Effect of different angles of rotation of bearing system with irregular application of non-parallel systems in concrete building with dual bearing system

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KHOSHVATAN MEHDI; POURAMINIAN MAJID

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Journal: Journal of Structural and Construction Engineering Year:2022 | Volume:9 | Issue:3 Page(s): 99-114

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Title

Effect of different angles of rotation of bearing system with irregular application of non-parallel systems in concrete building with dual bearing system

Author(s)

KHOSHVATAN MEHDI | POURAMINIAN MAJID | Issue Writer Certificate

Keywords

Irregularity of non-parallel systems

Seismic loads

base shear

Dynamic analysis

Dual system

RC building

Abstract

In the present paper, the effect of rotation with different angles in the Structural bearing system was investigated by irregular non-parallel systems in the concrete structure with the dual design bearing system of the moment frame and the concrete shear wall. Dynamic analysis of the time history of the structure under seven earthquake accelerometers was used. The structure was examined in two different modes, first without rotation in the bearing system and analyzed at an angle of zero degrees. Then, the bearing system was seismically analysed by rotating at angles of 15, 30, and 45 degrees to create irregularities in non-parallel systems. The results of structural behavior were performed by comparing the values of base shear, drift, and torsion effect in the structure. The results of the present study showed that the amount of drift and base shear of the structure in the state that has Irregularity of non-parallel systems in the structure is more than the state of the structure without irregularity of the non-parallel system. Comparing the amount of base shear for the angels and other modes increases the amount of base shear by increasing the rotation angle of the bearing system, which increases the amount of rotation angle, imposes more force on the structure. The amount of base shear for the angle of 30 degrees of rotation of the Structural bearing system in the main direction of the building is more than other angles. The presence of a angle in the Structural bearing system increases the relative displacement in the structure. The analysis results also showed that the non-parallelism of the central core of the structure reduces the lateral bearing capacity of the whole system. As a general conclusion, it can be stated that the higher the rotation angle of the bearing system, the higher the amount of displacement and drift, which is the most critical state for the 30-degree angle and the best performance in the structure for the zero degrees angle.

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APA: Copy

KHOSHVATAN, MEHDI, & POURAMINIAN, MAJID. (2022). Effect of different angles of rotation of bearing system with irregular application of non-parallel systems in concrete building with dual bearing system. JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING, 9(3 ), 99-114. SID. https://sid.ir/paper/1030469/en

Vancouver: Copy

KHOSHVATAN MEHDI, POURAMINIAN MAJID. Effect of different angles of rotation of bearing system with irregular application of non-parallel systems in concrete building with dual bearing system. JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING[Internet]. 2022;9(3 ):99-114. Available from: https://sid.ir/paper/1030469/en

IEEE: Copy

MEHDI KHOSHVATAN, and MAJID POURAMINIAN, “Effect of different angles of rotation of bearing system with irregular application of non-parallel systems in concrete building with dual bearing system,” JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING, vol. 9, no. 3 , pp. 99–114, 2022, [Online]. Available: https://sid.ir/paper/1030469/en

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