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pp. 1435-1445 | Article Number: ijese.2017.092
Published Online: July 22, 2017
Abstract
The main components of high-rise buildings are brace system with belt truss including arms in center and perimeter coloumns of belt truss in some floors that the most important role of belt truss is appropriate distribution of lateral forces from central core toward perimeter coloumns. So, in comparison with arm restraint system, other components of structure have more contribution in lateral loading. In this paper, linear and non-linear performance of frames in arm system with belt truss was investigated under non-linear static analysis or Push-over load. Investigated variables in this research are two 20-story 7-bay frames consist of two bays of central core. One of them was located in 10th and 20th story of belt truss. Investigated frames were metal which were analyzed in limited components software of sap 2000. Results show that using belt truss (bracing) system with core intermediate arm improve non-linear behavior of structure considerably and existing belts arms in building height causes increasing maximum final resistance of energy absorption tolerance force and structure hardness in all loading stages. Also, in frame with belt truss all members have better and safer performance level than without belt condition.
Keywords: truss system performance, arm system, non-linear static analysis, high rise buildings, sap 2000
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