connection in the modeling phase of structural analysis but in practice because of lack of proper detailing this is not fully satisfied and can lead to inappropriate column behavior and may affect the structural behavior as a whole. In this article, a simple hinge connection detailing based on shear-friction behavior has been proposed. This connection is based on the Iranian national building code and can provide the proper hinge connection in the mentioned joint. https://mcej.modares.ac.ir/article_11533_c21f4ce780c5c9d774f79841b81fdc6d.pdf