Evaluation of DIAGRID and TUBE structural systems in bionic high-rise buildings

چکیده مقاله

The most important issue in the design of high-rise building is the lateral load system that accordingly, the selection of a structural systems that can ductility, stiffness, and sufficient resistance based on valid regulations provide is the most important principle in the field of high-rise building because the parameters of stiffness, ductility and structural resistance will change with variation the type of lateral load systems a relatively large amount. therefore, in this study, two structural systems tube and diagrid in similar structures (in plan, height, loading, etc) with 30 and 38 floors has been modelled in software ABAQUS and after the calculation of earthquake factors on structures mentioned (by program written in MATLAB based on 2800 regulation). Analysis of static and liner dynamic and nonlinear static (pushover), respectively is done on structures 30 and 38 floors of the diagrid and 30 and 38 floors of the tube and finally after analysing of 4 structure studied, the advantages and disadvantages and relative superiority of the two systems lateral load in structures mentioned based on stiffness parameters, relative displacement, ductility and resistance compared with each other. the importance of this comparison is that based on its finding can be determined the system suitable lateral load based on the seismic hazard at the site of construction. The results of the above analysis show that the diagrid structures, have stiffness higher than the tube structures but its plasticity is lower than that the tube system.

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