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Investigation of the Adequacy of Continuity Plates in Cruciform Steel Columns

Hamidzadeh, Alireza | 2022

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 55755 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Maleki, Shervin
  7. Abstract:
  8. It is very common to use moment frame system in earthquake-prone areas in the two main directions of buildings. This system is very popular among architects due to the creation of unobstructed openings between the columns and the possibility of using openings in them.The column is one of the main components in the design of orthogonal moment frame systems and plays an important role in the performance of this system. The columns that are in the two main directions of the intersection of two moment frame systems, due to the existence of the 30-100 rule in seismic design regulations, must be able to withstand 100% of the design earthquake force in one direction and 30% of the same force in the perpendicular direction at the same time . Therefore, they must have sufficient resistance and hardness in both directions. The cruciform column is one of the few sections that has the same behavior in both directions, which is very useful in the design of these orthogonal systems. But the continuity plates in the panel zone have a special state for bidirectional loading and are investigated and researched in this study. By using numerical calculations and the nonlinear finite element method on several types of conventional buildings with moment frame systems, the final results of this research show that the continuity plates are designed based on the relationships of the I shaped columns that are in the AISC360-16 and AISC341-16 specified for cruciform columns are also suitable and these relations can be used to obtain the dimensions of the CPs of cruciform columns
  9. Keywords:
  10. Steel Moment Resistant Frame ; Continuity Plate ; Nonlinear Finite Element Analysis ; Cruciform Columns ; Diaphragm Plates

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